So my s10 slid out my pocket today at work and fell on the volume button (out of all places) and smashed the metal. Volume was stuck all the way down and stuck in safe mode. But what I did to fix it which idk if it's all galaxy's or just the s10 but the volume was not connected by any wires, so wiggle the wire side of the volume button (carefully) and it will eventually come out, take it out look at the damage, don't try to fix anything just place the volume button equally in and press equally in and it will go in and work perfectly fine, if your a lil nonphone savvy like my self then you'll prob notice the button that was stuck is a little harder to press in but still does its function. Then you can disable your safe mode and It will be off for good but also get the phone looked at after so it doesn't happen again.