To extract:
Receiving a "General error" message when attempting a USB update. Step-by-Step USB Firmware Update Guide
Trying to update the firmware via USB results in a "General Error" because the internal memory can no longer accept new data. The Hero's Journey: Fixing the Board
: The TV hangs on the "Smart TV" or brand logo and restarts .
sudo modprobe -r rt2800usb && sudo modprobe rt2800usb
If you cannot find a working firmware or the hardware is too problematic, consider:
: The TV hangs for several seconds before crashing or shutting down .