Windows 7 phone won't load Facebook chat.?

[DoubtIsThought]

I have a Samsung Omnia 7 (Windows phone). On the recent Mango update, you can get online messenger. However, I recently deleted my Facebook account then re-activated it; now, whenever I flick to my online messenger on my phone an incorrect password message pops up. I have tried synchronising it and deleting it but nothing happens. Help me!

[Dreyers]

Hi im not sure what is the exact reason you are facing the problems. But from my experience, here is what i normally do.

-Try update the phone software
-Try Update the Facebook version on your phone (especially update from Market(Android) )
-Try Clear cache for the Facebook application through your phone application settings.
-Try reformatting the phone

Hope these help!