Wii U blinking blue light, no image

[JoseDelAtaud]

I booted it through the de_fuse. When I turn off the Pico it goes back to Blinking Blue Light.

Is there, by any means, another reason for SLC.BIN/RAW and OTP not being readable and for such erractic boot behaviour?

 

[panther666]

Yes, you find a picture of the wiring here: https://github.com/jan-hofmeier/wii_u_modchip/tree/wiring-diagram/pico_defuse

But for the files go directly to shinys repo

I saw your advice in the thread about the blinking blue light on the Wii U, and I have the same problem
1. Flashed the Pico with defuse firmware
2. Soldered the Pico to the mainboard by the scheme from defuse git
3. Connect the Pico to the computer
4. Powered on the Wii U, and a solid red light above the power button is lit (it does not blink like in many videos)
5. launched PuTTY and entered the correct COM port
6. Press Wii U power button

On the computer there is an endless scrolling output and it keeps trying to trigger the glitch.

If I unplug the Pico’s USB from the computer, the Wii U starts blinking blue and then switches back to a red light.
I re-checked all the solder points, re-soldered everything again, everything is soldered according to the diagram,
and I flashed the defuse firmware onto the Pico once more.
The endless glitch attempt continues.

What could be the problem?

 

[SDIO]

Why don't you use paid the beak?

 

[panther666]

Why don't you use paid the beak?

I don’t know, 'defuse' is the first method I came across.
I prepared everything and soldered it.
Do you recommend looking into 'paid the beak'?
Ok, will try it tomorrow, I was thinking of solving it through defuse, as described in this thread.

Post automatically merged: Apr 9, 2026

Why don't you use paid the beak?

and can i use sd card >2gb like in case of defuse "boot1_slccmpt.img -- NAND-flashable minute boot1, for using >2GiB SD cards"?

 

[SDIO]

Paid the beak requires much less soldering, basically none, that's why even the defuse release page recommends that.

With PTB you would usually install ISFShax, which then can use larger cards. You only need PTB and the small card once to install ISFShax.

For defuse you also initially need the small card to flash the other boot1