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hello I used screens of tester with this phone is blocked iCloud yesterday it broke down I the lights I attached the image below A person will have an idea of the problem or could come I tried 2 other screens etr is always the same problem I think it comes from the motherboard of a resistance to be touched Thank you to enlighten me on my problem
This is a belated answer so hopefully it can be of use to folks who search for and find this question. This looks like a faulty screen. Whenever there are screen issues on an iPhone, the first step in troubleshooting is to check the connections and insure that the flexes and connectors are not damaged or have debris that impede a proper electrical connection. Afterwards, try a replacement screen, preferably a known-good part. If the replacement part fails, then the issue is most likely at the logic board level.