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Square Reader FAQs

Review common questions about the Square Reader.

What devices can I use with Square Reader?

You can use most Apple iOS devices and many Android devices with built-in Bluetooth Low Energy (BLE). Check if your device is supported.

What types of payments can I accept?

Square Reader accepts chip & PIN and contactless payments. For more information, check out these resources:

How do I pair the reader to my mobile device?

Learn how to pair your reader and get set up.

I’m having trouble with my reader. Where can I get help?

Review these troubleshooting tips – they solve the most common issues people have with the reader.

Order Questions

How much does the Square Reader cost and where can I purchase one?

The reader is €22 + VAT. Learn where you can purchase a reader.

Are discounts offered for the reader?

At the moment, discounts aren’t available for the contactless and chip reader, but you can pay for the reader in installments instead of a one-time charge with Square’s hardware instalment plan. Learn more about the instalment plan.

Device Compatibility Questions

My device doesn’t support BLE (Bluetooth Low Energy). Can I use the reader?

Devices without BLE aren’t currently supported with the reader.

Can I connect my reader to multiple devices at the same time?

The reader can be used with multiple devices, but it only connects with one device at a time. To connect your reader to another device, make sure to disconnect it from its current device. To do so, visit your in-app Settings > tap Card Readers > select your reader from the list > tap “Forget this Reader.”

You can also disconnect the reader by holding down the button on the reader for 6-15 seconds, until you see solid red lights.

Can I use this reader if my business is mobile?

Yes, just make sure you have a strong Wi-Fi or mobile data connection to process payments and that your reader is fully charged before use.

Can I use any USB cable to charge the reader?

Yes, you can use any standard micro-USB to USB cable, but the reader comes with one for this purpose. While we can only guarantee that our charger is supported, many sellers have had success charging with other cables.

Settings and Pairing Questions

How do I connect the reader to my mobile device?

You can connect your reader wirelessly or by using the included USB cable to plug directly into the USB hardware hub of the Square Stand. Keep in mind your device needs to have an internet connection to pair your reader, as Offline Mode is not available in Ireland.

How do I pair my reader to a new device?

You can connect your reader to any device that supports BLE bluetooth connections. Remember, you’ll need to forget the reader from your old device before you attempt to pair your reader with a new device. If you have any trouble connecting your reader to a new device, check out our troubleshooting steps.

I’d like to connect my reader to the USB hardware hub of my Square Stand, but the three USB hubs are being used by other devices. Can I use a splitter?

We don’t officially support splitters or third-party USB hubs. We recommend connecting the reader wirelessly to your iPad via Bluetooth LE.

How do I turn the reader on and off?

To power it on, push the button on the reader. Once it’s on, you don’t need to worry about turning off the reader. The reader will automatically go into sleep mode when not in use for 2 hours to save battery.

What do the lights mean?

The four LED lights displayed on your reader will tell you all you need to know about your reader, check out the guide below:

Connecting your reader

Four orange lights flashing Reader is in pairing mode
Four green lights Reader has successfully paired
Four red lights Reader failed to pair

Accepting a payment

One green light Reader is ready to take a payment
Moving green lights Reader is processing a payment
Four green lights Payment was accepted
Four red lights Payment was declined

Note: If you don’t see one green light to initiate a payment after 30 seconds, please tap “Re-enable Apple Pay and Contactless” in the app.

Checking your battery

Four green lights Battery is fully charged
Three green lights Battery is 75% charged
Two green lights Battery 50% charged
One solid red light Battery 25% charged
One blinking red light Battery is low and charge immediately

If your reader is completely out of battery, you will see two scrolling red lights when you reconnect your reader to power and it initiates charging.

Charging and Battery Questions

How do I charge the reader and how long will it take to charge?

You can charge the reader by connecting the included USB cable to any power source. Charging will take roughly 2-3 hours, but this will vary depending on your power source.

How long will the battery last?

Battery life will vary depending on usage, but the reader should stay powered through a full day of sales.

How do I check the battery level of my reader?

Learn how to check your reader’s battery level.

Payment Questions

How do I take a contactless payment?

It’s easy! Watch this video to learn how:

What are contactless payments?

Contactless payments describe the act of paying without touching anything. NFC (Near-Field Communications) is a technology that allows for contactless payments. Using radio frequency, NFC allows devices (e.g. smartphones) to wirelessly communicate at close range to do things like process payments. Apple Pay and Google Pay are both forms of NFC and types of contactless payments.

Are contactless payments secure?

Yes, they’re just as secure as accepting chip & PIN. In some cases because of additional verification methods (like Touch ID with Apple Pay), contactless payments can be even more secure. Learn more in Square’s comprehensive guide to Apple Pay.

How long does it take to process a chip and PIN card?

Chip and PIN card payments require additional security steps to transfer and verify chip data. It can take around 6–7 seconds to complete a chip and PIN card transaction when it’s inserted into the reader’s card slot.

Do I leave the chip and PIN card in the reader’s card slot while taking a payment?

Yes, you’ll need to leave the chip and PIN card in the reader until the transaction is complete. You’ll get a confirmation message in the app and see 4 green lights on your reader when it’s time to remove the card.

Can I take test contactless payments with the reader?

Not currently, but you can practice taking contactless payments by completing a €1 sale and immediately processing a refund.

Can I use the reader while my mobile device is connected to other Bluetooth devices?

Yes, you can connect to other devices without impacting your connection to the Square Reader.