LG G4 (LGH815) - no sound at all

Hey guys,

trying to fix this LG G4 which has problems with sound. There is no sound at all...

Tried to factory reset but that didnt help, even re-installed stock rom with LG Bridge in Download mode using the "software update error" method.

The bootloader is unlocked if that matters..

Important info: After factory reset the volume is at ~50% .. i can turn it up and down (but no sound) but when you turn off the volume completeley and turn it back up it starts to hang and system crashes (force close "system" and the ui restarts).

Even over the headphones there is no sound.

Any ideas? How can i return it to 100% stock (relock bootloader and flash EVERYTHING including the bootloader n ****?)

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