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Comment Here's how I freed an earlier AT&T-only phone (Score 2, Interesting) 314

Maybe someone with an iPhone can see if this works.

I can confirm that it worked with an earlier AT&T-only phone on the pre-Cingular version of AT&T Wireless (circa 2002 version).

The phone is the Siemens S46. The unlock technique is simple.

Find somewhere without a cell signal. In my case, this is a corner of my basement, as long as the phone is in an old coffee can.

Turn off the phone.

Remove the AT&T SIM card.

Replace with a different SIM card.

Turn the phone back on.

Confirm you have no signal.

Dial 911.

Because the phone, by law, MUST make 911 calls, even without a SIM, the phone will eventually unlock and seek other GSM signals. With this phone, the Siemens S46, you can then stop the outgoing 911 call, attach the T-Mo signal, and you're in.

There you go.

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