Power-Cycles - Casio C771

Hello,

I was just curious if anyone has any tips with regards to mitigating frequent power-cycles? I'm currently playing on a Casio C771 (Android 2.2). Some days, I can play for hours without issues; other days, I play for five minutes and experience a power-cycle -- then, after the "reboot," I may experience a string of additional power-cycles. It's very hit-or-miss, but always frustrating.

I've noticed that my virtual keyboard quits appearing when I try and type something immediately before a power-cycle is going to occur (if that's of any value).

Best Regards,
Ephemeris