How to Update Samsung Galaxy S3 SGH-I747M (Canada) to Official Jelly Bean I747MVLDLK4 if Rooted/Custom Recovery

 Here's how to manually update the Samsung Galaxy S3 SGH-I747M Canadian variants if currently runs with rooted and installed custom recoveries like CWM and TWRP. If the device runs with custom recovery, it happens that it will no longer receives any official OTA updates. So, the only way you can upgrade your Galaxy S3 to official Android 4.1.1 Jelly Bean build I747MVLDLK4 is thru manual flashing. There are few optional method you can choose, either save and do not removed your root and you want just an official unrooted stock re-root again if you want to.

DISCLAIMER: use of this guide is solely at your own risk! I am not responsible if somehow you brick your device.

Method A: If you are already rooted with previous ICS version, just download Voodoo OTA Root Keeper and then choose backup root, then temporarily unroot. Update your device via OTA, then restore root using Voodoo.

Method B: Flash the new Jelly Bean I747MVLDLK4 update via Odin, not through kies or OTA for it will just take you onto failure.
-  Download and unzip the I747MVLDLK4 Jelly bean Stock ROM:  You need to end up with a .tar.md5 file.
Bell – BMC_I747MVLDLK4_I747MOYCDLK4
Telus – TLS_I747MVLDLK4_I747MOYBDLK4
Rogers – RWC_I747MVLDLK4_I747MOYADLK4
Sasktel – BWA_I747MVLALH1_I747MOYCALH1

- Download and install USB driver:

• Install USB Driver download
• Grab Odin downloader Odin3_v3.07

- Run Odin downloader tool. Make sure Repartition is NOT checked
- Click the PDA button, then select and load the tar.md5
- Boot your phone in download mode (turn off phone, then hold Volume Down+Home+Power) it asks you to press a Volume UP button to continue. Then you will be taken onto Download Mode screen.
-  Connect the phone to your computer with USB.
- Click the Start button
- Wait until it finishes flashing and completely boot-up.

If you just need an official firmware and no plans of rooting again then you just stop here.

How to root Jelly Bean I747MVLDLK4
Option 1: Root without binary flash counter tripping
For safe root without compromising the binary flash counter that voids warranty follow this guide here.

Option 2: Install Root via Custom recovery
1. Flashed recovery via Odin
2. Rebooted and copied Superuser.zip to my phone
3. Rebooted into recovery and installed the zip.
http://forum.xda-developers.com/showthread.php?t=2026622

Option 3: Flash the CF-Auto Root.
1. Flash JB 4.1 through Odin...
2. Flash CF-Auto-Root-d2can-d2vl-sghi747m.tar through Odin
3. Reboot in recovery and install SuperUser.zip
 http://forum.xda-developers.com/showthread.php?t=1963790