[ac0x]

Well if your charging port is loose, then your phone is obviously just flat out "broken" and needs to be fixed/replaced.

But I did have the "phone stuck in headphone mode" problem. I reset the phone. I hard reset the phone. I plugged and unplugged the headset several times. I reset the phone with a headset in. Without a headset in. I blew air in the plug. Nothing worked. I had a replacement sent from Verizon, and was ready to set it up. Then one day, the old phone just started working again, and has been OK for several weeks. Who knows. My guess is just schmootz in the headphone jack was causing contact problems that finally got dislodged.