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BlackBerry® Bold™

Posts: 19
Registered: ‎05-28-2013
My Device: 9930
My Carrier: T mobile

Which OS do I have to install?

I have BB 9930 from Verizon but I'm using T mobile now. Because it's unlocked. 


But I wanna reload my OS on my 9930, which OS do I have to choose?



9930 from Verizon or T mobile, Actually T mobile does't exist 9930. it's 9900. 


Do you have an idea guys?