1. Minoru's Avatar
    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.

    05-28-10 04:53 PM
  2. nshih422's Avatar
    I believe that is not possible. Could be wrong.
    05-28-10 05:22 PM
  3. ima757#CB's Avatar
    yes it can be done. I did it with mine. search and you will find the answer.
    06-24-10 05:42 PM
  4. Mustafakhan's Avatar
    How to unlock Blackberry 8800 with a software (free).
    07-28-10 07:02 AM
  5. NorrisCell's Avatar
    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
    08-14-10 12:13 AM
  6. brentlacydotcom's Avatar
    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....
    08-16-10 10:32 AM