After downloading this firmware package, flash only on Myphone MyT1 DTV. This is the official stock ROM of MyT1 DTV and it is shared here as is.
Research Download & Upgrade Tool is required to flash this firmware. Download from the link below and follow flashing instructions to install the ROM.
How to flash MyPhone MyT1 DTV
Click here to download Research Download & Upgrade tool, and learn how to use the tool.