# Install sunxi-tools git clone https://github.com/linux-sunxi/sunxi-tools cd sunxi-tools makeNever flash random A23 firmware – display, touch, and DRAM timings differ.
make_ext4fs -l 512M new_system.img sys_mount/
For .pac (Allwinner custom):
Search: A23 firmware phoenixsuit img file. Verify checksums and read comments. allwinner a23 firmware
For a custom embedded system (e.g., running mainline Linux):
Build U-Boot
make CROSS_COMPILE=arm-linux-gnueabihf- A23-OLinuXino_defconfig
make
Build mainline Linux (5.x+ supports A23)
Enable ARCH=sunxi and use sun8i-a23.dtsi device tree.
Create a bootable SD card
Boot via FEL (for debugging)
sunxi-fel uboot u-boot-sunxi-with-spl.bin
Allwinner uses its own image formats, often with .img, .pac, or .fw extensions.
| Format | Tool | Contents | |--------|------|----------| | LiveSuit/PhoneixCard image | LiveSuit, PhoenixCard | Raw disk image with partition table + Boot0 + U-Boot + kernel + rootfs | | DragonBoard image | DragonFace | Structured firmware for tablet manufacturing | | FEL-bootable images | sunxi-fel | Individual components (u-boot, kernel, initramfs) loaded over USB | | FEX / DT | bin2fex, fex2bin | Human-readable device tree (converted to binary DTB) |
You might be searching for Allwinner A23 firmware if your device suffers from: # Install sunxi-tools git clone https://github
Flashing stock firmware restores the device to its original factory state, as if you just unboxed it.
If the device shows no sign of life (no USB detection):
If the bootloader area is corrupt, only FEL + hardware short will work.