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当前版本: Ben ,

文本:

Could be a no backlight or no image issue on this phone.
 
To check for no backlight issue connect a replacement screen. Then plug battery back in and attempt to power it on.
 
Then shine a flashlight on the screen. Might need to angle the flashlight to see a dim apple logo on the screen.
 
If you do see a dim apple logo it means the backlight circuit needs diagnosing and repair which is board level repairs / microsoldering work.
 
 
 
Might have been damaged from previous repair so also good to check components near screen connectors and the connector itself for any physical damage.

状态:

open

原帖由: Ben ,

文本:

Could be a no backlight or no image issue on this phone.

To check for no backlight issue connect a replacement screen. Then plug battery back in and attempt to power it on.

Then shine a flashlight on the screen. Might need to angle the flashlight to see a dim apple logo on the screen.

If you do see a dim apple logo it means the backlight circuit needs diagnosing and repair which is board level repairs / microsoldering work.

状态:

open