You can view your device's logs using the Wi-Fi debugger module. The second Serial port is used for this.
Turn on logging on the Flipper Zero in the Settings → System → Debug menu.
Plug the module into the Flipper Zero's GPIO.
Connect the module to your computer via a USB cable.
<div class="warning flipper-callout">
Logs can only be viewed when the module is connected via USB.</br>
The ability to view logs over Wi-Fi will be added later.
Install Putty, connect to the board's second COM port and set the speed to 230400.
Run ls /dev/ttyACM* in terminal to see a list of connected devices:
$ ls /dev/ttyACM*
Connect to the board's second serial port and set the speed to 230400.
minicom -D /dev/ttyACM1 -b 230400
Run ls /dev/cu.* in terminal to see a list of connected devices:
% ls /dev/cu.*
Connect to the board's second calling unit port and set the speed to 230400.
minicom -D /dev/cu.usbmodemblackmagic3 -b 230400