5- Any other log-in info and settings you used on your Samsung Galaxy Tab 2 101.
1- Make sure that your Samsung Galaxy Tab 2 10.1 is Off, If not, Then turn it off (Press and hold the Power key, and then tap Power off). And remove the Memory card from it.
2- Press and hold Volume Up key then press Power key.
3- Keep pressing the above keys until Samsung logo appears, Then when you see Samsung Logo release all keys.
4- You will be into Factory reset menu.
5- Use Volume Down key to select Wipe Data / Factory Reset option.
6- Use Power key to confirm the operation.
7- You need to use the Volume Down key again to select "Yes delete all user data".
8- Use Power key to confirm.
9- After performing the hard reset, Select Reboot System Now option, And confirm it using Power key.
10- Now your Galaxy Tab 2 10.1 will reboot, Wait for it to be fully on and then you can start using it. Select your preferred device language, And follow the on-screen instructions to proceed the initial setup.