Help! How to use Dopod P800W with Cingular?

[dbtjhs]

I just bought a Dopod P800W over sea. When I returned the States, I tried my Cingular SIM card but the system told me that it is unable to connet to the network (with a number 31041 (error code ???)). I have tried to choose the provider manually through the network wizard. However, only several providers from some asian contries are avaible in the list. Is there anyone know how to add additional providers to the network wizard to make the phone work in the States? or should I update the ROM... Any comments and suggestions are highly apprecaited. Thank you.

[thormdac]

well,
i am usind the dopod rom on my german hero. the network wizard does not list my provider, nevertheless it locks into my provider and displays all services as usual.

this could be due to me having unblocked my device so that all sim / providers can be used. i cannot imagine the network wizard to be solely responsible for you not being able to use your provider!!! once you r thinking about unblocking and paying for it, you might want to consider cid-unlocking it via imei-check.co.uk.

[phoenyx]

I am having the EXACT same problem. I am an AT&T/Cingular blue customer and cant get my phone to work. I purchased the phone in Thailand. Every other phone I've purchased there are unlocked out of the box so I dont know why this one would be any different. Is it possible that this phone is locked to a small group of asian networks?

If anyone knows how to fix this, it would be appreciated. :)