Q: 1970 RETRO BUG?!

Asked and answered dozens of times already...

https://discussions.apple.com/search.jspa?facet=content&type=discussion&q=1970&s ort=relevanceDesc&showAnsweredFirst=true…

Apple will fix the bug in a future update.

In the meantime you can restore from DFU Mode:

DFU Mode:

• Plug your device into your computer.
• Turn off the device.
• Hold the Power button for 3 seconds
• Hold the Home button without releasing the Power button for 10 seconds
• Release the Power Button but keep holding the Home button
• Keep holding the Home button until you are alerted by iTunes saying that it has detected a device in Recovery Mode

NOTE: The Timing is critical and it may take you a few attempts to get it.

Make sure the device screen is blank and no logos are present.

If you see the iTunes logo, it did not work and you will need to try again.

If you changed the date to May 1970 or earlier and can't restart your iPhone, iPad, or iPod touch