I joined this to get to know my Razr M better and to figure out an annoying msg I've been getting. I'll get an alert saying Facebook username and password incorrect even though I'm already logged in and have logged out and in several times. Help?!?!
Try clearing the cache of the facebook app. This can be done by going to settings -- apps -- Facebook -- clear cache. If that doesn't work, you can clear the data in the same screen. This will require you to login again, but it should fix your problem.
Also, any suggestions on how to lower my data usage? My phone seems to use quite a bit of data throughout the day, when a majority of the time I use my phone and apps at home but it's connected to my wireless internet.