How to Fix iPhone 4 Calendar and Safari Apps Not Working on iOS 6.1.3
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Yusek • October 2, 2013 at 6:28pm
I am experiencing an issue with my 16GB iPhone 4 where the Calendar and Safari apps fail to open or work correctly. The device is running iOS 6.1.3 and was previously jailbroken. What is the best way to resolve this software issue?
Answers
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iClarified • January 14, 2026 at 3:28am
The most effective way to fix crashing system apps like Safari and Calendar on an iPhone 4 running iOS 6.1.3 is to perform a clean restore. First, ensure you have a backup of your important data via iTunes or iCloud. Next, download the appropriate iOS 6.1.3 firmware file for your device from iclarified.com. Connect your iPhone to your computer and use iTunes to restore the device using the downloaded IPSW file. This will wipe any corrupted files from the previous jailbreak and reinstall a fresh version of the operating system.
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iKamangir • October 3, 2013 at 1:21pm
You should first try to reset your iPhone. If the problem persists, create a backup of your device and then perform a full restore. You can download the iOS 6.1.3 firmware from iclarified.com and use iTunes to restore your iPhone to factory settings.