Poorly shielded serial cables or loose Ground (GND) wires can introduce electromagnetic interference. This interference is interpreted by the BootROM as incoming data, quickly filling the receive register.
: The USB-to-RS232 adapter driver is either outdated or incorrectly installed on your PC. Poorly shielded serial cables or loose Ground (GND)
This situation usually requires reviving the box using a computer and a serial cable. Get a USB-to-RS232 Cable: Poorly shielded serial cables or loose Ground (GND)
The error indicates the (mask ROM code on SoC) attempted to receive a boot image or handshake token via UART but failed due to one of the following: Poorly shielded serial cables or loose Ground (GND)