You can't install any OTA updates if you have any custom recovery installed. So If you want to install any OTA update you should first install stock recovery. (You have to unroot your device too)
In this video, I've to show How you can install stock recovery on your Lenovo K4 note.
- Lenovo K4 Note: Rooted
- Android Version: 6.0
- Stock Rom
- Download Stock Recovery.Zip - Click Here
- SP Flash Tool - Click Here
