Greetings, I understand that you are trying to install DSM 7. Assuming that you already know how to get the VID number and the PID of your SSD, from putty when you have to register the identification (PID-VID) of the SSD, instead of using the identification write "vi user_config.json" without the quotes of course, once in the editor press the "INSERT" key and then with the arrow keys of your keyboard go to the PID and the VID and change the four numbers that are after 0x, to save and exit press the "Esc" key, then ":" (two points), then W and then Q and that's it you can continue with the following commands, good luck.
