Introduction: The Grey Icon Issue for iOS Users

The greyed-out icon, particularly for apps installed outside the App Store, is an iOS security feature. It means the app's files are on your device, but the operating system has blocked it from opening because you have not yet performed the required App Verification step—specifically, manually trusting the developer's Enterprise Certificate in your device settings.

The "Untrusted Enterprise Developer" error is the pop-up message that appears when you try to launch the greyed-out app. This error explicitly tells you the app cannot run because iOS does not recognize and trust the certificate used to sign the application. The Installation Stalled Solution for this is always to go to Settings $\to$ General $\to$ VPN & Device Management and manually trust the developer.

Not exactly. An installation that has genuinely stalled is a download issue, often due to poor Wi-Fi or low storage. Try tapping the icon to resume or perform a force restart of your iPhone. The Grey Icon Fix discussed in this guide is specifically for the problem that occurs after the full download is complete but before the App Verification (Trust Developer) step has been performed.

No, you only need to perform the Trust Developer step once for each unique developer certificate. Once the developer is trusted via the Device Management settings, all other apps that were signed with the same Enterprise Certificate will automatically become active, resolving the grey icon for all of them simultaneously.

This fix does not bypass Apple’s security; it completes Apple's security protocol for non-App Store apps. By manually granting trust in the VPN & Device Management section, you are explicitly telling your iOS device that you trust the source and accepting the risks associated with installing apps that haven't undergone the official App Store review process.

The fastest solution is to immediately go to Settings $\to$ General $\to$ VPN & Device Management, find the developer's name under "Enterprise App," and tap Trust "[Developer Name]". This resolves the missing App Verification step and activates the greyed-out icon.

If the profile isn't visible, the initial installation likely failed or is still stalled. First, ensure the Download MEGA888 iOS process is 100% complete and the grey icon is fully visible on your home screen. If it's a genuine Installation Stalled Solution issue, try deleting the greyed-out icon and re-installing the app entirely.

A restart can sometimes fix minor glitches where the icon is greyed out due to a temporary OS bug or stalled installation. However, a restart will not resolve the core security issue of an untrusted developer certificate. You must still perform the App Verification step in the Device Management settings to fully activate the app.

iOS requires this manual trust because the app was installed outside of the official App Store (sideloaded), likely using an Enterprise or Ad-Hoc distribution certificate. Apple's system hasn't reviewed the app, so it mandates that the user, not Apple, manually complete the security check by accepting the risk and trusting the developer.

Yes. Insufficient storage can cause an Installation Stalled Solution, leaving the app partially downloaded and greyed out. Before attempting the Download MEGA888 iOS Grey Icon Fix (Trust Developer step), confirm you have enough free storage. If storage is the issue, freeing up space and then tapping the grey icon will resume and complete the download.