The past 24 hours have just been back to back leaks. The latest leak is for the BlackBerry Tour 9630 which just had OS 5.0.0.571 leak yesterday. The new leak is for OS 5.0.0.591 coming to them courtesy of Bla1ze @CrackBerry. Bla1ze also mentioned that Mikerlawson spotted BlackBerry Messenger 5.0.0.66 included in this leak so expect it to spill out soon.
If you do not know how to upgrade your BlackBerry OS please start by reading this great step by step guide that Luis wrote up. NOTE: Don’t forget to delete the vendor.xml file located in c:program files>common files>research in motion>apploader to install it on a different carriers device.
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