I’ve noticed a little padlock symbol with a circle round it on the top bar of my phone. Any idea what it might be?

It’s locked to portrait mode.

Ah yes just realised that using this site, so how do I unlock it?

Bring up the newfangled thing by swiping up from the bottom. There’s a button on the top row.

Double press the home button, scroll to the left and press the round icon with an arrow on it.

Fab it’s working again! Thanks.

And I’ve had an iPhone for nearly 4 years but that was a new on for me.