Today I'll show you how to reset Samsung Glaxy Tab 2 P5100.
Use this method on Samsung Glaxy Tab 2 if you don't know your pattern unlock code or if you have software problems with your tablet.
Warning! All user data will be lost!
Power off your tablet.
Press together volume up button + power button until Samsung logo appears on screen and then release your fingers.
Select with volume keys "wipe data/factory reset" and then press power button to confirm this.
Select with volume key "yes-delete user data" then press power key to confirm.
Wait until format ends then press power key to confirm "reboot system now"
That's all!
For more details you can watch the entire video here:https://www.youtube.com/watch?v=J2ffKQHu0Ls