Q1. Why would I downgrade from Android 12 to Android 11?

Some users experience bugs, increased battery drain, or performance issues after a major OS update. Others simply prefer the user interface of the older ColorOS 11. Downgrading allows you to return to a version of the software that you find more stable or preferable.

Q2. What is the difference between the “A” and “F” builds?

The “A” builds are based on Android 11 (ColorOS 11), while the “F” builds are based on Android 12 (ColorOS 12). If you want to return to the original Android 11 software, you must flash one of the “A” builds.

Q3. My Oppo A76 is completely dead (hard bricked). Can this guide help?

Yes. As long as your PC can detect the phone in EDL Mode (as “Qualcomm HS-USB QDLoader 9008”), the flash tool can rewrite the entire system from a low level and bring your phone back to life.

Oppo A76 (CPH2375) Stock ROM | Unbrick, Downgrade & Restore

The Oppo A76 (CPH2375) is a popular mid-range smartphone from 2022, known for its smooth 90Hz display and a large 5000 mAh battery with 33W SUPERVOOC fast charging. It launched with ColorOS 11 based on Android 11 and later received updates to Android 12. However, major OS updates can sometimes introduce bugs, with users reporting issues like faster battery drain, performance lag, or app instability. This guide provides a comprehensive collection of official firmware packages for both Android 11 and 12. These files are the essential tool for users who need to unbrick a dead device, downgrade from Android 12 to 11, or resolve any persistent software issue with a clean installation.

⚠️ CRUCIAL WARNING: Unbrick Tool & Downgrade Risk
This process uses the official Realme/Oppo Flash Tool, a powerful low-level utility. It is the standard method for unbricking a Qualcomm-based Oppo phone. This will completely erase all your personal data and will re-lock the bootloader. Downgrading major OS versions always carries inherent risks. Proceed with extreme caution.

⚠️ Prerequisites: Before You Begin

Click Here for the Essential Pre-Flashing Checklist

Backup Your Data: This process will wipe all data. Back up everything if your phone is accessible.
Charge The Battery: Ensure your phone has at least a 60% charge. If the phone is bricked, charge it for an hour before starting.
Windows PC: You need a Windows PC and the original Oppo USB-A to USB-C cable.

📱 Quick Device Specifications

Device: Oppo A76
Model: CPH2375
Chipset: Qualcomm Snapdragon 680 4G
Display: 6.56″ 90Hz HD+ IPS LCD
Operating System: ColorOS 11/12 (Android 11/12)
RAM: 4GB / 6GB
Storage: 128GB
Battery: 5000 mAh

🛠 Required Tools & Downloads

File / Tool	Download Link
Realme Flash Tool & Drivers	Download From Hub Page
Qualcomm HS-USB QDLoader Drivers	Download Drivers (Alternative)

⬇️ Oppo A76 (CPH2375) Stock ROM / Firmware

Android 12 (ColorOS 12) Firmware

Android Version	Filename	Release Date	Size	Download Link
12 (F.75)	CPH2375export_…_F.75_20250120.zip	2025-01-20	17.58 GB	Download
12 (F.56)	CPH2375export_…_F.56_20221118.zip	2022-11-18	10.22 GB	Download

Android 11 (ColorOS 11) Firmware (For Downgrade)

Android Version	Filename	Release Date	Size	Download Link
11 (A.10)	CPH2375export_…_A.10_20220806.rar	2022-08-06	7.28 GB	Download
11 (A.08)	CPH2375export_…_A.08_20220617.rar	2022-06-17	7.18 GB	Download
11 (A.04)	CPH2375export_…_A.04_20220225.zip	2022-02-25	~4.5-13.9 GB	Mirror 1 / Mirror 2

Quick Steps to Flash Oppo A76 Firmware

Download and install the Qualcomm drivers. Download and extract the Realme Flash Tool and your chosen firmware package to get the .ofp file.
Launch the Realme Flash Tool (`realme_Flash_Tool.exe`) as an administrator.
Click “Browse” and load the .ofp firmware file from its folder.
Power off your phone, then enter EDL Mode by holding both Volume Up + Volume Down buttons and connecting the phone to the PC.
Once the tool shows “Connected”, click the “Start” button and wait for the process to finish. The phone will reboot automatically.

For a more detailed, step-by-step guide on this process, please refer to our main tutorial:
👉 Full Tutorial: How to Flash Firmware with Realme Flash Tool

❓ Frequently Asked Questions (FAQs)

Q1. Why would I downgrade from Android 12 to Android 11?: Some users experience bugs, increased battery drain, or performance issues after a major OS update. Others simply prefer the user interface of the older ColorOS 11. Downgrading allows you to return to a version of the software that you find more stable or preferable.
Q2. What is the difference between the “A” and “F” builds?: The “A” builds are based on Android 11 (ColorOS 11), while the “F” builds are based on Android 12 (ColorOS 12). If you want to return to the original Android 11 software, you must flash one of the “A” builds.
Q3. My Oppo A76 is completely dead (hard bricked). Can this guide help?: Yes. As long as your PC can detect the phone in EDL Mode (as “Qualcomm HS-USB QDLoader 9008”), the flash tool can rewrite the entire system from a low level and bring your phone back to life.