Hacking Hardware Picofly - a HWFLY switch modchip

[deeps]

So how do you guys stick mosfet to the board and rp2040 to the shield?

Double sided tape? Kapton tape? Solder mask?

solder mask for the mosfet and a few layers of double sided tape on the sides of the 2040 to match the height of the chips on the board

 

[kkkk134]

When turning on the chip, the blue light changes to green light, but an error appears on the screen. Please restart the switch

Post automatically merged: Apr 16, 2023

When turning on the chip, the blue light changes to green light, but an error appears on the screen. Please restart the switch

Where is the problem

 

[deeps]

yeah im thinkin that too... emmc cover
the rp2040 back side, gonna fit there? (kapton tape prepared)
View attachment 365253

View attachment 365254
those make rp2040 not flat T T

The smaller black chip marked in red (LDP?) is the tallest point on this side of the rp2040, and when mounting on top of the emmc shield it will stick out south of the emmc shield = not a problem. I'm measuring here with an opened switch lite and an rp2040 and it looks fine to me.

 

[nico77]

WARNING* this is only imagine question
ive been imagine this alternative...
(this only for people who only use digital games from eshop)
(warning this is only idea)

if we cut the cartridge reader, is it gonna still working? the audio jack ?

this position look fit, but sacrifice the cartridge reader... (rp2040zero sleep there)

this flex after cutting, only use for audio jack

work? or nay?

 

[rsilveira1991]

I did on my first mod, and it's a bear. You are REALLY likely to accidentally rip pads off if you are not very diligent at securing the wire from flopping around.

I had to repair several traces, and ultimately ended up using AWG40 magnet wire to do a majority of the mod, but left AWG30 for the 3.3v and gnd, as well as the mosfet wiring.

Thanks man.
I will do that Way.
I use here a very thin enamel wire for everything. I don't know the thickness, it's from Xbox One Power Supply coil. so, I will try to use this and let the AWG for CPU, 3.3V and GND.

 

[Adran_Marit]

WARNING* this is only imagine question
ive been imagine this alternative...
(this only for people who only use digital games from eshop)
(warning this is only idea)

if we cut the cartridge reader, is it gonna still working? the audio jack ?
View attachment 365256


this position look fit, but sacrifice the cartridge reader... (rp2040zero sleep there)
View attachment 365258

this flex after cutting, only use for audio jack
View attachment 365257

View attachment 365259

work? or nay?

if its anything like the 3ds, part of those traces will be needed to power on.
IDK just test with the whole flex remove for now?

 

[juanvlc]

Sorry @rehius for disturb. Do we have any tool for dumping firmware?
Would be very difficult to implement it on picotoolbox?
Sooner or later someone will get one of this "rp4020" based chips flying arround and would be interesting check what they have inside. Don´t know also if picotoolbox would be compatible...
Best regards

 

[Frullone]

Simple question: I have a broken flex cable lying around. Is it possible to salvage the mosfet and use it on a standalone mosfet install?

 

[rsilveira1991]

I did on my first mod, and it's a bear. You are REALLY likely to accidentally rip pads off if you are not very diligent at securing the wire from flopping around.

I had to repair several traces, and ultimately ended up using AWG40 magnet wire to do a majority of the mod, but left AWG30 for the 3.3v and gnd, as well as the mosfet wiring.

I've made now this file in scale Thickness of the Wires. just let the PDF in 100% scale.
Put AWG30, AWG36 and AWG40.
Mine looks like AWG40. I hope it helps some one else that don't know how it's in hand.

 

[nico77]

if its anything like the 3ds, part of those traces will be needed to power on.
IDK just test with the whole flex remove for now?

hmn... idk if it need power or not.
but my idea so, it only to make the audio jack workin, cuz on that image, you can see the layout audio and cartridge reader is different path.
green for audio jack path >

and it connect to jack PCB audio (see image)

but its only teori...



and sadly
i dont have extra cartridge reader...

maybe someone who have a broken cartridge reader can try , is the audio still workin
hehehehe

Post automatically merged: Apr 16, 2023

The smaller black chip marked in red (LDP?) is the tallest point on this side of the rp2040, and when mounting on top of the emmc shield it will stick out south of the emmc shield = not a problem. I'm measuring here with an opened switch lite and an rp2040 and it looks fine to me.

i watch this video again... and find out hes using emmc position
video:
-watch minute 10:23
on top emmc position

and he manage to close metal shield without problem
also it look clean

 

[Adran_Marit]

hmn... idk if it need power or not.
but my idea so, it only to make the audio jack workin, cuz on that image, you can see the layout audio and cartridge reader is different path.
green for audio jack path >
View attachment 365260

and it connect to jack PCB audio (see image)
View attachment 365261
but its only teori...



and sadly
i dont have extra cartridge reader...

maybe someone who have a broken cartridge reader can try , is the audio still workin
hehehehe

Post automatically merged: Apr 16, 2023

i watch this video again... and find out hes using emmc position
video:
-watch minute 10:23
on top emmc position

and he manage to close metal shield without problem
also it look clean

I mean like, just disconnect the flex from the motherboard, if it still powers on and works, then there is more of a chance of your idea working

 

[nico77]

I mean like, just disconnect the flex from the motherboard, if it still powers on and works, then there is more of a chance of your idea working

i think i saw some videos people who try picofly without the flex, it still can power on.

minute 17:13
no cartridge reader plug

maybe speaker still workin. idk

if someday i have extra cartridge reader i can try.
cutting them.

 

[swordeye2]

Are there other CLK points for NSW lite? I just found out why mine is pink violet error. The trace got ripped off

Post automatically merged: Apr 16, 2023

Are there other CLK points for NSW lite? I just found out why mine is pink violet error. The trace got ripped off

 

[Kiuxn]

WARNING* this is only imagine question
ive been imagine this alternative...
(this only for people who only use digital games from eshop)
(warning this is only idea)

if we cut the cartridge reader, is it gonna still working? the audio jack ?
View attachment 365256


this position look fit, but sacrifice the cartridge reader... (rp2040zero sleep there)
View attachment 365258

this flex after cutting, only use for audio jack
View attachment 365257

View attachment 365259

work? or nay?

If so, you don't need to sacrifice anything.

 

[nico77]

If so, you don't need to sacrifice anything.

dayuummm!!!
ehe thats a nice idea.. hole for the led light

yeah, the sacrifice is only alternative...
if dont wanna remove rp2040 usb c

 

[lightninjay]

WARNING* this is only imagine question
ive been imagine this alternative...
(this only for people who only use digital games from eshop)
(warning this is only idea)

if we cut the cartridge reader, is it gonna still working? the audio jack ?
View attachment 365256


this position look fit, but sacrifice the cartridge reader... (rp2040zero sleep there)
View attachment 365258

this flex after cutting, only use for audio jack
View attachment 365257

View attachment 365259

work? or nay?

If you cut right on the pink line with an exacto knife, you should theoretically be able to make a mini flex that will still work in the large flex receiver, you'll just need to align it before closing the flex connector's latch. That would only hook up the headphone jack and completely leave the Cartridge reader "off-the-hook" so-to-speak.

However, I see no reason for this mod, considering how cleanly the RP2040-zero can already be mounted with a little bit of planning.

 

[ngoanrazor]

Please help me, I make broken CLK point and now, sw lite can not boot, how to fix this problem?

 

[lightninjay]

Please help me, I make broken CLK point and now, sw lite can not boot, how to fix this problem?

Please do not double post, I responded to your question in the other topic.

 

[elNeilo]

First of all thank you to all the people involved in this project since the begining, sharing information, making test and making such a great engineering job. Well done guys, congratulations!

I have been looking for some information about the update from 2.5+unlock to higher firmwares but i have some doubts about that.

Right now i have a fully working switch v2 (skhynix) with picofly 2.5+unlock. Boots fine atmosphere in emunand and stock sysnand ( also from the no sd screen holding vol+ and vol-).

So, how can i update to the latest firmware version? I mean i know that i need to reflash manually from usb the latest version but should work if then i wired it as it was? I need to do backups from boot0 and boot1 and then restore them?

Iam thinking on wiring another rp2040 zero that i just have prepared with the new fw. Could that make some trouble with the backups due to the id of the pico?

Also I read that v2.5+Unlock has an issue with boot0 backup, should i fix the boot0 File?

Thank you for the support

 

[nico77]

View attachment 365274
If you cut right on the pink line with an exacto knife, you should theoretically be able to make a mini flex that will still work in the large flex receiver, you'll just need to align it before closing the flex connector's latch. That would only hook up the headphone jack and completely leave the Cartridge reader "off-the-hook" so-to-speak.

However, I see no reason for this mod, considering how cleanly the RP2040-zero can already be mounted with a little bit of planning.

ok thx

yes.. this only idea...

Spoiler: spoiler

since i dont have a proper heat gun/blower solder to remove rp2040 usb-c(prob ill go to small service smartphone center,ask them to remove usb-c port), this is "my alternative".
actually my alternative wasnt cut them, but just take em off, so no jack and just use the speaker.

and my other alternative
if i dont wanna remove the rp2040 usb c, i can place the rp2040 there...
use that cartridge reader place.
but this alternative only for me.
so the rp2040 no mod needed.