Samsung recently rolled out its latest Android 4.3 (Jelly Bean) official update for Galaxy S4 (LTE) GT-I9505 users in Europe. The new firmware can now be easily rooted via CF-Auto-Root tool by XDA developer, Chainfire.
Users who are rooting their device using this tool should note that Samsung's KNOX security system will get activated once the Galaxy S4 is rooted, and it cannot be reset or erased. In other words, this could void the warranty on the device, as the flash counter on the device will change from 0 to 1 after rooting.
IBTimes UK will not be held liable for any device damage during or after firmware installation. Users are advised to proceed at their own risk.
- This guide and the given rooting tool are meant for Galaxy S4 LTE I9505 model only. Do not attempt this procedure on any other device, as it may inadvertently damage or brick the device. Verify the device model number by navigating to Settings > About Phone.
- Backup your important data and settings on the phone to prevent data loss during root installation.
- Ensure the correct USB drivers are installed for the phone on computer (download Galaxy S4 LTE I9505 USB drivers).
- Make sure that the phone has at least 80% battery charge before you begin.
- Disable Samsung KIES as well as any security software installed on the computer.
NOTE: Backup important files on the phone's SD card, so if you perform a data wipe or factory reset on your device via recovery (which also formats the SD card), the data may be restored after rooting the device.
How to Root Galaxy S4 LTE GT-I9505 on Android 4.3 XXUEMJ5 Official Firmware via CF-Auto-Root
1. Extract the root file CF-Auto-Root-jflte-jfltexx-gti9505.zip on your computer via 7-zip software to obtain a .tar.md5 file.
2. Also extract Odin 3.07.zip file to obtain Odin3 v3.07.exe.
3. Double-click the exe file to launch Odin.
4. Boot the Galaxy S4 GT-I9505 into Download Mode. To do so, turn off the phone and wait for 6 to 7 seconds until the device completely shuts down.
5. Press and hold Volume Down, Power and Home buttons together until the "Warning!" message appears on screen. Then hit Volume Up button to progress into Download Mode.
6. Connect the phone to computer. When the phone connects successfully, a message saying "Added!" will appear at the bottom left box in Odin.
7. If the "Added!" Message fails to appear, you may try the following troubleshooting steps:
- Ensure the correct USB drivers are installed for the phone on computer
- Try uninstalling and reinstalling the phone's USB drivers
- Connect a different USB cable and check.
- Try using another USB port on the computer (preferably the one at the back)
- Reboot the phone and PC. Then check if the message appears.
8. Upload the firmware files in Odin as suggested below:
- Tap the PDA button in Odin and choose the .tar.md5 file, which was extracted in step 1.
9. Enable Auto Reboot and F. Reset Time options in Odin. Leave all other boxes in Option section unchecked.
10. Verify the previous two steps are done correctly. If there is a mistake, it may brick your device.
11. Click Start in Odin to begin the firmware flashing process on your Galaxy S4. Wait until the PASS message appears in Odin's top left box.
12. When the PASS message appears, the phone will restart automatically. Now, it is safe to disconnect the phone from computer.
NOTE: If a FAIL message appears in step 12, just disconnect the phone from computer and exit Odin. Remove the phone's battery and reinsert it in 3 to 4 seconds, then launch Odin and repeat the entire tutorial from Step 4.
Troubleshooting for Stuck at Logo or Boot Loop Issues:
- Turn off the phone, remove and reinsert the battery into the phone. Check if the issue is resolved.
- If the issue persists, perform a Wipe Data/Factory Reset via recovery. To do so, boot into recovery mode as follows: press and hold Home, Volume Up and Power keys together until the screen powers on and then release all three keys to enter recovery mode.
- In recovery mode, use Volume keys to navigate and Power key to select an option.
- Choose Wipe Data / Factory reset in recovery and then click Yes to confirm.
- Finally, choose Reboot System Now.
[Source: Android Soul]