If You follow the steps giving in this post Rooting your Tecno W3 will be a very easy and simple thing to do. The Tecno W3 run one of the latest OS Android 6.0 Marshmallow, Rooting the Android 6.0 marshmallow is not an easy thing to do because of google google latest security upgrades, all thanks to hovatek though for making this posible.
Materials required For Rooting Tecno W3
» PC with internet connection
» USB Cable
» SP Flash Tool - Download it Here
» SuperSU v2.66.zip - Download it Here
» TWRP for Tecno W3 - Download it Here
How to Root tecno W3
1. First of all Save or copy the SuperSU.zip that you just downloaded to your phone's SD card internal storage
2. Next Now switch off the Mobile phone
3. Next flash the TWRP recovery image to the phone using this SP Flash tool guide
4. Next step Now boot your Mobile phone into TWRP Recovery Mode By holding the Volume up button and Power button simultaneously for 5 seconds.
5. If you get a prompt asking you to swipe to allow TWRP modify the system partition then go proceed and swipe. To swipe, place your finger on the green circle then slide it to the right side
6. In TWRP recovery, tap Install
7. Navigate to the location of the SuperSU.zip and select it
8. Swipe to confirm flashing of SuperSU.zip and wait till flashing is done
9. Restart your mobile phone normally
You can confirm Root access by installing and running Root Checker.
That’s all on how to root Tecno W3, I hope it works for you. we love comment a lot so do not forget to tell us The method you use to root your W3 phone.