If you see “ERROR: S_BROM_CMD_STARTCMD_FAIL”, reinstall drivers or try a different USB port (USB 2.0 recommended).
Install the Lenovo USB Drivers and MediaTek VCOM Drivers on your Windows PC. lenovo a8-50 a5500 firmware
You will likely see a string of characters that indicates your region: If you see “ERROR: S_BROM_CMD_STARTCMD_FAIL”
If nothing happens: