Originally Posted by mohsen asoode
I have sony xperia zr c5503 android 4.2.2, problem was first no incoming or outgoing sound in call, factory reset not working then I upgrade it to android 4.3 but now sim card no detected and automatically restart every 5 minutes.
flash android 4.3 & safe mode & soft reset & hard reset & reset factory not working and automatically reset every 5 minutes.
microphone record sound in record audio and speaker is working true.
how can I fix it?
Hello!... I will tell about my case.
I bought the ZR in august 2013. It was rooted and flashed to 4.2.2. Everything worked fine. Until January 2014.
The first problem was - Silence during calls. I was not able to hear something. And my voice was not heard on the other side. In tests microphone and dynamic worked fine. External dynamic and earphones did not change something - silence during call remained.
After some time (phone was on and off... and again... and battery was removed some times) problem disappeared. But after one day it came back. And disappeared again... and came back... and so on for few times. The other functions all the time worked good. I only was not able to talk during calls.
I flashed the phone to 10.4.1.B.0.101... and to some previous firmwares by Flashtool. But nothing changed.
The next stage after some days was: I turned the phone off. And after turning on it was not been able to see the network. And wifi was not working. I went to settings and saw - IMEI and MAC have disappeared.
I flashed phone to 10.4.1.B.0.101 again. Nothing changed.
And after a little time phone said something like: "the system application stopped" ( I did not remember exactly). And than after rebooting it went into:
"the phone goes up to locked homescreen and then screen goes black and restarts automatically".
I think our cases may have one problem in basis. And I think the problem is in hardware.
I will go to service center. But I think they are not very good in fixing phones here...