Help unlocking 6820

Phone restricted message
*Nokia - 6820
*IMEI# - 352968000736076
*Country - USA
*Network - ATT/Cingular
*Previous codes attempted? none

 

http://forums.afterdawn.com/thread_view.cfm/680622

codes at the bottom

 

This one?
#pw+ 21 49 55 73 52 01 35 2 +7# <- USE THIS ONE

 

Recommended CODE :#pw+455407571366612 +7#

 

I get "cannot undo restriction". does that mean I need to bring it to a shop to get it un-hard-locked?

 

try
#pw+713140232123454+1#
then stop

 

"cannot undo restriction"

 

i can probably get the phone flashed, right?

 

try this last one
#pw+703 150 232 123 454+1#
then you might have to get it flashed

 

yea, didn't work. Can you recommend a mail-in service to get the phone flashed? Thanks

 

unlocking shop

 

it's like $50 here in Chicago! I am going to return the phone to seller, I think. Thank you so much for your help.

 

really sorry about that

 

thank you so so much. you guys are so nice!!!