EliteROM is one of the few names in the Huawei custom scene. It takes stock EMUI 11 or 12, debloats it, integrates Magisk (root) pre-installed, and patches the kernel to allow GMS to run as system apps.
Step 1: Backup Your Data Flashing wipes everything. Use Huawei Backup to an external USB-C drive.
Step 2: Unlock the Bootloader (Paid)
Use DC-Unlocker. Install the client, connect the phone in fastboot mode, pay for credits, and retrieve the unlock code. Command: fastboot oem unlock [YOUR_CODE]
Step 3: Flash Custom Recovery
fastboot flash recovery_ramdisk twrp.img Custom Rom For Huawei P40 Pro
Step 4: Boot into TWRP & Wipe Power off. Hold Volume Up + Power. In TWRP, wipe Dalvik, Cache, System, Data. (Never wipe Vendor or Product).
Step 5: Flash the ROM
Step 6: Format Data This is critical. Go to Wipe > Format Data > type "yes". This decrypts the partition. Failure to do this results in a bootloop. EliteROM is one of the few names in the Huawei custom scene
Step 7: Reboot The first boot takes 5–10 minutes.
Custom ROMs on Huawei devices are community-driven and may have imperfections. Common issues on P40 Pro ROMs include:
Some developers have ported HarmonyOS 2.0/3.0 from the Chinese variant to the Global P40 Pro, then added a "GMS wrapper" layer. These ROMs are visually different (iOS-like notification shade) but perform well. Step 6: Format Data This is critical
With Huawei pushing HarmonyOS Next (a pure microkernel OS that drops Android compatibility entirely), the custom ROM scene for the P40 Pro will eventually die. No developer will port Android 15 to a device whose manufacturer is actively moving away from AOSP.
If you plan to keep your P40 Pro for 2+ years, your realistic options are:
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).