My LG G4c The sound volume is very low on incoming calls

SOURCE: Samsung SCH-u740 incoming call ringer volume

Have you tried this? With the phone open, using the side key next to the charging port to adjust your volume then pushing OK to set it before closing the phone.

SOURCE: LG. Model RZ-17LZ40

sound board going bad.

SOURCE: Where is the volume control on LG KU990?

its the camera ring thingy outside the lens on the back of your phone, you can turn counter clockwise to increase the volume (might be the other way I'm not sure)

SOURCE: Why can callers not hear my voice on my LG KS360?

i found the solution on the internet:
I've had this problem with mine. It got continually longer and other functions seemed to be running slower. At worst, it took 40 seconds to hear an outgoing call. I cleared the call log and that helped and it seemed to get slower again as the log got longer until I cleared it again.
I think the call log might be getting loaded in the background and using more resources as it gets larger but that's mostly a guess.

SOURCE: Sound volume is very low on incoming calls. Have

Send your phone to service, my nokia is dead too, so far 6 friends that have NOKIA TOUCH mobiles 5230, 5530 and 5800 all of them lasted around 6-8 months before the sound from incoming calls is very low with all the settings on volume set on high.

Things that will NOT fix the problem: Reseting phone, isntall up to date software.

BEST SOLUTION GET YOUR PHONE TO SERVICE