Oppo A9 2020 Firmware
Should you update to the latest firmware?
For custom ROM users: Avoid. There’s no stable LineageOS or GSI due to MediaTek’s (wait – Oppo A9 2020 uses Snapdragon? Correction – actually, the Oppo A9 2020 has Snapdragon 665, but the plain Oppo A9 has MediaTek. Double-check your model before flashing!) – Update: The 2020 model is Snapdragon, so Project Treble GSIs do work, but expect broken fingerprint and VoLTE.
Recommendation: If you’re still using this phone, the latest CPH1937_11_F.37 (or your region’s equivalent) is the most stable. Just debloat using ADB, and you’ve got a reliable backup phone.
Would I reinstall it? ✅ Yes, over any buggy custom ROM.
Would I buy the phone again for its firmware? ❌ No – the software support is too short for 2024+ standards.
Do not download firmware from random links. The best sources are:
In simple terms, firmware is the low-level software programmed into the read-only memory (ROM) of your device. For the Oppo A9 2020, this includes the Android operating system (ColorOS), kernel, drivers, and the modem (radio) software.
Unlike regular apps, firmware dictates how your hardware communicates with software. Incorrect or corrupted firmware leads to: Oppo A9 2020 Firmware
Yes, but only via full OFP flash. OTA downgrades are blocked. Backup data first – downgrading triggers a full wipe.
Oppo anti-rollback is enabled on many A9 2020 builds.
Check ro.boot.antirollback or try to flash an older OTA – if error says “rollback check failed,” you cannot downgrade without advanced hacking (risk: brick).
For the average user: No. Stick to OTA updates via Settings > Software Update.
But for enthusiasts, repair shop owners, or users with a bricked device: Absolutely. The Oppo A9 2020 Firmware is your lifeline. It can resurrect a phone that PC repair shops have declared dead, provided you have the correct CPH variant and a stable USB connection.
Remember the golden rule: Always back up your NVRAM (IMEI partition) before flashing full firmware. If you fail to do this, keep your local Oppo Service Center’s phone number handy – they have the proprietary flashing tools to fix what software cannot.
Disclaimer: This guide is for educational purposes. The author is not responsible for data loss, IMEI null errors, or hardware damage. Always use official firmware sources when possible. Should you update to the latest firmware
The Oppo A9 (2020) Go to product viewer dialog for this item.
has reached its end-of-life for official software support. The final official firmware is ColorOS 11.1, based on Android 11. 🛠️ Official Update Methods
If your device is still functional and you want to check for the latest official version available for your specific region: Standard Update: Go to Settings > Software Updates.
Manual Install: Visit the official OPPO Support Page to download firmware .ozip files for recovery-mode installation. 💻 Manual Flashing (Stock ROM)
If your phone is "bootlooped" or "dead," you may need to flash the full stock ROM using a computer. Note that this often requires specific model identification (e.g., CPH1937 or CPH1938). Common Tools & Files
Firmware Files: Often found on community repositories like FirmwareFile. MSM Download Tool For custom ROM users: Avoid
: The official tool used by service centers (requires authorized login).
SP Flash Tool: Sometimes used for MediaTek variants (though the Go to product viewer dialog for this item. primarily uses the Snapdragon 665 chipset). General Flashing Process Drivers: Install the Oppo USB Drivers on your PC.
Preparation: Back up data; flashing usually wipes the device.
Connection: Power off the phone, then hold Volume Up + Volume Down while connecting the USB cable to enter "EDL" or "Brom" mode.
These guides provide visual walkthroughs for flashing stock firmware and performing a hard reset on the Oppo A9 2020: