Hold the button and connect the phone to your PC via a USB cable.
Download an ARM64 A/B GSI ROM (such as LineageOS or Pixel Experience) from trusted developer communities like the XDA Developers forum.
Huawei stopped issuing unlock codes after May 2018. Your options:
Huawei Mate 20 Pro Go to product viewer dialog for this item. huawei mate 20 pro rom
The Huawei Mate 20 Pro was a pioneer of its time—featuring the first 7nm chipset (Kirin 980) and incredible photography. Even in 2026, many enthusiasts still use it for its stellar hardware. However, if you are looking to refresh its software with a custom ROM, there are significant hurdles to clear. The Reality of Custom ROMs on Huawei
is largely considered "end-of-life" for major official updates The Custom ROM Challenge Unlike many other Android flagships, the Huawei Mate 20 Pro
: Install the latest Huawei USB drivers or HiSuite to ensure your PC recognizes the device. Hold the button and connect the phone to
’s story is not just one of superior hardware, but also of a robust software and storage configuration that enabled long-term usability. With its combination of EMUI’s tailored features, generous internal storage, and the unique NM card expansion, the Mate 20 Pro
Huawei Mate 20 Pro (model LYA-L29/LYA-L09) remains a legendary device in the Android community due to its Kirin 980 chipset and triple Leica camera system. However, when it comes to ROMs (Read-Only Memory), the experience is sharply divided between official EMUI/HarmonyOS updates and the challenging world of Custom ROMs Official Software: EMUI & HarmonyOS
If you cannot unlock the bootloader, you can still "develop" features using Developer Options to simulate a different system feel: Animation Scaling Settings > System & updates > About phone Build number Your options: Huawei Mate 20 Pro Go to
I can provide the exact files or specific guides tailored to your variant! Share public link
As mentioned, your bootloader must status show as PHONE Unlocked in Fastboot mode. Step-by-Step Guide to Flashing a GSI ROM on Mate 20 Pro
, the path to a non-EMUI operating system relies almost completely on Project Treble. Project Treble decouples the core Android operating system framework from the low-level vendor hardware drivers.
In 2018, Huawei officially stopped providing bootloader unlock codes. Unlocking the bootloader is a mandatory prerequisite for flashing custom recoveries (like TWRP) and custom ROMs.
