iPhone Problems

iPhone Backlight Not Working - How to Repair

by Jenefey Aaron   Updated on 2019-07-25 / Update for  Fix iPhone

No matter how efficient the iPhone models are, issues can happen anytime. Some iPhone users have recently reported that the iPhone backlight keeps going off or backlight not working after screen replacement, and they don't understand why this is happening. And the issue is that this problem is arising in perfectly working iPhone. Now the point to consider is that the problem had already started but what can we do fix it.

So, we came up with this article, to help the users to repair iPhone backlight. There are only two situations where this can happen, i.e. software issue or hardware issue. We will take both the scenarios into account and then try to resolve the issue.

Part 1: Fix Backlight on iPhone Not Working Due to System Reasons

If you can't figure out what is the cause of the problem then there are chances that the system software is causing you trouble. If the backlight on iPhone stays on or won't turn off, then you can use iOS system repair ReiBoot as a repair tool. The software was basically designed to allow the users to repair various working issues in iOS devices. It can fix the iPhone frozen screen , stuck at Apple logo, black screen of death, backlight not working, update issues, etc.

To fix the backlight on iPhone not working issue, follow the steps given below and repair software of your device. You can download the software from the official ReiBoot website on your Mac or Windows system.

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Step 1: Launch the software on your computer and connect your iPhone with the computer. From the main interface, click on the "Repair Operating System" option and begin the repair process of your iPhone.

select repair operating system function

Step 2: In the next screen, you will see a Start Repair option. You should continue the repair in the Standard mode as "Advanced Mode" is for extreme issues.

use standard mode

Step 3: You will be prompted to download a firmware package file to repair the OS. The software will automatically detect the software version and provide a suitable firmware package file for download. Click on the Download button and wait until the download is finished.

download firmware package

Step 4: Once the firmware package is downloaded, you will see the Repair Now option on the screen. Tap on it to start the repair. The process will take some time and when it is finished, the software will notify you.

 repair iPhone

The iPhone will reboot and you will be able to access your device. The problem would cease to exist and the best thing about the software is that not even a single piece of data will be deleted from the device. However, if the backlight on iPhone stays on and the problem is not resolved, this means that the hardware is the reason behind this.

Part 2: Repair iPhone Backlight Due to Hardware Issue

Step 1: At first create a backup of your device and then switch it off before disassembling it. Push the rear panel of the iPhone and remove it carefully.

Step 2: Now, you should remove the screw that secures the battery connector to the logic board. Using a plastic opening tool, pry the battery connector from its socket.

Step 3: Carefully lift the battery and eject the SIM card from the holder and pry the lower antenna connector off from the Logic board.

Step 4: After this, you will have to remove the screws which connect the Wi-Fi antenna with the logic board and lift it up.

Step 5: Now lift the rear camera connector, digitizer cable, LCD Cable, Headphone jack, top Microphone, and Front Camera Cable.

Step 6: Once you have removed all the parts, it is time to remove the logic board from the iPhone. Now remove the speakers and the screws which hold the vibrator with the inner frame.

Step 7: Now remove the screws from the button and the SIM card side. After all the screws are removed, you can lift the top edge of the front panel assembly.

Step 8: Finally remove the display from the screen and you will be able to see the part which is damaged and causing the backlight issue.

Step 9: At last replace the damaged part and re-assemble your iPhone carefully.

As you can see that it is very complicated to repair iPhone backlight. Therefore, it will be better that instead of doing this yourself; you should contact the Apple Store and get the problem fixed. They will either replace your device or fix it as soon as possible.


Instead of taking the risk to repair iPhone backlight yourselves, it is recommended that you let the professionals handle the situation. The iDevices are very sophisticated and thus, careless can lead to further damaging your device. on the other hand, if there is any software issue, then it is recommended to use Tenorshare ReiBoot as the software can fix over 50 different types of working issues in iPhone without data loss.

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