Here we provide Download Link of firmware for Huawei P20 Pro CLT-AL00 with build CLT-LGRP2-OVS 9.0.0.264
this Model of Huawei Published on Released 2018, April . with Android 8.1, up to Android 9.0; EMUI 9.
Display size on Huawei P20 Pro is 6.1" and the resolution is 1080x2240 pixels
in Here we provided all the stock firmware of Huawei CLT-AL00.
You can flash The Stock firmware of CLT-AL00 using How to Flash Huawei Stock Firmware (All Method).

Huawei P20 Pro CLT-AL00 Specification:

this model of huawei powerd by Octa-core (4x2.4 GHz Cortex-A73 & 4x1.8 GHz Cortex-A53) and the internal storage size and ram size is 256GB storage, no card slot.
also it can support No.
besides it can support Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by) .
the Gpu chip model is Mali-G72 MP12 and also the Chipset model used on this model is Hisilicon Kirin 970
The camera on the Huawei CLT-AL00 comes with 40 and support 2160p video pixles.


the Second camera module is 24 MP, f/2.0, 26mm (wide) and the body of Huawei P20 Pro CLT-AL00 is 180g, 7.8mm thickness
The battry type for this smartphone is Non-removable Li-Po 4000 mAh battery.

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Change Log: This update will roll back your phones operating system to Android 9.0 (EMUI 9.0). 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 encounter any issues during the update, please call the Huawei customer service hotline or visit a Huawei customer 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 theme.

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Notic: Please keep in mind that, you must flash Huawei P20 Pro (CLTAL00) 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.