Step 1: When the Passcode Requirement message pops up, tap on Continue. Enter your current passcode and tap on Continue again.
Step 2: iPhone will display the Change Passcode page asking you to enter a new Passcode. Enter a new Passcode and tap on Continue. Your Passcode is now changed.
Updating your iPhone passcode is easy in Settings and here’s how:
Now, your expired passcode is updated, and your apps should be saved from loading.