If you are unable to update your device with the Over The Air(OTA) Update, then the next safest and easiest alternative is to update via the Tcard Version. Aside been easy and safe, you don't need a PC to perform an OTA Update.
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So for all those who who have been avoiding upgrading their phone with sp flash tool probably due to fear of bricking their device in the process and maybe you just don't have access to a PC or you just not receiving an Over The Air(OTA) Update on your phone, the this post will really be of help.

How To Upgrade Via Tcard Update Version
=> Copy the already downloaded Tcard Version of your Rom into your sdcard.(don't put it inside any folder).
=> Press the menu button to access the app drawer.



=> Click on the "System Update" icon to open.


=> Click on the three dot at the top right corner of the screen to access more option and select "update from local option".



=> Select the Tcard Version update which you copied to your sdcard.



=> Then click on install.


=> Your device will reboot automatically and the upgrade will commence afterwards.
That's all guys.
If you have any question, feel free to ask and don't forget to share this post.

Source: http://www.yomitech.com/2016/08/how-to-upgrade-your-your-infinix-tecno.html

Nice one Bro, but where can we get the files?

Does it work on kitkat tecno phones?tecnos system update doesn't have options for installing from sd

I'd like to do dis 4 my infinix zero but where do I get d update file?

HDoc:
I'd like to do dis 4 my infinix zero but where do I get d update file?

Infinixmobility.com

Can this work on infinix hot note? 4.4