How reformat memory Nokia 5800d-1 full memory

SOURCE: what is the unlock code for my nokia 5800d-1 type

I don't know of a code but I do know of a download..
http://torrent.dl4all.com/search/Nokia%20Security%20Code%20Resetter%20v1.5%20(All%20Nokia%20Phones)

SOURCE: I'm need unlock my Nokia

If registration failed it could be due to a couple of problems

first :phone locked, cant help you sorry
second: try to clean Sim card slot
third: try if the SIM card is working (check for damages)

SOURCE: restart or reformat nokia e

restore factroy settings just press *#7370# and default security code would be 12345

SOURCE: how can i unlock my Nokia 5800d-1 rm 356?it is

sir if you forgot the password or don't know the security code, You have to master reset the phone. Contact your service provider to get a master reset code at free of cost....You can also visit http://www.unlock-zone.com/ and can see different options there to get unlock code for a price. Choose any price appropriate for you.................

SOURCE: how to connect gprs in nokia 5800d-1

Gprs on ''gprs compaitable handsets'' works only through specific gprs settings, the settings are different on every network. To activate gprs on your phone you should first get the gprs settings, then install and activate the settings as default. You should contact your service provider, they will send you the gprs settings, then do as i mentioned above. Rate my answer...