My Iphone 5s screen stuck in portrait mode.

Hello Ashley,

Thank you for the details of the issue you are experiencing with your iPhone screen orientation. Thank you for checking the orientation lock; that is a great first step to take. I recommend continuing with the steps below to troubleshooting this:

1. Not all iOS apps are designed to rotate. Some may use only portrait or landscape mode, or switch depending on the content. To test screen rotation, open the Calculator app that comes with your device. If the screen does not rotate as expected while using the calculator app, continue troubleshooting.
2. If the issue persists, restart your iOS device.
3. If the screen remains locked, back up and restore your device.
4. If the display orientation still will not change when rotating your device, follow these troubleshooting steps.

iOS: Screen does not rotate

http://support.apple.com/kb/TS3805

Thank you for using Apple Support Communities.

Best,

Sheila M.

Thanks,that did it.( trying the calculator)