I have an Samsung Galaxy S4 I9505 and it have a problem with loud speaker. When i turn on the phone everything its working but after a while the speaker dont want to make any noise, in music player, setting or if somebody calls me even if the volume its at maximum. if i restart the phone it works again but only for a period of time. I tried already factory reset and i flashed a diferent (older version) rom with odin. I dont think its a hardware problem if it works even for a while... What do you think?