Chosen Solution
Hi, the last 2 weeks, we have the problem, that our replacement display assemblys for iPhone 4s are not working if the ios is smaller the 6.0. The display stays black, Touch and Backlight are working. Do you know the problem. How to solve it?
I am having the same issues…It seems that the new screens prevent the phone from booting up. But if the phone is booted with the old screen, and then if you hotswap the screen while the phone is asleep, the new display will work. This prevents you from shutting the phone off I had 3 different screens from 3 different manufactures and 2 iPhone 4s’, both exhibited the same issue.
I think I would be contacting your vendor about that. It’s not really a repair issue as much as it is compatible part. We see this often with computer HD’s new ones claim to be backward compatible but then are shown not to be. If this Answer is helpful please remember to return and mark it Accepted.
Any solutions for this problem. I’m starting to see a lot of phones with this problem even with ios6 and later. If I run an old screen it works. None of my new screens will light up but they work fine on other phones.
Same problem with an iPhone 4 with iOS 5 but another one witch iOS 4 worked ! 2 screens tested, same issue with both, solved by an upgrade to iOS 7.2
