Question for those of you for whom I've done a GSM firmware upgrade
ian douglas
ian.douglas at iandouglas.com
Tue Mar 11 06:48:09 CET 2008
If it helps any, using the March 4th daily build, my Neo registers just
fine on both my TMobile and AT&T SIM's and both receive SMS messages and
can place phone calls.
Mind you, I can connect to TMobile from within my apartment to
make/receive a phone call and receive SMS messages. Inserting my AT&T
SIM, I connected enough to download SMS messages, but to make a phone
call I had to go outside where I have better AT&T reception. Must be the
layout of the building where I live.
-id
Michael Shiloh wrote:
> Hello,
>
> As most of you know, there was a bug in earlier GSM firmware on Neo 1973
> which prevented certain AT&T 3G SIM cards from working in the Neo 1973.
>
> As most of you know, the upgraded GSM firmware that fixed this problem
> could only be installed by an employee of Openmoko.
>
> I peformed this upgrade for perhaps a couple dozen of you.
>
> After I upgraded the firmware on your phones I tested them with my
> personal AT&T SIM card, and they always worked fine.
>
> Starting a few months ago my AT&T SIM card no longer works in upgraded
> Neos.
>
> We're trying to get to the bottom of this. Meanwhile, a useful point of
> information would be your experience:
>
> For those of you for whom I performed the GSM firmware upgrade, did the
> Neo 1973 work properly with your AT&T SIM card after the upgrade? Most
> of you wrote me when you received the phones to indicate that it did.
> Does it continue to do so? If not, when did this start happening? What
> are the symptoms?
>
> For the larger community, do any of you have insight into cellphone
> tower technology? Has AT&T performed an update in the past few months?
>
> Is it possible that AT&T has modified its policy towards unlocked phones?
>
> These are all extreme notions - it is far more likely that something
> trivial and local has occurred. Perhaps I've forgotten to do something
> (although I've reviewed my steps in excrutiating detail with the folks
> back home) during the upgrade process. But since I'm completely out of
> ideas, I'm reaching to the less plausible.
>
> Any ideas welcome, including crackpot ideas. To paraphrase Sherlock
> Holmes, when you have removed the possibility of all other causes, the
> one remaining explanation, no matter how implausible, must be the one.
>
> Michael
>
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