Technical Hardware & Software Specifications
If you’re flashing your Oppo A9 (Model: PCAM10) and facing the dreaded “Download Not Completed” error in SP Flash Tool or MSM Download Tool, don’t panic. This is a common MTK flashing issue caused by missing or mismatched files—especially the Oppo_Custom.bin file.
In this guide, we’ll explain why this error occurs and how you can fix it permanently using 100% tested files from MobiFirms.com.
Why You Get the “Download Not Completed” Error
This error usually appears during firmware flashing on MTK-based Oppo devices due to one of the following:
- Corrupted or incomplete firmware package
- Missing Oppo_Custom.bin file in the firmware folder
- Wrong or outdated DA or Auth file
- Incompatible SP Flash Tool version
- Faulty USB or unstable flashing connection
Understanding the cause helps you apply the right fix quickly.
Required Tools and Files
Before fixing, make sure you have these ready:
- Oppo A9 PCAM10 official firmware (Download from MobiFirms.com)
- Oppo_Custom.bin file (available separately or within fixed firmware)
- SP Flash Tool (latest version recommended)
- MTK USB Drivers installed
- Good quality USB cable and charged device
Step-by-Step Fix for Oppo_Custom.bin Error
Step 1: Extract Firmware Properly
Download the official firmware and Oppo_Custom.bin file from MobiFirms. Extract both in the same folder.
Step 2: Load Scatter File in SP Flash Tool
Open SP Flash Tool, click Scatter-loading, and select the MT6765_Android_scatter.txt from your Oppo A9 firmware folder.
Step 3: Add Oppo_Custom.bin File
If the custom.bin file is missing, manually add it under the “Download-Agent” or “Custom” partition (depending on your tool version).
Step 4: Choose “Download Only”
Set the flashing mode to Download Only (not Firmware Upgrade or Format All). This prevents data loss and ensures safe flashing.
Step 5: Start Flashing
Connect your powered-off device (hold both Volume keys while plugging in). Flashing will start, and you’ll see a Download OK message once complete.
Pro Tip
If you still get the same error, try:
- Using a different PC USB port or cable.
- Updating your SP Flash Tool to the latest version.
- Flashing with a fixed firmware package that includes a verified Oppo_Custom.bin file from MobiFirms.
This method works on most Oppo A9 MTK variants, including PCAM00 and PCAM10.
Conclusion
By following this guide, you can easily fix the Oppo A9 “Download Not Completed” error caused by a missing or corrupted Oppo_Custom.bin file. Always use official or fixed firmware from trusted sources like MobiFirms.com to avoid bricked devices.
Need the working file?
👉 Download Oppo A9 PCAM10 Fixed Firmware + Oppo_Custom.bin from MobiFirms.com
⚡ Standard Flashing Requirements & Instructions
Prerequisites
- ✓ Charge device battery to at least 50%
- ✓ Use original OEM USB cable
- ✓ Backup all personal data & contacts
- ✓ Install proper USB / VCOM / Fastboot Drivers
Important Notice
Flashing factory firmware will erase all user data. Ensure you have verified your device model number and build code match before starting.
| Select / Version | Region | Size | Date Added | Action |
|---|---|---|---|---|
|
✓
v1.0
Latest
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Global | 1MB | Feb 15, 2026 | Download |