disconnect the cable until you see the "Download Succeed" message. Device Diagnostics & Alternatives

The OPPO CPH1809, widely known as the (and in some regions as the A1k), remains a popular budget smartphone. However, like any Android device, it is susceptible to software issues—boot loops, IMEI corruption, hard bricks, or the dreaded "Qualcomm HS-USB QDLoader 9008" mode with no display.

| File Name | Version | Size | Download Source | | :--- | :--- | :--- | :--- | | CPH1809_QFIL_Updated_A.26.zip | A.26 (Android 8.1) | ~2.1 GB | Link available via authorized OPPO service centers or trusted firmware archives (e.g., AndroidHost, FirmwareFile). | | CPH1809_QFIL_ColorOS_6.0.zip | C.04 (ColorOS 6) | ~2.3 GB | Available for advanced users. |

The story of the (popularly known as the Go to product viewer dialog for this item.