This official stock ROM for the ZTE Q505T is based on Android 4.3. The firmware is stable and works very smooth for everyday use.
Download the flash file from below and follow the instructions provided to learn how to install it. Please be sure that you are installing this firmware on ZTE Q505T, as flashing it on a different device will result in a brick.
- ZTE Q505T Update – Download
How to flash ZTE Q505T
Please click here and proceed with the flashing instructions made available on that page.