How can I update Huawei Honor 4C I need  Android 6.0 Marshmallow Firmware B067 Huawei Honor 4C (CHM-U01)

For this device: Huawei HONOR 4C, Model number: CHM-U01, Build number: CHM-U01 V100R001C185B067, CPU: Octa-core 1.2GHz, RAM: 2.0GB, Internal storage: 8GB, Android version: 4.4.2, Kernel version: 3.10.49-g3a7cb5a android@localhost #1 Wed Apr 15 17:28:55 CST 2015, EMU version: EMUI 3.0.

When I try to update the system I get this message "No updates", but the official website has the updates but it does not compatible with the device.
You can find Honor 4C downloads on CarbonTesla's Huawei Honor 4C Firmware &amp; OTA page; according to your build number (C185B067) your device seems to be pakistan or Middle-East region. Follow up the link to the corresponding download section there, where you will find the files to download and a short instruction on how to proceed. According to that page, the firmware offered is Android 6.0 Marshmallow with EMUI v4.0, for the CHM-U01 as specified by you.

good luck..........