How to enter Samsung Galaxy S4 LTE I9506 Recovery Mode, Download mode and Hard reset.
Recovery Mode
- Turn off the device
- Press and hold Volume UP key + Home Key
- then Press and hold Power key
- Release all key when Samsung logo appear then you will see Android System Recovery
- Use Volume UP key and Volume Down key to select Menu
- Use Power key to Confirm or Execute Menu
Download Mode or ODIN Mode
- Turn off the device
- Press and hold Volume Down key + Home key
- then Press and hold Power key
- Release all key when you see ODIN Mode
- Use Volume Up key to continue
- Use Volume Down key to cancel ( Restart the device )
Hard reset Samsung Galaxy S4 LTE I9506
- In Recovery Mode select wipe data / factory reset
- press Power key to confirm
- select Yes — delete all user data, press power key to confirm
- select Reboot system now to finish hard reset
Warning! If you perform a hard reset, make sure to back up important data.