Chosen Solution
I buyed used iphone 6S and it was on factory settings. Now i try to activate it, and it says only DEVICE UNKNOWN after wifi set. I replaced charging port and it still wont charge. When i try to put sim-card it only flashes the pincode settings and then disappears. And i cant go recovery mode, because phone does not recognize lightning cable. What i can do?
Chances are the phone has a baseband circuit fault on the logic board. Pretty much not worth fixing as that is a pretty high level board repair. On top of that it’s probably going to be iCloud locked as well. Is the device able to be recognised on computer? 3UTools for example will display all the info about the phone including more in the device verification report. If IMEI is missing the phone is pretty much paperweight and only good for parts at this point.
iPhone goes only Diagnostic mode, when try to go recovery mode.. -.-
