Hi mdha, Try these steps to restore your iOS device: Install the latest version of iTunes. Restart your computer. Check for updates to your Mac or PC. If you restart your computer for an update, check for updates again after you restart. Try to restore your device using another USB cable. Try to restore your device on another computer. Force your device to restart. If you continue to see error 4013 when you try to restore your iPhone, please report here. I hope I was helpful. Bye!

Hi Pasquale, Please, check this article form Apple.com to help you solve this problem: https://support.apple.com/en-us/HT204770 I hope I was helpful. Bye!

Hi markbiswas, The Error 53 is for security reasons. It is important because a person shouldn't access the data stored in iPhone after changed hardware. You iPhone won't be fixed because a hardware piece have changed. The only way is to get a new iPhone. I hope I was helpful. Bye!

Hi Ralphaeljr, You have to look at Lenovo's website and download the correct drivers for your machine. Look at the link above and select on "Components" your desire driver: http://support.lenovo.com/us/pt/products...-and-netbooks/lenovo-g-series-laptops/lenovo-g580-notebook?beta=false Pay attention to choose the correct driver. If do not work, I suggest you post again to let me help you again, OK? Bye!

Hi acampbell2, Firstly, it is important to understand what is happening when your laptop starts. You said that a blue screen is showing when you turn on the laptop. So, what message is displayed? Any description or information that you can tell us? Sometimes these information are the key to solve instead of formatting the entire hd and reinstall all the operating system. Bye!