I have a blackberry 9530 from the USA but i live in poland. I have the simlock took off. I never upgraded it and i wonder if i do can i mess up something cuz im not using verizon anymore but another provider called Orange. Last time i tried to speed it up doing all this http://www.youtube.com/profile?user=...43/3sUVY6nPN58 and now i cant send text msg's. I can receive'em tak calls and call but cant send sms. I dont have internet either but i think its cuz Orange doesnt sell the blackberry 9530 in polad still (Telefony komórkowe Orange - abonament, mix, karta i internet - those are the only BB being soled in poland) So i wanna ask u if i can upgarde it safely and to what kinda OS ?







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) ? will upgrading my phone delete that problem ? And one more question: as i said before im using a difrent provider then the one that i bought it from. When i upgrade it can i mess up sth with the provider on my phone, like i want be able to find my provider and i'll be left with no "signal strength"
i will have a "brick" to play and not be able to call ? (if thats even possible 

