Unroot/Unbrick, Flash official stock firmware on Galaxy S4 GT-I9500 & I9505

Backup Steps:

- First Download Samsung Kies software in case your don't have it yet.

- Install it and restart your computer.

- Connect your Samsung mobile phone to the computer using the USB cable.

- Wait until Windows detects it and installs the needed drivers for it.

- When Kies program detects your Samsung device you will see some Basic information about yours, Like Device name and memory ..etc.

- Now click on Back up / Restore tab.

- Select what data you want to back up ( Contacts, Call Log, Music, Photos...etc).

- Click on Back up button.

- Wait until Kies program finishes the back up, Then click Complete button.

- Done



Samsung SGH-I317 Galaxy Note II For AT&T Hard Reset Steps:

- Make sure that your Samsung SGH-I317 Galaxy Note II is Off, And has no SIM or Memory cards inside.
- Take out its battery for 10 seconds, Then put it in again.

- Press and hold Volume Up key + Home + Power button.

- Keep pressing the above keys until Samsung logo appears,Then release Power key only.

- Wait until you are into Factory reset / System Recovery menu, Then release all keys.

- Use Volume Down key to scroll down and select Wipe Data / Factory Reset option.

- Use Power button to confirm the operation.

- You need to use the Volume Down key again to select "Yes -- delete all user data"

- Use Power button to confirm the operation one more time.

- After performing the hard reset, Select Reboot System Now option, And confirm it using Power button.

- Now the phone will reboots, Wait for it to be fully on and then you can start using it.