Faulty USB connection or improper driver installation.
The firmware version you downloaded is incompatible with your specific screen hardware revision. You must search for a different, matching stock firmware image.
Your PC needs to recognize the tablet when it is in "Flash Mode" (FEL Mode). allwinner a133 firmware install
The first boot cycle after firmware installation can take anywhere from 5 to 15 minutes as Android configures system caches. If it takes longer or loops continuously, boot into recovery mode (Hold Power + Volume Up) and perform a manual Wipe Data / Factory Reset .
For users on Linux or needing finer control: Faulty USB connection or improper driver installation
These are usually bundled with PhoenixSuit but can be installed separately if the device isn't recognized. 2. Preparation Backup Your Data: Flashing will completely wipe the device. Charge the Device: Ensure your tablet has at least 50% battery. Get the Firmware:
If you have landed on this article while staring at a dead device powered by the Allwinner A133 SoC, you are in the right place. This guide will walk you through the entire process—from understanding what firmware is, to gathering the right tools, finding the correct image, and finally using the proprietary or LiveSuit software to flash your device back to life. Your PC needs to recognize the tablet when
$ sunxi-fel write 0x2000 bootloader-sram.bin $ sunxi-fel exec 0x2000
Flashing firmware carries risks. Read these safety rules before proceeding.
If your tablet's USB port is broken or your PC refuses to recognize the device, use this alternative method.