Huawei spends millions on display calibration. AOSP does not. Colors will look washed out or over-saturated with no manual tuning.
The only consistently maintained source for GSI (Generic System Images) that work decently on the P40 Pro is OpenKirin (specifically their ElevenOS or TrebleDroid builds).
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Not Working / Broken:
How to install (Simplified):
Installing a custom ROM on the Huawei P40 Pro is a complex process due to Huawei’s strict security measures. Since July 2018, Huawei has officially stopped providing bootloader unlock codes, which is the primary barrier to flashing third-party software. The State of Custom ROMs for Huawei P40 Pro
Bootloader Status: Unlocking the bootloader is mandatory for installing custom ROMs. While official codes are unavailable, some users utilize third-party tools like DC Unlocker or specialized online services to obtain codes for a fee.
Availability: Due to the hardware-specific Kirin 990 chipset and the locked bootloader, development for traditional custom ROMs (like LineageOS) is limited compared to Snapdragon devices. Most community development focuses on system modifications or rebranding rather than full OS replacements.
OpenKirin Project: For many Huawei devices, the OpenKirin Project provides AOSP-based ROMs like LineageOS, Resurrection Remix, and CarbonROM, though compatibility often depends on specific firmware versions. Popular Alternatives & Modifications
Because full custom ROMs are difficult to install, many users opt for these alternatives to enhance their experience:
HarmonyOS Rebranding: Users outside China often "rebrand" their global P40 Pro (EMUI) to the Chinese version to receive HarmonyOS updates. This provides a more modern UI and better performance in some cases.
Native Google Mobile Services (GMS): A common goal of "modding" the P40 Pro is restoring Google apps. This typically involves downgrading to EMUI 10.1 and using tools like Googlefier before updating back to a later version.
Debloating EMUI: For those who cannot unlock their bootloader, "debloating" via ADB (Android Debug Bridge) is a safer way to remove unwanted system apps and improve battery life. Risks and Considerations Huawei P40 Pro in 2025 (harmony os, google, etc)
The Paradox of Liberty: Custom ROMs on the Huawei P40 Pro The quest for a custom ROM on the Huawei P40 Pro is a journey marked more by historical barriers than by technical triumphs. While the device remains a marvel of 2020 flagship engineering—boasting the Kirin 990 5G chipset and a legendary Leica camera system—it stands as a fortress against the very "Android freedom" that custom ROM enthusiasts cherish. The Unbreakable Gate: Bootloader Restrictions
The primary obstacle to any custom ROM installation is the locked bootloader. In July 2018, Huawei permanently terminated its official bootloader unlock code service. For the P40 Pro, this means there is no manufacturer-sanctioned way to bypass the stock security. While some third-party paid services occasionally claim to provide codes, these are often unreliable or inapplicable to newer Kirin chipsets like the one found in the P40 Pro. The Software Landscape: EMUI vs. HarmonyOS
Without the ability to flash a traditional custom ROM (like LineageOS), users have pivoted toward "rebranding" and software manipulation rather than full system replacement.
Huawei P40 Pro Complete Guide To Install Native Google / GMS
Finding a custom ROM for the Huawei P40 Pro in 2026 is a unique challenge because Huawei officially stopped providing bootloader unlock codes in 2018. While the hardware remains flagship-tier with its Kirin 990 5G chip and elite camera system, the software ecosystem is heavily locked down.
Instead of traditional custom ROMs like LineageOS, most P40 Pro enthusiasts now focus on rebranding to HarmonyOS or using advanced workarounds to restore Google services. The State of Custom ROMs for P40 Pro
Unlike devices from Xiaomi or Google, there is no vibrant "custom ROM" scene for the P40 Pro because developers cannot easily access the bootloader.
Official Support: There are no official builds of popular ROMs like Evolution X or LineageOS for this specific device. Custom Rom For Huawei P40 Pro
Bootloader Status: Unlocking the bootloader typically requires third-party paid services or "test point" methods that involve opening the phone—neither of which is supported by Huawei.
The "Dark Web" Myth: While some forum users mention "dark web" ROMs, these are often just unverified experimental builds that carry high security risks. Top Alternatives: HarmonyOS and Google Services
Since traditional ROMs are largely unavailable, users have shifted to these high-impact software mods: 1. Converting to HarmonyOS (Rebranding)
Many global users convert their P40 Pro (ELS-NX9) to the Chinese version (ELS-AN00) to install HarmonyOS 4.2.
Why do it? HarmonyOS offers better performance, smoother animations, and more frequent updates than the global EMUI 12/14.
The Process: This usually involves using HiSuite Proxy to downgrade firmware to a specific version (like EMUI 10.1.0.131) before flashing the Chinese base. 2. Installing Google Mobile Services (GMS)
Because the P40 Pro launched without Google, the most sought-after "mod" is getting the Play Store to work.
Native GMS: Requires a specific downgrade to EMUI 10 followed by the "Googlefier" or "LZ Play" method.
MicroG: A modern, less invasive alternative that allows many Google apps and notifications to work on newer EMUI or HarmonyOS builds without full system modification. Huawei P40 Pro in 2025 (harmony os, google, etc)
The Huawei P40 Pro is a masterpiece of mobile engineering, boasting a Kirin 990 5G chipset and a legendary Leica camera system. However, for many users, the absence of Google Mobile Services (GMS) and the limitations of EMUI are significant hurdles. Installing a custom ROM can breathe new life into this hardware, offering a cleaner interface, better privacy controls, and sometimes, a gateway to Google apps.
This guide explores the current landscape of custom ROMs for the Huawei P40 Pro, the technical challenges involved, and how to decide if modding is right for you. The Elephant in the Room: The Locked Bootloader
Before diving into ROM selection, it is vital to understand the primary obstacle: Huawei stopped providing official bootloader unlock codes in 2018.
Bootloader Status: Most P40 Pro units ship with a locked bootloader.
Third-Party Services: To install a custom ROM, you must use paid third-party tools (like Ministry of Solutions or DC-Unlocker) or hardware test-point methods to unlock the device.
Risk Factor: Unlocking and flashing carries a high risk of bricking your device and voids your warranty. Top Custom ROM Options for Huawei P40 Pro
While the development scene for Kirin processors is smaller than for Snapdragon devices, several high-quality projects exist. 1. HarmonyOS (The Official "Custom" Path)
While technically an official OS, many global users "rebrand" their EMUI devices to the Chinese HarmonyOS version.
Pros: Better performance, smoother animations, and frequent security updates.
Cons: Still lacks native GMS; includes Chinese bloatware that requires debloating. 2. LineageOS (Unofficial Ports)
LineageOS is the gold standard for clean, bloat-free Android. Huawei spends millions on display calibration
Pros: Extremely lightweight, privacy-focused, and offers a stock Android feel.
Cons: Often lacks full support for the P40 Pro’s complex camera array, leading to lower photo quality compared to EMUI. 3. OpenKirin Projects
The OpenKirin team has historically been the backbone of Huawei modding. They provide ROMs based on AOSP (Android Open Source Project).
Pros: Designed specifically for Kirin chipsets to ensure stability.
Cons: Development for newer EMUI versions (11 and 12) is slower due to Huawei's increased security. 4. GSI (Generic System Images)
Since the P40 Pro supports Project Treble, you can flash a GSI. Options: Pixel Experience, Resurrection Remix, or DotOS.
Pros: You can try the latest Android versions (Android 13 or 14).
Cons: "Bugs" are common, specifically with the in-display fingerprint sensor and face unlock. Benefits of Flashing a Custom ROM
🚀 Performance GainsRemoving EMUI’s heavy background processes can make the 90Hz display feel even more fluid and responsive.
🛡️ Privacy and ControlCustom ROMs often allow you to use MicroG (a lightweight replacement for GMS) or go completely "de-Googled" for maximum privacy.
🎨 Aesthetic FreedomIf you dislike the "iOS-clone" look of EMUI, ROMs like Pixel Experience offer the clean, minimalist Material You design. Key Considerations Before You Start
If you decide to proceed with flashing, keep these requirements in mind: Backup Everything: Flashing wipes all internal storage.
Check Model Numbers: Ensure the ROM is compatible with your specific variant (e.g., ELS-NX9).
Camera Sacrifice: You will likely lose the advanced Leica post-processing features found in the stock EMUI camera app.
SafetyNet: Many banking apps and Netflix (in HD) may not work if the device fails SafetyNet certification. Is it worth it in 2024?
For most users, the best experience on a P40 Pro comes from debloating EMUI using ADB tools rather than a full ROM swap. However, if you are a power user who demands a specific Android skin or wants to experiment with GSI builds, the hardware remains capable of running modern software beautifully. If you would like to move forward, I can help you with:
A list of specific ADB commands to remove Huawei bloatware without unlocking the bootloader.
A guide on how to install GBox or GSpace for stable Google App usage.
The technical steps for preparing your PC for Huawei flashing tools.
This report examines the state of custom ROM development for the Huawei P40 Pro Not Working / Broken:
as of April 2026. While the device remains a hardware powerhouse, its software ecosystem is uniquely restricted due to official security policies. Current Development Status Custom ROM development for the Huawei P40 Pro
is highly limited compared to other flagship devices. Unlike manufacturers like Google or OnePlus, Huawei has officially terminated its bootloader unlock code service. This creates a high barrier to entry for third-party firmware.
Bootloader Constraints: The bootloader is locked by default. Official unlock codes are no longer provided by Huawei, making standard flashing procedures nearly impossible for the average user.
Third-Party Workarounds: Some users resort to unofficial, third-party software services or hardware-based "test point" methods (like PotatoNV) to bypass these locks. These methods often carry a risk of "bricking" the device and may require a paid license.
Developer Support: Due to these locking mechanisms, major ROM projects like LineageOS or Pixel Experience lack official support for the Available Operating System Alternatives Instead of traditional custom ROMs,
users typically choose between different official software paths:
Recently rebranded my EU Huawei P40 Pro to Chinese version. AMA
Finding a custom ROM for the Huawei P40 Pro (ELS-NX9/ELS-AN00)
is extremely difficult because Huawei stopped officially providing bootloader unlock codes in 2018. Current Development Status Locked Bootloader
: 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
) occasionally offer remote bootloader unlocking for specific Huawei models, but support for the is inconsistent due to newer security patches. Project Treble : Since the launched with Android 10, it supports GSI (Generic System Images)
. If you manage to unlock your bootloader, you could theoretically run AOSP-based GSIs, but hardware features like the advanced camera sensors often lose optimization. OS Alternatives
Since standard custom ROMs (like LineageOS) aren't widely available for this device, users typically look for these alternatives: HarmonyOS (China Region) : Many users "rebrand" their global models to the Chinese ELS-AN00 firmware to install
, which offers a more modern UI and better ecosystem integration than EMUI. EMUI 12 / 13
: Ensure you are on the latest official firmware. EMUI 12 introduced a Control Panel and better device linking that mimics the HarmonyOS experience. MicroG / Gbox
: If your goal is simply to get Google Play Services (GMS), most people use "sandboxed" solutions like rather than a full custom ROM. Where to Track Progress If a breakthrough occurs, it will likely be posted on the Huawei P40 Pro XDA Forum
. Avoid any "One-Click Root" or "P40 Pro ROM" sites that ask for downloads or surveys, as these are almost always scams or malware. or how to use for Google apps?
The only working methods involve:
Warning: If you update your phone to EMUI 12 or HarmonyOS 3.0+, many unlock methods become obsolete. Check your current firmware version before spending money.