If you are determined to install a custom ROM, you must first bypass the locked bootloader.
Copy the entire dload folder directly to the root directory of your USB OTG flash drive or NM card. Step 4: Trigger the Force Upgrade Mode Power off your Huawei Mate 20 Pro completely. Connect the USB OTG drive or insert the NM card.
Unlike many other Android devices, Huawei does not officially support bootloader unlocking.
Before attempting high-risk modifications, ensure your device is on the latest official firmware.
If your Mate 20 Pro has an unlocked bootloader, install . It turns this 6-year-old phone into a smooth, up-to-date daily driver. Don't sell the Mate 20 Pro – ROM it. huawei mate 20 pro rom
The most stable AOSP experience.
Android architectures that allow a single system image (like LineageOS, Pixel Experience, or Evolution X GSIs) to run on various hardware.
: Install the latest Huawei USB drivers or HiSuite to ensure your PC recognizes the device.
If you have installed TWRP, you can boot into it (by pressing Power + Volume Up while disconnected from the PC) and perform a factory reset from there. Some ROMs may also require you to resize the system partition using the recovery's "Advanced Wipe" options. If you are determined to install a custom
The Lasting Legacy of the Huawei Mate 20 Pro : A Software and Storage Perspective Released in late 2018, the Huawei Mate 20 Pro
The story of the Huawei Mate 20 Pro and its software (ROM) is a tale of a device that peaked just as the geopolitical landscape for its manufacturer shifted forever. Launched in late 2018, it was widely hailed as one of the most innovative Android phones ever made, offering a glimpse into a future that was ultimately cut short for international users. The Peak of EMUI Mate 20 Pro arrived, it debuted with
: You must use paid services (like PotatoNV, HCUT, or Ministry of Bootloader) to obtain a bootloader unlock code.
The Ultimate Guide to Huawei Mate 20 Pro ROMs: Revive Your Flagship Connect the USB OTG drive or insert the NM card
: Global variants typically run EMUI 12 . While monthly updates have largely ceased for these models, occasional "year-end" security maintenance updates (like version 12.0.0.170) were still being observed as late as 2024.
The Mate 20 Pro has transitioned from Android-based EMUI to HarmonyOS in select markets, significantly extending its lifecycle.
Rename your downloaded GSI image file to system.img for convenience. In the terminal, execute: fastboot flash system system.img Use code with caution.
: Unlocking the bootloader and flashing a ROM will completely wipe your internal storage. Step-by-Step GSI Installation Guide
Because the Mate 20 Pro features highly specialized proprietary hardware, switching to a non-EMUI custom ROM introduces a few compromises:
Aftermarket firmware like LineageOS, which require a paid third-party bootloader unlock. 1. Official Stock ROM: Download & Installation