In the process of updating the IOS operating system, all user data are saved: photos, applications, contacts, and so on. When recovering (flashing), the device is reset to the factory settings with the enhancement of the software version to be reset, with the process all data on the device will be deleted, that is, you will receive a "clean system". The flashing is performed in the case of: frequent software failures, installing a new software with additional options, when changing the device's user.
1
Download on the Internet and install the latest version of iTunes and the appropriate version of iOS for your device on your computer. Connect the iOS device to the computer using a USB cable in normal operating mode, run iTunes. The program will determine the model of your iPhone and will give a notification with the proposal to update and install a new firmware.
2
Select the model of your device in the iTunes menu. Press and hold the "SHIFT" key on the keyboard left-click on the Restore button in the program window. If the computer is connected to the Internet, then download the new version of the firmware and its installation will start automatically. iTunes will pre-save to save user data on the computer. Agree to the update - and the process of flashing will begin.
3
If the Internet connection is missing, then in the program window that opens, select the previously downloaded IPSW file of the new firmware. Click the "Open" button at the bottom right, and the recovery process will start.
4
You can make flashing using DFU MODE. Download and install a new firmware suitable for your device (IPSW file). Install and run the iTunes program. Enter your iPhone device to DFU mode - the screen will become black. Press the SHIFT key and the Restore button, select the new version of the downloaded firmware in the open window list, click Open. The recovery process went.
5
To update the iPhone, you need to press the iTunes program to "Update" + "SHIFT". Specify the path in the new downloaded firmware, confirm the choice with the "Open" button. Then, agree with the apple updates check and the Update button start the firmware update process to the new version.
6
If there is an Internet, the update can be performed immediately directly on the device. Go to the "Settings" menu - "Basic" - "Update software". Connecting to a computer is not required, but you need WiFi to connect the device to the Internet. Wait for the update completion and execute the primary setting.
Never perform the recovery or update of the official version of the iOS firmware on the locked (tied by the SIM card to a specific operator) iPhone. This will lead to a flashing and built-in modem of the device, and subsequently it cannot be "unlocked" by the program method. You can not use the update and on the iPhone with the jailbreak (modification of the iPhone firmware, not approved by Apple to put on the application application not from the App Store). IPhone with jailbreak must be restored through Dfu Mode.
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