Hi, Posting your imei on forums is not really smart because some people can abuse this. So I advice no to do this. As for unlocking the D900i have a look at www.unlocksamsungonline.com but for D900i you need a FTDI usb cable so original cable won't work. Second option is unlocking it by imei, in this case you don't need a cable but you do need some time as delivery of these codes can take up to a week or so. WBR
Try this first: (If it does not work it is not going to ruine your phone so do not worry) Put Non Accepted Sim Enter *2767*3855# let it reboot(restart) now its ready for permanent. *7465625*638*00000000*00000000# NEXT ENTER #7465625*638*00000000# Now its Permanent Unlock .... The only reason I show you the above method is D900 and T809 coming out about the same time and I do not have D900 for testing but I did it with T809 If it does not work: you have to use USB unlock cable (google search for USB data cable for unlock samsung D900 around $10.00) and use this software from here: http://www.fileshost.com/en/file/24059/FREE-SAMSUNG-TOOL-v3-08-rar.html Good luck
