Tunes or a jailbreak tool like Redsnow may be used to bring back iPhone firmware. Alternatively, iPhone back-up can be restored using iTunes or a third-party program like iTools. Phone restore can be used to mean the reinstallation of firmware during an upgrade or downgrade. It can be done using iTunes or jailbreak tools like Redsnow. Alternatively, backup restore means reinstallation of iPhone data previously supported in the computer or iCloud.
This step is essential following firmware restore or in case of acquiring a fresh iPhone. Back-up, restore is performed using iTunes but is possible with third-party tools like iTools also. Phone firmware restore shouldn’t be confused with on the air (OTA) update which basically upgrades the IOS to the latest version via WiFi connection. It’s important to always backup iPhone content to the iCloud or computer before restoring it.
The important thing to note is that previously supported data can only just be restored to an iPhone whose firmware version is the same or more. Backed up data cannot be restored to a downgraded firmware. Phone firmware restore basically lets you clean the iPhone clean and install a new operating-system (IOS) from scuff.
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You must install and configure apps and configurations afresh. Phone reset in the meantime requires the iPhone software and settings to its original state back. Phone reset is necessary when troubleshooting bugs i.e. Network settings or when opting out of jailbreak status. Restore of backup and firmware is performed using iTunes or via OTA.
Third-party applications for both Windows and Mac permit the downgrade of IOS firmware using such blobs that are backed up in the computer or Cydia servers. Make sure to download the right IPSW file to be restored if you opt to decrease the manual road. For those who aren’t sure what IOS is right for you, download f0recast energy to guide you.
F0recast will show your iPhone model and provide a web link to download the correct firmware. F0recast also directs you to a site that enables you to know the signed and unsigned condition of IOS versions for your iPhone. Use genuine iPhone cables to prevent mistakes that appear through the restore process. Start iTunes. You may have to upgrade to the latest iTunes in the event the restore process encounters mistakes.