Fix Oppo A93 CPH2121 “Download Not Completed” Error – Oppo_Custom.bin Solution

If you’re flashing Oppo A93 (CPH2121) and getting the “Download Not Completed” error, you’re not alone. This issue is common with MTK (MediaTek) devices, especially when using tools like SP Flash Tool or Oppo Download Tool. The main culprit is often a corrupted or mismatched Oppo_Custom.bin file in the firmware package.

In this guide, you’ll learn how to fix this error step-by-step and flash your Oppo A93 successfully without bricking your phone.

Why the Error Happens

The “Download not completed” message usually appears due to:

• Wrong or incomplete firmware (mismatched region or version)
• Damaged Oppo_Custom.bin file in the firmware
• Flashing without auth or DA file for MTK secure devices
• Bad USB connection or unstable flashing tool version

Understanding the cause helps you avoid repeating the issue in future flashes.

🔧 Step-by-Step Fix for Oppo A93 Download Not Completed Error

Step 1: Prepare Required Files

💡 Pro Tip: Always use the same region firmware (e.g., India, Pakistan, Indonesia) that matches your device to avoid partition mismatch.

Step 2: Replace Oppo_Custom.bin

1. Extract your downloaded firmware.
2. Locate the Oppo_Custom.bin file.
3. Replace it with the fixed Oppo_Custom.bin file from MobiFirms.
4. Repack or reload the scatter file in SP Flash Tool.

Step 3: Flash Using SP Flash Tool

1. Open SP Flash Tool → load the scatter.txt file.
2. Make sure all partitions are checked (especially “Oppo_Custom”).
3. Connect your phone in power-off mode (without battery if removable).
4. Click Download and wait for the process to complete.

Important: If you still face the same error, switch to a different version of SP Flash Tool or use MTK Download Tool with Auth file.

Step 4: Reboot and Verify

Once flashing completes, disconnect your phone and power it on.

• The device should boot normally without the “Download Not Completed” prompt.
• If stuck in bootloop, perform a factory reset from recovery mode.

Conclusion

Fixing the Oppo A93 CPH2121 Download Not Completed Error is straightforward once you replace the corrupted Oppo_Custom.bin file. Always use tested firmware from trusted sources like MobiFirms.com to avoid such issues.

👉 Download the fixed Oppo_Custom.bin file and official firmware now from MobiFirms.com to restore your Oppo A93 easily.