Official OS 126.96.36.1991 For BlackBerry Tour 9630 From Verizon
Verizon has officially released OS 188.8.131.521 for the BlackBerry Tour 9630 which will allow new Push To Talk service to work. For all official OS lovers, download link straight from Verizon is mentioned below. Be sure to take full back up before upgrading the OS.
Download: OS 184.108.40.2061 for the BlackBerry Tour 9630 from Verizon
Instructions: How to reload BlackBerry OS