[Richb]

I used azmmza (unlock8800.com - highly recommended) to unlock my 8800. Worked perfectly with T-Mobile SIM. Also worked with my old ATT (Cing. blue) SIM BUT with the ATT SIM, Cingular does not push Blackberry Internet Browser service book, so I had no BBerry Internet browser. Couldn't live with that, so I upgraded my account to Cingular (thanks to Stinsonddog for his note).
Short version - the unlocked 8800 works on T-mobile just fine.

[xboostingti18tx]

Wirelessly posted (BlackBerry8800/4.2.1 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/102)

I got my 8800 unlocked and just went to a T-Mobile dealer and they gave me a regular T-Mobile SIM and it works perfectly

[azmmza]

Originally Posted by Richb

I used azmmza (unlock8800.com - highly recommended) to unlock my 8800. Worked perfectly with T-Mobile SIM. Also worked with my old ATT (Cing. blue) SIM BUT with the ATT SIM, Cingular does not push Blackberry Internet Browser service book, so I had no BBerry Internet browser. Couldn't live with that, so I upgraded my account to Cingular (thanks to Stinsonddog for his note).
Short version - the unlocked 8800 works on T-mobile just fine.

thanks I am glad you are enjoying your new 8800

[sodirty]

hmm. i was running the 8100 with my old att sim. using opera mini to browse the net. now i upgrade to the 8800 and im trying to figure out how to get ramble IM to work as well as opera mini or any other browser for that matter. any suggestions?

[lintakoc]

do i need a valid cingular sim card to unlock the phone? i cant get the unlock box to come up on my 8800 with my tmobile sim card.

[azmmza]

Originally Posted by lintakoc

do i need a valid cingular sim card to unlock the phone? i cant get the unlock box to come up on my 8800 with my tmobile sim card.

no
go to my website for instructions on how to unlock your 8800

http://www.unlockblackberry.org/imag...ructions88.pdf

[gsmps]

Originally Posted by lintakoc

do i need a valid cingular sim card to unlock the phone? i cant get the unlock box to come up on my 8800 with my tmobile sim card.

The only Blackberrys that need a sim card inserted to perform the unlocking steps are the 87xx series

For all other Blackberrys you dont need a sim inserted

Also contrary to popular belief once you are in the sim card menu on the 8700 / 8800 you just need to hold down the Alt key as you type in MEPE to bring up the box to enter the unlock code

[jfulen]

You can get the phone unlocked from the carrier at no charge, but I am assuming you have an account with Cingular.

I use a T-Mobile SIM in my Cingular 8800. Cingular unlocked it for free.

[RotKT]

Originally Posted by azmmza

no
go to my website for instructions on how to unlock your 8800

http://www.unlockblackberry.org/imag...ructions88.pdf

and how do we obtain the unlock code.
(im a newbie in unlocking business)
thanks