How To Unlock PASSWORD of Android PHONE And TABLET Here is the steps for the unlock your android smart phones and tablets Step-1. First of all Power Off your device. Step-2. After this just press Up Volume Key and hold it. Step-3. Now press the power button and hold it. Step-4. It will start a secret terminal. Step-5. You can use home button for go up and down. Step-6 . You can use option DELETE ALL USER DATA. Step-7. It will take some time, and problem is solved. NOTE :- when u use this trick then at that time keep 1 thing in mind-after using this trick u will lose your all mobile data.