here is poot tecno N3 rooting file

1: install poot on ur tecno n3 make sure u have internet on ur n3

https://www.dropbox.com/s/ji07uxexez2ppbp/Poot-debug-tecno%2Bn3.apk?m

2: open poot and allow it to run on ur n3
3: it will ask to install ministro from playstore allow it to do so by it self but it will take some minute to do the running
4: after it finish installing ministro then open poot again and u will see two option click on the first one. this stage it depends on ur luck coz it wont root ones like that u will keep on trying it until it will show u three option the will be (click to install super user) just click on it and u will see super user in ur phone.
4: install root check from playstore then run it and it will show that congratulation ur device is rooted