[Q] low signal with sgs3, 3G working, SMS working, but when I call it turns mute
I have a Galaxy S3 (I9300) with a Custom Rom and I have the problem that I can't make any calls.
I have 3G, I can send SMS but when it comes to calling, I can't hear the other person and they can't hear me.... it's like as if the mic and the speaker turns off, when I'm calling. It's the same even with a headset. I already tried different Custom Roms, CM10.2, CM10.1, SlimRoms etc. and always the same. Sometimes it worked, but often it didn't.
So I think it can't be the software. And I also replaced the micro SIM-Tray on the phone, but still the same. The signal is always low, but as I said, I can use 3G and SMS and even make but can't hear the other.
Any suggestions? Is it possible to replace the SIM Antenna? Or what else can I do?
Thanks for any help.