Chosen Solution
I finally installed my replacement screen from ifixit yesterday, double checked it worked by turning on the device, before I glued it in place. Unfortunately I did not check the screen functions more thoroughly. When the screen brightness dips below 30% the backlight doesn’t continue it’s gradual dimming, but shifts to a dark reddish hue making the screen unreadable at low brightness. Is this a known issue or easy to fix? May it be because of a faulty connection between the screen and the phone or is it a defective screen? Thank you in advance for any assistance on resolving the issue.
Sounds like it could be one of the following: Bad connection - Reseat LCD ribbon cable Backlight circuit damage - Caused during the repair would need to be tested with the multimeter Or and god forbid it, but maybe the screens a dud. 1 in every 10 screens we buy-in for our customers seem to have a slight defect or just dead on arrival from the suppliers. I would try reconnecting the LCD first, give the phone a force restart, this can help. Then put a support request in with iFixIt, while you wait, see if you can find a bad backlight circuit on the board, if there is one.
