HUAWEI CHM-U01 HONOR 4C MARSHMALLOW UPDATE
Firmware - B530
OS - Android 6.0 Marshmallow
UI - EMUI 4.0
Steps:-
1.Download the package.
2.Extract it.
3.Select the folder named 'dload' and paste in your SD card.
4.In update select local update and perform update.
5.You are done.
Download link - click here