There are two primary methods to flash stock firmware onto an Allwinner A133 device: using a PC via or using a MicroSD card via PhoenixCard . Method 1: Using PhoenixSuit (PC Method)
Try pressing the volume-up instead of volume-down during connection. Allwinner A133 Firmware
This usually indicates a bad USB cable, a USB 3.0 port incompatibility, or a corrupted firmware file. Switch to a USB 2.0 port and try a different cable. There are two primary methods to flash stock
You must match the exact motherboard revision of your device, not just the processor name. Switch to a USB 2
If you can tell me the (usually found on the back) and the PCB number (if you've opened it), I can help you narrow down the search for the correct firmware . Allwinner A133 Android Device Security Research - GitHub
: Go to the Firmware tab, click Image , and select your downloaded .img file. Enter FEL/Download Mode : Power off the device completely.