> For the complete documentation index, see [llms.txt](https://help.security.gallagher.com/knowledge-hub/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.security.gallagher.com/knowledge-hub/products/cc-hardware/credentials/mobile-connect/troubleshoot.md).

# Troubleshoot

Resolve Mobile Connect app, credential, registration, and connection issues.

Use these articles to diagnose Mobile Connect registration, credential, reader, and notification issues.

### Find your issue

| Issue                                                                                                                                                                                      | Use this article to                                                  |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | -------------------------------------------------------------------- |
| [Unable to receive SMS messages for mobile credential registration](/knowledge-hub/products/cc-hardware/credentials/mobile-connect/troubleshoot/mobile-connect-01-unable-to-receive-sm.md) | Resolve missing SMS verification codes during registration           |
| [Cloud service is not accepting registrations](/knowledge-hub/products/cc-hardware/credentials/mobile-connect/troubleshoot/mobile-connect-02-cloud-service-not-ac.md)                      | Diagnose cloud connectivity, certificate, firewall, and proxy issues |
| [Mobile credential does not work on readers](/knowledge-hub/products/cc-hardware/credentials/mobile-connect/troubleshoot/mobile-connect-03-mobile-credential-no.md)                        | Diagnose reader, Bluetooth, NFC, door, and controller issues         |
| [Apple Pay appears when presenting an iPhone to a reader](/knowledge-hub/products/cc-hardware/credentials/mobile-connect/troubleshoot/mobile-connect-04-apple-pay-coming-up.md)            | Prevent Apple Pay from opening during reader presentation            |
| [Credentials are not sending to a client](/knowledge-hub/products/cc-hardware/credentials/mobile-connect/troubleshoot/mobile-connect-05-credentials-not-send.md)                           | Resolve invitation delivery failures                                 |
| [Auto connect does not work for some phones](/knowledge-hub/products/cc-hardware/credentials/mobile-connect/troubleshoot/mobile-connect-06-autoconnect-not-work.md)                        | Improve automatic connection reliability across devices              |
| [Bluetooth works on Android but not iOS](/knowledge-hub/products/cc-hardware/credentials/mobile-connect/troubleshoot/mobile-connect-07-bluetooth-works-for.md)                             | Verify Bluetooth and NFC behavior on supported readers               |
| [Mobile credential app does not work on an older iPhone](/knowledge-hub/products/cc-hardware/credentials/mobile-connect/troubleshoot/mobile-connect-08-mobile-credential-ap.md)            | Resolve support errors on iPhones without Secure Enclave hardware    |
| [Salto BLE does not work in Mobile Connect](/knowledge-hub/products/cc-hardware/credentials/mobile-connect/troubleshoot/mobile-connect-09-troubleshooting-salt.md)                         | Diagnose missing, expired, or failing Salto BLE keys                 |
| [Mobile credentials disappear from the app](/knowledge-hub/products/cc-hardware/credentials/mobile-connect/troubleshoot/mobile-connect-10-mobile-credentials-d.md)                         | Resolve Android Secure Folder installations that hide credentials    |
| [Mobile credential stops working after locking a device](/knowledge-hub/products/cc-hardware/credentials/mobile-connect/troubleshoot/mobile-connect-11-mobile-credential-st.md)            | Restore access after a device suspends Bluetooth or NFC              |
| [Aperio Bluetooth does not work in the Mobile Connect app](/knowledge-hub/products/cc-hardware/credentials/mobile-connect/troubleshoot/mobile-connect-aperio-bluetooth-not-wo.md)          | Restore Aperio BLE mobile credentials                                |
| [Export Mobile Connect log files](/knowledge-hub/products/cc-hardware/credentials/mobile-connect/troubleshoot/mobile-connect-exporting-log-files-fro.md)                                   | Collect iOS or Android logs for Technical Support                    |
| [Mobile credential stops working after an Android update](/knowledge-hub/products/cc-hardware/credentials/mobile-connect/troubleshoot/mobile-connect-android-update.md)                    | Restore affected Samsung device credentials                          |


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