I installed fresh new Duracell batteries about 3 months ago in my TZ and I haven't been playing it a lot lately. Like a week or more without powering on.
In that time it happened twice that it booted with Factory settings restored?!
It doesn't happen every time. If I power it off and back on right after or in the same day, week maybe it doesn't restore factory settings.
The batteries are new. But still if the batteries were bad it probably wouldn't act like that..
Any clues?