when troubleshooting an lcd panel monitor that is malfunctioning factory

Dell Technologies recommends ensuring that the device drivers and BIOS are up to date using the SupportAssist application for optimal video performance and to help resolve common video-related issues.

NOTE: When SupportAssist does not show up in the search results, go to the SupportAssist for PCs and tablets page for information about downloading and installing SupportAssist.

To learn how to manually download and install a device driver such as Chipset, Video card (GPU), and Monitor driver (if required, most monitor drivers are delivered automatically through Windows Update) on your Dell computer, see the Dell knowledge base article How to Download and Install Dell Drivers.

It is essential to verify if the problem is inherent with the monitor, video card (GPU) or video settings on your computer. A straightforward way to identify this is to connect the computer to a known-good external monitor or TV and ensure that the display cable (S-video, VGA, DVI, HDMI, DisplayPort, USB-C, or Thunderbolt 3) is firmly connected to the video port on the computer and the monitor.

If the issue persists on the other monitor it may be due to the video card (GPU) or video settings and not the monitor, go to the step Verify display or video issue in Windows Safe Mode. Else go to the next step.

Performance issues may occur if there is any type of damage that is caused to the display cables or the LCD screen. LCD screen may show that symptoms like LCD screen stops working, work intermittently, color mismatch, flickering, display horizontal or vertical lines if there is damage to the display cables or the LCD screen.

If you do notice a physical damage, contact Dell Technical Support to learn more about repair options that are available in your region. If there is no damage, go to the next step.

Dell monitors provide a self-test feature check (SFTC) and an integrated self-test (BIST) or integrated diagnostic (BID) tool that helps determine if the screen abnormality you are experiencing is an inherent problem with the Dell monitor or with the video card (GPU) and computer settings.

When you notice screen abnormalities like flickering, distortion, clarity issues, fuzzy or blurry image, horizontal or vertical lines, color fade, it is a good practice to isolate the monitor by running a diagnostic test on the Dell monitor.

To learn more about running a diagnostic test on your Dell monitor, see the Dell knowledge base article How to Run a Diagnostic Test on a Dell Monitor.

NOTE: Self-test feature check (SFTC) helps check if the Dell monitor is working normally as a stand-alone device. To check for screen abnormalities such as flickering, distortion, clarity issues, fuzzy or blurry image, horizontal or vertical lines, color fade, and so on, run the integrated self-test (BIST) or integrated diagnostic (BID) test.

NOTE: In certain Dell monitors, the integrated self-test (BIST) or integrated diagnostics (BID) can be run only when one or more video cables are unplugged and the Dell monitor is in self-test mode.

Dell monitors can be reset to factory default settings using the on-screen display (OSD) menu. This can be accessed using the buttons or joystick that is available on the Dell monitor. For step-by-step instructions to reset a Dell monitor to factory default settings, see the User Guide of your Dell monitor at the Dell Manuals website.

Windows Safe Mode allows us to identify if the issue is related to the operating system, video settings, device drivers, or a third-party software. To learn more about how to boot your Dell computer into Safe Mode, see the Dell knowledge base article that is listed below based on the operating system that is installed on your computer:

Windows updates can support your Windows operating system in many ways. Windows updates can solve specific problems, provide protection from malicious attacks, or even add new features to the operating system.

Display settings like brightness, refresh rate, resolution, and power management may affect the performance of your Dell monitor. Changing the display settings can help resolve several types of video issues.

To learn more about changing the brightness, refresh rate and resolution on a Dell computer, see the Dell knowledge base article How to Change the Video Settings or Improve Text in Windows 10.

If you find that the Dell touch-capable monitor is unresponsive to touch or touch works intermittently, you can try some common troubleshooting steps to help fix the issue.

NOTE: Connect the USB upstream cable from your Dell touch-capable monitor to a working USB port on the computer. This is essential for the touch feature to work.

Stress Test can thoroughly diagnose the video card (GPU) on your computer and report any potential hardware problem. Running a stress test on your computer can verify if the hardware components are stable and thus reliable.

System Restore is an integrated Windows tool that is designed to protect and repair the operating system. When something goes wrong with your computer, System Restore must be used before restoring the computer to factory defaults or reinstalling the operating system.

If the diagnostic tests on the Dell monitor and video card (GPU) passed, it is most definitely an issue that is related to software that is installed on your computer. If the above troubleshooting steps did not resolve the issue, to restore your computer to factory defaults as a last resort.

Dell computers are built with a small amount of hard disk space that is reserved for reinstalling your operating system. This method is the easiest way to restore your computer to factory condition. The restoration process deletes all user data from the computer, back up all your files before starting this process.

Dell recommends ensuring that the device drivers and BIOS are up to date using the SupportAssist application for optimal video performance and to help resolve common video-related issues.

NOTE: When SupportAssist does not show up in the search results, go to the SupportAssist for PCs and tablets page for information about downloading and installing SupportAssist.

To learn how to manually download and install a device driver such as Chipset, Video card (GPU), and Monitor driver (if required, most monitor drivers are delivered automatically through Windows Update) on your Dell computer, see the Dell knowledge base article How to Download and Install Dell Drivers.

We must verify whether the problem is the display screen of the laptop, video card (GPU), or video settings on the computer. A straightforward way to identify this is to connect the laptop to an external monitor or TV.

If the issue persists on the external monitor, it may be an issue with the video card (GPU) or video settings and not the laptop LCD panel. Go to verify display or video issues in Windows Safe Mode. Otherwise, go to the next step.

Performance issues may occur if there is any damage to the LCD screen. The display may stop working, work intermittently, flicker, display horizontal or vertical lines, and so on, if there is damage to the display screen.

If you notice a physical damage, contact Dell Technical Support to learn more about repair options that are available in your region. If there is no damage, go to the next step.

Dell laptops have integrated diagnostic tools that can determine if the screen abnormality is an inherent problem with the LCD screen of the Dell laptop or with the video card (GPU) and computer settings.

When you notice screen abnormalities like flickering, distortion, clarity issues, fuzzy or blurry images, horizontal or vertical lines, color fade, running a diagnostic test on the LCD helps identify if the issue is with the LCD panel.

Press and hold the D key and turn on the computer to enter the LCD built-in self-test (BIST) mode. Continue to hold the D key until you see the entire screen change colors.

If you do not detect any screen abnormalities in the integrated self-test mode, the LCD panel of the laptop is functioning properly. Go to the Update the video card (GPU) driver, monitor driver, and BIOS section.

If you notice any abnormalities in the LCD built-in self-test mode, contact Dell Technical Support to learn more about repair options that are available in your region.

Windows Safe Mode does not load any drivers, startup applications, third-party services. This will help us identify if the issue is related to the operating system, video settings, device drivers, or third-party software. To learn how to boot your computer into Safe Mode, see the Dell knowledge base article below based on the operating system that is installed on the computer:

Windows updates can support your Windows operating system in many ways. Windows updates can solve specific problems, provide security patches and protection from malicious attacks, or even add new features to the operating system.

Display settings like brightness, refresh rate, resolution, and power management may affect the performance of the LCD screen on your Dell laptop. Changing or adjusting the display settings can help resolve several types of video issues.

NOTE: Depending on the model of the Dell laptop, the shortcut keys to adjust or change the brightness may differ. See the User Guide or User Manual of your Dell laptop for model-specific information.

If you find that the Dell laptop is unresponsive to touch, touch stops working entirely, or other touch-related issues, you can try some common troubleshooting steps to help fix the touch-related issue.

Stress Test can thoroughly diagnose the video card (GPU) on your computer and report any potential hardware problem. Running a stress test on your computer can verify if the hardware components are stable and thus reliable.

System Restore is an integrated Windows tool that is designed to protect and repair the operating system. When something goes wrong with your computer, System Restore must be used before you try to restore the operating system to factory default settings.

If the diagnostic tests on the LCD panel and the video card (GPU) passed, it is most definitely an issue that is related to software that is installed on the computer. If the above troubleshooting steps did not resolve the issue, you may try to restore the computer to factory default settings as a last resort.

WARNING: Restoring or resetting the computer to factory default settings will erase all personal data on the computer. Back up all important data like documents, images, music files, spreadsheets, videos to an external hard drive or a cloud-based backup like Microsoft OneDrive.

Dell computers are built with a small amount of hard disk space that is reserved for reinstalling the operating system. This method is the easiest way to restore the computer to factory condition. The restoration process deletes all user data from the computer, so be sure to back up all your files before starting this process.

I need to reset my monitor’s settings back to default factory settingsTo reset your monitor’s settings back to its default factory settings, follow these instructions:

My monitor is not turning on even though it is plugged in (external power supply)First, try another device in the same outlet to determine if the outlet is working properly.

Is everything firmly plugged in? It is easy for cables to become loose and not firmly connected, especially if you are using a mobile system. Please check to ensure everything is securely plugged in.

The LED light on the power supply should be GREEN. If the LED light is not on, then either the power supply is dead or there is no power being generated from the power source. Try another power source (outlet) and if this doesn’t work, there may be an issue with the power adapter.

Amber Light: The amber light indicates the monitor is receiving power but is not receiving the video signal being fed from the signal source (camera, computer, etc). This may also signify that the monitor is currently set to the wrong video input; you may need to press the “Auto/Switch” button to select the appropriate input (VGA, HDMI, etc).

Green Light: If the power is on, the connections are secure, the video signal source is on, and the light is still GREEN, then this dictates a problem internally with the monitor; it needs to be returned for repair.

My monitor is not turning on even though it is plugged in (internal power supply)First, try another device in the same outlet to determine if the outlet is working properly.

Is everything firmly plugged in? It is easy for cables to become loose and not firmly connected, especially if you are using a mobile system. Please check to ensure everything is securely plugged in.

Amber Light: The amber light indicates the monitor is receiving power but is not receiving the video signal being fed from the signal source (camera, computer, etc). This may also signify that the monitor is currently set to the wrong video input; you may need to press the “Auto/Switch” button to select the appropriate input (VGA, HDMI, etc).

Green Light: If the power is on, the connections are secure, the video signal source is on, and the light is still GREEN, then this dictates a problem internally with the monitor; it needs to be returned for repair.

My monitor screen is completely black, even though it is powered onIs everything firmly plugged in? A loss of video signal will cause the monitor to go black and then turn off entirely. It is easy for cables to become loose and not firmly connected, especially if you are using a mobile system. Please check to make sure everything is securely plugged in.

Your monitor possibly has TRU-Vu’s Dim-To-Black feature which allows you to control the screen’s brightness and contrast by pressing the arrow keys in the menu. The reason it has gone completely black could be because the dim-to-black was turned all the way down. Press the arrow up to the right to raise the brightness again. If this does nothing, try pressing the left arrow keys.

Why does my monitor keep entering sleep mode when I turn it on?The primary cause is usually that the monitor is not receiving a video signal from the signal source (camera, computer, etc). The monitor will automatically enter sleep mode if it cannot detect a video signal.

Example: If you have the computer plugged into a monitor and the computer is off, when you power the monitor on, it will turn on for a few seconds, then automatically switch into sleep mode and turn off. Once you turn the computer on, the monitor will automatically recognize the signal source and power on.

The monitor will automatically switch into sleep mode if your video signal source (camera, computer, etc) is off or disconnected. Make sure your source is on and firmly connected.

If the LED on the monitor is amber, this means the monitor is receiving power but not receiving a video signal from your source. Ensure the monitor is set to the correct input and try swapping out sources to determine if that is the root of the problem.

If possible, try using a different monitor with the same cables and source. If the new monitor works, then there is an issue with the original monitor. Contact us for a repair RMA.

Why are there black bars and/or squeezing (banding) with my monitor?If there are black bars around your signal and/or a “squeezing” effect, this means that the aspect ratio of your monitor and the incoming video signal do not match.

Make sure the monitor’s picture size setting is set to the factory default, not zoom, fit or stretch. For optimal picture quality without distortion, black bars or squeezing, it is always best to match the aspect ratio of your video signal with the aspect ratio of the monitor.

How do I know if my monitor is really showing true 4K video?Make sure that that the signal you are sending is 4K resolution (3840x2160). You can test this by pressing the monitor’s Menu button. The monitor’s Menu screen will display the incoming video resolution and timing in the top-right corner of the screen.

My touch screen is not working.All touch panels must be connected to a computer via USB or RS232 cable. This allows the touch panel to communicate with the computer.

If you recently downloaded a new touch panel driver, you must also delete the old driver and reboot your computer. Make sure you have deleted any old touch panel drivers and then restart your computer.

My touch screen is not registering correctlyAll non-HID compliant touch panels will need to be calibrated during the initial start-up and may need recalibrating at some other point in the future. This is accomplished via the touch panel software installed on your computer. For a detailed walk through, please contact us.

Certain touch panels are susceptible to issues due to grease/dust/water and therefore may need added care. If this is a constant problem, please contact us for further assistance.

The buttons on my monitor are lockedKeylock is a safety feature offered by TRU-Vu to prevent unauthorized personnel from changing the desired monitor settings. We do not publish the lock codes for public knowledge; please contact us for the unlock codes.

I increased the Brightness setting on my Sunlight Readable monitor, and now the image is washed outIf you would like to achieve a brighter image than the default settings on a TRU-Vu SRM-Series Sunlight Readable monitor, we recommend keeping the Brightness setting at the default setting (you may need to perform a factory reset/recall if you’ve already adjusted the Brightness), and then increase the contrast.

The speakers are not very loud on my monitorTRU-Vu speakers are provided for signals and alerts; these are not intended for voice or music. If quality of sound is a major concern, we advise using external speakers.

My monitor is displaying a message saying “Sync Out of Range”If you are seeing this on your monitor, it means you are sending a video resolution to your monitor that is higher than your monitor’s native resolution.

Please review the TRU-Vu data sheet to determine your monitor’s video resolution and set your incoming video source to the same resolution as listed on the monitor data sheet.

Prepare the screen by turning it off and wait until it is cool to the touch. Cleaning warm or hot screens makes it more difficult to clean and can even damage the screen.

It is always recommended to spray the microfiber cloth first, then clean the screen with the moistened cloth. Do NOT spray the monitor screen directly.

For heavier duty cleaning, create a solution of 80% alcohol mixed with 20% water and use the damp, not wet, cloth to clean the screen and panel surface.

I need to clean my monitor screen (with protective glass)We highly recommend WHOOSH Screen Cleaner. It is 100% natural, non-toxic, and environmentally friendly. You can also use any standard glass cleaner.

Just like televisions, laptop displays start to flicker too after a few years. You may sometimes also notice the display turning blank even when the laptop is on. Alternatively, you might find some white lines running down the display.

This doesn’t necessarily mean that there is an issue with the motherboard. If your laptop keeps turning off every few minutes and doesn’t turn on, there is a high chance that the AC adapter has malfunctioned. You can get help from a professional to confirm and get the AC adapter replaced, if required. There is also a possibility that the DC power jack may have broken. A DC connector (or DC plug) is an electrical connector that supplies steady power to the device.

If the DC jack has broken, you can try adjusting the plug’s angle in its jack. If you see some lights turning on but the device is still not booting, it’s time to replace the DC jack. If that doesn’t help, it’s a clear indication of a motherboard-related issue. You can either get the motherboard repaired or replaced by the brand service center. Getting the motherboard repaired could cost you anywhere up to Rs 10,000, whereas the cost of replacing the motherboard can go anywhere up to Rs 25,000.

If you ever notice multi-coloured or single-coloured vertical lines on your laptop screen, it may be a result of a hardware failure or due to damage to the screen. To try fixing it yourself, first unplug your laptop, hold the power button for 30 seconds and restart the laptop. If you continue to see coloured lines, the issue is probably with the LCD screen, which will need to be replaced from the brand’s service center. To be sure about the LCD screen problem, try connecting your laptop to another monitor and see if the issue persists. If it does, the issue is certainly in the LCD panel.

On turning on the laptop when you see the lights blinking and hear the fan working but if the laptop screen is blank and doesn’t display anything, this is again an indication of a faulty motherboard. The first thing to do is to transfer all the data to another drive to make sure your data is safe. Before going ahead and getting the motherboard repaired or replaced, you could try performing a hard reset (also known as a factory reset), which can mostly help in resolving the blank display issue.

Firstly, check if your laptop’s brightness level is set to maximum. If the display is still dim, try restarting the device. This could just be a system error that can be resolved by restarting the device. Also, check if the AC adapter cord is loose and firmly connect it to the outlet and laptop. If the issue still persists, it is mostly due to a failure of the LCD. Behind the LCD, there is an inverter board and backlight bulb which control the picture.

The inverter board converts the low voltage your laptop uses, into higher voltage required by the long bulb that lights up the LCD screen. If the inverter board or bulb fail, you will experience the problem of a dimmed display. Even if one of these two components fail, the screen will need to be replaced, unless the service center can help by just replacing the bulb. We wouldn’t recommend you try resolving it yourself, as this is more complex and you could end up damaging the circuit board and the backlight lamp. So, it’s best to leave this job to an expert.

Laptops are fragile and can easily break, especially with more and more thinner and lighter models being launched now. Some of the most common ways how a laptop is damaged include: when it accidentally falls and the screen cracks, when it’s held at an awkward angle or if you unknowingly placed something heavy on the laptop. Remember, a cracked laptop screen can affect the overall functioning of the device in some cases.

Since brands do not cover the laptop screen, it’s best to get your device covered with a protection plan in advance. Screen replacements are expensive and can cost you anywhere up to Rs. 15,000 but if you have the

Need an expert to take a look at your laptop? Book Onsitego’s on-demand repair service. Besides taking care of common laptop problems like battery draining or laptop hanging, we can help with issues like setting up the operating system or removing malware/virus from your device. Our service engineers are qualified and use only good-quality spare parts while repairing. The best part is that our service is backed with a 90-day post-service warranty.

Follow Onsitego on Facebook, Instagram, Twitter, and YouTube to get the latest news, reviews, maintenance tips, and videos about your favourite gadgets and appliances.

If you experience that abnormal display problem of your PC (such as broken / blurred / sparkling image etc.), please refer to the following troubleshooting steps.

To provide you more detailed instruction, you can also click ASUS Youtube video link below to know more about troubleshooting for Main (Internal) Display

While you have display problems with main screen, you can check the display is a hardware or software issue by entering the BIOS configuration. Here you can learn more about How to enter the BIOS configuration.

If the display problem is still existing in the BIOS configuration, which means the screen hardware may be defective, and we recommend you visit the ASUS authorized repair center to test your laptop.

Note: Although some vendors of graphics issued the latter version but they might not pass its compatibility test. We suggest that you use the same driver as the one on the ASUS support site.

Please uninstall the present graphics driver first, refer to Appendices: How to uninstall driver. After the uninstallation is completed, please install the latest driver which is published on the ASUS support site, here you can learn more about How to search and download drivers.

If you haven"t updated the graphics driver before dysfunction happens, we suggest that you check if there is any new graphics driver on the ASUS support site.

Note: Some models possess both two graphics (integrated & dedicated graphics, such as Intel & NVIDIA) and can view in Device Manager, please confirm they are updated to the latest version, refer to Appendices: How to check the present version of driver.

Note:Only some notebook models have the component cover so that you are able to install a RAM (Random Access Memory) module in the memory module compartment, the reference as below.

Do you have display problems when you execute some specific programs / applications, such as the games or image processing software which occupies more system sources when it"s running?

Please remove all external peripherals, such as external hard drives, printers, memory cards, external ODD (if your computer is with internal ODD, please remove CD/DVDs), dongles, etc.

Note: Please don’t remove the AC adapter for ASUS laptop TP420IA and UX425IA model. (These models need to plug in the AC adapter to do the Hard reset process.)

Re-install the AC adapter and battery, then power on the computer and check whether the problem is resolved or not. If the problem persists, please continue the next troubleshooting step.

Updating software usually helps the system stability and optimization, so we recommend you check and often update to the latest version in your PC. Here you can learn more about:

If the display problem happens recently, and if you have ever created a restore point or there is an automatic system restore existed, try to restore the computer to a point before the problem began to resolve the problem. Here you can learn more about How to use restore point to restore the system.

If the problem persists after all troubleshooting steps are completed. Please backup your personal files, then reset the PC to back to its original configuration. Here you can learn more about:

Or, replace with shorter cable for monitor. Some cables might have problems with signal weakening, especially the VGA (D-SUB) cables with analog signal. Here you can learn more about How to fix Display problem on External monitors.

The screen color temperature might be a little bit different for each panel even if the manufacturing process is the same, so it’s normal. ASUS makes sure the manufactured products to meet the specification, so please feel free to use it.

In addition, you can use Splendid to adjust the display color of your screen, or purchase the PANTONE Validated products to get a more accurate color correction for your experience.

If you experience that the color or color temperature problems on your screen, you are able to adjust the related settings via Splendid. Here you can learn more about The Splendid feature in MyASUS Customization.

A1: It’s a normal Windows situation. If the color setting is set to the light mode on your system, there is a temporary white blinking display after entering the lock screen or resume from sleep mode. Otherwise, there is a temporary blue blinking display if it is a dark color mode.

Note: If your PC is the AMD platform of graphics, please refer to How to uninstall AMD chipset driver, otherwise, please refer to the following steps.

Type and search [Device Manager] in the Windows search bar①, then click[Open]②. (The left-side search illustration below is in Windows 11, and the right-side is Windows 10.)

Type and search [Device Manager] in the Windows search bar①, then click [Open]②. (The left-side search illustration below is in Windows 11, and the right-side is Windows 10.)

Solution 1 ► If any colors (red, green, or blue) are missing, check the video cable to make sure it is properly and securely connected. Loose or broken pins in the cable connector could cause an improper connection.

Apple has determined that some iPhone X displays may experience touch issues due to a component that might fail on the display module. An affected device may exhibit the following:

Choose one of the options below to have your iPhone X serviced. Your iPhone will be examined prior to any service to verify that it is eligible for this program.

If your iPhone X has any damage which impairs the ability to complete the repair, such as a cracked screen, that issue will need to be resolved prior to the service. In some cases, there may be a cost associated with the additional repair.

There are basic checks you can do for issues you may encounter with Square Register. Make sure to walk through the following before going through issue-specific troubleshooting steps:

Make sure your device has the latest software. Software updates typically take around 20 minutes to complete, but may take up to one hour. Square Register will update automatically overnight as long as it is powered on and plugged in.

On Square Register, confirm that you’ve pressed the Charge button to activate the customer display to accept contactless cards and phones. The LED indicators should light up when you tap the Charge button.

If magstripe cards and contactless payments still work, something may have damaged the chip card slot. If you think this is the case, contact Square Support.

Make sure that the display is docked completely and evenly on both sides. There should not be any gap between Register and the customer display and you should hear the latch click on both the left and right sides of the customer display.

See if undocking and connecting the customer display via USB cable works. This can help Square diagnose whether it is an issue with the docked position only.

See if docking the customer display works. This can help us diagnose whether it is an issue with the undocked position only (It is possible that there is an issue with the cable that connects to two devices).

Most display issues, such as a few common ones listed below, are resolved by undocking/docking or unplugging/plugging in the customer display. You can also reboot the system by using the power on the bottom edge of Square Register.

To determine whether there is an issue with the Hub or with the USB hardware accessory (printer, barcode scanner, cash drawer), try connecting a different USB hardware accessory to the Hub.

Toggle Wi-Fi off and on in Settings > Hardware > Network and check to make sure that you see a checkmark next to the network to which you are trying to connect. Confirm that you see the Wi-Fi status indicator on the top right corner of the status bar.

Keep in mind, you won’t be able to connect your Square Register to a captive portal network. A captive portal is a network that requires you to agree to terms or conditions to access the internet connection (these networks are common at coffee shops, airports, and other public internet access points).

Confirm that you have a strong Wi-Fi signal by checking other devices (such as phones, tablets or laptops) on your network near the location of your Square Register. The Wi-Fi status indicator in the upper right corner of the status bar should have 3-4 white bars to indicate a strong signal. Depending on the position of your router, you may need to move your Square Register closer to your router. If it does not, consider contacting your network professional.

Confirm that you can see the Ethernet network status indicator in the top right corner of the status bar. If you don’t see the Ethernet network status indicator, try unplugging and plugging in the cable from the Ethernet port on the Hub and from the router or modem.

If you have a Wi-Fi network available, unplug the Ethernet cable and switch to Wi-Fi in Settings. Make sure to unplug the Ethernet cable since the device will default to using Ethernet connection over Wi-Fi if both are available.

If Offline Mode is enabled in your settings, Square Register will automatically activate Offline Mode if your internet connection is disrupted or lost. If your device goes into Offline Mode without losing a network connection, try the following troubleshooting steps:

On rare occasions, you may need to perform a factory reset. Don’t worry: resetting your device will not erase important account settings like items, transaction histories, customer lists, or team permissions. It will all be there when you sign back in.

It’s also a good idea to send a Diagnostic Report and Support Ledger from your device prior to factory resetting. Diagnostic reports and Support Ledgers contain essential logs that will help us diagnose and resolve issues faster.

Note: Diagnostic reports can take between 2-7 minutes to upload—please ensure you have a strong internet connection and your device is powered on during this time.

If you have taken any offline transactions, be sure to reconnect to the internet and process them before proceeding. Pending offline payments will be permanently lost and the funds won’t be captured when you reset your device.

If you enforce restrictions on what protocols and ports that devices on your network can access, Square devices require the following protocols and their corresponding ports to be allowed through your firewall:

NTP. Note: This is critical for ensuring that the device has the correct time. Connectivity may fail due to certificate validity mismatches if the device time is wrong.

Square devices also rely on access to Amazon Web Services (AWS) and Google Cloud Platform (GCP). AWS IP ranges are published here, and Google is AS15169.

Note: Square devices have an internal firewall and an internal (domain, not IP) whitelist, and perform TLS certificate pinning on all Square endpoints, so you may consider the IP whitelisting on your side redundant depending on your purpose. It could make sense to just ensure Square devices can’t access any internal company IP addresses, and leave the rest of the internet open for Square’s on-device firewall and domain filter.

Merchants should whitelist all MAC addresses that start with the above prefix (ie. devices with MAC addresses following the pattern 2C:D1:41:XX:XX:XX). Alternatively, merchants can whitelist each individual device that shows up with that MAC address prefix (this prefix is owned by Square and should not be used by any other device vendors).

Square devices are compatible with any DNS server sent to the device over DHCP as long as it works. Feel free to use your ISP’s servers, or your favorite public servers (e.g. Level3 at 4.2.2.1/4.2.2.2).

To clean the reader on Square Register, you can use card reader cleaning cards or a folded paper towel. Slide the cleaning card or paper towel through the card reader slot to clear any spills or debris.

If your monitor won’t project to a second screen, check your display adapter and cables. For more info on troubleshooting your external monitor, go to Trouble connecting Surface to a second screen.

If you"re using a Surface Dock: If the Surface device battery is empty, first charge it using the power supply that came with the device for a few minutes before trying to charge with the Surface Dock again.

Note:If you are using Surface Book or Surface Laptop Studio performance models, please remove all accessories and ensure your Surface Dock is connected to the original in-box power supply that came with your Surface Dock.

Note:In some cases, when an audio device like a headset or speaker is connected to the 3.5mm jack, the audio device may not be detected right away. Disconnect the Surface Connect cable, then reconnect it to re-detect audio devices.

Your Surface Dock comes equipped with a standard gigabit ethernet port. To troubleshoot network issues on Surface Dock, see Fix Ethernet connection problems in Windows.

Instrument Sales & Service is here to help if your Chevy Silverado Radio is having display issues or general radio problems like speakers are out. We offer a replacement service for many different years of Chevy Silverado. With over 30 years experience in the automotive business, we can help you fix your factory Chevy Silverado Radio.

If your factory Chevy Silverado radio display isn’t working, it may be because the display is burned out. The most common reason for this is because of a problem with the circuit board. If this is the case, we offer a replacement service for your Chevrolet Silverado 1500 and up.

The radio screen in a Chevy Silverado 1500 vehicle will go out for several reasons – most commonly a blown fuse or maybe if you hit something and knocked a wire loose. It can also be due to a problem with the display itself, or a problem with the circuit board. If you’re screen is not working, we can help figure out what the problem is and get it fixed for you.

Symptoms for this are – no sound when you are in radio mode, static when in any other mode, or no picture on the screen at all. If this describes your Chevy Silverado, please give us a call or bring it by and we’ll take a look at it for you. Or just order a replacement on our website.

The most common problems we see with Chevy Silverado radios are – the screen goes blank, no sound, or static in the speakers. These are all caused by different things, but can be fixed.

Many of the issues we have found are internal or the screen. This will mean you want a professional tech to work on your radio to ensure performance. Also, it’s important to have the right testing equipment to ensure functionality is correct. For this reason, we recommend working with a professional shop like Instrument Sales & Service.

Turn the car on, but don’t start it. Wait about five seconds and then press nine times on the preset buttons one after another, holding it down the whole time.

After about five seconds have elapsed, you should press nine times on the preset buttons one after another and then hold down the power button for about five seconds.

Resetting your radio in a Chevy Silverado may solve your problem of screen issues, but if this does not work, you may have to find a replacement radio for your truck.

You will need to work with a professional company like Instrument Sales & Service or seek a local dealership. They will be able to program your radio which is often called VIN Unlock.

This stereo has a great sound system and easy-to-use features that attract most people and is one of the most popular types of car stereo systems on the market.

After putting your new radio in, you can now reconnect the battery and turn on your radio to test if everything is working properly like steering wheel control, speakers, audio, videos, and GPS.

The first step to address an Acer computer monitor not turning on is to check all the connections and power to the monitor and PC. Check the power strip you are using by plugging the acer monitor power cord directly into the wall. Make sure the outlet you are using is not powered by a switch.

Reset the power to the monitor by removing all power from it. Then press and hold the power button for 30 seconds. Connect the monitor to a power source and turn it on.

Some monitors may have an internal battery. If so there will be a battery pinhole near the power port. While the monitor is unplugged, you can reset this battery.

If the power is working for other devices, but the Acer monitor is still not functioning correctly, it can signal that there could be an issue with the power cable. If this is the case, the power cord is easily replaceable.

Test The Adaptor Cables Test your signal cables to ensure they are well connected. They can come loose from being moved or bumped. Check to make sure the pins are not bent and there are no frayed wires.

If you have a similar cable in the house, you can replace the cable to see if a new cable helps. These cables range from VGA, DVI, DisplayPort and HDMI. They are also fairly inexpensive to replace.

Depending on the Asus monitor model you are using, if you press the OSD button and see a menu that displays, you can reset the monitor settings. Do this by pressing and holding the ‘menu’ key.

Missing or outdated drivers can give your monitor issues as well. If you have an integrated graphics output, you can plug into that output and update your video card’s drivers.

If you’re on a laptop, you can use your native screen and updating your graphics drivers as well as your chipset drivers. If you are looking to save time, Give Driver Support | ONE a try today!.

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Some Televisions also have an option to "Soft Power Cycle" in the menu. To access this press the menu button and choose System > Reset & Admin > Soft Power Cycle.

Step 3: Check to see if the issue happens on another device, or an app. You can also check the TV"s menu by pressing the "Menu" button on your VIZIO remote.

If your TV has a display issue, the TV will usually have the issue on all content. You"ll see the same problem when watching your cable box and your Blu-ray player. You"ll also generally see the problem affect the menu. If the issue only happens when watching 1 device and can"t be seen when looking at menu, you may want to contact the manufacturer of your video device for assistance.

Press the menu button on your VIZIO remote, and choose System > Reset & Admin > Reset to Factory Settings. In some models it may be under the "Help"option instead of "System"

To find the app that causes issues, uninstall recently downloaded apps one by one. After you remove the app that causes the problem, you can reinstall the other apps you removed.

Slowly drag your finger to the bottom right corner without lifting. Try to move your finger slowly enough that you can count to 10 before reaching the opposite corner of the screen.

IMPORTANT: A factory data reset will remove all data from your phone. While any data stored in your Google Account will be restored, all apps and their associated data will be uninstalled. Before you perform a factory data reset, we recommend backing up your phone.

Once you have found the correct part number, see HP Consumer Notebook PCs - Ordering HP certified replacement parts. Use the instructions in this document to order a replacement part.

HP recommends that you only order parts from an authorized HP repair parts dealer. Parts ordered from third-party companies might not perform as expected and might cause additional

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