I have a T-mobile Galaxy S7. Has been the best phone I have owned while it was on Marshmallow. But I also love updates, so I let the phone update last month to Android 7.0 Nougat. I could put my list of issues and complaints here, but the point is that I have tried for weeks now to make my life work with 7.0, but the SD card issue is driving me nuts to the point that I can't take it anymore. I will get new pictures either from download or the camera onto my SD card and the same day some of them will not load. I can't risk losing photos before I can even back them up the same day.
I contacted T-Mobile and they said that only Samsung has the control to allow a downgrade. That T-mobile has nothing to do with it.
So how can I get Android 6.0.1 stock T-mobile firmware back on my phone? I can backup everything.
Download the latest odin from a reputable or good site.. like XDA-developers.. I think that one I've used is 3.11.1
there are two files
Odin3.ini
Odin3_v3.11.1.exe
I've used the CSC_TMB_G935TTMB4APK1_CL9507190_QB11413830_REV02_user_low_ship_MULTI_CERT.tar.md5 file instead of HOME_CSC_TMB_G935TTMB4APK1_CL9507190_QB11413830_REV02_user_low_ship_MULTI_CERT.tar
This will completely wipe the phone.. The MAIN Important thing is not to click on any check box or any settings on ODIN.. else you can easily brick the phone.
where can i download the Marshmallow software? i really need it as the update has been draining my battery like hell and i cant even use the phone anymore.
