For iPhone 4 Users, who don’t have support for iOS 8 and higher, will use the iOS 7.1.2 links.
Download time will depend upon your internet connection’s speed.
Step 2: Install the latest version of iTunes on your PC and connect your iOS device with PC via USB cable.
Step 3: Now open iTunes and also your iDevice’s panel available under iTunes. Take backup of your iDevice, all of your data will be saved in your PC.
Step 4: On the right side you’ll see the option to “Restore iPhone” Press SHIFT (ALT for Mac) and click on restore iPhone, select the IPSW file of the iOS firmware you have downloaded in step 1.
Step 5: After selection of iOS IPSW, again click on “Restore iPhone” and iTunes will ask you this “iTunes will erase and restore your iPhone to latest iOS version and will verify the restore with Apple”. Click on restore button available on this message’s window.
Step 6: After clicking restore, iTunes will start the process to restore latest iOS on your iDevice and during this process your iDevice will reboot several times and also will show status of your restoration process on its screen.
After few minutes your idevice will be on brand new iOS without any Cydia icon, that means your iDevice will be ridden off pangu’s jailbreak.
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