Thanks, I already called that people, but they only repair cameras imported
by them to Argentina. That's not my case.

Darrell A. Larose wrote:
The original firmware is only available to authorized Nikon Service outlets;

There's no official service here in Argentina...
And I don't need an "update", I just need to restore original firmware.

Argentina,
Eduardo Udenio y Cia.S.A.C.I.F.I.
Ayacucho 1235, Buenos Aires (1111), Argentina

Tel: +54-11-4811-1864
E-mail: