07-18-2008, 09:13 AM
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Trying to understand a little bit more about Blackberry connections. I have had quite a bit of experience with malfunctions and how to fix them. Recently I've run into 2 SIM related issues I'm just trying to stick my thumb on.
Scenario #1: I have a SIM that would work on the device [AT&T(Cingular) 8700] if it was loaded with 4.2 but not with 4.1 OS. I checked all settings and they mirrored every other device I have. The browsers never showed up under applications under the 4.1 OS. I tried to run an application that was just a redirect to an online store. The browser opened with a message stating something to the extent of "No browser service book." I tried registering but my HRT was empty. I got no response from the registration. AT&T said they couldn't manually send me service books.
Scenario #2: I have a SIM that when put in an AT&T(Cingular) 8800 device will read "Data is refused" where you would normally see a "Insert SIM" message. Same symptoms as previous: nothing in HRT, but did have browser apps in service books. Same results on registering. We tried the SIM on an AT&T 8830. The device worked as normal. Later on we switched the SIM into a few different phones finally returning it into the 8830 again because it seemed to be the only one that could recognize it to some benefit. Now the device shows no HRT and no browser service books, but it does allow you to click the browser app.
I'm not really asking whats wrong. Largely because its clearly a bad set of SIMs. I'm just curious as to how HRT's and Service Books vary in composition. Service books were per device I thought. So if I switch SIMs, it shouldn't change the service books. HRT's seem to be network related and do end up changing per device? Let me know if I'm wrong and toss in whatever ya'll know about the situation, it would be much appreciated.
University of Kansas
Computer Science Engineer