Guys
Please assist I have forgotten the sim card change password as a result I cannot change the sim card on my nokia 6670. Is there some freely downloadable software that I can use to change the sim card?
Thank you in advance

Hi man, I think I can help you. Go to this site: http://nfader.z-host.ru type your IMEI and write on a piece of paper the mastercode which will be shown in the page. Carefully, because if you mistake your IMEI you'll have to wait an hour to get a new mastercode. If the phone asks you for the lock code, you can use the mastercode instead. Switch your phone off (remove the battery), switch it back on, go to Menu->Settings->Security->Phone and Sim->Lock code and type the mastercode. Type your new security code twice and voila! Your phone can be used like old times :) Hope you'll get it goin'.