Android 7.0 Update for Infinix Zero 4, Note 3, Note 3 Pro, S2 Pro, Hot S and Hot 4
How to update your Infinix smartphone using the T-Card method
The T-Card Method is one of the easiest ways to upgrade your smartphone.
Here is what you need;
T-Card Zip File
Micro-SD card with adequate space (at least 2GB)
Make sure your smartphone battery level is at least 80%
Copy the downloaded file to the root of the SD Card, i.e by root of the card I mean SD/Update.zip not SD/Newfolder/update.zip
You can use a PC to copy the files, or alternatively use ES File Explorer
Go to Settings> About Phone > System Update, then tap on the three small dots at the top right side and select ‘Update from Local’ and choose the t-card update you downloaded.