Originally Posted by desc
How do you find what OS you are using
Directly from the http://www.blackberryfaq.com/index.php/Tips_and_Tricks
Hold down the alt key -AND- the cap key at the same time, then the letter 'H'. This brings up the "Help Me!" screen that lists version, app version, pin, imei, uptime, signal strength, batterylevel, file free, and file total.