Thanks Meter 38
Join Date: Apr 2012
Location: Mifflinburg, PA
Originally Posted by xXFl4sh
I am thinking to flash a 4.4 ROM on my S3 I747M. The only thing I am worried about the bootloader. If I flash the latest boot loader can I downgrade it?
Here a scenario
I am on 4.4 kitkat,with the latest bootloader,and I decide to go back to 4.2.2 with the latest bootloader. Is it possible to do that?
What carrier do you use? If AT&T is it the MJB bootloader.
You can check what bootloader you having using this - https://play.google.com/store/apps/d...s.root_checker
If you are on AT&T with the MJB bootloader you CANNOT downgrade the bootloader. It will brick the phone. My guess is that you could possible run a 4.2.2 ROM with the MJB bootloader. I have run 4.3 and 4.4 on the MG2 bootloader with no problem but haven't tried to run a 4.2.2 on the MJB bootloader. As long as the 4.2.2 ROM doesn't flash a bootloader, I would try it. But that's me. Just back sure to have a current backup. If there are any doubts about the 4.2.2 ROM flashing a bootloader, don't do it if on MJB.
Hit the thanks button if anything I said helped you. -
My Devices -
Motorola Droid Milestone - Retired
Samsung Captivate SGH-I897 - Retired
Samsung Galaxy S3 AT&T I747 - Quantum 3.36
- Daily Driver on MJB bootloader and MJB modem - StraightTalk
Samsung ATIV S Neo AT&T I187 - Windows Phone 8.1 Dev. Preview - StraightTalk
Samsung Galaxy S3 AT&T I747 - Was my play phone on MJB bootloader and modem - Retired
ASUS Transformer Prime TF201 - running rooted stock 4.1.1