Huawei Mate 9 MHA-L29 android 9 firmware update is now available for Asian variants.  The firmware version is 178. This update is only applicable to phones with cust version C636. Android 9 is running EMUI9 on top. This is official stock firmware from Huawei and can be installed by following the official method. You can either use sd card/OTG to install it or any 3rd party tool can be used. This firmware can help unbrick your phone.

Firmware Details:

• Android Version: 9.0
• EMUI Version: EMUI 9
• Build Number: MHA-L29B 9.0.1.178(C636E7R1P8T8)
• Supported Model: MHA-L29C636 (Asia Pacific)
• Update Type: Official Stock Firmware
• Download Link: Click Here
• Password=ministryofsolutions.com

Installation Guide:

• Backup all important data from phone
• Charge battery up to 60%
• Get a micro sd card with 6GB free space
• Extract downloaded firmware zip file (password: ministryofsolutions.com)
• Then copy dload folder to your sd card
• Then power off phone and disconnect from pc. Hold volume up,volume down and power, keep holding until update start.

Note: Everything you do at your responsibility, this guide is provided for free without any guarantee.