*And about rz, do use the same console of shell ? Zmodem* Yes.
That might be a problem with tat? In the past, NSH used special logic that to handle the requirements of a COOKED mode terminal: character echo, CR-LF expansion, etc. These changes were implemented (mostly) in NSH so that NSH could share the terminal with applications that needed RAW mode.
But that has changed recently. The serial console is now in a true COOKED mode that is in the serial driver level and independent of NSH. That means that if you want to run the console in RAW mode, you will need to use termios commands to explicitly switch to RAW mode like:
* Save current termios settings * Force RAW mode And when finished: * Return to COOKED mode (using saved settings) Do you think that could be part of the issue?