Download Bold 9700 OS 6.0.0.358 from:
DIRECTLINK Download from BBin
*OS Disclaimer – Please Read: Keep in mind this is NOT an official release and as such is not supported by RIM or your Carrier. If you choose to install, do so at your own risk and only if you’re comfortable in the process of upgrading and downgrading your device software. It is quite normal during operating system development for certain features to be crippled or disabled while others are tested, and these beta builds often reflect that. They are not always better. Depending on your BlackBerry comfort level, it may be best for you to wait for community feedback on a build before deciding to download and install for yourself or simply wait for the next official release.
Source: BBLeaks
If your BlackBerry 9700 is T-mobile branded you will have to do these steps after OS6 installed on your device:
1. Connect your BB to PC
2. Open BBSAK
3. Select the Modify CODs tab
4. Select Read System tab
5. Scroll and select the ‘net_rim_theme‘ that has T-Mobile included
6. Select Remove CODs
7. Reboot BB
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