Ati bios 9550 is lock Help me 2 unlock

[dEXter_27]

bios is lock i need help!
I want to change a bios version to 9600 pro
Memory Elixir 250/200
i try to use "Atiflash - p 0 -st bios.bin"
but:
Old mem seting :7180
New mem seting :7180
Old ssid : 4153
New ssid : 4150
SSID Mismatched
Error = 0FL01

:knock: :hotbounce :knock:

Plese Help Me!