Auto-Lock won't let me change time

Previous to the Upgrade from iPhone OS 3.1.3 to iOS4 I used Auto-Lock with "3 Minutes" Setting. After update to iOS4 the Auto-Lock is set to "1 Minute" and greyed out.

http://www.flickr.com/photos/derchris/4727750017/ (Automatische Sperre)

What I tried so far:

- Reboot - didn't work
- Reset settings - didn't work
- Restore - did work and I could change settings to 3 Minutes - but after restore my Backup it is greyed out and back to 1 Minute.

I will not restore to factory and rebuild that iPhone from scratch - their should be an other fix for that issue - any idea?

iPhone 3GS, iOS 4

Posted on Jun 24, 2010 12:33 PM

Reply
5 replies

Jun 27, 2010 3:24 PM in response to derchris

From google support on 25/6/10:
"The Mobile team has found the root cause of the issue. The iPhone is experiencing issues with interpreting the lack of a security policy for the Exchange account, and the device auto-locks as a result. We're currently working on a fix and plan to have the fix out soon."

iPhone OS3.1.3 and earlier ignore the lack of security policy. iOS4 applies failsafe security settings when it doesn't receive the security policy.

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Auto-Lock won't let me change time

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