[Oke Teminijesu Isreal]

How do I root Tecno Pouvoir 2 air (LB6)?

[X3non]

How do I root Tecno Pouvoir 2 air (LB6)?

do you have the firmware or stock rom backup for your LB6 build number?

[Oke Teminijesu Isreal]

Yes I have the firmware downloaded on my laptop

[Oke Teminijesu Isreal]

How do I root Tecno Pouvoir 2 air (LB6)?

do you have the firmware or stock rom backup for your LB6 build number?

Yes. I have the firmware downloaded to my system.

[Noblex]

You have to root with magisk manager using your phone ROM bot.img

[Oke Teminijesu Isreal]

You have to  root with magisk manager using your phone ROM bot.img

How do I do that?

[Noblex]

You have to  root with magisk manager using your phone ROM bot.img

How do I do that?

Refer to this thread https://www.hovatek.com/forum/thread-21427.html

[X3non]

How do I do that?

if the firmware you downloaded matches the exact build number of your phone, then see the link @noblex's reply

[Oke Teminijesu Isreal]

It does. I've tried it several times and, showing up an error.
Img file not a boot image kind of error

[X3non]

It does. I've tried it several times and, showing up an error.
Img file not a boot image kind of error

attach a screenshot of the error message here