Jio F220b diag port is not working, then you can solve the problem in this way. For flashing the Jio F220b, you have to pay attention to many important things. Only then you can flash the live keypad.
- First, replace the Loader file of new File to the old File.
- Loader File for Jio F220b is under folder Boot_images > Build > ms > bin > 8909 > emmc
- Copy all files from EMMC of the Latest File to the Old File.
To flash the Jio F220b you need a boot key. The boot key of all models of Jio keypad is different.
- use, the Old file to flash Jio F220b.
Jio F220b Press * and # key Then Connect Mobile to PC
With * and # key your mobile will go into flash mode. Then you can easily flash.