troubleshooting iPhone 5 Display Problems

[AnDRez]

Problems​

• White Display
• No Display
• Lines on Display
• Low Light on Display
• No Backlight

Reasons of Problems

• Phone might be water damaged.
• Problem is caused due to dust or dirt.
• Connection of LCD with display on-board connector has become loose.
• Any of the components of display connector might be faulty.
• Dry soldering of display connector pins.
• Phone has encountered any kind of physical damage.

Workaround

Manual Solution is basically only for low light and Backlight issue, and in order to resolve that all you have to do is to go into settings and check for brightness (Remove check on Automatic Brightness).
For Backlight, check backlight settings and timings.
Hardware Solution

Solution for White Display / No Display / Lines on Display

• Plug and Unplug LCD Display connector and check.
• Check with any other working LCD Screen in order to verify whether iPhone 5 LCD display is faulty or if there is hardware problem.
• Now clean display connectors and check.
• If it’s still not working then re-solder all the pins of display connector.
• If the above step fails then gently heat all the components of display connector and check.
• If everything else fails then change iPhone 5 display connector but this should be considered as the last resort.

Solution for Backlight and Low Light Problem

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• Now switch the board upside down in order to get access to Back light coil and IC.
• Replace Back light Coil and Check.
• If the above step doesn’t work then replace back light IC.

All of the above methods will surely help you to resolve your iPhone 5 screen problems. If it is not the problem with your display screen then you will be able to overcome this problem in a cost effective manner, however if the problem is with your display screen then the procedure will be simple but costly, as the iPhone 5 Screens aren’t that cheap.​