camera is not working . it says can't connect to camera

Go to apps and find the camera application. there is a option clean cache and clean it. restart the tab and check. if it is not work you try to update firmware. 50% it could be hardware fault and you should have to change the camera module.

Use camera restarter app from appstore. It may help. But u need root access to work this app

Goodmorning , i had the same problem "cannot connect to the camera " and today i open up my Lenovo Vibe X2 and i saw 2 screws that holds the frond camera, those screws was not properly inserted (unscrew) and i fix it !!!! now my frond camera works !!!! check your screws if there are ok.... greetings from Greece

Try this quick fix first for all Android phones.