Hacking Hardware Picofly - a HWFLY switch modchip

ppeach

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QuiTim

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is this the dat0 adapter link :
https://www.aliexpress.com/item/1005005316412395.html
If yes lets inform the rest of the members to avoid it at any costs!

https://aliexpress.com/item/1005005315891694.html
I purchased this type of 4-anchor adapter.
What you actually receive is the 3-anchor piece of garbage in the attached picture.
I have bought one from multiple sellers and they were all the same.
I think at this point the best solution is https://munia.io/devices
It does not have any anchor points so you need to use UV mask or glue but at least you don't risk fu*king the emmc.
*Edit: they seem to lean to the right by default so I guess bridging the second pin does not matter after all.
 
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abal1000x

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https://aliexpress.com/item/1005005315891694.html
I purchased this type of 4-anchor adapter.
What you actually receive is the 3-anchor piece of garbage in the attached picture.
I have bought one from multiple sellers and they were all the same.
That is 3 point.
Open the image from the review its 3 point.
And the 4 point doesn't have 2 test point, only 1 which is the Dat0.
 

ppeach

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That is 3 point.
Open the image from the review its 3 point.
And the 4 point doesn't have 2 test point, only 1 which is the Dat0.
I made a mistake copying the link.
I ordered a dat0 adapter with 4 anchors.
Not the garbage that kills emmc with 3 anchors.
Post automatically merged:

hwfly official sells newer newer adapters than 4 anchor.
If you buy a dat0 adapter with a 4 anchor product image from most stores, you will probably receive 3 anchor garbage.
 

Phantomas77

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FWIW I ordered those ~3 weeks ago and received the correct 4-anchor adapter.
Ordered back in March from that store and got good ones. Ordered on 20th of May and got garbage.
Asked a refund and the seller won't give money back, waiting for the Ali to intervene.

I think at this point the best solution is https://munia.io/devices
It does not have any anchor points so you need to use UV mask or glue but at least you don't risk fu*king the emmc.
*Edit: they seem to lean to the right by default so I guess bridging the second pin does not matter after all.

Haven't tried them yet, but those are Frank's, and he knows well his stuff ;)
 

POPOLO

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Hello, i bought new switch oled and get toshiba nand
when i press the power on
Picofly logo show normaly, when i press volume -+ to get OFW, just show blackscreen
I unplug battery and plug in back, i got error ** (RST)
I change RST cable and now got =**
Picofly logo show again and cannot get into OFW
Just blakscreen again

So i add more resistor cause i think toshiba need more resistor (47+47)
And now got =***
PI2040-Zero PIN13 -> SCL PIN12 ->SDA
 

jmmc

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I’ve just received rp2040-tiny, but when I’m trying to flash the firmware I can’t get the device “storage” to drag and drop the firmware. It flashes static red on the usb-c adapter.

I tried with and without boot button pressed.

Anyone has the same problem?
 

ypeeLs

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Hello, i bought new switch oled and get toshiba nand
when i press the power on
Picofly logo show normaly, when i press volume -+ to get OFW, just show blackscreen
I unplug battery and plug in back, i got error ** (RST)
I change RST cable and now got =**
Picofly logo show again and cannot get into OFW
Just blakscreen again

So i add more resistor cause i think toshiba need more resistor (47+47)
And now got =***
Your boot0 is corrupt, I fixed mine with
 
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QuiTim

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I’ve just received rp2040-tiny, but when I’m trying to flash the firmware I can’t get the device “storage” to drag and drop the firmware. It flashes static red on the usb-c adapter.

I tried with and without boot button pressed.

Anyone has the same problem?
they have a issue with ffc usb cable, it does not fit very well on the connector. Try to reseat it a couple of times, hopefully you will get it in place.
 
Last edited by QuiTim,

Flaviocarvalho

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Hard to see in the pic, but see attached pic for all emmc points that are connected to something (oled emmc board for reference)
So....i can leave the the unmarked ones without solder ball?
Post automatically merged:

Hard to see in the pic, but see attached pic for all emmc points that are connected to something (oled emmc board for reference)
I guess i can leave some points wihtout solder balls to pass jumper wire fron clk and cmd right?
 
Last edited by Flaviocarvalho,

bilalhassan341

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I have a question. My Switch emmc is corrupted and I don't have a backup btw I have another switch backup and prod key. Can I use the other backup or nintendo will ban the switch because they both have same seriel number. Or should I go with a blank product key with zero seriel?
 

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deeps

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So....i can leave the the unmarked ones without solder ball?
Post automatically merged:


I guess i can leave some points wihtout solder balls to pass jumper wire fron clk and cmd right?

yep, the unmarked ones aren't connected to anything on the switch motherboard. according to the emmc standard, they shouldn't be connected to anything in the emmc chip either. You need to keep some of the unused solder balls for the emmc to self-align properly when heating it though.
in theory it's possible to run jumper wires from clk and cmd, but I think it would be rather difficult to mount the emmc flat enough with multiple jumper wires in place.
 

HackMan37

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It's possible to use the picofly_toolbox on IRAM? or that tool use more memory?

The question it's because i removed the usb c port with soldering iron and can't update by physical on rp2040.

*NOTE, THIS IT'S JUST MY CASE*

Another thing it's that using a rp2040 xiao version, the gliching process was very unestable, sometimes the "No Sdcard" screen boot in 2 seconds, but others just take 30-40 seconds.

When put an rp2040 aliexpress version, i got constancy 2 seconds or less on every "No Sdcard" screen, that's too curious.

Everything using V2 Flex on my lite.

Not able to boot other's payload that ums-loader until now.
 

FreeLander

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Check your clk trace, and maybe your mosfet setup is shorted somewhere, make sure the gate isnt shorted to the drain or source
I got that error too and lost hope.
Correct me if I'm wrong: when fully installing a MOSFET, is it normal for D and S to show continuity ( if G was somehow triggered), but G should not to either?
Post automatically merged:

Hi @rehius. I've seen quite a few people complain about the *== error (dead CPU, poor wiring).

Some say it's CLK, CMD, and others think it's MOSFETs. Would you kindly clarify what wiring I should think of when I see this error? Thanks <3
 
Last edited by FreeLander,

darviral

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It's possible to use the picofly_toolbox on IRAM? or that tool use more memory?

The question it's because i removed the usb c port with soldering iron and can't update by physical on rp2040.

*NOTE, THIS IT'S JUST MY CASE*

Another thing it's that using a rp2040 xiao version, the gliching process was very unestable, sometimes the "No Sdcard" screen boot in 2 seconds, but others just take 30-40 seconds.

When put an rp2040 aliexpress version, i got constancy 2 seconds or less on every "No Sdcard" screen, that's too curious.

Everything using V2 Flex on my lite.

Not able to boot other's payload that ums-loader until now.
I have same problem with my lite after install i get "no sd card" then when i insert sd card then black screen then when i boot to ofw using +&- button it's blue screen 😅
 
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abal1000x

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It's possible to use the picofly_toolbox on IRAM? or that tool use more memory?

The question it's because i removed the usb c port with soldering iron and can't update by physical on rp2040.

*NOTE, THIS IT'S JUST MY CASE*

Another thing it's that using a rp2040 xiao version, the gliching process was very unestable, sometimes the "No Sdcard" screen boot in 2 seconds, but others just take 30-40 seconds.

When put an rp2040 aliexpress version, i got constancy 2 seconds or less on every "No Sdcard" screen, that's too curious.

Everything using V2 Flex on my lite.

Not able to boot other's payload that ums-loader until now.
xiao is bad.

even on my other project on uv sensor, it broke my smartphone power ic, when i use it as otg.

I have used seeeds studio product couple of time, and their design is bad, usually unstable. I also experience with their mtk.xxxx also unstable.


This is first time i use waveshare and impress with their design. its more stable.
 
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