Anyway, if you do happen to lose all the data on your i Pod or somehow corrupt its system, you can just use Apple's i Pod Updater while in Windows to bring it back to normal and repopulate its song library from your hard disk.If your i Pod already has songs on it that you ripped using i Tunes, you will be happy to know that such MP3s pose no problem. If, however, you have files encoded in i Tunes' default AAC format, you should be aware that Linux does not have much in the way of playback support.Install i OS 7.1 update via i Tunes Some folks prefer to physically connect their i OS device to a computer via a USB cable and update their phone via i Tunes.
Wait for i Tunes to open and connect to your device.
Warning for Jailbreakers Apple has patched number of vulnerabilities in i OS 7.1 that was used by evasi0n7 jailbreak, so jailbreakers should avoid upgrading to i OS 7.1 until further notice as you will lose the jailbreak and won’t be able to jailbreak your device.
Install i OS 7.1 update wirelessly Over the Air (OTA): Before you start the download, plug in your device so the battery doesn’t drain during the update process.
Note: If you need help in identify which i OS firmware file to download based on your i Phone’s model number, check this link and for i Pad check this link.
After you have figured out which i OS firmware file to download, click on the appropriate link below to download the file.