N4BB

On Sprint’s official blog the admin has made mention that Sprint is pushing OS 4.7.1.57 for the Blackberry Tour. To download go to Options>Advanced options>Wireless Update. The download takes approximately 30 minutes to complete, and the new OS has been reported to allow for improved trackball movement. Some users are getting lucky and can download it, others aren’t. We hope you get lucky!

Source: BerryReview

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