Troubleshooting • 2 min read • Updated 2026-10-22
How to Fix 'Untrusted Enterprise Developer' on iPhone & iPad
Learn how to bypass and trust enterprise certificates in iOS settings so your sideloaded IPAs and Scarlet app can open without crashing.
Step-by-Step Instructions
1. Note the Certificate Name
When you tap your newly installed app and see the 'Untrusted Enterprise Developer' popup, note down the enterprise company name shown in quotes.
2. Open iOS Settings
Open the official Settings app on your iPhone or iPad.
3. Navigate to Device Management
Scroll down and tap 'General', then tap 'VPN & Device Management' (or 'Profiles & Device Management').
4. Select the Enterprise Developer
Under 'Enterprise App', tap the name that matched the popup error.
5. Tap 'Trust' & Confirm
Tap 'Trust [Developer Name]' and confirm by tapping 'Trust' once more. Your app will now launch immediately!
Frequently Asked Questions
What if there is no 'VPN & Device Management' option?
The option only appears after you have initiated the download of an enterprise app. Make sure the installation started first.