| Error Num | Error Macro | Error Message Displayed | Description of Error |
|---|---|---|---|
| 400 | USB_NO_ERROR | N/A | Success |
| 401 | USB_NOT_COMMISSIONED | The device is not commissioned. Please commission the device using mobile app | Occurs whenever the device is not commissioned, but tries to operate MT20W |
| 402 | USB_CARD_READ_FAILURE | Read failure. Present the card again | Generic card read failure like removing card early, etc. |
| 403 | USB_CARD_DATA_ENCRYPTION_FAILURE | Data encryption failure. Please try again | Encryption failure during primary credential encryption (may be site key missing.) |
| 404 | USB_INVALID_HTTP_REQUEST | Invalid HTTP request. Please try again | Invalid Request type (other than POST and GET) |
| 405 | USB_HTTP_RESP_PARSE_FAILURE | Data parse failure. Please try again | Wrong JSON string received from the Desktop App |
| 406 | USB_TIMESTAMP_UPDATE_FAILURE | Update error. Please try again | Failure to update last connected time |
| 407 | USB_HTTP_STATUS_BADREQ | HTTP Bad request. Please try again | |
| 408 | USB_HTTP_STATUS_UNUAUTH | HTTP authorization error. Please recommission the device | Unauthorized retry reached max. |
| 409 | USB_HTTP_STATUS_NOT_FOUND | URL not found. Please try again | |
| 410 | USB_HTTP_STATUS_CREDEN_NOT_ASSOCIATED | Credential not assigned. Assign and try again | Credential is present in the list but is not assigned to a lock. |
| 411 | USB_HTTP_STATUS_INTERNAL_SERVER_ERROR | Server error. Please try again | |
| 412 | USB_HTTP_STATUS_VERSION_UNSUPPORTED | HTTP version not supported. Please try again | |
| 413 | USB_HTTP_STATUS_SERVICE_UNAVAILABLE | Service unavailable. Please try again | |
| 414 | USB_HTTP_STATUS_INVALID | Unknown response. Please try again | Invalid response for HTTP Post request |
| 415 | USB_INVALID_NOTOUR_DATA_RECEIVED | Invalid no-tour data received. Please try again | Occurs whenever content length is zero and HTTP response 200 received |
| 416 | USB_NOTOUR_WRITE_FAILURE | Write failed. Please try again | Generic error for No Tour write fail |
| 417 | USB_NOTOUR_WRITE_AUTH_FAILURE | Sector authentication failure. Please try again | No Tour Sector authentication failure |
| 418 | USB_NOTOUR_DATA_WRITE_FAILURE | Sector write failure. Please try again | No Tour Sector data write failure |
| 419 | USB_INCORRECT_FWDLD_URL_RECEIVED | Firmware download URL error. Please try again | Occurs whenever URL validation failed; (i.e. if URL does not contain any http:// in URL) |
| 420 | USB_FW_FILE_TOO_LARGE | Firmware too large to store. Try again or contact support for further assistance | Occurs whenever content size is more than 1.3 MB |
| 421 | USB_FWDLD_FLASH_WRITE_FAILED | Unable to save firmware. Please try again | Occurs whenever any error occurred while writing the data into the serial flash |
| 422 | USB_FWDLD_FLASH_ERASE_FAILED | Firmware erase error. Please try again | Occurs whenever any error occurred while erasing the data into the serial flash |
| 423 | USB_FWDLD_ZERO_HTTP_CONTENT | No firmware available. Please try again | Occurs whenever content length in the response to a firmware download request is zero |
| 424 | USB_FWDLD_FW_FILE_INVALID | Firmware validation failed. Please download again | Firmware file validation failed (after reset) |
| 425 | USB_TIMESTAMP_DECRYPTION_ERROR | Component decryption failure. Please try again | Occurs whenever last connected time component received could not be decrypted |
| 426 | USB_INCORRECT_TIMESTAMP_RECEIVED | Incorrect component received. Please try again | Occurs whenever an updated last connected time component is not received |
| 427 | USB_UNKNOWN_ERROR | Unknown error. Please contact tech support | Undefined error |
| SW Error | Error Macro | Error Message Displayed | Description of Error |
| 428 | N/A | No internet connection. Please try again | No internet connection |
| 429 | N/A | Error occurred. Please restart the app and reconnect the reader | The card reader is in a failed state. Device write failed from the desktop app. |
| 430 | N/A | Invalid data received from the reader. Please try again | The JSON data received from the card reader is invalid |
Last Modified: October 15, 2019