Archived from groups: alt.cellular.cingular (More info?
If you can make calls it is not the SIM.
Most likely the upgrade is for a non-us country there are ways around this
go to http://forum.xda-developers.com/
the SX66 is known as a blue angel
device in the forum.
"Scott Townsend" <scott-i@.-N0-SPAMplease.enm.com> wrote in message
>I just received my new Siemens SX66 from my Cingular provider. I tried to
>upgrade to the 1.33.110 firmware from the Siemens Website and got an
>invalid Country ID Error. In Contacting Siemens, they said that I have an
>AT&T variant version of the SX66...
> So my Question is, since AT&T does not really Exist anymore, will my AT&T
> Variant SX66 be supported by Siemens/Cingular?? Should I return the phone
> and switch to a Cingular Plan/SIM?
> I don't want to be stuck with a phone I cant upgrade or be forced to toss
> because they get rid of the AT&T SIM Cards or something...