Mainline Linux support for A23 is basic but working:
Build mainline:
make ARCH=arm multi_v7_defconfig
make uImage LOADADDR=0x40008000
# Use sun8i-a23-*.dtb
Search: A23 firmware phoenixsuit img file. Verify checksums and read comments.
One of the best collections for Allwinner A23 tablets. Search by model number or PCB version. allwinner a23 firmware
Before you download any "Allwinner A23 firmware," understand this: There is no single firmware for Allwinner A23. Each device has a unique combination of:
Using firmware with mismatched drivers causes: inverted touch, white screen, no Wi-Fi, or a bricked device.
To understand A23 firmware, one must understand the specific boot sequence enforced by the SoC. The firmware is typically distributed as a single image file (often with an .img extension) containing several distinct partitions. Mainline Linux support for A23 is basic but working :
Place modified files back, then run:
imgRePacker.exe firmware.img
Firmware tampering
Binary blobs
Update integrity
Mitigations