iPhone issues
Hi. I have a job to help, I was in Vietnam, I am using the iPhone 5s 1 black, version 8.4 (12H143),
Currently my phone being an unexplained error. It constantly searching signals and occasional services lost Modem, IMEI. I have contacted many places fix but not receive repair services because this error is very difficult to overcome. I write this mail by the engineering department to determine the cause apple faulty help me and fix this iphone. I thank you very much!
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