Q: BLANK SCREEN AFTER IOS 9.2 UPDATE

Hey! Follow the steps below:

Try to reset your device. This won't delete your data stored on this device.

• Press and hold the Sleep/Wake button
• Press and hold on the Home button
• Keep holding both buttons until the display turns off and back on with Apple logo on it.

Alternatively, you may go to Settings - General - Reset - Reset All Settings

If this does not help, restore your device to factory settings. Note that this will erase the data from your device.

Take a look this Apple Support article: Use iTunes to restore your iPhone, iPad, or iPod to factory settings - Apple Support.

As a final step, try the recovery mode. Turn your device off, then plug it to your computer with the home button pressed. Keep the Home button pressed until you see the iTunes logo on the screen of your device. After that on your computer you should see the iTunes window saying your device needs to be restored to factory settings. Click on the restore button.

More info here:

https://support.apple.com/en-us/HT201263

If these steps don't work, contact Apple and ask for help.

https://www.apple.com/support/iphone/contact/

Same problem. None of the solutions works. Tried to use iTunes to restore, got unknown error 4014. Can someone help? Thanks.

Maybe this article will help you:

If you see error 9, 4005, 4013, or 4014 when you restore your iOS device - Apple Support

Thanks for replying. I've tried and no luck. Just make an appointment with Apple Store for tonight.

Just for your information: the tech in Apple Store did the same things I have done and got the same 4014 error. Finally replace my phone with a new one.