Most firmware for this device is installed using SP Flash Tool .
Ensure you install the MediaTek VCOM drivers first. If using Windows 8 or 10, you may need to disable driver signature enforcement .
The official teXet support page provides several software versions and necessary drivers:
Versions like MIUI v5 (Android 4.2.2) can be found in the teXet TM-4072 Custom ROMs thread . Brief Installation Tips
Always perform a backup of your current system and IMEI before flashing, as the process may involve a factory reset . teXet TM-4072 - Прошивка MIUI v5 (OS 4.2.2) - 4PDA