iphone 4 lcd screen for sale

iPhones replacement parts are available for purchase and installation, and oftentimes, you can even install them yourself. You can order cell phone LCD screens for iPhone 4 phones and learn how the assembly is done in order to give your Apple iPhone a much-needed renovation.

LCD Screen: LCD stands for liquid crystal display, and it is used to create the images that you see on your iPhone. If the screen is still emitting light but appears to be solid black or white, you may need to order a replacement LCD screen.

Digitizer: The thin piece of glass that is attached to the LCD is called a digitizer. This is basically the part of the iPhone 4 that gives it touchscreen capabilities.

Glass: This is the protective layer that covers the LCD and digitizer. This is the piece of the iPhone 4 that is the most likely to break, but the touchscreen on the iPhone will still be functional if the LCD and digitizer remain unharmed.

When it is time to order a replacement for your iPhone, searching for the piece by the iPhone"s model will allow you to be sure that you are getting the correct size if you are doing the assembly yourself. Some models such as the iPhone 4 and iPhone 4s share the same-sized screen, so the screens can be used interchangeably. The iPhone 4, iPhone 4s, and any other Apple device with a screen that is 3.5 inches can be used this way.

After you have purchased the replacement LCD screen with the digitizer and glass for the touchscreen, you will have to turn off the iPhone 4 and begin to take it apart by removing all of the screws.

Your iPhone 4 will have more screws beneath its battery. Be sure to remove the screws from under the battery before attempting to remove the original screen.

Once the screen is in place, you will need to reassemble the phone and place all of the necessary screws in the correct places under the battery and in the exterior screw holes.

iphone 4 screen provide the touch interface in smartphones, which are vital for them to function. Alibaba.com stocks a stunning range of high-tech iphone 4 screen with vibrant color depictions. Truly crystal-clear displays of iphone 4 screen are available covering various brands and models such as the Samsung Galaxy Edge 2, OnePlus 7T, Samsung Galaxy C5, and many more.

iphone 4 screen are the most commonly used displays, as they produce great image quality while consuming low power. Rather than emitting light directly, they use back lights or reflectors to produce images, which allows for easy readability even under direct sunlight. iphone 4 screen are energy-efficient, and are comparatively safer to dispose of, than CRTs. iphone 4 screen are much more efficient when it comes to usage in battery-powered electronic equipment, due to their minimal power consumption.

Some other advantages of iphone 4 screen over the CRT counterparts are - sharper images, little to no heat emission, unaffected by magnetic fields, narrow frame borders, and extreme compactness, which make them very thin and light. Some types of iphone 4 screen are transmissive, reflective, and transflective displays. Transmissive displays provide better image quality in the presence of low or medium-light, while reflective displays work best in the presence of bright light. The third type of iphone 4 screen, transflective, combine the best features of both the other types and provide a well-balanced display.

Whether as an individual purchaser, supplier or wholesaler, browse for an extensive spectrum of iphone 4 screen at Alibaba.com if you don"t want to stretch a dollar yet find the best fit.

iPhone 4 owns 24% thinner frame than the iPhone 3GS,and the iPhone 4 adopts the retina display which features 3.5 inches and 960x640 pixels screen. Compared with iPhone 3GS, the 326 pixels retina display of iPhone 4 is four times as many as the iPhone 3GS, and iPhone 4 adopts 800:1 contrast ratio which is also greater than the iPhone 3GS.

Apple iPhone 4 LCD and Digitizer Assembly with Frame(AT&T) includes LCD screen, digitizer touch panel, digitizer frame, camera gasket, foam gaskets for display and digitizer, receiver nets and so on. Compared with Apple iPhone 4 LCD and Digitizer Assembly with Frame(Verizon), the slots of digitizer frame of iPhone 4 LCD Screen and Digitizer Assembly is asymmetric, while the Verizon version’s slots are symmetric.

Currently there is a couple of source of iPhone 4 LCD Screen Assembly in the market, such as disassembled from brand new, assembled with original LCD screen and touch panel by small factories, and assembled with original LCD and aftermarket touch panel. ETrade Supply is selling the OEM brand new Apple iPhone 4 LCD and Digitizer Assembly with Frame. We will have at least twice strict QC check on both cosmetic look and functionality in order to make sure our products are 100% good.

ETrade Supplyhas established the ISO9001 certified QC procedure. We also invent our own super-protective packaging method to give the maximum protection to the Apple iPhone 4 Digitizer Assembly. Apart from this part, ETrade Supply also supplies Apple iPhone 4(at&t/GSM)replacement parts.

The flex cable ribbons of LCD screen and touch panel should be kept well. Any scratches or bend on the flex ribbons may lead to the dysfunction of display or digitizer.

Step 1. Please check if the Apple iPhone 4 LCD and Digitizer Assembly with Frame is damage when you receive it. We are 100% percent sure that our package is very good. But damages caused due to transportation are hard to avoid. So please check before signing for it.

Step 3. If there is no problem on the function then you can start installation. Please be careful of the flex ribbons. Do not bend or squeeze them. ETS cannot be responsible for any possible damage caused by incorrect installation. Please try to handle the repair or replacement work in dry environment without direct sunlight (the temperature should be kept between -20 to +70). Also, please keep the OEM Apple iPhone 4 LCD and Digitizer Assembly with Frame away from acid, alkali or other corrosive materials.

Got broken display in your Apple iPhone 4? Buy the complete LCD with Touch Screen for Apple iPhone 4 - White and replace the broken, cracked or scratched screen in your handset. 100% Perfect fit with high manufacturing quality. With least technical know how required, it is easiest to replace display for your handset.

The replacement combo lcd with touch for Apple iPhone 4 comes with manufacturing defect warranty and the shipping is done in secured packing to make sure you get the product in perfect shape.

Have you accidentally dropped your iPhone 4 and realized that your screen has been broken? We all know how it feels, but don"t worry. This screen assembly for iPhone 4 includes both the touch screen and LCD screen. If your iPhone 4 has been dropped or damaged for any reason, this is the replacement screen for you! This brand new assembly includes both screens, allowing you to repair damages like broken LCD displays, discoloration, dead pixels, scratched touch screen, and much more! Use this brand new replacement screen assembly to resolve nearly any display or cosmetic issues your iPhone 4 may have!

The display has rounded corners that follow a beautiful curved design, and these corners are within a standard rectangle. When measured as a standard rectangular shape, the screen is 5.42 inches (iPhone 13 mini, iPhone 12 mini), 5.85 inches (iPhone 11 Pro, iPhone XS, iPhone X), 6.06 inches (iPhone 14, iPhone 13 Pro, iPhone 13, iPhone 12 Pro, iPhone 12, iPhone 11, iPhone XR), 6.12 inches (iPhone 14 Pro), 6.46 inches (iPhone 11 Pro Max, iPhone XS Max), 6.68 inches (iPhone 14 Plus, iPhone 13 Pro Max, iPhone 12 Pro Max), or 6.69 inches (iPhone 14 Pro Max) diagonally. Actual viewable area is less.

Service is included for free for two years with the activation of any iPhone 14 model. Connection and response times vary based on location, site conditions, and other factors. See apple.com/iphone-14 or apple.com/iphone-14-pro for more information.

All battery claims depend on network configuration and many other factors; actual results will vary. Battery has limited recharge cycles and may eventually need to be replaced. Battery life and charge cycles vary by use and settings. See apple.com/batteries and apple.com/iphone/battery.html for more information.

Data plan required. 5G, Gigabit LTE, LTE, VoLTE, and Wi-Fi calling are available in select markets and through select carriers. Speeds are based on theoretical throughput and vary based on site conditions and carrier. For details on 5G and LTE support, contact your carrier and see apple.com/iphone/cellular.

iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XS, iPhone XS Max, iPhone XR, iPhone SE (2nd generation), iPhone SE (3rd generation), iPhone 11 Pro, iPhone 11 Pro Max, iPhone 11, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12, iPhone 12 mini, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13, iPhone 13 mini, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 14, and iPhone 14 Plus are splash, water, and dust resistant and were tested under controlled laboratory conditions; iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12, iPhone 12 mini, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13, iPhone 13 mini, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 14, and iPhone 14 Plus have a rating of IP68 under IEC standard 60529 (maximum depth of 6 meters up to 30 minutes); iPhone 11 Pro and iPhone 11 Pro Max have a rating of IP68 under IEC standard 60529 (maximum depth of 4 meters up to 30 minutes); iPhone XS, iPhone XS Max, and iPhone 11 have a rating of IP68 under IEC standard 60529 (maximum depth of 2 meters up to 30 minutes); and iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XR, iPhone SE (2nd generation), and iPhone SE (3rd generation) have a rating of IP67 under IEC standard 60529 (maximum depth of 1 meter up to 30 minutes). Splash, water, and dust resistance are not permanent conditions. Resistance might decrease as a result of normal wear. Do not attempt to charge a wet iPhone; refer to the user guide for cleaning and drying instructions. Liquid damage not covered under warranty.

Available space is less and varies due to many factors. A standard configuration uses approximately 12GB to 17GB of space, including iOS 16 with its latest features and Apple apps that can be deleted. Apple apps that can be deleted use about 4.5GB of space, and you can download them back from the App Store. Storage capacity subject to change based on software version, settings, and iPhone model.

To access and use all the features of Apple Card, you must add Apple Card to Wallet on an iPhone or iPad with the latest version of iOS or iPadOS. Update to the latest version by going to Settings > General > Software Update. Tap Download and Install.

Testing conducted by Apple in August 2017 using preproduction iPhone X, iPhone 8, and iPhone 8 Plus units and software, and in August 2018 using preproduction iPhone XS, iPhone XS Max, and iPhone XR units and software, with accessory Apple USB-C Power Adapters (18W Model A1720, 29W Model A1540, 30W Model A1882, 61W Model A1718, 87W Model A1719). Testing conducted by Apple in August 2019 using preproduction iPhone 11, iPhone 11 Pro, and iPhone 11 Pro Max units and software and accessory Apple USB-C Power Adapters (18W Model A1720, 29W Model A1540, 30W Model A1882, 61W Model A1947, and 87W Model A1719). Testing conducted by Apple in February 2020 using preproduction iPhone SE (2nd generation) units and software and accessory Apple USB-C Power Adapters (18W Model A1720 and 30W Model A1882). Testing conducted by Apple in September 2020 using preproduction iPhone 12 mini, iPhone 12, iPhone 12 Pro, and iPhone 12 Pro Max units and software and accessory Apple USB-C Power Adapter (20W Model A2305). Testing conducted by Apple in August 2021 using preproduction iPhone 13 mini, iPhone 13, iPhone 13 Pro, and iPhone 13 Pro Max units and software and accessory Apple USB-C Power Adapter (20W Model A2305). Testing conducted by Apple in February 2022 using preproduction iPhone SE (3rd generation) units and software and accessory Apple USB-C Power Adapter (20W Model A2305). Testing conducted by Apple in August 2022 using preproduction iPhone 14, iPhone 14 Plus, iPhone 14 Pro, and iPhone 14 Pro Max units and software and accessory Apple USB-C Power Adapter (20W Model A2305). Fast-charge testing conducted with drained iPhone units. Charge time varies with settings and environmental factors; actual results will vary.

iPhone 14 models are activated with an eSIM and do not support a physical SIM. Use of eSIM requires a wireless service plan (which may include restrictions on switching service providers and roaming, even after contract expiration). Not all carriers support eSIM. Use of eSIM in iPhone may be disabled when purchased from some carriers. See your carrier for details. To learn more, visit apple.com/esim.

The sensor assembly on the back of the display is paired to your iPhone"s logic board and must be transferred from your old display to your new one. The sensor assembly includes the flood illuminator, a part of the Face ID security feature. If it is damaged or replaced, Face ID will cease to function.

First releasedGSM model (black): June 24, 2010; 12 years ago(June 24, 2010)CDMA model (black): February 10, 2011; 11 years ago(February 10, 2011)GSM and CDMA models (white): April 28, 2011; 11 years ago(April 28, 2011)

The iPhone 4 is a smartphone that was designed and marketed by Apple Inc. It is the fourth generation of the iPhone lineup, succeeding the iPhone 3GS and preceding the 4S. Following a number of notable leaks, the iPhone 4 was first unveiled on June 7, 2010, at Apple"s Worldwide Developers Conference in San Francisco,United States, United Kingdom, France, Germany, and Japan. The iPhone 4 introduced a new hardware design to the iPhone family, which Apple"s CEO Steve Jobs touted as the thinnest smartphone in the world at the time; it consisted of a stainless steel frame which doubled as an antenna, with internal components situated between two panels of aluminosilicate glass.Retina Display" (with a pixel density of 326 pixels per inch), while maintaining the same physical size and aspect ratio as its precursors, Apple"s A4 system-on-chip, along with iOS 4—which notably introduced multitasking functionality and app folders. It was the first iPhone at the time to include a front-facing camera, which made possible Apple"s new FaceTime video chat service, and the first to be released in a version for CDMA networks, ending AT&T"s period as the exclusive carrier of iPhone products in the United States.

The iPhone 4 received a largely positive reception, with critics praising its revamped design and more powerful hardware, in comparison to previous models. While it was a market success (with over 600,000 pre-orders within 24 hours), the release of the iPhone 4 was plagued by highly publicized reports concerning abnormalities in its new antenna design that caused the device to lose its cellular signal if held in a certain way. Most direct contact with the phone"s outer edge would cause a significant decrease in signal strength. Apple released iOS 4.0.1 to try to fix these issues, but were unsuccessful.

The iPhone 4 spent the longest time as Apple"s flagship iPhone model at fifteen months. Although the succeeding 4S was announced in October 2011, the 4 continued to be sold as a midrange model until September 2012, and thereafter as the entry-level offering in Apple"s lineup until September 2013 with the announcement of the iPhone 5S/iPhone 5C. The iPhone 4 had one of the longest lifespans of any iPhone ever produced, spanning close to four years and available in some developing countries until early 2015.

Before the official unveiling of the iPhone 4 on June 7, 2010, two prototypes were brought to the attention of the media, breaching Apple"s normally secretive development process. Many of the speculations regarding technical specifications proved accurate.

On April 19, 2010, gadget website Gizmodo reported that they had purchased an iPhone prototype for $5000, and furthermore, had conducted a product teardown of the device. The prototype was reported to have been lost by an Apple employee, Gray Powell, in Redwood City, California.

On April 23, officers from the Rapid Enforcement Allied Computer Team (REACT) task force of the California HTTAP Program raided the home of Jason Chen, the Gizmodo editor responsible for reviewing the prototype, seizing all of his computers and hard drives.Electronic Frontier Foundation criticized the raid as violating journalist source protection laws that forbid the seizure of journalist computers, as well as the suspicion that Apple had used its influence as a member of the steering committee, which is charged with direction and oversight of the California REACT task force to push police into action in a way that would not normally be conducted for this type of incident. Apple had already received the iPhone prototype before the raid when it was returned by Gizmodo.District Attorney stated that the investigation was suspended, and discontinued searching through the Gizmodo editor"s belongings as they determine whether the shield laws are applicable, and cautioned that no charges have been issued at this point.

Pictures and video of a second prototype were published on a Vietnamese website, Taoviet, on May 12, 2010.DigiTimes reported that the screen resolution of the new phone was 960-by-640, which was confirmed by Apple at the iPhone 4"s official announcement.

The iPhone 4 was available for pre-order on June 15, 2010.Apple Stores which crashed due to the surge in traffic.AT&T and SoftBank, Apple"s exclusive partners in the United States and Japan respectively, who suspended advance sales of the iPhone 4 as demand threatened to exceed supply.

Apple and its partner carriers received 600,000 pre-orders for the iPhone 4 in the first 24 hours, the largest number of pre-orders Apple had received in a single day for any device up to that point.UTC, all iPhone 4 pre-order suppliers had sold out.

The iPhone 4 was also released through Orange in Tunisia and was available in eight cities at the launch.KT on September 10. In Israel, it was released, too, on September 24, through Cellcom, Pelephone and Orange. It was launched in Thailand on September 23 by AIS, DTAC and True Move, and in Malaysia on September 26 in Kuala Lumpur, and nationwide on September 27 according to the website of Maxis.

The iPhone 4 was released in South Africa on September 22 on the Vodacom and MTN networks, in very limited quantities.Hanoi, Ho Chi Minh City and Da Nang, and then all over the country by the end of October.

On January 11, 2011, Verizon Wireless announced during a media event that it had reached an agreement with Apple and would begin selling a CDMA iPhone 4 in the United States, ending Apple"s exclusivity agreement with AT&T. The Verizon iPhone went on sale on February 10 and pre orders began on February 3.hotspot, with up to five devices connecting at one time. The February 3, 2011, presale of the iPhone 4 broke Verizon"s first day sales records for a single device.

On June 24, 2010, Apple stated that the white iPhone 4 models were proving more "challenging to manufacture" than expected, and initially pushed the release date back to the second half of July.

During Apple"s official unveiling of the iPhone 4S on October 4, 2011, it was announced that Sprint would begin carrying the reconfigured CDMA iPhone 4 and the iPhone 4S in the US on October 14.

In September 2013, after the release of the iPhone 5S and iPhone 5C, Apple stopped selling the iPhone 4 in most of their stores as well as on their website. It was replaced by the 8 GB iPhone 4S.

The display of the iPhone 4 was manufactured by LG under an exclusive contract with Apple. It features an LED backlit TFT LCD capacitive touchscreen with a pixel density of 326 pixels per inch (ppi) on a 3.5 in (8.9 cm) (diagonally measured), 960×640 display. Each pixel is 78 micrometers in width. The display has a contrast ratio of 800:1. The screen was marketed by Apple as the "Retina display", based on the assertion that a display of approximately 300 ppi at a distance of 305 millimetres (12 in) from one"s eye, or 57 arcseconds per pixelretina can perceive.

This claim was widely disputed. Raymond Soneira, president of DisplayMate Technologies, said in an interview with the Wired magazine, that his claims by Jobs are something of an exaggeration: "It is reasonably close to being a perfect display, but Steve pushed it a little too far". Soneira stated that the resolution of the human retina is higher than claimed by Apple, working out to 477 PPI at 12 inches (305 mm) from the eyes, or 36 arcseconds per pixel.

However, Phil Plait, author of NASA regarding the camera on the Hubble Space Telescope, responded to the criticism by stating that "if you have [better than 20/20] eyesight, then at one foot away the iPhone 4"s pixels are resolved. The picture will look pixellated. If you have average eyesight, the picture will look just fine".

The iPhone 4 is the first iPhone model to have two cameras. The LED flash for the rear-facing camera (top) and the forward-facing camera (bottom, left of the speaker) are not present in older models.

The iPhone 4 features an additional front-facing VGA camera, and a backside-illuminated 5 megapixel rear-facing camera with a 3.85 mm f/2.8 lens[1] and an LED flash. The rear-facing 5-megapixel camera is capable of recording HD video in 720p at 30 frames per second. Both cameras make use of the tap to focus feature, part of iOS 4, for photo and video recording.digital zoom.

In contrast to Steve Jobs" announcement at WWDC 2010, recent Federal Communications Commission documentation showed that, in fact, the iPhone 4 contains a penta-band 3G UMTS antenna, not a quad-band 3G UMTS radio, as advertised by Apple. According to the FCC documentation filed by Apple, the radio inside the iPhone 4 supports 800, 850, 900, 1,900, and 2,100 MHz. The 800 MHz frequency, which is most commonly used in Japanese mobile phones, is not advertised as being supported by Apple.Skyworks SolutionsInfineon for GSM version.

The iPhone 4 is the first generation of iPhone to have a second microphone used for noise cancellation. It is located on the top of the unit near the headphone jack; the main microphone is on the bottom left.

The iPhone 4 introduces a gyroscopic sensor that detects 3-axis angular acceleration around the X, Y, and Z axes, enabling precise calculation of yaw, pitch, and roll. The gyroscope complements the accelerometer, a sensor that has been present since the original iPhone, which detects the device"s acceleration, shake, vibration shock, or fall by detecting linear acceleration along with one of three axes (X, Y, and Z). The combined data from the accelerometer and the gyroscope provides detailed and precise information about the device"s 6-axis movement in space. The 3 axes of the gyroscope combined with the 3 axes of the accelerometer enable the device to recognize approximately how far, fast, and in which direction it has moved in space.

The iPhone 4 is powered by the Apple A4 chip, which was designed by IntrinsitySamsung.system-on-a-chip is composed of an ARM Cortex-A8 CPU integrated with a PowerVR SGX535 GPU.first-generation iPad (released in 2010), where it was clocked at its rated speed of 1 GHz. The Apple A4 was the first ever CPU designed by Apple. The clock speed in the iPhone 4 was never disclosed. All prior models of the iPhone had underclocked the CPU, which typically extends battery life and lowers heat dissipation.

The iPhone 4 has 512 MB of DRAM. The additional DRAM supports increased performance and multi-tasking.flash memory, 8, 16 or 32 GB, and not on the SIM. Unlike prior generations, the storage capacity is not printed on the back of the unit.

The iPhone 4 uses a micro-SIM card on iPhone 4 devices running on a GSM network, which is positioned in an ejectable tray, located on the right side of the device. On a CDMA network, however, the phone connects to the network using an ESN. All prior models have used regular mini-SIM cards. Depending on the operator, micro-SIM cards may not be available for all networks globally. As a technical workaround, it is possible to trim a mini-SIM card with a knife or scissors so that it fits into the micro-SIM tray.

The iPhone 4 features a redesigned structure, designed by Jony Ive, a design that would later be reused and adapted for the iPhone 4S, 5, 5S and first-generation iPhone SE. Most notably, the bulges of the back panel as well as the band between the front and back are gone and have been replaced with flattened surfaces. The redesign reflects the utilitarianism and uniformity of existing Apple products, such as the iPad and the iMac. The overall dimensions of the iPhone 4 have been reduced from their predecessor.

It is 115 millimetres (4.5 in) high, 58.6 millimetres (2.31 in) wide, and 9.4 millimetres (0.37 in) deep, compared to the iPhone 3GS, which is 116 millimetres (4.6 in) high, 62 millimetres (2.4 in) wide, and 12 millimetres (0.47 in) deep; making the iPhone 4 24% thinner than its predecessor, the iPhone 3GS. Steve Jobs claimed it to be "the thinnest smartphone on the planet."

The iPhone 4 is structured around a stainless steel frame that wraps around the edge of the phone, acting both as the primary structure for the device and as the iPhone 4"s antennas. This metal band features two slits on the GSM version of the phone, one at the lower left, and one at the top (and a fake slit along the lower right, to cosmetically mirror the one at the lower left) that divide the band into two antenna sections: the left section of the band serves as the Bluetooth, Wi-Fi, and GPS antenna, and the right and lower sections of the band act as the antenna for GSM and UMTS connectivity.

The iPhone 4 shipped with iOS 4, which was the newest version of Apple"s iOS mobile operating system at the time. iOS 4 introduced a multitasking system, allowing apps to remain "suspended" in memory, perform certain operations in the background, and allowing users to switch between apps using an on-screen menu.FaceTime, which allows users to perform video calls between other iPhone, iPad, iPod Touch, and OS X users.

The iPhone 4 supports up to iOS 7, released in September 2013. Due to the relatively aged hardware of the iPhone 4, certain features available on newer iPhone models are not available on the device; as of iOS 7, they include Siri, 3D maps and turn-by-turn navigation, AirDrop, AirPlay mirroring, live camera filters, panorama mode and certain visual effects introduced by iOS 7, such as the blurring of translucent interface elements, the parallax effect on the home screen, and live wallpapers.

Apple released a plastic and rubber case called the Bumper to protect the edges of the phone. The case, which also provided some screen protection, included buttons and holes that enabled switch and connector access.

Apple updated the bumper with a wider volume switch hole with the release of the iPhone 4 for CDMA networks. The updated bumper is also compatible with iPhone 4S, the next-generation iPhone that has the same exterior design and measurements as the CDMA model of the iPhone 4, but with a SIM card slot as well.

CNET reacted to the announcement by explaining how it believes that iMovie for iOS was the "most exciting part of this year"s WWDC Keynote". The article noted how the iPhone 4, unlike current cameras, can record HD content and then edit it from the same device, labeling it a "true mobile editing suite".

Reviews of the iPhone 4 were largely positive. Walt Mossberg of Engadget named it the "best smartphone on the market" in June 2010.CNET gave the iPhone 4 a rating of 8.6 out of 10, one of the highest ratings it had given any smartphone.TechRadar gave the device 4.5/5 stars.

Some users reported a yellow discoloration of the screen that disappeared after several days, which was attributed to the glass lamination glue that was used. It did not have time to dry fully before the unit reached consumers due to the speed of manufacturing.white balance were also discovered, particularly when using the flash.

Shortly after the iPhone 4 was launched, some consumers reported that signal strength of the phone was reduced when touching the lower left edge of the phone, bridging one of the two locations which separates the two antennas, resulting in dropped calls in some areas with lower signal reception.

As a consequence of this problem, it was reported on July 2, 2010 that several iPhone 4 users were planning on suing Apple and AT&T for fraud by concealment, negligence, intentional misrepresentation and defective design. The legal challenge was started by a law firm, who set up a website to recruit disenchanted iPhone 4 buyers for a lawsuit against Apple.

Apple explained how the formula it used to calculate the number of bars to display was "totally wrong". Apple promised to correct the issue and release a software update within a few weeks that would address the "mistake", which had been present since the original iPhone.

On July 16, 2010, at a press conference which included a private tour of Apple"s antenna design lab for journalists,Steve Jobs announced that Apple would provide all iPhone 4 owners with a free case to help solve the antenna issue and a refund to those users who had already purchased a Bumper. The free case offer would be valid until September 30, 2010, when Apple would re-evaluate the situation.AppleCare which showed that only 0.55 percent of all iPhone 4 users have complained to the company about the issue, while the number of phones returned to Apple was 1.7 percent – 4.3 percentage points less than the number of iPhone 3GS models that were returned in the first month of the phone"s launch.

Despite the negative media attention regarding the antenna issues, 72% of iPhone 4 users say that they are "very satisfied" with their iPhone 4 according to an August 2010 survey by ChangeWave Research.

In 2011, two iPhone 4 units equipped with a special application were taken to the International Space Station aboard the Space Shuttle on the STS-135 mission.

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Retina display, 3.5-inch (diagonal) widescreen Multi-Touch display, 960-by-640-pixel resolution at 326 ppi, 800:1 contrast ratio (typical), 500 cd/m2 max brightness (typical).

This brand new iPhone X OLED and Touch Screen Replacement (Premium) will fix your broken or damaged iPhone X. You can repair your iPhone and restore its original look all by yourself. If your screen is cracked or non-responsive our 5.8 inch display will fix that problem. Get rid of dead pixels so you can get back to watching videos in hi-def resolution. (Disclaimer: Connect the top cable first and then the bottom cable. Doing otherwise will result in a black screen.)

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