Do you use Blue Tooth? If so, try turning the volume all the way up and then back down. I believe this is a BT issue. Every time I connect to BT and make a call (car or headset) I get a volume runaway. If I don't place a call while connected to BT everything is OK. If I do place a BT call then disconnect, the phone ear speaker volume will be way too loud on the next call using only the phone. The only solution I've found so far is to adjust the volume on the ear speaker to full high then bring it back down to where you want it. I had this exact issue with my DInc and it is VERY annoying! I am stock.