If the problem keeps happening, it could be the battery.

It has a lithium battery, and when they die, it's like they have full
power then lose it quickly.

For awhile, mine would let me load patches, then when I'd restart, I'd
get the gibberish. It would let me load a bank via midi when powered up,
but lose it after powering down. That kind of thing.

The battery in mine was maybe spot-welded in, and I ended up replacing
the battery holder too. They had one at Radio Snack. It's a common
battery you can get off the rack at a grocery or variety store. CR-232
or something.
____________________________________________________________
1 Tip for Losing Weight
Cut down 2 lbs per week by using this 1 weird old tip
http://thirdpartyoffers.juno.com/TGL3141/4c793a7db59f8156e7cm07vuc