Locked out of Tablet I have been locked out of my tablet by someone who is asking for money to unlock it.  I was given 3 days to do this.  I know it is a scam.  How do I unlock my tablet?
The likelihood of you being locked out of your tablet again after entering is very high if it is a virus, you can take your important data such as photos off with a computer.
If you have root, adb and USB debugging you can reset the lock by typing this into adb;


adb shell
su
rm/data/system/locksettings.db
rm/data/system/locksettings.db-wal
rm/data/system/locksettings.db-shm
REBOOT


As a last resort you can re-download the system image and flash using something like twrp and then install apps again from the play store. Google now saves app data for some apps so you won't lose everything and some data is synced to your account.