No, tablet computers store their data in Flash memory a type of electrically writable read only memory (a solid state replacement for harddisks with no moving parts to break). Flash requires no power to retain data, once that data has been written.
I have no idea.
Go to Settings > Device Info > Erase & Deregister Device
yes it will
No.
With a scan tool or by unhooking the battery.
Do you mean HOW TO ERASE or did they erase by themselves and you want to know why?
diconnect the battery then connect it
No. Replacing the battery will not wipe the phone. Make sure the phone is off before you disconnect the battery though!
Nope
Should be able to just disconnect your battery for a few minutes and it will erase the codes.
my brothers internal batterie has run dry and corrupted. its impossible to fix it, even if you erase your file.
Without a code reader (you can buy one for about $80 at most auto parts stores), you can sometimes erase the codes by disconnecting the battery cables. Most newer code readers allow you to erase the computer memory.