Try the last 4 digits of your phone number both ways. ex: If your number
is 808-555-2368 try 2368 ans 8632. You can also try the same with the
last 4 numeric digits of the IMEI.

catherine yronwode wrote:
> What is the SIM card default unlock for a Cingular SIM card in the
> usa?
>
> That is, I've unlocked the subsidy from the Motorola cell phone but
> now I can't use the original Cingular SIM card in any phone? What did
> I do wrong?
>
> Here's what happened:
> 1. I called ATT/Cingular and requested a "subsidy unlock code" which
> was emailed to me a day later (see email below).
>
> 2. The ATT/Cingular instructions said I had to put a non-Cingular SIM
> card in so I put in a T-Mobile SIM card (which was working fine in
> another phone).
>
> 3. So, I popped the non-ATT/Cingular SIM card in the Motorola RAZR
> and the Motorola RAZR asked for the 8-digit subsidy unlock code which
> I entered and hit OK and it said it was unlocked. I made a phone call
> using the T-Mobile SIM card to prove the subsidy unlock worked.
>
> 4. HOWEVER, when I put the original working Cingular SIM card back
> into the Motorola phone, it then kept saying "Enter Unlock Code"
> where it expects 4 digits. I tried 0000, 1245, 5678, 0123, 9999,
> 6666, etc (every combination I can think of) but I can't get past
> this Cingular SIM card unlock (which isn't the subsidy unlock).
>
> 5. In fact, when I put ANY SIM cards (T-Mobile or Cingular/ATT) into
> the now-unlocked Motorola cell phone, it says "Enter Unlock Code" and
> then when I enter "0000" and hit "OK" it says "Unlock Code Incorrect.
> Try Again".
>
> It must be in the phone 'cuz the SIM cards work find in a spare
> phone. What is the default unlock for the Motorola RAZR if it is not
> what I tried above?
>
> WHAT is going on?
>
> WHAT IS THE DEFAULT SIM CARD UNLOCK if it isn't the ones I tried
> above?
>
> catherine
>
> HERE IS THE EMAIL FROM ATT/CINGULAR (modified to obfuscate the code
> itself):
>
> Your subsidy unlock request was received and processed, see below for
> details:
>
> IMEI #: ###############
> Unlock Code: ########
>
> (To verify IMEI # press *#06#, this will poppulate a 15 digit # on the
> screen. If this sequence does not work, simply pull the back and
> battery out of phone and the IMEI will be listed on the back of the
> phone under the battery.)
>
> Caution: If this process is unsuccessful five times in a row, the
> phone will be permanently locked to the new at&t network. Do not
> attempt to enter the code more than one (1) time total. Instructions
> below will assist you in unlocking your device, if these steps are
> unsuccessful please contact us at 1-800-331-0500 or (916) 843-4685
> from overseas.
>
> Motorola
> Subsidy Unlock Process
> With non-Cingular SIM inserted in device
> 1. Turn on handset
> 2. Enter unlock code when prompted
> 3. Press OK
> 4. Device should now be unlocked.