I am in trouble with unlocking.

Phone is : NOKIA 3650
Provider: AT&T USA

IMEI: 351102500752182

This will be a big challenge for anyone, so please only experienced users reply.

I have used the following four codes and I am left with only one try on my phone.

provider: 24407
asic type: 2
calculator: v2
#pw+883801713110600+1#

provider: 31038
asic type: 2
calculator: v2
code 1: #pw+812831443050730+1#

provider: 24407
asic type: 5
calculator: v2
code 1: #pw+492017725022415+1#
code 7: #pw+145414772376413+7#

I was very much sure on the last one, thats why I tried it.
For the first Three I got message "Not Allowed"

For the last one I got message " CODE ERROR"

Plz help.