China Unicom releases OS for the BlackBerry Bold 9900

BlackBerry Bold 9900 update
By Bla1ze on 25 May 2012 02:54 am EDT
China Unicom has officially released OS for the BlackBerry Bold 9900. While this is an official release, remember to use caution when updating your device. If you need help along the way, you can head into our help forums or check out some of our BlackBerry 101 articles including How to Install or Upgrade to a new OS. If you do install this OS, hit up the forums thread below for findings, fixes and more discussion because it seems as though there is a few things missing from this OS compared to others that have been released.

Download OS for the Bold 9900
Discuss more in the forums



Hoping for 9810 to come out soon. :)


CrackBerry never sleeps!


nor do crackberry readers!


did anyone lose nfc tags? I cant find it after the install


I just upgraded to yesterday. Today new OS came out....... :D


Is there a list of what's improved/fixed with this release?


Man if you guys ever want 9900 updates just holler.

Apparently whenever *I* do them, it starts a huge wave of OS drops. I finally decided to give .402 a go last week, then .428 came out, now this.

Yay for new OS! Booo for BES provisioning finnickyness!


Can someone let me know if AT&T subscribers still have the mic problem?

duane534 is a train wreck, even worse if you are on AT&T., however, is incredibly nice. But, the mic issue is there a little bit. By a little bit, I mean 1 in 5 calls has dead mic. Many times, if you just wait, the mic will come up "late to the party".

I will post soon RE:


I haven't had any mic issues so far on my blackberry bold 9900 on AT&T running this so far.


Do you guys think there's anything sketchy about downloading from China Unicom? I don't like the sounds of their eligibility declaration:

Eligibility Declaration
I warrant that I:
have not had my export privileges suspended, revoked, or denied by any Government Authority;
am not on any Government Authority list which would prohibit my access to the Software;
acknowledge that this Software, and its underlying technology, may be subject to import, export, and/or use controls by Government Authority(ies) by way of law or regulation;
will not import, use, export, or re-export the Software in violation of any applicable laws or regulations of any Government Authority, including without limitation by:
failing to obtain any applicable government permits, licenses, or authorizations;
distributing or exporting the Software to any country, person or entity to which distribution or export is prohibited.


not sketchy but i wouldn't download this release. i hear it's another disaster. since .342 they've all been bad. one after another with .402 being nearly not working and this one being terrible as well. stick with .3xx series. they're all good with the exception of .391 which slows down for me after 1 day of use without a battery pull. .342 never slows down. But this os is rubbish.


I'm still about to test this. I could give a f**k about someones opinion regarding the following:
-Chinese carrier nonsense
-"any since .yada have been atrocious"

These are the times where you should just find things out for yourself!!


If I decide to test it I will, but I don't need to justify my concern over downloading software from a monopolistic carrier controlled solely by an authoritarian government. I'm not being ridiculous or paranoid, just logical. I'd rather download software from Rogers or AT&T than...China Unicom. By all means go right ahead though.



and maybe go for some anger counselling? just a suggestion.


Installed this around 8am this morning & mid way through my day still no issues to report. Check the forums for more info


Is this a counterfeit release like most of the devices in China? I'm just saying.


428 is awesome! The best yet. I have a Tmobile 9900 and hve no issue at all. I'm not going to try this version. I don't want to go thru all the work if it's a not good. I'm happy with 428 for a while


437 changed my icon from 4G to 3G........


Hey guys is there a such thing as a 4G 9900 or 9930 Blackberry?

I am @DaFatMack


4G slightly different but also considered LTE are not part of the Bold 9900 :)


Do NOT apply this one! It downgrades most of all the core apps! wait for the next version - currently the .428 is very nice so keep with it.

My 2 cents.


Loaded 437 for a few days now. The improvement in battery life is simply remarkable.


You must have had something eating your CPU at 100% in your previous version(s) - I've literally been updating my 9900 every new iterations that came out and haven't noticed anything other than when I enabled battery saving mode (switched to "always") once avail. in the 7.1 series.


I too had been updating every new OS I can lay my hands on, and this is the first time I noticed the battery life improvement. A single charge can now last a full day.
And this release does not even include the Battery Saving Mode.