The Ultimate Guide to Allwinner A23 Firmware: Flashing, Recovery, and Custom ROMs
After successful flashing, immediately format the SD card as "Normal" using PhoenixCard; otherwise, the flashing process will repeat on every reboot.
If PhoenixSuit does not recognize your device, the correct FEL trigger button has not been pressed. Consult linux-sunxi.org/FEL for your specific tablet model.
Community efforts to build have met with partial success. A developer working on Q8H and GT90h tablets managed to get CM 11 to boot to the lock screen, but hardware composer (hwcomposer) support proved problematic, leading to graphical glitches and performance issues.
Click on the Firmware tab at the top of the interface. Click Image and browse your local storage to select your downloaded Allwinner A23 .img file.
Allwinner devices follow a specific boot sequence defined by the sys_config.fex file (compiled into the firmware).
If you flash a firmware file and your Wi-Fi or touchscreen stops working, you have flashed a ROM with incompatible hardware drivers. How to Find Your Exact Firmware Match
Finding firmware for generic Chinese tablets can be difficult as manufacturer sites often disappear. Good places to look include:
The current of your device (e.g., stuck on boot logo, completely black screen)
Press and hold the button (or Home button, depending on the layout).
To fully grasp the firmware needs of these devices, it helps to understand the engine that powers them. The Allwinner A23 is a dual-core processor built on the ARM Cortex-A7 architecture, typically clocked up to . This processing power is paired with a Mali-400 MP2 GPU , which handled the graphical output. The A23 was notable for its low power consumption, allowing for extended battery life in video playback and music listening scenarios. Allwinner designed the A23 to be a cost-effective solution, using fewer than 260 components on a motherboard to bring down the overall system cost for manufacturers.
This section will provide a generic flashing procedure using PhoenixUSBPro, adapted from various community tutorials. The steps for PhoenixSuit are very similar.