Console no longer receives characters

Sometimes the console no longer receives characters. It can prevent from stopping the boot sequence. If it happens, please follow this procedure:

  • Power off the board
  • Disable all boot media (put or remove jumpers, no SD card, etc.)
  • Power on the board
  • Connect to the console
  • Reset the board of few times to see the RomBOOT message several times
  • Enable the boot media needed
  • Reset the board
  • You should be able to send characters to the console