sorry, no way to get into it without a password. The device was designed for security in a corporate environment.
you wont be able to sync it to the desktop without a password either.
the only option is if the blackberry was on a corporate Blackberry Enterprise Server. if it was a company issued device, they can send an OTA password reset.
if its a corp device, you would probably need to do alot of finagling or social engineering to get the IT people to send a password reset. It can only be done by the company that the blackberry is enterprise activated with, not by the carrier (sprint in this case)
if its a stand alone blackberry on a BIS, sorry, there's no way. and if you enter one more wrong password, all the data on the device will be gone, forever.
Past: 2004 S60R 6MT
Past: 2007 E90 335i 6MT
Past: 2010 335xi ZMP, MPPK, MPE
Past: 2013 335i 6MT ZMM/ZDH/ZTP/3AG/494/508
Present: 2016 F34 335i xDrive ZCW/ZDA/ZDH/ZTP/ZMP/2V5/5DL