Phone quit. will not charge or turn on. worked fine last night.

Try pulling the battery for about 60 seconds, and clean the contacts and make sure that the battery sits properly and has good contact with the phone.

The LG Ally is designed to turn on while it is charging, so try attaching it directly to a wall socket and possibly using another charging cord if you can. If a new cord plugged into the wall does not turn the phone on, the phone probably has a severe hardware issue that you may not be able to correct through repair, I would recommend sending it in for warranty repair if you are still under warranty unless the phone has physical or water damage.