Ultimate guide to Fix iPhone 8/8Plus/X Auto Brightness Issue

iPhone 8/8 Plus and iPhone X auto brightness not working after replace a new screen. The reason why this happens that is the phone Sensor Flex Cable and screen are married to the motherboard in iOS 11. Don’t worry, this issue will be fixed in the iOS 12 Beta 2, you can watch more details here:Apple Will Fix the iPhone 8/8 Plus/X Auto Brightness Issue in iOS 12. But if you don’t like to use the iOS 12 beta 2 and want to fix this issue ASAP, here is an easy way to fix it.

iPhone 8-8 -Plus-X ALS Eeprom Programmer-min

There is a machine on the market named “iPhone 8/8 Plus/X ALS Eeprom Programmer” which can read the original screen IC data and write to the aftermarket screen. After data transfer, the aftermarket screen can match to the motherboard, then the auto brightness not working issue is fixed. Here we will show you the processes of fixing the iPhone X/8 Ambient Light Sensor (ALS) disabled issue after screen replacement. The iPhone 8 Plus is the same as the iPhone 8.  

Fix iPhone X auto brightness issue after screen replaced

 
  1. 1. Testing the iPhone X original screen Ambient Light Sensor function. Screen auto brightness function works normally.
  2. 2. Move the sensor flex cable from the original to the aftermarket (include OEM and China Made) screen.
  3. 3. Testing the iPhone X aftermarket screen Ambient Light Sensor (ALS) function. Screen auto brightness function fails to work.

iPhone X original and afterscreen ALS test result:

 
Screen Sensor cable Result
Original Original Normal
Aftermarket Original Fail
 

Transfer the iPhone X original screen IC data to the Aftermarket screen

  • - Power on the iPhone 8/8 Plus/X ALS Eeprom Programmer with USB data cable and charger.

How to Use ALS Eeprom Programmer 1-min

  • - Connect the iPhone X original screen to the left.

How to Use ALS Eeprom Programmer 2-min

  • - Connect the iPhone X aftermarket screen to the right. (The original screen and the aftermarket screen connect to the machine in different directions)

How to Use ALS Eeprom Programmer 3-min

  • - Press “PROG” first, then press “Read” to start reading the screen data, it takes about 3 seconds. (If it reading fails, please check if the screen connector is fastened)

How to Use ALS Eeprom Programmer 4-min

  • - Press “Write” to transfer data to the aftermarket screen, it takes about 3 seconds.

How to Use ALS Eeprom Programmer 5-min

  • - Disconnect the screen connector.
  1. 4. Testing the iPhone X aftermarket screen ALS function after data transfer. Screen auto brightness function works normally.
  2. 5. Move the iPhone X sensor flex cable from aftermarket screen to the original screen.
  3. 6. Testing the iPhone X original screen ALS function. Screen auto brightness function works normally.

iPhone X original and afterscreen ALS test result after data transfer:

Screen Sensor cable Result
Aftermarket Original Normally
Original Original Normally

Fix iPhone 8 auto brightness issue after screen replacement (The iPhone 8 Plus is same as the iPhone 8)

  1. 7. Testing the iPhone 8 original screen ALS function. Screen auto brightness function works normally.
  2. 8. Move the sensor flex cable from the original to the aftermarket (include OEM and China Made) screen.
  3. 9. Testing the iPhone 8 aftermarket screen ALS function. Screen auto brightness function fails to work.

iPhone 8 original and afterscreen ALS test result:

 
Screen Sensor cable Result
Original Original Normally
Aftermarket Original FailS

Transfer the iPhone 8 screen IC data to the aftermarket screen

 
  • - Connect the iPhone 8 original screen to the left.
  • - Connect the iPhone 8 aftermarket screen to the right. (The original screen and the aftermarket screen connect to the machine in different directions)
  • - Press “Read” to start reading the screen data, it takes about 3 seconds. (If it reading fails, please check if the screen connector is fastened)
  • - Press “Write” to transfer data to the aftermarket screen, it takes about 3 seconds.
  • - Disconnect the screen connector.
  1. 10. Testing the iPhone 8 aftermarket screen ALS function after data transfer. Screen auto brightness function works normally.
  2. 11. Move the iPhone 8 sensor flex cable from aftermarket screen to the original screen.
  3. 12. Testing the iPhone 8 original screen ALS function Screen auto brightness function works normally.
 

iPhone 8 original and afterscreen ALS test result after data transfer:

Screen Sensor cable Result
Aftermarket Original Normal
Original Original Normal

  Watch the details about how we fix the iPhone 8/8 Plus and iPhone X auto brightness issue here:


 Have any other questions about iPhone, welcome to comment below.   

You may also like:

   

LEAVE A REPLY

©2016 ETrade Supply Blog All Rights Reserved

successSuccessfully submitted!
Thanks for your suggestion!