I have a Sony Ericsson k550i phone, and recently when I turned it on everything shows up as F4: numbers. Such as "Menu" shows up as "F4:2399" and even today's date shows F4: numbers. I want to back up my contacts to my SIM before I do the site's Update, but I don't know how many times to scroll down or go right by since everything is labeled as F4: numbers. Help please!