---
title: "Certificate Issues on an iOS Device"
slug: "certificate-issues-on-an-ios-device"
updated: 2025-07-31T11:38:19Z
published: 2025-07-31T11:38:19Z
canonical: "docs.smarsh.com/certificate-issues-on-an-ios-device"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.smarsh.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Certificate Issues on an iOS Device

> **Applicable to End Users**

When installing or upgrading the app, the "Untrusted Enterprise Developer" message is displayed. To overcome this issue, you must install a developer certificate and trust the enterprise that created it.

![](https://cdn.document360.io/20248637-fef6-4111-82b6-c3bf43c0155e/Images/Documentation/certificate-issues-on-an-ios-device-image-47vll00j.jpg?sv=2026-02-06&spr=https&st=2026-11-11T18%3A09%3A07Z&se=2026-11-11T19%3A09%3A07Z&sr=c&sp=r&sig=qPFrTpypeMWGSAeOrXquwqDcUrlkh%2FS%2F7jKT9CVvAS0%3D)

1. Open **Settings** on your iPhone.
2. Tap **General** > **Device Management.** ![](https://cdn.document360.io/20248637-fef6-4111-82b6-c3bf43c0155e/Images/Documentation/certificate-issues-on-an-ios-device-image-xe6u6jcg.jpg?sv=2026-02-06&spr=https&st=2026-11-11T18%3A09%3A07Z&se=2026-11-11T19%3A09%3A07Z&sr=c&sp=r&sig=qPFrTpypeMWGSAeOrXquwqDcUrlkh%2FS%2F7jKT9CVvAS0%3D)
3. Click the enterprise app for which you must trust the certificate. ![](https://cdn.document360.io/20248637-fef6-4111-82b6-c3bf43c0155e/Images/Documentation/certificate-issues-on-an-ios-device-image-s0no4v01.jpg?sv=2026-02-06&spr=https&st=2026-11-11T18%3A09%3A07Z&se=2026-11-11T19%3A09%3A07Z&sr=c&sp=r&sig=qPFrTpypeMWGSAeOrXquwqDcUrlkh%2FS%2F7jKT9CVvAS0%3D)
4. Tap **Trust "<enterprise-name>"** and then tap **Trust** on the pop-up window. ![](https://cdn.document360.io/20248637-fef6-4111-82b6-c3bf43c0155e/Images/Documentation/certificate-issues-on-an-ios-device-image-enc9gvi1.jpg?sv=2026-02-06&spr=https&st=2026-11-11T18%3A09%3A07Z&se=2026-11-11T19%3A09%3A07Z&sr=c&sp=r&sig=qPFrTpypeMWGSAeOrXquwqDcUrlkh%2FS%2F7jKT9CVvAS0%3D)

The Trust certificate is activated.

![](https://cdn.document360.io/20248637-fef6-4111-82b6-c3bf43c0155e/Images/Documentation/certificate-issues-on-an-ios-device-image-j0xlyj8r.jpg?sv=2026-02-06&spr=https&st=2026-11-11T18%3A09%3A07Z&se=2026-11-11T19%3A09%3A07Z&sr=c&sp=r&sig=qPFrTpypeMWGSAeOrXquwqDcUrlkh%2FS%2F7jKT9CVvAS0%3D)

In case you do not trust an app, you can delete it from your iPhone.