3G sim cards

Scott Rushforth scott at spotman.net
Sat Jul 28 09:43:01 CEST 2007

Minor update on the cingular/att 3g sim issue:

I tested my device out this evening with a t-mobile prepaid sim (2g), 
and I am able to make outgoing calls successfully.  Even got the audio 
working after some fuss ;)

So anyhow, seems like its definitely due to either the cingular/att 
network and/or the 3g sim card, and not the neo itself.

Fwiw, the sim contacts on both of the sims appear slightly different.  I 
do not know enough about sim cards to know how significant that is. 


Harrison Metzger wrote:
> I agree. The neo should work with the largest US provider. I would be 
> more than happy to mail my sim card to TW or to someplace where 
> someone who knows more about the technology than me can look at it (as 
> long as I can get it back lol). It would be nice to see the raw 
> communication (if any) between the sim and the phone. IMO this is a 
> very important issue and I hope the core neo engineers or openmoko 
> developers will get time to look into it. (its filed on bugzilla as 
> number 666)
> Harry
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