need help Wiikey fusion + MegaDrive V3

[Manuu]

Hi everyone, I'm in trouble with my gamecube and wiikey fusion. I try to connect my wiikey fusion using MegaDrive V3 But when I plug SD reader to wiikey my gamecube don't boot..power light flashing and nothing more. When I disconnect SD reader ribbon, my gamecube boot properly.

I tried with and whitout SD card
I tried new ribbon

Gamecube Pal Dol 001
Wiikey fusion (not wasp) , I don't know firmware because I can't boot on it now
MegaDrive V3 from Badassconsoles

Any idea ?

 

[Diminuendo]

You need to press the WKF button and then update your firmware

 

[Manuu]

Thx for your reply, you mean pressing 29pin/ground switch wen I power up my gamecube ? I will try that. For WKF firmware I put firmware 1.5 on my sdcard using wbfs manager. But sometimes I can read it’s better to downgrade to firmware 1.0 to enable swiss autoboot. What’s better ? Thx

 

[Manuu]

I still have the same problem, my gamecube doesn’t boot when wkf sd reader is plug (just 1sec power light flash). Without sdreader I can access to wkf menu (fmw 1.5). I don’t know what can I do to fix this... It’s look like ground problem.