Oppo A9 2020 Custom Rom Work
| Question | Answer | |----------|--------| | Does custom ROM work on OPPO A9 2020? | Yes, but not well. | | Is it worth it? | No. The bootloader unlock process is expensive, dangerous, and ROMs are all buggy. | | Best option? | Debloat stock ROM or upgrade to a different phone. |
Bottom Line: The OPPO A9 2020 is a bad choice for custom ROM enthusiasts. Unless you enjoy tinkering with broken cameras and unstable cellular radios, stick to stock or switch devices.
Need the latest development status? Check the XDA Developers forum for "OPPO A9 2020" – but expect few new posts. Most developers abandoned this device in 2023.
Installing a custom ROM on the Oppo A9 2020 Go to product viewer dialog for this item.
(CPH1937/CPH1938/CPH1941) is a challenging task due to Oppo's strict security policies. While the device features capable hardware like the Snapdragon 665, the path to customization is often blocked by a locked bootloader. 1. The Critical Roadblock: Bootloader Unlocking
The most significant hurdle is that Oppo typically blocks bootloader unlocking on its global devices for security reasons.
The Problem: Without an unlocked bootloader, you cannot flash custom recoveries (like TWRP) or custom ROMs. oppo a9 2020 custom rom work
Exceptions: Some Chinese variants may be unlocked using the official "Deep Test" APK.
Recent Developments: There have been reports of permanent bootloader locks being implemented in newer security updates, making it even harder for advanced users to bypass these restrictions. 2. Available Software & Alternatives
If you manage to unlock the bootloader (often requiring specialized EDL mode tools or developer-level exploits), the following options exist:
GSI (Generic System Images): Since official custom ROM support for the
is rare, many users turn to GSIs. These are "universal" Android builds (like Pixel Experience GSI) that can run on Treble-compatible devices.
Project Elixir: While this popular ROM offers a clean Pixel-like experience with Android 16 features , official support for the | Question | Answer | |----------|--------| | Does
is not widely maintained, often requiring unofficial community builds.
Official Updates: The device officially reached ColorOS 11.1 (Android 11). For most users, staying on the latest official firmware is the only stable path for security and app compatibility. 3. Risks of Flashing
Attempting to force a custom ROM onto this device carries high risks:
Yes, custom ROMs exist and work on the Oppo A9 2020 (codenamed: RMX1941 / RMX1945). However, the development scene is limited but active. You won’t find official LineageOS or Pixel Experience, but dedicated developers on XDA and Telegram have ported stable GSI (Generic System Image) ROMs and a few device-specific builds.
✅ Best working ROMs: Android 12/13 GSI (Phhusson’s Treble), CrDroid GSI, Evolution X GSI
❌ Not working: Stock-based ColorOS 12/13, fully stable Android 14 (yet)
If the device fails to enter "deep sleep," the battery drains overnight. Need the latest development status
Do not trust YouTube videos with “Easy Custom ROM” – most are fake or malware. Use only these sources:
For the same $80–100 used price as the A9 2020, get:
✅ After unlock, you can flash:
If unlock fails: No custom ROM possible. Stop here.
| Category | Result | |----------|--------| | Stability | Poor to moderate (random reboots) | | Daily driver | ❌ Not recommended | | Learning experience | ✅ Yes | | Brick risk | High (especially if flashing preloader) |