[coldconfession13]

Wirelessly posted

No if its unlocked just load the imei and pin on att bis site and you should be fine. Send service books and register phone

[marc996miami]

I received my Rogers unlocked 8900 today. I am on AT&T and already use BES thru mailstreet do I need to make any changes on my ATT account as I dont have a BIS login page as I have no need.

[prepstab503]

Originally Posted by dolo

Tried to create an account via web for ATT BIS. I input device PIN and IMEI and received this error:

This BlackBerry is registered with a different service provider. Please re-register this BlackBerry and verify the URL matches the one provided by your service provider.

Do I need to formally speak to an operator before this can happen? Trying to push the service books to the phone..

ATT operators are closed on Sundays...

Thoughts, advice?

im having the same issue, going from unlocked tmobile 8900 to at&t..i get the same error when trying to input my PIN and IMEI into ATT BIS. any suggestions??

[NJBlackBerry]

You must find the prior owner for the device and tell them to delete their BIS account on T-Mobile.

[prepstab503]

hey thanks for responding,

allegedly, i purchased a NIB 8900 from ebay that was only opened for the purpose of unlocking? is there any way for me to delete the tmobile BIS myself?

[sparco_8900]

i just switched from tmobile to att and took my unlocked bb8900 with me. i already know that att does not support uma, that is almost a strictly tmobile thing. but their phones DO have wifi capabilities!! so i am wondering if there is a service book that can rewrite some protocols so my phone can connect to my wifi. good luck and thanks for the help

[littlefaywd]

although i'm not using at&t but the info still help. maybe some day i'll choose at&t. lol