Samsung Galaxy S 4 (Canada) (SGH-I337M) Firmware Overview
What is the latest SGH-I337M firmware?
I337MUMSGPL1, released December 30, 2016 for region TTT with Android 5.0.1. The archive holds 2 official builds for this region.
Is the Samsung Galaxy S 4 (Canada) still getting updates?
Most likely not: there has been no new firmware since December 2016, so Android 5.0.1 is the last version this model got. The final builds below are still the best choice for a clean reinstall.
SGH-I337M firmware for region TTT
How to Flash SGH-I337M Firmware
Put the Samsung Galaxy S 4 (Canada) into Download Mode, load the BL, AP, CP and CSC files into Odin on a Windows PC and press Start. Use HOME_CSC to keep your data, CSC for a full wipe.