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Old 10-12-2006, 01:22 PM   #1 (permalink)
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Default Swap T-Mo to Cingular - Changing Handheld without Calling Support

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I just bought a BB 8100 on T-Mobile. I used it initially with the RIM data plan on T-Mobile.


At the same time I already had a BB account @ Cingular. My plan was to swap my 8100 off T-Mobile (weak signal at my house) onto Cingular.

What I found was that after I got the 8100 activated on T-Mobile, I removed the SIM from my 8700 Cingular and put it into the 8100. Instantly my BES started working.

When I went into the Cingular BIS site, I put in the new PIN AND IMEI and it simultaneously removed it from the T-Mobile site.

No need to call T-Mobile and have them blank the PIN out.

It appears that so long as you have the PIN and IMEI that you can freely bove between carriers without having to un-enroll (for lack of a better description) from your old carrier.
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Old 10-20-2006, 10:41 AM   #2 (permalink)
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I tried this with my unlocked pearl but had no such luck, maybe it is because i just added the bb plan? i think i need to contact tmobile to release the pin but i dont have an account with them i dont know how they will react to this...
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Old 11-01-2006, 11:32 PM   #3 (permalink)
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Same issue here. I forgot to cancel my tmo.blackberry.net account on my bb while I was still at TMO. I switched to Cingular with my unlocked 8700g. I also don't remember my login and password with the BIS account at TMO. So I tried to "Create New Account" via "Personal email setup". Then I get the message "An account already exists for this PIN". It seems RIM now owns my PIN for my old TMO/BIS account.
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Old 11-04-2006, 08:10 AM   #4 (permalink)
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I did a SWAP devices. Not create new account.

Entering both the IMEI and PIN worked.

Worth noting that I already have BB service on both Cingular and T-Mo.

Order of events was.

1. Existing user of 8700C on Cingular
2. Bought 8100 Pearl from T-Mo
3. Added BB service to T-Mo account (pre-existing line)
4. Cradled 8100 which swapped pins on my BES (Mailstreet) & re-did Enterprise Activation
5. Used the device on T-Mo for a week to be sure I liked it
6. At the end of the week, took my Cingular SIM and put it into 8100
7. Powered up the 8100 and BES came online with no further enterprise activation needed - I think because all BES cares about is finding the PIN #
8. Decided to activate my BIS -- logged into Cingular and did the swap BB device putting in the new IMEI and PIN. This de-activated the device through T-Mobile and activated it in Cingular.



-at the time I did this I had simultaneous active BB accounts with t-mo and cingular and had not cancelled either - this may have helped the process.
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Old 11-06-2006, 03:46 PM   #5 (permalink)
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are you sure cingular has better service in your house? i thought tmo and cingular shared the same towers.
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