As a matter of fact, RIM sent out OS188.8.131.527 in a full untouched update to this particular vendor, China Unicom, and for some unknown reason, before they released this OS to the general public, they pulled out many features, which defeats the purpose of upgrading this OS to your BlackBerry Bold 9900.
It doesn't make any sense why they removed these features before they released OS184.108.40.2067.
Many BlackBerry Bold 9900 owners, were very unhappy with this OS, and can you really blame them?
What Bold 9900 users should remember is not to place the blame on RIM, all they did was send this OS to China Unicom, and the vendor decided to have a hayday on it.
Keep an eye out for future official BlackBerry Bold 9900 OS updates @BlackBerryOS, we'll be sure to test the OS as soon as possible.
This could also be like AT&T with the BlackBerry Bridge situation too, perhaps that telecommunications provider wanted to disable certain functionality from within that OS. Rather than disable it for everyone it would make more sense to disable it from the smartphones they don't want accessing these features.
Another thing I think everyone should note is that if two carriers release identical OS revisions, it definitely is possible for them to include different features and functionality. Granted a user can install an OS from any carrier but because RIM does not handle updates directly via OTA like the PlayBook, once the OS is sent to the telecommunications service provider it's at their discretion.
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