[Minoru]

If I had an unlocked AT&T 8820 could it be used on T-Mobile's UMA? Would the service book for it push down as it not carrier locked? Has anyone done this? I searched the forum but the only reference to it I found was from a long time ago before T-Mobile even had the 8820.

Thanks!

[nshih422]

I believe that is not possible. Could be wrong.

[ima757#CB]

yes it can be done. I did it with mine. search and you will find the answer.

[Mustafakhan]

How to unlock Blackberry 8800 with a software (free).

[NorrisCell]

How to unlock Blackberry 8800 with a software (free).

Over/under on number of posts before the ban: 7.5

To the OP, there are stories of it being done on models that are common in the TMO line, such as the 8820. Never tried it myself though

[brentlacydotcom]

Mine worked well (ATT Branded, Unlocked on TMO). the only issue i experienced was with the handoff from UMA to cell would sometimes drop calls. a lot of searching, reading, and trial....