3 days ago I started experiencing weird phone behaviour. I tried calling someone but i didn't hear the "calling" beeping sound nor i could hear if there was any answer on the other end. Then i couldn't hear anything when i was getting calls. It didn't matter if i use the "loud" speaker or the "on-ear" speaker, the result was the same - no in-call volume. Microphone and "loud" speaker seem to work fine as i could use them as usual with other apps. Mobile data was working, so antenna was also OK, SIM card seemed to function properly as well. Other people who I tried speaking to did hear me fine, just i couldn't hear anything.
I tried freezing, then uninstalling all the non system apps that i thought could have impact on this matter, but that didn't help. I was using AOKP Rom and i had nand backup of Omega Rom 5.2 with stock samsung touchwiz, I tried restoring back to it, but for my surprise the in-call sound was still quiet. I didn't know what else could be and let it alone for an hour or so. Suddenly, the next time I tried it again, it WORKED!. After 2 hours of it working, i got back to my AOKP as i have it backed up right before switching to Omega Rom backup. I defrosted the apps and reinstalled the uninstalled ones. Nothing was influencing the in-call sound of the phone, everything worked fine.
The next day this problem popped up all of a sudden again. I got mad, i tried everything i did before except restoring the stock rom. Nothing helped. I then booted into CWM and set to fix permissions, to wipe Dalvik cache and i flashed the latest modem. Rebooted. The in-call sound was OK again. Something of these actions fixed it.
Today i got this NO IN-CALL SOUND bug once again. Seems like it wasn't the new modem that helped me. I booted to CWM and wiped Dalvik cache, rebooted, the in-call sound was working fine again. So, wiping Dalvik cache does fix the problem so far.
I'm keen to understand what exactly could cause this weird behaviour of disappearing in-call sound. Do you have any ideas?
I tried freezing, then uninstalling all the non system apps that i thought could have impact on this matter, but that didn't help. I was using AOKP Rom and i had nand backup of Omega Rom 5.2 with stock samsung touchwiz, I tried restoring back to it, but for my surprise the in-call sound was still quiet. I didn't know what else could be and let it alone for an hour or so. Suddenly, the next time I tried it again, it WORKED!. After 2 hours of it working, i got back to my AOKP as i have it backed up right before switching to Omega Rom backup. I defrosted the apps and reinstalled the uninstalled ones. Nothing was influencing the in-call sound of the phone, everything worked fine.
The next day this problem popped up all of a sudden again. I got mad, i tried everything i did before except restoring the stock rom. Nothing helped. I then booted into CWM and set to fix permissions, to wipe Dalvik cache and i flashed the latest modem. Rebooted. The in-call sound was OK again. Something of these actions fixed it.
Today i got this NO IN-CALL SOUND bug once again. Seems like it wasn't the new modem that helped me. I booted to CWM and wiped Dalvik cache, rebooted, the in-call sound was working fine again. So, wiping Dalvik cache does fix the problem so far.
I'm keen to understand what exactly could cause this weird behaviour of disappearing in-call sound. Do you have any ideas?