Method 2: Hard Reset Samsung Galaxy Tab Active3 Using Recovery Mode The second way to reset the Samsung Galaxy Tab Active3 is through recovery mode. If you cannot access your phone contents and if you have forgotten pattern lock or screen lock, then you can reset your Galaxy Tab Active3 from the physical button and unlock your phone through
Factory Reset Samsung Galaxy Tab 2 10.1 GT-P5100 from Recovery Menu: 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 Press and hold the Power/Lock button, then select Power off > Power off . To turn the device back on, press and hold the Power/Lock button until the screen lights up. If a power cycle does not resolve your issue, perform a device restart. Press and hold the Power/Lock button, then select Restart > Restart. .