After iOS 9.3 update, my iPhone 6+ won't keep vertical orientation. Any solutions?

[iMore Question]

After iOS 9.3 update, my iPhone 6+ won't keep vertical orientation.

Even with orientation lock, can;t always maintain portrait orientation. Anyone else have this? Any solution?

 

[Quis89]

Re: After iOS 9.3 update, my iPhone 6+ won't keep vertical orientation.

You may have to hard reset your phone. You could first try restoring from a back up and see if that resolves it. If not you'll probably want to try and set it up as new. That way you're working with a fresh install.