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Cellular Phones/Blackberry 7290 Roshan SIM Problem
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Question
I am in Afghanistan and just purchased an unlocked T-Mobile Blackberry 7290. I tried a Roshan SIM card but it is telling me that it is an invalid SIM card. Is there a way to get the phone to accept this kind of card, or is this type of Blackberry incompatable with Roshan SIM's? If there is a way to make this work, please let me know.
This device is a quad band GSM device and there is no reason why it shouldn't work with a Roshan SIM card. I have a feeling that either (1) the radio antenna of the device is broken (this is a VERY old device, it came out in 2005) or (2) the SIM card is not active. If the device is truly unlocked, the SIM should work. I would recommend first making sure that the SIM works in another phone and then next see if you can get another SIM to work in the phone. If the SIM works in another phone, then obviously the SIM is good. If another SIM works in the BlackBerry, then the BlackBerry is good. If that's the case, then there shouldn't be an issue. But I have a feeling that the problem is either the SIM or the phone so the test I mentioned will at least isolate the problem. Let me know. Thanks. DebiN
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DebiN
Expertise
I can answer questions on cellular phones, the physical device, the network, contracts, billing, ordering, porting and what to look for when purchasing cell phones. I am located in the United States. I am an expert on BlackBerrys, Treos, HTC devices and iPhones as well as cellphones and aircards. I have over 15 years of experience in both the wireless and wireline world with the carriers. I have a lot of knowledge regarding the wireless providers - their services, prices and policies, both GSM AT&T and T-Mobile) and CDMA (Verizon, Sprint/Nextel). I am very familiar with the individual devices and their specifications. I can also answer questions regarding BlackBerrys, iPhones and other PDAs, both Palm-based and Windows-based. I can troubleshoot most any problem someone is having with their cellular device or with the provider.
Experience
Over 20 years in the Telecom industry working for the carriers with individuals, small business, medium business and large corporations(Fortune 500). Also worked as a professor in Maryland for 10 years teaching telecommunications.
Organizations
I belong to several organizations
Education/Credentials
Master's in Telecommunications
Awards and Honors
Received several awards for papers that I have published over the years
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