Hacking Hardware Picofly - a HWFLY switch modchip

Xoloth

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i ordered 3 raspberry pi pico because other models are not common in my country but seller sent me raspberry pi pico w. is there any way to use this one by cutting it as normal pi pico?
 

BlueBeans

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Has anyone here been unsuccessful doing one of these mods no matter what they tried? Are all switches truly moddable or will there be exceptions?
 

thesjaakspoiler

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Has anyone here been unsuccessful doing one of these mods no matter what they tried? Are all switches truly moddable or will there be exceptions?
All depends on the skills and knowledge of the modders.
There is no decisive manual how to mod which version of the Switch with what eMMC yet.
There is some trial and error involved.
Like the resistor values and wire lengths might prevent one's mod for workig while someone else reports that they succeeded.
 

BlueBeans

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I’m going to rip my hair out and throw this switch against the wall 😪 every time I put the heat shield and cover back on it won’t boot. When those are attached and everything is screwed down I get a constant pulsing blue light. I’ve redone everything a half dozen time. Nothing is shorted. Everything is covered. Idk what to do anymore.
 

abal1000x

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I’m going to rip my hair out and throw this switch against the wall 😪 every time I put the heat shield and cover back on it won’t boot. When those are attached and everything is screwed down I get a constant pulsing blue light. I’ve redone everything a half dozen time. Nothing is shorted. Everything is covered. Idk what to do anymore.
Its high possibility its shorted when you put the shield.
I can only advise, to search it.
Its common problem, i experience it all the time.
If you want safe just use insulated wire, enameled wire is difficult to detect.
 

BlueBeans

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Its high possibility its shorted when you put the shield.
I can only advise, to search it.
Its common problem, i experience it all the time.
If you want safe just use insulated wire, enameled wire is difficult to ev
Its high possibility its shorted when you put the shield.
I can only advise, to search it.
Its common problem, i experience it all the time.
If you want safe just use insulated wire, enameled wire is difficult to detect.
Everything is covered. Idk how it’s possibly shorting
 

abal1000x

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Nothing is shorted to ground, to each other, or anything else.
Theres one left solution, add resistor 47 ohm (so total around 100ohm) to the Dat0 to reduce noise.
You could also placing the D0 cable so that it doesn't near the G-mosfet line (pin 15), to reduce interferences.
 

lightninjay

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Nothing is shorted to ground, to each other, or anything else.
Then you need to post detailed photos of your install, because plenty of people have been claiming "perfect install, but still have problem!" and then when photos surface of their install... we'll just say it isn't always so "perfect".
 

abal1000x

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Do what to the DAT0 line?
Add another 47ohm such that the total resistance around 100ohms.

If your D0 cable touching the pin 15 (the G mosfet) (but not Short Circuit cause theres enameled on it), then try to reposition it, such that the cable not touching the pin 15. The purposes is to reduce noise that might occured.
 

BlueBeans

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Add another 47ohm such that the total resistance around 100ohms.

If your D0 cable touching the pin 15 (the G mosfet) (but not Short Circuit cause theres enameled on it), then try to reposition it, such that the cable not touching the pin 15. The purposes is to reduce noise that might occured.
But the DAT0 and pin 15 are on opposite ends of the pico. I just added the resistor and it didn’t make a difference.
 

cgtchy0412

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I don't want to insist, also because since I don't have the console here I can't be sure that everything is fine.
I want to specify, however, that this is the second time this has happened to me.
My installations are all the same, I attach photos.
To solve, the test time it happened to me I replaced the Rp2040, without touching the existing welds.
I specify that the replaced rp2040, I reused it once flashed again.
So I have my doubts, surely I can say that I have not encountered any problems with the fw 2.67, I don't know if it can be something from the fw with the rp2040 taken from aliexpress for a few euros / dollars.
I have installed 2 mosfets a few times, the other times always single mosfet, hooked on double capacitor.
Can't I do anything to reset the rp2040 gliches?

I mean, I'm confident in my job.
I might be wrong, but I doubt it, I think there is something firmware/hardware wrong.

(excuse my english by Google).
That is more reason you need to get it back :rofl2:, in the end we all can learn something new if you able to fix it hands on.
Make a u-shaped cable around the cap, so got twice the maximum current its flows.
Any diff on the result, like glitch time? or switch will light up:rofl2:?

Can we know the reason that you still need to trimdown zero pcb?

i ordered 3 raspberry pi pico because other models are not common in my country but seller sent me raspberry pi pico w. is there any way to use this one by cutting it as normal pi pico?
Pico W have wireless, i havent tried that yet, but i think you still can trim it like non-W pico.
I’m going to rip my hair out and throw this switch against the wall 😪 every time I put the heat shield and cover back on it won’t boot. When those are attached and everything is screwed down I get a constant pulsing blue light. I’ve redone everything a half dozen time. Nothing is shorted. Everything is covered. Idk what to do anymore.
Please dont do that :rofl2:, juts rip the metal shield then throw it away and install the back cover.. job done. no ripped hair casualties :rofl2:.
But seriously, try push anywhere on the board that can be pushed (ussualy where pico sit), push, wiggle it. if you can push with your hand but still works then most likely it short.
 

abal1000x

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Any diff on the result, like glitch time? or switch will light up:rofl2:?
I use the problematic cable i bought recently on aliexpress 0.2mm.
Using just one cable glitch doesn't work.
Since i already bought it, need to find a way to make it usefull :D
Post automatically merged:

But the DAT0 and pin 15 are on opposite ends of the pico. I just added the resistor and it didn’t make a difference.
Ah yes you right. Its RST line near it.
I think i tired, need to get some rest.
Hopefully your device will worked somehow.
 

BlueBeans

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Just put it back together to shoot a photo. It now is a constant blue light weather or not the shield is on.
 

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