Are you one of those with infinix hot (X507) or infinix hot note pro (X551) still waiting for the android 5.1 Lollipop update, "the wait is over" here is a trick for you to get that update using OTA.
Why you can't get the update using OTA is that your build number is below 0730. So all you need to do is to update your device to the latest build using the ROM below
Thanks to infinixmobility for this ROM
To download this ROM, Click (tick) the .rar file before you click the small download arrow.
For infinix hot X507
Download lollipop ROM from here
For infinix hot note pro X551(32GB version only)
Download lollipop ROM from here
Flash the ROMs from above using SP Flash Tool
learn how to use SP Flash Tool from hereNote
before clicking Download on SP Flash Tool, Select Firmware Upgrade from the drop down menu as shown on the picture below.
After flashing your phone with the ROM above, Goto Phones settings >> About >> System update
Tap Check for updates
Download and install
ADS HERE !!!