thread Customer Display not connected message in Hardware Setup & Troubleshooting

Customer Display not connected message

tsh007 — Fri, 23 Oct 2026 14:43:45 GMT

We get the "customer display isn't connected" message and sometimes have to restart the system up to 10 times before it clears. I read posts from 2022 that had the same issues and that square engineers were working on it. Did they ever come up with a solution?

Re: Customer Display not connected message

Manny_SelSq — Fri, 23 Oct 2026 23:34:45 GMT

Hey! @tsh007

A few things worth trying if you haven't already:

If your customer display is connected by cable, try docking it directly to the Register, or vice versa.
Check the connections for dust, damage, or anything loose.
Make sure your Register has the latest software update.

There's more in Square's troubleshooting guide.

Square did release a software update for the 2022 issue, but someone reported a similar problem this past November and eventually requested a warranty replacement.

Hopefully it doesn't come to that for you. Good luck!

Re: Customer Display not connected message

tsh007 — Sat, 24 Oct 2026 00:07:35 GMT

Thank you but none of those have helped. They both are the same generation. The register was a replacement, the previous one worked fine but from memory it had the issue as well. It seems like a software issue or some other glitch. Thanks for trying.