I remember when the switch came out people did this a lot. Not sure if the deck had a software or hardware change at some point in its production but the old Switch models were easy to hack.

There is no risk what so ever. I sell tons of stuff. iPhones are a commonly asked serial number. There are various electronics brands with websites to check warranty via serial number. There isn’t much you can do with a serial number by itself.

pretty sure its about checking for stolen item. giving a serial number is no risk.

It’s a steamdeck not a car Why’s he asking for the sn#?

I say walk and find another buyer

Sometimes scammers will try to get you to send a picture from your phone to their phone so they can access the metadata (like location) to get your zip code. I recommend never having direct text messaging contact with a buyer.

But quick question, what’s the difference between this situation and them buying it from the OP and doing the same thing anyway? Either way they’ll have the S/N right? Or alternatively, someone buying a used Steam deck in general and contacting support with the S/N?