Problem with IMEI code Samsung D900i

Yesterday I was something to tinker with some special codes (eg * # 06 #, you know them) for mobile phone, and apparently I had a key for a hard reset . Result is that IMEI code is reset to 000,000 ... (all 0'en). Now I find no network with one mobile phone. What I do best? The IMEI code is illegal and was totally not my intention. I have the original IMEI code on one invoice and the box, I can be retracted by Samsung itself? Or something else?

This is really stupid of me, a stupid code to type I can be mobile virtual blue
The D900i is a fact, purchased in late September
need someone advice...

Thanks!

ya that is not handy, hmm try this: * 2767 * 3855 # (you need to your files on your microSD card if you have, and phone numbers to your sim copy)

wait 10sec, then turn your phone off. and then try..

These special codes that you all have, there is no service menu or something similar here? Or a "special" configuration window? Where the IMEI number you can write?

Failing that, I think the best you can send the phone back. I searched but find nothing.......