OK, it's high time we stop buying fake stuffs
before you purchase techno phone of battery
log on to http://gc.tecno-mobile.com
input the Imei
if it's says original, you good to go otherwise it's fake
for battery, get the serial number and shikina.
source
https://www.mrjef.com/how-to-detect-fake-tecno-phones-and-batteries-right-way/

This is quite useful.

Nice stuff from Tecno. Used it to confirm a phone's authenticity and it is true. Other brands can emulate this too.

Behankey:
This is quite useful.

Very useful. You can check if the phone is original or fake from point of purchase.

Freelancerx:
Very useful. You can check if the phone is original or fake from point of purchase.

Yes. And this should reduce the number of fake tecno phones and also strengthen customer belief in the brand.

This is very good and important
A lot fake phones spoiling market for Tecno out there.

Good one!