it is more advisable before installing any roms is entering android recobery mode menu and try a hard reset
this link you can find all firmwares for Polaroid tablet
here is the trigger for a13 tablet processor (that is only the activator)...
Here we leave a list ROMS For based tablet All Winner A13
playstore try to restore the factory version
"or try installing a previous version
there is nothing but more to reinstall acer cpu is your tablet firmware.que
and you checked the battery with a voltmeter? to see if it gets load
Charger tablet connects the wing and when to loading
check the format...
Desoft. have the firmware link sent to you.
for review by plis. to see that I can help
I Apaciona technology.
you can try these I hope and I work
This link is a list of Roms. I have found this list Looking for a Roms, for my Tablet Here I leave the Link
Exactly where looking
Separate names with a comma.