Choosing the correct Write Mode determines how the target Allwinner device interacts with the prepared MicroSD card.
| Error Message | Cause | Solution | | :--- | :--- | :--- | | "Get disk size error" | SD card locked or reader driver conflict | Unlock physical tab on SD adapter. Try a different USB port (USB 2.0 is more stable). | | "Burn firmware failed at 99%" | Bad blocks on SD card or corrupted image | Re-download the firmware. Use H2testw to check if your SD card is fake/failing. | | "Not support this card" | Vendor ID lock (common in stock v424) | You need the modded EXE. Also try formatting to FAT32 manually first. | | "Device does not boot from card" | Bootloader mismatch | Burn again using "Product" mode instead of Startup. Also check if your device requires a special U-Boot. | | "Driver installation failed" | Windows Signature Enforcement | Disable driver signing: Shift + Restart → Troubleshoot → Startup Settings → Disable driver signature enforcement. |
If you insert the card and the device boots into its old broken OS or remains stuck on a black screen, the bootloader is not reading the card.
To help me tailor any further technical advice, let me know: phoenixcard v424 exclusive
Allwinner has released dozens of PhoenixCard versions (3.1.0, 4.1.3, 4.2.3, etc.). However, most users report that newer versions (v5.0+) have become restrictive. They limit compatibility with older chips (A10, A20, H3) and introduce proprietary checks that reject community-developed Linux distributions.
Creates a "mass production" card used to automatically flash firmware into the device's internal NAND memory when inserted and powered on.
Select if you want the SD card to automatically flash the device's internal memory. Choosing the correct Write Mode determines how the
Plug the power cable back into the device. Do press the power button.
The MicroSD card size or formatting is incompatible with the Allwinner bootloader.
The software operates with both and Startup write modes. Product mode creates a self-booting microSD designed to apply a separate image to a device, whereas the Startup mode is used for creating bootable cards from which a device can directly run an OS. Additional key features include: | | "Burn firmware failed at 99%" |
: Converts a standard MicroSD card into a dedicated tool for updating or repairing firmware on Allwinner-based hardware. Multiple Write Modes :
Version 4.2.4 is considered the "golden release." Newer versions (V4.3.0, V4.5.2) often introduced compatibility issues with older Windows 7/8.1 systems and added restrictive driver signing requirements. V4.2.4 is lightweight, fast, and works universally with Allwinner A10 through H6 chips.
Download the PhoenixCard v4.2.4 archive and extract it to a dedicated folder on your desktop. Do not run it directly from a zipped folder. Right-click PhoenixCard.exe and select . This grants the software direct write access to the physical disk blocks. Step 2: Disk Selection