---
title: "PaymentCardReaderError.unknown(code:)"
framework: proximityreader
role: symbol
role_heading: Case
path: "proximityreader/paymentcardreadererror/unknown(code:)"
---

# PaymentCardReaderError.unknown(code:)

An unexpected error happened, try again.

## Declaration

```swift
case unknown(code: Int)
```

## Discussion

Discussion If the error persists, contact support with the provided code.

## See Also

### Getting the error code

- [PaymentCardReaderError.accountAlreadyLinked](proximityreader/paymentcardreadererror/accountalreadylinked.md)
- [PaymentCardReaderError.accountDeactivated](proximityreader/paymentcardreadererror/accountdeactivated.md)
- [PaymentCardReaderError.accountLinkingCancelled](proximityreader/paymentcardreadererror/accountlinkingcancelled.md)
- [PaymentCardReaderError.accountLinkingCheckFailed](proximityreader/paymentcardreadererror/accountlinkingcheckfailed.md)
- [PaymentCardReaderError.accountLinkingFailed](proximityreader/paymentcardreadererror/accountlinkingfailed.md)
- [PaymentCardReaderError.accountLinkingRequiresiCloudSignIn](proximityreader/paymentcardreadererror/accountlinkingrequiresicloudsignin.md)
- [PaymentCardReaderError.accountNotLinked](proximityreader/paymentcardreadererror/accountnotlinked.md)
- [PaymentCardReaderError.backgroundRequestNotAllowed](proximityreader/paymentcardreadererror/backgroundrequestnotallowed.md)
- [PaymentCardReaderError.deviceBanned(_:)](proximityreader/paymentcardreadererror/devicebanned(_:).md)
- [PaymentCardReaderError.emptyReaderToken](proximityreader/paymentcardreadererror/emptyreadertoken.md)
- [PaymentCardReaderError.invalidMerchant](proximityreader/paymentcardreadererror/invalidmerchant.md)
- [PaymentCardReaderError.invalidReaderToken(_:)](proximityreader/paymentcardreadererror/invalidreadertoken(_:).md)
- [PaymentCardReaderError.merchantBlocked](proximityreader/paymentcardreadererror/merchantblocked.md)
- [PaymentCardReaderError.modelNotSupported](proximityreader/paymentcardreadererror/modelnotsupported.md)
- [PaymentCardReaderError.networkAuthenticationError](proximityreader/paymentcardreadererror/networkauthenticationerror.md)