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FEL Mode Description

FEL is a low-level boot and flashing mode in Allwinner chips, mainly used for system recovery or debugging when the device cannot boot from regular storage media.

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Reference: FEL Mode

Entering FEL Mode​

Before powering on the board, press and hold the UBOOT key on the Cubie A7A. After powering on, release the UBOOT key to enter FEL mode.

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For the exact location of the UBOOT key, please refer to the interface description section in the Hardware Interfaces guide!

① : Press and hold the UBOOT key on the Cubie A7A

② : Use a USB Type-A to Type-C data cable to connect the Cubie A7A's USB Type-C port to the PC's USB Type-A port

③ : Release the UBOOT key on the Cubie A7A

Installing System Image​

After Cubie A7A enters FEL mode, you can install a system image to the eMMC / UFS module in this mode.

For instructions on installing the system image, refer to: