GiiNii Digital Photo Frame quit working?

M GiiNii GN-A17 digital photo frame worked fine for 4-5 years and then it would shut down and start up again on it's own for about a week, but now will not turn on at all & am at a loss as to why. I have always turned it off at night as it's in our bedroom and too bright for sleeping and then turned it on again in the morning. My best guess is the switch. Any ideas?