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Square and Devices with Known Issues

Learn which devices have compatibility issues with Square hardware and software.

Whilst you may have been able to use a device previously to process transactions using your Square Reader, our mobile security team are constantly refining our software in order to maintain strict security standards on our platform.

We are required to update our software from time to time to ensure it is secure for our sellers and your customers.

To view which Android-based devices are compatible with our hardware, please visit our Device Compatibility page to see which devices that we can guarantee will work.

Note: The list below doesn’t include all unsupported devices.

Android Devices

Android Tablets Known Issues
Google Nexus 7 The first generation Google Nexus 7 tablet isn’t compatible with the Square Reader. With updated firmware, the second generation Nexus 7 tablet (released August 2013) is supported.
Nook HD and Nook HD+ These devices aren’t compatible with the Square Reader, but you can manually enter card payments.

Oppo Devices

Devices Known Issues
Find X Series, Reno Series, A Series If you do not have an Oppo A57 or Oppo F1s then the device is ‘untested’ meaning we cannot guarantee that the device is compatible with the Square Reader. You can use the Point of Sale app to manually enter card payments.

Samsung Devices

Device Known Issues
- Samsung Galaxy S21, S21+, S21 Ultra 5G
- Samsung Galaxy S20, S20+, S20 Ultra 5G, S20 FE
- Samsung A11
This device is untested meaning we cannot guarantee compatibility with the Square Reader
Samsung Galaxy Note 10.1 Version GT-N8013 of this device isn’t compatible with the Square Reader because it doesn’t update to version 4.4, which is required for use with the reader.
- Samsung Galaxy Player 5.0
- Samsung Moment
These devices aren’t currently supported with the Square Reader, but you can manually enter payments.
Samsung Galaxy Tab 3 The cellular version of this tablet isn’t supported with the Square magstripe reader, but you can use it to manually enter payments. The Wi-Fi version of the device isn’t supported with the Square Reader. The cellular version of this device, with a data plan in place, works with the Square Reader.
- Galaxy Tab E
- Galaxy S5 Active
- Galaxy Tab 4
- Galaxy S5 (AT&T)
- Galaxy Tab E (AT&T)
- Galaxy Tab Pro 12.2”
- Galaxy Tab 4 10.1”
The Square app will not work when a USB On the Go (OTG) adaptor is connected to one of these devices.

HTC Devices

Devices /b>Known Issues
HTC EVO 3D* If you encounter any issues, follow these steps: Open the Square app > insert the reader > tap the home button > adjust the phone volume up/down > re-open the app. *This device is not supported with the Square chip card reader.
HTC EVO Design 4G To make sure the device is compatible, update your device to the newest firmware version.
HTC Incredible If you notice that the Square app fails after updating, delete and reinstall the app. See Google Support for instructions.
- HTC Droid Incredible 4G LTE - HTC One SV - HTC One VX These devices aren’t currently supported with the Square Reader, but you can manually enter payments.

LG Devices

Devices Known Issues
- LG Optimus Elite
- LG Spectrum 2
These devices aren’t currently supported with the Square Reader, but you can manually enter payments.

Other Devices

Device Known Issues
Cricket ZTE Score The Square app isn’t compatible with this device’s small screen size.
Casio G’zOne Commando This device isn’t supported with the Square Reader, but you can use it to manually enter payments
- Coby Kyros
- ProntoTec Axius
- Lenovo K800
- ZTE V975
- HP Slate 7
- Sharp BLU Life Play
These devices are not compatible with the Square app.

To see if your device is supported, visit Square’s Device Compatibility page.

Learn more about: Square Hardware

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