OTA Updates (Over-the-Air Updates, also known as wireless updates) were introduced with iOS 5. This allows a user of a device to go into Settings > General > Software Update and download and install the latest iOS software on-device, without the need for iTunes. The device checks an XML-based PLIST file on mesu.apple.com or sends a POST JSON request to gdmf.apple.com (codenamed Pallas) for updates. The updates are delivered in plain unencrypted ZIP files.
There are three known versions of OTA updates. OTA update bundles contain an Info.plist file and two folders: META-INF and AssetData. META-INF has only one file com.apple.ZipMetadata.plist which describes bundle contents.
Apple pushes out iOS 7.0.4 update
While jailbroken, a device cannot install OTA updates successfully. If you try, it is likely that your device will either be stuck in a boot loop, or certain things will not work correctly. Newer jailbreaks such as evasi0n and evasi0n7 disable the OTA search daemon, which prevents the device from searching for an update (it will just stay indefinitely at "Checking for Update..." and will never show any updates available for installation). This can also be done manually on any jailbreak, by deleting or moving /System/Library/LaunchDaemons/com.apple.mobile.softwareupdated.plist and /System/Library/LaunchDaemons/com.apple.softwareupdateservicesd.plist from your device. It can also be done with tools such as iCleaner Pro.
iOS 7.0.4 arrived in mid-November, bringing a fix for an issue with FaceTime calling. Some iOS devices in Europe and Asia received an iOS 7.0.5 update in late January, adding a fix for network provisioning in China.
Important: If you have a lower firmware version than iOS 7.0.4, it is recommended to update to iOS 7.0.4 before jailbreaking DIRECTLY THROUGH iTUNES. Those who have updated to a firmware version over-the-air (OTA) have a significantly higher risk of running into issues with this Jailbreak. You will also want to disable your passcode. 2ff7e9595c
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