Most Helpful Answer. Note: In this article, “original” refers to a screen manufactured by Apple. This wasn’t affected by the ALS issue under iOS 11… but it is disabled under iOS 12 if you’re using a replacement screen that hasn’t had the serial transferred. Try to scratch the paint away on the back of the screen where the sensor is supposed to look - similar to some aftermarket screens, the filter may be too thick for the sensor to see properly. There’s no real pattern shown but it seems to be affecting a large number of devices. AT&T iPhone Unlock (Contract/Blacklist/Lost), Logic Board A + Display B +Cable A (Hot Swapping), Logic Board A + Display B +Cable A (After Rebooted), Logic Board A + Display A +Cable B (Hot Swapping), Logic Board A + Display A +Cable B (After Rebooted), Logic Board A + Display B +Cable A (After Restored), Logic Board A + Display A +Cable A (Hot Swapping), Logic Board A + Display A +Cable A (After Rebooted), Logic Board A + Display A +Cable A (After Restored Again), Logic Board A + Display A +Cable B (After Restored). However, there was some concern as to whether this would make it into the final release. The first is Apple’s True Tone feature that alters the screen’s colour balance (rather than brightness) to match the ambient light. The other issue is that there’s nothing stopping Apple from reverting the ALS fix at any time as part of an update. UPDATE (6/30/2018): The fix is now available here. Your email address will not be published. If you continue to use this site we will assume that you are happy with it. Test this by putting your thumb over the sensor, it should dim down. 8 Common iPhone Issues after Updating to iOS 14 and How to Fix Them. How To Unlock MacBook By Removing EFI Password? We’re also checking all the different components within the logic board to see how Apple put this restriction. (At present, we’re one of very few local companies that both fit third-party-refurbished original screens and own and use one of these- see below for why this is a much better fix than the iOS 12 update). Carrying out a MOSFET replacement on the motherboa, Utter filth! If you change the screen on an iPhone 8, iPhone 8 Plus or iPhone X still running iOS 11, then the ALS sensor won’t work any more. Even with a genuine part replacement, the ambient light sensor still didn’t work properly. We performed our own sets of tests below. For some reason, the replacement will trigger a component within the logic board to turn off the ability of the device to adjust the screen brightness. Your email address will not be published. You can’t enjoy a low cost service compared to the one offered by Apple. Well the black hole above the earpiece is for the proximity sensor, the ambient light sensor is invisible from the front side. This doesn’t work on copy screens as they don’t contain an original IC to transfer it to; it only works on original (and refurbished) LCDs and OLEDs. Just last month, people are complaining about the ambient light sensor of the iPhone 8, iPhone 8 Plus, or iPhone X are not working after third-party screen replacement. What are the ways to fix this issue? There are reports saying that Apple disables the ambient light sensor when the screen is replaced. This is good news as far as it goes, but there are still some problems…. The problem of the non-functioning ALS sensor was apparently fixed in the iOS 12 beta (released in June 2018). We will update this article soon. This is also happening even with genuine screen replacement. Joe Wang studied electronics engineering and is a specialist in Apple and Android products. This is also happening even with genuine screen replacement. Even if you swapped a complete assembly- including the ALS sensor- from one iPhone to another, the ALS still wouldn’t work. September 28, 2018   |   (Since we’re one of the few local repair businesses to own a serial reprogrammer, this means that our third-party-refurbished original screen replacements won’t suffer the same risk of the ALS being disabled again, and that you can continue to enjoy True Tone with your new screen, even under iOS 12). The only fix for now is to get it fixed at an official Apple store or at an authorized repair center. Why The ALS Sensor Is a Problem for iPhone 8, iPhone 8 Plus and iPhone X Screen Replacements. This site uses Akismet to reduce spam. Copyright © 2020 Disc Depot Ltd. All Rights Reserved. You can see our screen programmer in the images. 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