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How to Root and flash Custom Recovery to Samsung Galaxy S3

Rooting and Flash Custom Recovery for Samsung Galaxy S3 Main Picture

 

How to Root using CF-Autoroot (Chainfire)

PERFORM AT YOUR OWN RISK
* Rooting your device will make your Knox counter to 0x1, therefore it will void your warranty.
Requirements:
4. USB Cable
5. PC
6. Samsung Galaxy S3
Procedures:
1. Download the CF-Autoroot for your specific model number (Settings->About Device->Model Number
2. Extract the downloaded zip file
3. Run Odin as Administrator
4. Click AP and choose the CF-Autoroot file. It must be a MD5 file
5. Turn off your phone and go to Download Mode (Volume Down + Power Key + Home Button) then hit Volume Up
6. Plug your device in Computer. The Odin must recognize your device. Be sure that the box below the ID COM is color yellow or blue. If Odin didn’t recognize your device kindly install Samsung USB Driver.
7. Press the Start button
8. Once Odin says Pass you can already remove the plug.
9. You’re DONE! Goodluck!

How to flash PhilZ Touch Recovery

PERFORM AT YOUR OWN RISK
* Flashing PhilZ Touch Recovery will make your Knox counter to 0x1, therefore it will void your warranty.
* You can flash PhilZ Touch without rooting but it’s better to be rooted first.
Requirements:
Procedures:
If you are coming from ClockWorkMod (CWM):
1.  Download the PhilZ Touch zip file for your specific variant.
2.  Place the file on your in your internal or external sd card.
3.  Boot into recovery (Volume Up + Power + Home)
4.  Select the Install Zip from sd card
5   Browse to the location of the PhilZ Touch zip file and select it.
6.  You will have the PhilZ Touch Recovery after the installation.
If you want to use Odin:
1. Download the PhilZ Touch tar.md5 file for your specific variant.
2. Place the file on your in your internal or external sd card.
3. Enable USB Debugging (Settings > General > Developer Options)
*If Developer Option is hidden go to Settings > General > About Device > Tap the Build Number at least 7 times.
4. Reactivation Lock must be OFF (Settings > General > Security)
5. Boot into Download Mode (Volume Down + Power + Home and hit Volume Up when you see the Warning)
6. Run Odin as Administrator then click AP/PDA and select the tar.md5 file of Odin.
7. Plug your device in Computer. The Odin must recognize your device. Be sure that the box below the ID COM is color yellow or blue. If the Odin didn’t recognize your device kindly install Samsung USB Driver.
8. Press the Start button
9. Once Odin says Pass you can already remove the plug.
10. You’re DONE! 🙂
Flash TWRP recovery
Requirements:
flashify.apk 
TWRP 2.8.6.1Note: For S3 version  GT-i9300 only

Procedure:
Step 1. download all required files and put it in your sd card.
Step 2. download flashify then open if root permission is asked grant it.
Step 3. choose recovery to flash and locate the recovery.img.
Step 4. wait for the flashify to finish flashing it then reboot.
Step 5. after booting into stock recovery , choose apply update from external storage and locate the update.zip .
Step 6. you will boot into the TWRP recovery and create a backup , and done
Credits:
 Aldrich Delos Santos
Samsung S3 group
XDA

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