Last Updated on November 25, 2022 by Mathew Diekhake

You can download the Samsung SM-J100G firmware file using any of the available free Samsung firmware update tools. A firmware update tool downloads the firmware files from Samsung’s servers so you have the file yourself to flash with Odin. All you need is your smartphone’s region and model number. And depending on the tool, you may not even need that much as sometimes there is an auto-detect button capable of automatically detecting which smartphone it is you have.