[chirp_users] Can't write FT-2800M

Hello !! I use Debian 6 (squeeze) and I'm trying to program a Yaesu FT-2800M. I read it, but when I try to write it, this tells me "ERR 15". I have done several tests (including Windows XP). I use the same interface with which I program the handys FTH-2009 and VX-200. Can anyone help me ?. Thank you very much !! zenbaki LU6ENY