For those of you who have been asking me constantly on Facebook, Twitter, GooglePlus, and e-mail for unrooting method on your Canadian Galaxy S3 SGH-I747M, I have some good news for you, the stock ROMs for SGH-i747M are now available for download. These are completely official stock ROMs and you can flash them using ODIN or Mobile ODIN.
Download Stock ROM for Telus SGH-i747M
Download Stock ROM for Sasktel SGH-i747M
If you don’t know how to install these stock ROMs, please refer to the AT&T Galaxy S3 Unroot Guide. The unroot steps are nearly identical except the different stock ROM tar.md5 file.