Cingular won't activate my AT&T SIM chip

Archived from groups: alt.cellular.cingular (More info?)

I have a new AT&T SIM chip for my unlocked
Motorola C650, but the information that I
get from Cingular -- including from a
former AT&T service center -- is that they
will no longer activate a GSM phone that
uses an AT&T SIM card.

I have thought of hacking the SIM card to
a Cingular ID number. Two questions:

1. Is it possible to hack into a SIM card,
past the password protection, and alter
the ID number?

2. If I succeed in doing that, and I create
an ID that Cingular recognizes as theirs, I
will have created a "random" ID, which may
or may not already be active on the system.
What might be the consequences of that?

TIA
11 answers Last reply
More about cingular activate chip
  1. Archived from groups: alt.cellular.cingular (More info?)

    You should not have any trouble with the SIM at a location that was formerly
    an AWS store however Cingular does not want to activate any unlocked phones
    regardless of the system.

    Fred

    "Alan Turing" <Alan.Turing@bletchleypark.uk> wrote in message
    news:07IARE4238501.8707060185@si93kru1.poster...
    > I have a new AT&T SIM chip for my unlocked
    > Motorola C650, but the information that I
    > get from Cingular -- including from a
    > former AT&T service center -- is that they
    > will no longer activate a GSM phone that
    > uses an AT&T SIM card.
    >
    > I have thought of hacking the SIM card to
    > a Cingular ID number. Two questions:
    >
    > 1. Is it possible to hack into a SIM card,
    > past the password protection, and alter
    > the ID number?
    >
    > 2. If I succeed in doing that, and I create
    > an ID that Cingular recognizes as theirs, I
    > will have created a "random" ID, which may
    > or may not already be active on the system.
    > What might be the consequences of that?
    >
    > TIA
    >
    >
    >
  2. Archived from groups: alt.cellular.cingular (More info?)

    "Fred" <agunat@yahoo.com> wrote in message
    news:JNume.1595$xu3.680@lakeread02...
    > You should not have any trouble with the SIM at a location that was
    formerly
    > an AWS store however Cingular does not want to activate any unlocked
    phones
    > regardless of the system.
    >
    > Fred
    >
    GSM phones are not activated just the SIM, most providers if not all only
    activate their own sims. A cingular or any other GSM sim works fine in
    unlocked phones, unless the phone is blacklisted/stolen. You may or may not
    have issues setting up web access with a unlocked phone that cingular
    doesn't provide. My cingular phone was unlocked by cingular when I made the
    request, it continues to work on cingular or t-mobile depending on the sim.
    I also have a t-mobile provided phone that is unlocked that works on both
    providers. Did you mean to say Cingular locks phones that it sells ? If so
    this is true. Some providers such as Sprint (cdma) will not activate a phone
    that they didn't provide. Prebuy-out I've also activated a tdma AT&T phone
    on Cingular which AT&T would not activate because it was 800MHz only. Single
    band 1900Mhz phones supplied by t-mobile will not work on the 800/850Mhz
    Cingular network even if unlocked. The phone must be compatible for it to
    work, you will not get a Verizon cdma phone to work on the Cingular tdma
    network. Bottom line is Cingular doesn't care if the phone is locked or not
    if they didn't supply it.
  3. Archived from groups: alt.cellular.cingular (More info?)

    Fred wrote:
    > ... however Cingular does not want to activate any unlocked phones
    > regardless of the system.
    >

    This is not true (at least not universally). I activated A SIM on my
    unlocked V550 (Vodaphone branded)on May 20 in Salt Lake City at a
    Cingular "company store".
  4. Archived from groups: alt.cellular.cingular (More info?)

    On Mon, 30 May 2005 08:23:47 -0600, RWEmerson
    <foolish_consistency@hobgoblin.com> wrote:

    >Fred wrote:
    >> ... however Cingular does not want to activate any unlocked phones
    >> regardless of the system.
    >>
    >
    >This is not true (at least not universally). I activated A SIM on my
    >unlocked V550 (Vodaphone branded)on May 20 in Salt Lake City at a
    >Cingular "company store".

    I purchased a V551 from Cingular through Amazon.com in December that
    was not locked. Maybe that practice has changed.
  5. Archived from groups: alt.cellular.cingular (More info?)

    On Sun, 29 May 2005 19:27:50 -0700, Stanley Reynolds
    <nospam_stanley_reynolds@yahoo.com> wrote:

    [snip]
    > My cingular phone was unlocked by cingular when I made the
    > request, it continues to work on cingular or t-mobile depending on the
    > sim.
    [snip]

    Do you know if this is standard policy or were there any special
    circumstances in your case? That is, would they unlock my v551 if I asked
    them to? To be honest, I don't even know if it's locked - I just assume it
    is since it's branded with the Cingular badge. But I'm planning some
    travel in Europe and would like to be able to use local SIM cards while
    I;m there without having to buy a new phone.


    -Dean
  6. Archived from groups: alt.cellular.cingular (More info?)

    On Mon, 30 May 2005 20:45:32 GMT, "Dean M."
    <cjmebox-telecomdigest@yahoo.com> wrote:

    >On Sun, 29 May 2005 19:27:50 -0700, Stanley Reynolds
    ><nospam_stanley_reynolds@yahoo.com> wrote:
    >
    >[snip]
    >> My cingular phone was unlocked by cingular when I made the
    >> request, it continues to work on cingular or t-mobile depending on the
    >> sim.
    >[snip]
    >
    >Do you know if this is standard policy or were there any special
    >circumstances in your case? That is, would they unlock my v551 if I asked
    >them to? To be honest, I don't even know if it's locked - I just assume it
    >is since it's branded with the Cingular badge. But I'm planning some
    >travel in Europe and would like to be able to use local SIM cards while
    >I;m there without having to buy a new phone.
    >
    >
    >-Dean


    I was a customer with Cingular for just 2 months when I put in a request
    for the unlock code for my V551 through CS. I had the code in 5 days.
  7. Archived from groups: alt.cellular.cingular (More info?)

    "rring" <replyingroup@invalid.com> wrote in message
    news:ntum91ddbkm5qa4vqi5q9tvmt0s3b8bd28@4ax.com...
    > On Mon, 30 May 2005 20:45:32 GMT, "Dean M."
    > <cjmebox-telecomdigest@yahoo.com> wrote:
    >
    > >On Sun, 29 May 2005 19:27:50 -0700, Stanley Reynolds
    > ><nospam_stanley_reynolds@yahoo.com> wrote:
    > >
    > >[snip]
    > >> My cingular phone was unlocked by cingular when I made the
    > >> request, it continues to work on cingular or t-mobile depending on the
    > >> sim.
    > >[snip]
    > >
    > >Do you know if this is standard policy or were there any special
    > >circumstances in your case? That is, would they unlock my v551 if I asked
    > >them to? To be honest, I don't even know if it's locked - I just assume
    it
    > >is since it's branded with the Cingular badge. But I'm planning some
    > >travel in Europe and would like to be able to use local SIM cards while
    > >I;m there without having to buy a new phone.
    > >
    > >
    > >-Dean
    >
    >
    > I was a customer with Cingular for just 2 months when I put in a request
    > for the unlock code for my V551 through CS. I had the code in 5 days.
    >
    >
    No, special circumstances just told them I would like to put a prepaid sim
    in my phone while traveling, they email me the code with very good
    instructions. I've had good luck with t-mobile as well they want you to be a
    current customer (prepaid is ok) and they will give you any code in their
    data base. Any gsm sim other than cingular should tell if your phone is
    locked the sim does not need to be active for this test.
  8. Archived from groups: alt.cellular.cingular (More info?)

    On 30 May 2005 00:53:49 -0000, Alan Turing <Alan.Turing@bletchleypark.uk>
    spewed:
    >I have a new AT&T SIM chip for my unlocked
    >Motorola C650, but the information that I
    >get from Cingular -- including from a
    >former AT&T service center -- is that they
    >will no longer activate a GSM phone that
    >uses an AT&T SIM card.
    >
    >I have thought of hacking the SIM card to
    >a Cingular ID number. Two questions:
    >
    >1. Is it possible to hack into a SIM card,
    >past the password protection, and alter
    >the ID number?
    >
    >2. If I succeed in doing that, and I create
    >an ID that Cingular recognizes as theirs, I
    >will have created a "random" ID, which may
    >or may not already be active on the system.
    >What might be the consequences of that?
    >
    >TIA
    >
    >
    That's WAAAAAY more work than you need to do.
    I'm assuming this is a "locked" phone to that's the problem?
    It's not that it won't take an AT&T SIM, as SIMs are standardized size and
    format. It's that it's locked to AT&T in software.
    Just get an unlocker.
    If that phone accepts software, you can probably just d/l it from one of
    the warez groups.
    If it doesn't, do a google for that model and "unlock".
    Shouldn't cost ya more than $20.
    My brother got one for his Ericsson T616, I just found one for an old
    I888, and I've found them for Treo 270 and 600.

    --
    _____________________________________________________
    For email response, or CC, please mailto:see.my.sig.4.addr(at)bigfoot.com.
    Yeah, it's really a real address :)
  9. Archived from groups: alt.cellular.cingular (More info?)

    I am curiously learning all about unlocking in this thread. I am
    planning to get a new cell phone (And a new service) and would like to
    understand better about allt his before my purcahse.

    > That's WAAAAAY more work than you need to do.
    >I'm assuming this is a "locked" phone to that's the problem?
    >It's not that it won't take an AT&T SIM, as SIMs are standardized size and
    >format. It's that it's locked to AT&T in software.
    >Just get an unlocker.

    What do you mean? I mean how? By downloading the software?

    >If that phone accepts software, you can probably just d/l it from one of
    >the warez groups.
    >If it doesn't, do a google for that model and "unlock".

    Do you mean to buy the software hat would unlock?

    >Shouldn't cost ya more than $20.
    >My brother got one for his Ericsson T616, I just found one for an old
    >I888, and I've found them for Treo 270 and 600.

    About a year ago, I learned about cellphones you can buy in, say
    Thailand, use it to get serivce from different service provider in US.
    I didn't understand clearly at the time but it seems that it is locking
    issue that prevents phones form being to use with a different wireless
    service provider. Am I rightt? Anyone?
  10. Archived from groups: alt.cellular.cingular (More info?)

    <amanda992004@yahoo.com> wrote in message
    news:1117922683.819263.172320@g49g2000cwa.googlegroups.com...
    >I am curiously learning all about unlocking in this thread. I am
    > planning to get a new cell phone (And a new service) and would like to
    > understand better about allt his before my purcahse.
    >
    >> That's WAAAAAY more work than you need to do.
    >>I'm assuming this is a "locked" phone to that's the problem?
    >>It's not that it won't take an AT&T SIM, as SIMs are standardized size and
    >>format. It's that it's locked to AT&T in software.
    >>Just get an unlocker.
    >
    > What do you mean? I mean how? By downloading the software?
    >
    >>If that phone accepts software, you can probably just d/l it from one of
    >>the warez groups.
    >>If it doesn't, do a google for that model and "unlock".
    >
    > Do you mean to buy the software hat would unlock?
    >
    >>Shouldn't cost ya more than $20.
    >>My brother got one for his Ericsson T616, I just found one for an old
    >>I888, and I've found them for Treo 270 and 600.
    >
    > About a year ago, I learned about cellphones you can buy in, say
    > Thailand, use it to get serivce from different service provider in US.
    > I didn't understand clearly at the time but it seems that it is locking
    > issue that prevents phones form being to use with a different wireless
    > service provider. Am I rightt? Anyone?
    >
    Yep, it's 'locked" to a service provider and will not work on any other
    system unlessand until it is "unlocked". Works the same in the US, must be
    unlocked.


    bamp
  11. Archived from groups: alt.cellular.cingular (More info?)

    Cingular wants to migrate ATT customers into their system. Even if it
    is all now one company there are still two different computer systems
    so they are moving ATT people over to Cingular. Take your SIM and
    phone into Cingular, sign a contract and they will give you a new sim
    and probably move your data for you.

    On Fri, 03 Jun 2005 21:36:20 -0700,
    see.my.sig.4.addr@nowhere.com.invalid wrote:

    >On 30 May 2005 00:53:49 -0000, Alan Turing <Alan.Turing@bletchleypark.uk>
    >spewed:
    >>I have a new AT&T SIM chip for my unlocked
    >>Motorola C650, but the information that I
    >>get from Cingular -- including from a
    >>former AT&T service center -- is that they
    >>will no longer activate a GSM phone that
    >>uses an AT&T SIM card.
    >>
    >>I have thought of hacking the SIM card to
    >>a Cingular ID number. Two questions:
    >>
    >>1. Is it possible to hack into a SIM card,
    >>past the password protection, and alter
    >>the ID number?
    >>
    >>2. If I succeed in doing that, and I create
    >>an ID that Cingular recognizes as theirs, I
    >>will have created a "random" ID, which may
    >>or may not already be active on the system.
    >>What might be the consequences of that?
    >>
    >>TIA
    >>
    >>
    >That's WAAAAAY more work than you need to do.
    >I'm assuming this is a "locked" phone to that's the problem?
    >It's not that it won't take an AT&T SIM, as SIMs are standardized size and
    >format. It's that it's locked to AT&T in software.
    >Just get an unlocker.
    >If that phone accepts software, you can probably just d/l it from one of
    >the warez groups.
    >If it doesn't, do a google for that model and "unlock".
    >Shouldn't cost ya more than $20.
    >My brother got one for his Ericsson T616, I just found one for an old
    >I888, and I've found them for Treo 270 and 600.
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