[mhakash16]

Hi,  Thanks to the team for doing this Helpful Tech support.
There is no TWRP and Custom ron available in internet for my Tecno Spark 4 air. 
Can you please help me?

[xerxes]

Hi,  Thanks to the team for doing this Helpful Tech support.
There is no TWRP and Custom ron available in internet for my Tecno Spark 4 air. 
Can you please help me?

you can port TWRP using the tool @ https://www.hovatek.com/forum/thread-21839.html , for custom ROM you’ll need to search online yourself or manually port. At Hovatek we don’t collect links to Custom ROMs.

[freshtyt]

Hi,  Thanks to the team for doing this Helpful Tech support.
There is no TWRP and Custom ron available in internet for my Tecno Spark 4 air. 
Can you please help me?

your device should support project treble, so for custom roms you can search for GSI and try your luck