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Hello.
I have a question. There was a boot loop problem on this iPhone. I made iTunes restore to factory default using DFU mode. Unfortunately I can not activate the iPhone now. When I connect an iPhone to iTunes, it wants a SIM card, but even after inserting a SIM card it fails to activate.
Does anyone know where the problem is?
Thank you for your answear.
Simon
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The boot loop was probably caused by a logic board failure. Once you restored it, the same failure is impeding your device from activating. That gives us a clue that the issue could have to do with the cellular subsystem (which is used in activation). The iPhone 6 series is well known to have Baseband IC failures due to some weak traces on the logic board.
I believe you will have to have this device looked at by a shop that does micro-soldering repairs.
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