Connect Mac OS X to Serial port for password recovery

Make sure the usb-serial adaptor is recognized by Mac OS X

 ls /dev/tty.*

You should see some items with Serial or PL in name if your adaptor is supported.

Then use following command to connect to serial port

 screen /dev/tty. 9600

Then following vendor instruction to start password recovery process.

The break sequence for “screen” is to use Ctrl-a and then Ctrl-b. The Ctrl-a shifts the focus back to the screen process and the Ctrl-b issues the break. You might want to send the break several times by doing Ctrl-a, Ctrl-b, Ctrl-b, Ctrl-b…

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