When certain applications no longer function properly or if your Samsung Galaxy S 4 LTE 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 4 LTE may request a security code, which, if necessary, can be found in the instructions of the Samsung Galaxy S 4 LTE. 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 4 LTE to factory settings.
Go to the Start screen.
Choose the Accounts tab.
Choose Backup and reset.
Choose Factory data reset.
Choose Reset device.
Choose Erase everything.
All data and settings saved on the Samsung Galaxy S 4 LTE have been deleted.
The Samsung Galaxy S 4 LTE will automatically reset and reboot.