How to solve the wrong problem (-1) in iTunes - iphone - ipad - apple
Sometimes you may have to do a "Restore" to restore your system to its original state in full, and most of the people doing the process to solve problems related to the software system iOS or if the device will be sold to someone else. But in general, the restor Process the may encounter unexpected problems are difficult for users to solve such a problem Mistake No. 1 and receive the message "This iPhone could not be restored due to an unknown error (-1)" As you can see in the previous picture, which appear before the end of the restor Process. This problem is already difficult to solve because they often relate to the physical components of "hardware" of the phone is not related to the operating system. And offer you today some of the solutions that can be tried to solve this problem before you send your computer to a repair center.
Note: one of the following methods may succeed in solving the problem and may not
succeed for this you try all the ways
Before you start to experience these methods there are a quick way to make sure that the problem is caused by hardware "hardware." You can restore the work of restoring the old phones like the iPhone 3GS or iPhone 4 using redsn0w or sn0wbreeze programs. And often will be restoration process without any problem. Once the main screen appearance Home screen go to Settings, then General, then About and look for the IMEI. In the iPhone 4S or iPhone 5 way restoration will not succeed by previous programs, but if you can perform the restore process in any way you clicking on the (i) within the Activation screen and will display the IMEI number.
If the new IMEI number is the number that appears after the update operations, it means that the cause of the problem is not about the physical components of the phone. But if the number is not visible, it means that the problem is related to the physical components of the phone and you should experience the following methods to resolve the problem.
The first method: - s
make sure to update iTunes to the latest version
So make sure you have the latest version of iTunes, run iTunes software and search for updates.
In Windows Help and then select Check for Updates (to show the address bar, press ALT on the keyboard)
Mac computers from iTunes and then select Check for Updates
If there are any new updates install them in the case.
The second way make sure you update your computer system
Using your Mac click on Software Update from the Apple and install any new updates list. Using the Windows operating system went to the Microsoft Windows Update page.
The third way: Unplug any devices related to the computer through a USB port
Any devices connected to the computer via Usb could affect the execution of orders and disrupt communication between your computer and phone, and you need follow the following:
Unplug any device connected to your computer via the USB port such as a printer, scanner or camera, or another phone.
Connect the iPhone only via cable.
Restart the computer.
Run iTunes and restore Try the restore process again.
Note: some of the programs that are installed on the computer create a placebo USB port and you need also disable it before restarting the computer.
The fourth way: Turn off the anti-virus and firewall software for a temporary period
Many Antivirus and firewall programs working to prevent certain types of data traffic to the device software may be a factor in the failure of the restoration process. This is preferred to stop the work of these programs for a temporary period during the implementation of the restoration process.
Fifth way: Restart the computer
Many of the problems are solved as soon as you restart the device so you should restart
your computer and try again.
Sixth way: replace some of the physical components of the phone (for professionals and experts
only)
Following suggested solutions are not for beginners but it should be used by experts only
Replacement the connector dock connector.
Heating plate processor baseband CPU chip.
You may have one of the previous methods to solve the problem already and you have
followed one after the other
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