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Samsung A997 Rugby III Hard Reset and Restore Instructions - The Samsung A997 Rugby III comes with GSM network with frequency of  850 / 900 / 1800 / 1900 and HSDPA network with frequency of 850 / 1900 / 2100.  The phone measuring 104.1 x 53.3 x 20.3 mm and powered by 468 MHz processor. There are 256 MB internal memiry and 128 MB of RAM. The Samsung A997 Rugby III equipped with 3.15 MP camera and it has 2.4 inches,TFT with 240 x 320 pixels resolution. In addition also equipped with secondary external CSTN display. Ok, if you want to hard reset and restore for Samsung A997 Rugby III phone, read below:

Samsung A997 Rugby III Hard Reset Instructions
As usual first, enter *2767*3855#
Dont firget backup all  your data like contacts, messages etc because it will be lost!
To SIM or make backup to your PC before full reset! Take out SIM card before full reset.

You can easily reset your phone to its default settings. To reset your phone, follow this instructions:
1. From Idle mode, touch MENU ➔ Settings ➔ Phone ➔ Reset Phone.
2. At the All settings reset to factory defaults. Continue? prompt, touch Yes to reset or No to cancel.
3. Enter your phone password, if prompted, and touch Confirm.
4. After the phone settings have been reset, the Reset done confirmation displays. Once your phone resets to its default settings for those selected options, it automatically restarts in order to incorporate the new settings. Note: User Data, such as contacts, messages, pictures, videos, and music, is not deleted.

Samsung A997 Rugby III Restore Instructions
Actually to  Samsung A997 Rugby III restore is the same as the Reset Phone option described above in that all settings are reset to factory defaults. However, with the Restore Phone option, all user data is deleted. Warning!: All User Data such as contacts, messages, pictures, videos, and music will be deleted. Ensure that you remove your MicroSD card if applicable because it will be erased with the Restore Phone option.

• use this guide only for the Samsung Galaxy S4 model number I9500. Don’t try to use this tutorial with any other Android smartphone as you will end up bricking it.
• your phone had to be factory unlocked.
• by rooting your smartphone you will void the its warranty.
• backup some of your most important data files before starting the rooting process.
• your computer needs the Samsung USB Drivers installed on it, so that the Odin tool will connect the PC with the Galaxy S4 device.
• in case your device doesn’t boot with the new firmware, then you will have to use the instructions listed at the end of this post to ‘factory reset’ the device. That’s why you should backup your most important data before starting the root.
• disable the Samsung Kies software and any antivirus applications from running on your computer. Such apps will interfere with the rooting process and you might not be able to complete the tutorial.
• enable USB Debugging. This is found in Developer Option, but some phones doesn’t have the Developer Options listed in the Settings drawer, which is why you need to open About Device section and tap 7 times the Build Number menu. This will enable the Developer Options, open it and check the USB Debugging box.
• read the entire guide before starting the update.
• don’t skip any steps that I have listed in the tutorial, as that will result in a failed root attempt.
• make sure that the phone’s battery is charged so that the phone doesn’t power off while you’re attempting to flash the rooting files.
• we cannot be held responsible in case you lose data files or you brick your device. This is a tutorial for advanced Android users and you shouldn’t attempt to use this guide in case you don’t know what you’re doing.
• ask for extra help in comments in case you cannot complete the root.

1. Download the CF Auto-Root zip file by Chainfire from HERE. Save the file on your computer.
2. Extract the contents of the zip and leave the folder on your computer’s desktop Lcd.
   > you’ll obtain a file titled CF-Auto-Root-jflte-jfltexx-gti9505.tar.md5, don’t extract any further.
3. Download ODIN3 v3.07 from HERE. Unzip the file and save the folder on your PC.
4. Power off your Samsung Galaxy S4 completely.
5. Boot the SGS4 into Download Mode. This guide should teach you how to boot Download Mode for Samsung devices correctly.
6. Launch the Odin exe on your computer.
7. Now, connect your device with your PC using the USB Data cable.
   > wait for ODIN to confirm that the phone has been ‘added!!’ and then you can get to the next step.
   > in case Odin doesn’t recognize the smartphone, then you can try to change between USB ports or reinstall the Samsung USB drivers, a download link is listed in the preparation guide above.
8. Go to Odin window, click PDA button.
9. Now, find the ‘CF-Auto-Root-jflte-jfltexx-gti9505.tar.md5‘ file and load it into Odin.
   > don’t edit any default options of ODIN and make sure that the Re-Partition option is not enabled.
10. Whenever you’re ready, click the START button and wait for ODIN to complete the rooting process for your smartphone.
11. When the root is complete, ODIN will display the ‘Pass’ message and your Galaxy S4 will reboot.
12. Unplug the phone from computer when the Samsung logo animation appears.
13. Wait for it to boot into normal mode and that should be it.

• power off the phone completely and remove its battery.
• re-insert the battery after several seconds have passed.
• boot the device into Recovery Mode like this.
• select ‘wipe data/ factory reset’ option and confirm this process.
• get back to the first Recovery menu and select ‘reboot system now’.
• your Galaxy S4 will now boot into normal Android 4.1.2 Jelly Bean XXUBMEA mode.