, which is based on Android 10 but features a refreshed interface similar to HarmonyOS. HarmonyOS 4.2 (China): In mainland China, the P40 Pro has been updated to HarmonyOS 4.2

: Without an unlocked bootloader, you cannot flash a custom recovery (like TWRP) or a custom ROM. Huawei's Kirin 990 chipset is notoriously difficult to "exploit" for free bootloader unlocking. Third-Party Services : Some paid services (like Ministry of Solutions Global Unlocking

"Bugs" are common, specifically with the in-display fingerprint sensor and face unlock. Benefits of Flashing a Custom ROM

The only working methods involve:

Project Treble allows the P40 Pro to run a Generic System Image (GSI). You can flash a vanilla Android 13 or 14 GSI (like LineageOS GSI or crDroid GSI).