Samsung Galaxy Factory Reset
Warning – this will delete all stored data on your phone. Typically photos are stored on your S3’s SD card, and contacts can be stored on your SIM card. But anything else, including bookmarked websites, stored passwords, and applications will be erased permanently. It is good to back up EVERYTHING on your phone, just in case something goes wrong.
Step By Step
Step 1 – First, you need to power off your S3. Hold down the button on the right side to turn it off, wait for it to shut down, and move to step 2. If it won’t shut off, try removing the battery and putting it back in the slot. There should be a spot for your fingernail on the bottom of the device to remove the back cover, giving you access to it.
Step 2 – Hold down the volume up button on the left side, power button on the right side, and menu button on the front. Wait for about ten seconds, and then your device’s screen should begin activating. It can be a little finnicky, so try your best to press all 3 at the exact same time.
Step 3 – You’re going to be at a sort of “bios” menu now, where you can use the volume up and down buttons to scroll between the several available options. Use the volume down button to select “wipe data/factory reset” and press the power button.
Step 4 – It will ask you if you want to delete all user data. Select Yes if you have backed everything up properly.
Step 5 – After your data is completed deleting from the phone, select “Reboot System Now”. This will reinstall default applications and the operating system, giving you access to essentially a brand new phone. Any software issues should be resolved, and your phone should be like new!