hmmm. weird. I used this instruction along with the link posted
1- Boot into recovery.
2- wipe all data.
3- boot into system partition one
4- install stock into System 2 using Updater
5- Put stock JLB into root of sdcard and rename it update.zip
6- reboot to recovery and wipe all data
7-...
Tmobile USA For sure will not work on 3G because it is different frequency (1700/2100) the Mi does not support 1700Mhz. AT&T is what I am worry about, do you by anyc hance have the LTE sim card?
On my GSIII AT&T the incall volume is extremely loud and I have turned the volume down to its lowest. Running the 2.9.29 FW. Anyone have any idea how to resolve this? Thanks