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4 iPhone turns off. Sometimes it´s just rebooting
Hi.
Got an iPhone 5 that keep turing off (no particular pattern)
When it turns off I have to press both the on and home button.
Sometimes it´s just rebooting (the apple-logo keeps circling)
And sometimes the apple-logo fades away, and nothing happens.
I´ve tried to change the battery (3 different batteries)
