unlocking my 1600

Can someone help me unlocking my nokia 1600?
Make/model phone: nokia 1600
IMEI #:354527019099245
Country the phone is locked in: Netherlands
Provider the phone is locked to: AH mobile

 

ENTER CODE WITH OUT SPACES
Remove sim first, press #
Press * 3 times fast for (p)
Press * 4 times fast for (w)
Press * 2 times fast for (+)
Verify code before pressing the last #.
"Code error", don't try again!!
"Phone restrictions off", it's unlocked!!

#pw+885 441 601 241 337+7#

 

Unfortunately it says "Code error". So this is it i guess?

 

Read-
http://forums.afterdawn.com/thread_view.cfm/405992
And try other sim,its possible already unlocked.