Oppo A5 2020 Twrp Better -

To install TWRP (Team Win Recovery Project) on the Oppo A5 2020 (models CPH1931, CPH1933, CPH1935), you must first navigate significant security hurdles, specifically a locked bootloader and restricted Fastboot access. ⚠️ Critical Warnings

Official Unlocking Unavailable: Oppo has officially removed bootloader unlocking methods for recent models, including the A5 2020.

No Official TWRP: There is currently no official TWRP image for the Oppo A5 2020 on the Official TWRP Device List.

Brick Risk: Flashing a recovery not specifically designed for your exact model can result in a permanent "brick". Phase 1: Pre-Requisites oppo a5 2020 twrp

Before attempting any modifications, ensure you have the following:

Backup Data: Unlocking the bootloader (if possible) will perform a factory reset, erasing all local files.

Enable Developer Options: Go to Settings > About Phone and tap Build Number 7 times. To install TWRP (Team Win Recovery Project) on

OEM Unlocking & USB Debugging: In Settings > Additional Settings > Developer Options, toggle OEM Unlocking and USB Debugging to ON.

PC Tools: Install Minimal ADB and Fastboot on your computer. Phase 2: Unlocking the Bootloader

This is the most difficult step for the A5 2020. Standard commands often fail because Oppo disables Fastboot mode in its ColorOS firmware. Cause: ColorOS’s recovery-from-boot

This document outlines the status, methodology, known issues, and deployment strategies for this specific MediaTek device.


1. TWRP gets replaced by stock recovery after reboot

  • Cause: ColorOS’s recovery-from-boot.p script.
  • Fix: In TWRP, go to Advanced > Terminal and run:
    mount /system
    rm -rf /system/recovery-from-boot.p
    
    Or flash a "Disable DM-Verity & Force Encrypt" ZIP.

What Works and What Doesn’t

| Feature | Status | |---------|--------| | Touch screen | ✅ Working | | ADB sideload | ✅ Working | | Backup/Restore (system, data, boot) | ✅ Working | | Flash ZIPs (Magisk, custom kernels) | ✅ Working | | MTP (file transfer while in recovery) | ✅ Working | | Decrypt internal storage (Android 10/11) | ❌ Broken (needs format data) | | Backup super partition (dynamic partitions) | ⚠️ Partial (use super block) | | Flashing custom ROMs (GSI) | ✅ Working with vbmeta disabled |

Step 1: Unlock Bootloader (Deep Testing)

OPPO requires “Deep Testing” approval for bootloader unlock on this model.

  1. Download Deep Testing APK for CPH1931 (available on OPPO forums or XDA).
  2. Install the APK on your phone.
  3. Open the app, apply for unlock (takes hours to days).
  4. Once approved, open Deep Testing → click “Start Deep Testing” → phone reboots to Fastboot mode.
  5. Connect phone to PC. In command prompt:
    fastboot devices
    fastboot oem unlock
    
  6. Confirm on phone. Device will wipe data and reboot.

Now bootloader is unlocked.


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