Based on the error message you provided, this is a BootROM failure 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).
The box is sitting in a "listening" mode, waiting to receive a new software image or command. Check STB UART: It is looking for a connection via its bootrom error wait for get please check stb uart receive hot
Check for Firmware Updates:
Common settings for BootROM:
"Please check STB UART receive," the terminal seemed to taunt him. Based on the error message you provided, this
: Set your terminal software (like PuTTY or Tera Term) or upgrade tool to the correct baud rate—usually , though some boxes use STMicroelectronics Community 3. Use the Correct Upgrade Tool [ ] Double-check UART wiring and voltage