Identify your Square Register

Square Register (1st generation) has two versions — version 1 and version 2. All Square Registers have a 16-digit serial number. Each Square Register (1st generation - v1 & v2) lists their version number in the 4th to 8th digits of the serial number, like this xxxMMMMMxxxxxxxx.

To locate the serial number on your Customer Display or Square Register:

• On the Customer Display, the serial number can be found on the underside. You may need to disconnect the display from the Square Register to view this.

• On the Square Register, the serial number can be found on the backside, near the hinge, facing the customer. You may need to place the unit on its back or lift the screen to view.

• If you are signed in, tap ≡ More > Settings > Hardware > General > About Square Register.

• If you are signed out, tap Change Settings > General > About Square Register.

To identify your Square Register version on Square Dashboard:

1. Log in to your Square Dashboard and click Settings > Device Management > Devices.

2. Click on a Square Register device to view more details.

3. View the version number under Register details.

Note: The Customer Display for Square Register (1st generation - v1) is not compatible with Square Register (1st generation - v2) and vice versa.