iosipod-touch
I am trying to upgrade my 4th gen iPod touch to iOS 5.
First I downloaded the IPSW file from iTunes.
When I press shift + "Restore" button, I get the following error:
The iPod cannot be restored at this time because the iPod software update server could not be contacted or is temporarily unavailable.
What can I do to prevent that? I have looked into the iPod update logs and see that I am getting error 1602 but don't know how to proceed.
It is server overload. Either keep trying or wait till the traffic dies down a little.
You can read more about it in this post.
I assume you have all your media synced to iTunes on a Mac or PC? Then it's save to do a full restore of your iPod touch.
Disconnect the USB cable from the iPhone, iPad, or iPod touch, but leave the other end of the cable connected to your computer's USB port.
Turn off the device: Press and hold the Sleep/Wake button for a few seconds until the red slider appears, then slide the slider. Wait for the device to turn off. * If you cannot turn off the device using the slider, press and hold the Sleep/Wake and Home buttons at the same time. When the device turns off, release the Sleep/Wake and Home buttons.
While pressing and holding the Home button, reconnect the USB cable to the device. The device should turn on.
Continue holding the Home button until you see the "Connect to iTunes" screen.
If necessary, open iTunes. You should see a "recovery mode" alert.
Use iTunes to restore the device.
also see: official documentation
Best Answer
In general, you need to be connected to the internet to validate the install iOS packages with Apple's servers at the time of the restore. It is part of the install process that confirms to apple that your software has installed correctly and it generates the user license rather than asking you to enter a serial number for you allowing you to use the software.
Specifically for Error 1062 you need to remove iTunes and Apple Mobile device support from you applications. Then install the latest version of the software on your PC/Mac.