i want to unlock my nokia lumia 900, and these service providers have failed to calculate the code, and worse enough I am not a customer of at-t company for them to render me this service. could you advice me on other ways to go about this.
If your L900 is a AT&T version, you may want to check AT&T customer service again since there is a new unlocking bill signed by the US president just yesterday, that means any US phone can be unlocked without the old restrictions and complications.
I had the L900 too and i was able to unlock the phone by just sending a mail to AT&T customer service, i only had to leave the phone IMEI and nothing else. I never was an AT&T customer and by then i was living in Brazil and i bought the L900 on ebay. The process took a few days and AT&T people gave me the unlock code.
That was before the US phone unlocking ban law, now that law is temporarily overturned, should be less restrictions and difficulties to unlock US phones.
what is the reliable unlocodes service providers were i can purchase the code for my Nokia lumia 900. i purchased it on Ebay and its locked to at-t of which im not a customer.