: Confirm the GND pin of your adapter is connected to the GND pin on the STB board.
If you want, I can:
Keep your serial jumper wires under 30 centimeters to minimize electromagnetic interference. 2. Match the Baud Rate and COM Port Properties : Confirm the GND pin of your adapter
Which and USB-to-serial adapter are you using?
The you are using (e.g., GXDownloader, Putty, Hitool). Match the Baud Rate and COM Port Properties
If you still see "bootrom error wait for get please check stb uart receive full" after all steps:
A fix for this in the U-Boot bootloader code involves forcing the system to wait during initialization until the bit in the UART Line Status Register is set, ensuring the transmit buffer is completely empty before proceeding. However, if you are using a binary tool or cannot recompile your bootloader, you need to work around it. However, if you are using a binary tool
Troubleshooting the "Bootrom Error Wait for Get Please Check STB UART Receive Full" Issue
: Ensure the device is correctly set to "Bootloader Mode" (often by holding a specific button or setting a jumper like BOOT0) before starting the transfer.