Here we provide Download Link of firmware for Huawei Y9 (2019) JKM-L21 with build JKM-L21 1.0.0.29 Board Software General 8.1.0 R1 EMUI 8.2
this Model of Huawei Published on Released 2018, October . with Android 8.1; EMUI 8.2.
Display size on Huawei Y9 (2019) is 6.5" and the resolution is 1080x2340 pixels
in Here we provided all the stock firmware of Huawei JKM-L21.
You can flash The Stock firmware of JKM-L21 using How to Flash Huawei Stock Firmware (All Method).

Huawei Y9 (2019) JKM-L21 Specification:

this model of huawei powerd by Octa-core (4x2.2 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53) and the internal storage size and ram size is 128GB storage, microSD card slot.
also it can support microSD, up to 400 GB.
besides it can support Dual SIM (Nano-SIM, dual stand-by) .
the Gpu chip model is Mali-G51 MP4 and also the Chipset model used on this model is Hisilicon Kirin 710
The camera on the Huawei JKM-L21 comes with 16 and support 1080p video pixles.


the Second camera module is 13 MP, f/1.8
2 MP, f/2.4, depth sensor and the body of Huawei Y9 (2019) JKM-L21 is 173g, 8.1mm thickness
The battry type for this smartphone is Non-removable Li-Ion 4000 mAh battery.

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Change Log: This update will roll back your phones operating system to Android 9 (EMUI 9.0.1). 1. Please make sure you are currently using the official version of Huawei EMUI, and that no unofficial updates have been installed. Otherwise, there will be risk of an unsuccessful rollback, and an unknown error may occur. 2. Make sure that the current version has not been unlocked or rooted. 3. All user data will be deleted in the rollback. Use an SD card, computer, or Cloud storage to back up all important data before rolling back your phone, and make sure all backed up content is complete and effective. 4. Make sure your phone has more than 50% battery remaining. 5. If you experience any issues during the update, please call the Huawei customer service hotline or visit an authorized Huawei service center for assistance. 6. The system will restart after the rollback. This will take about 10 minutes. Following the update, your home screen will automatically display the EMUI 9.0.1 theme.

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Notic: Please keep in mind that, you must flash Huawei Y9 2019 (JKML21) firmware at your own risk and also full responsible with you.

Please be informed that Huawei-firmware.com only share the official firmware WITHOUT ANY modifications. All Huawei Roms here are for home or personal use only.