Tecno M3 of all tecno android phones is the easiest to root... It doesn't require a pc and with just 1 click you are good to go...
REQUIREMENTS:
First of all you must have known what rooting is before coming here.
You need Framaroot click here to download.
Root Checker from Play Store...
METHOD:
Having all these files installed open Framaroot.
Select what to install after the rooting select SuperSU instead of Superuser.
You will see a button that says Boromir now click on it...
After it has finish you need to reboot your device.
After booting you will see its updating system and you will see a New app inside called SuperSU...
Open Root Checker and click on verify root: If shown congratulations then your Tecno M3 is fully rooted...
TO UNROOT
Using the same Framaroot you can Unroot your device by selecting Unroot and click boromir...
NOTE!: Rooting your device void your warranty so use at your own risk...
