Q: M y iPad camera stopped working

Try these standard troubleshooting steps.

Reset: hold down the Home and Power buttons until you see the Apple logo (10-20 seconds).

If this doesn't help, you might need to Restore your iPhone: https://support.apple.com/en-us/HT204184

If your backup is to iTunes, make sure it's an encrypted backup.

Hi

Follow the instructions here, including contacting Apple Support or making a Genius Bar reservation if necessary:

Get help with the camera on your iPhone, iPad, or iPod touch - Apple Support

Rysz wrote:

 

Try these standard troubleshooting steps.

 

Reset: hold down the Home and Power buttons until you see the Apple logo (10-20 seconds).

...

Note that Apple advises against force restarting your iPad unless it has become unresponsive.

See my previous reply for Apple's standard troubleshooting steps for camera issues (which include a normal restart).