iPad 3 restarts every 3 minutes
Client brings in iPad 3 Wi-Fi with GSM that he tried to reset because it was constantly re-booting. So it came in stuck on activation screen. It fails to activate, displaying that activation server is temporarily unreachable.
I timed it, and exactly every 200 seconds it restarts, starting with what looks like a "grey curtain" being drawn over the screen then boot-looping. When on the activation screen, it charges and holds the charge normally.
I am not sure if I should try a restore, I'm afraid to brick it.
Anyone solved an issue like this before? Or can suggest something to start with?
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