T-Mobile is one of the first US carriers to officially roll out OS 4.5 for their Blackberry 8320 (Curve). This new operating system is required for any users looking to view HTML email without the use of third party add-ons. Other new features in Blackberry OS 4.5 include spell check, improved maps, Bluetooth stereo music and Over-the-Air device upgrades.

Download T-Mobile Blackberry 8320 OS 4.5 upgrade via Crackberry

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