Hey Michael, I use AT&T as my service (since they bought out Cingular). I had an Cingular SIM (63689 G 4004) that wouldn't work. You upgraded my GSM firmware and it worked fine afterwards. (Thanks!)
It still works now. Thanks, Bobby aka wurp2 > Subject: > 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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