8900 switching to GSM
In my house which I have great reception my phone has been switching to capital GSM alot. Called Tmo and they have not had any problems with service. I have .168 software. My 8320 never displayed GSM this much.
Might be the SIM card - if possible replace it with another one from tmo to test whether it gets onto gprs/edge network or put your BB-SIM into another device and try to open a wap/web page.
This way you should be able to determine where the issue comes from.
I have faced similar issue with my 8900.. but mine was switching from upper case EDGE to lower case "edge".. I was on 188.8.131.52 but after I upgraded to 184.108.40.206 I have never faced the same issue again... it could be a coincidence but I highly doubt this behavior is due to the OS.. it is more likely a carrier issue.
You may want to upgrade to 220.127.116.11 and check if you face the same issue. .174 although is a beta but it has been stable till now.
Oh..one more thing.. you may have to install DM 4.6 as I think DM 4.7 does not recognize beta OS.
Depends, raja... usually GSM/gprs network issues are caused by the SIM - gprs/GPRS
(logon to RIM network) may also be firmware-specific
Updates via DM 4.7 normally work also for betas, and best done directly via
loader.exe (without whole DTM started) -> c:\program files\common files\research in motion\apploader\loader.exe
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