Stops on the apple logo when I switch it on and USB can't read.
My iPhone 6 plus had a faulty battery and after the technician replacing it, the phone started rebooting itself every after a minute. He tried to flash it but it could not. It read error something. Right now it can’t read in a computer and when i try to switch it on, it only brings the white screen with the apple logo and then the black screen then it goes off.
The USB can’t read too. I’m stuck because i do not know what the problem is.
I appreciate your help!
PS i’m in a country with no Apple shop.
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