[DrMoze]

Didn't see this specific problem so I'm looking for suggestions of a possible cause. My 350 is becoming unresponsive daily when I try to start it up--power switch does nothing, once or twice a day. As soon as I connect it to a charger or computer by USB, it starts up and loads as if it were fully shut down. (Orange light blinks a couple of times, then the red comes on.) The battery indicator is full both before I turn it off (sleep) and when it recovers via USB.

I've left it connected to a wall charger overnight as well, same problem the next day. Only added book recently was a library-borrowed ePub, which I finished and deleted; same 'dead 350' problem still occurs.

It seems like it might be a charging problem or dead battery that isn't holding a charge, but the battery level also indicates full and I have charged it for long periods to no avail.

I'm using PRS+ firmware; had a russified firmware earlier. (Forget which one exactly.) No problems until about a week ago; now when I try to turn it on it's a crapshoot whether it will behave normally or be unresponsive.

Would a factory reset help? ANy other thoughts or things to check? (I've had Sony Readers for about 4 years now and I think I'm familiar with most of the general issues, but this problem is puzzling/frustrating me!) Thx!!!