Based on the error message you provided, this is a encountered on devices running Allwinner chipsets (commonly found in Android TV boxes, tablets, and single-board computers). The error indicates the device is stuck in a low-level recovery mode (FEL mode) and is waiting for a signal from a computer via UART (Universal Asynchronous Receiver-Transmitter).
If you are attempting to flash your STB using a USB-to-TTL adapter, a loose TX (Transmit) or RX (Receive) wire will trigger this. bootrom error wait for get please check stb uart receive hot
If you see an error like: "bootrom error wait for get please check stb uart receive hot" it typically appears during early device boot (bootrom/bootloader stage) and indicates the boot ROM is waiting for data over a serial (UART) connection or detected a problem with the STB (set-top box) UART receive line. This post explains likely causes, diagnostic steps, and fixes. BootROM failure Based on the error message you
: The flasher software (like GXDownloader ) is in a "listening" state. It is waiting for the device's BootROM to send a "GET" request (often a 0x7F byte) to signal it is ready for a new firmware image. If you see an error like: "bootrom error