My keyboard won't change to landscape oriantation anymore. How do I fix this?

Double click your Home button, swipe right on the multitask window, you will find the orientation lock on the left. Tap it to unlock and Home button to close Multitask windows. Now landscape orientation will work when you turn your phone

Check your other post for answers. Try not to double post your questions, as it makes it difficult to follow answers.

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I tried your suggestion but it didn't work. It works in all apps except Facebook since I last synced it.

I think Facebook doesn't allow landscape orientation.

it has worked in facebook from day one and since I synced it couple of days ago, it does not work now. Works in all other apps but now not in facebook.

Facebook recently issued an update, and since that time, mine hasn't rotated either. That's why I think they've disabled it.

i have sent a comment into them already. I like the option of turning the keyboard as my fingers are way large to type in portrait

I have small fingers and I prefer typing in landscape.