When certain applications no longer function properly or if your Samsung Galaxy S III Mini is very slow, you can reset the device to its factory settings. This will reset the telephone to the settings it had when you first turned it on.
Please note: your Samsung Galaxy S III Mini may request a security code, which, if necessary, can be found in the instructions of the Samsung Galaxy S III Mini. Make sure you have them at hand.
If you purchased a used device and do not know the code, you should ask the previous owner for it.
Please note: resetting the device will erase all data and settings on the device. If necessary, make a backup on your computer.
Select Next for step-by-step instructions to reset the Samsung Galaxy S III Mini to factory settings.
Go to the Start screen.
Choose Backup and reset
Optional: Choose Back up my data, and tick this option.
Choose Factory data reset.
Choose Reset device.
Choose Erase everything.
All saved data and settings on the Samsung Galaxy S III Mini will be deleted.
The Samsung Galaxy S III Mini will reset and reboot.