This official firmware for Telc-73GIQ is a pac flash file that can be easily flashed via Research Download Tool or cm2spd.
Download from the link below and folow flashing instructions at the end of this post for easy installation.
Downloads
File Name: TELC-73GIQ add Netflix K03_SWKNEW_USER_2SIM_64+8_1+8_201603011612.zip
Size: 350 MB
Firmware Link – Download or Mega or Google Drive
How to flash
Click here to learn how to flash PAC firmware packages and view download link for the tool.