IOS 4.2.1 and Portrait Lock

Here’s a weird one – since updating my iPhone 3GS to the latest version of IOS 4.2.1, I noticed an issue (another one!) this time with the screen orientation.

Lock Mode

Screen Lock Mode Button

Things were OK before the update, but after installing IOS 4.2.1 I seemed to lose the changes to the screen orientation between portrait and landscape mode.

Turning the device on it’s side should have flipped the screen to landscape, but my 3GS was stuck in portrait mode.

Now, there is a very helpful little button that works to enable screen lock, just so the screen doesn’t flip when you don’t want it to…

Double-tapping the Home button reveals any of the apps that you currently have open, and they are displayed as a horizontal list.

If you swipe from left to right, you will come to a set of icons for controlling the ipod playback. There is also a button for locking the screen in portrait mode. To enable it, you simply click the button (rotate icon on the far left of the screen.)

In my case, clicking this had no effect, until I clicked it a second time and my screen rotated. Then it was locked in landscape mode! This was across all my apps and was a bit of a pain as closing the app reset the mode to locked in portrait again… Particularly annoying as the qwerty keyboard in landscape is great.

I tried rebooting the device without luck, but finally, after shutting the device down and leaving it off for 20 minutes, everything was restored to normal.

I guess the phone cache wasn’t cleared properly with quick restarts!

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