Hacking Hardware Picofly - a HWFLY switch modchip

[Dee87]

Good afternoon I ran into an interesting problem.
Switch OLED (FW 2.67). DAT0 adapter, the contact is well soldered. Diode test value 0.800v. Same value when pin is already soldered to rp2040 Zero (wire 0.1mm).
Approximately once a week at the next reboot of the switch, I get the yellow color of the LED and it loads only in OFW.
I check the contact to the ground in the DAT0 diode mode and I already get about 1.500v. Strange.
I just unplug the DAT0 wire from rp2040 and immediately solder it back. Immediately a diode test shows the correct 0.800v. Everything works fine again until the next similar event.

I tried to change the wire from the adapter to rp2040 to a thinner one, I also changed the resistor (the correct one is 47Ohm), but the problem repeats regularly.

Some kind of mysticism, any ideas why this happens and how I could avoid this in the future? Can I replace the rp2040 board

what dat0 adapter are u using ?

is it set properly ?.

not sure what the issue is but i would get rid of that dat0 adapter and eather use a 4 anchor or set a perm adapter and reball the emmc

 

[Makc16384]

what dat0 adapter are u using ?

is it set properly ?.

not sure what the issue is but i would get rid of that dat0 adapter and eather use a 4 anchor or set a perm adapter and reball the emmc

i'm using 4 anchor adapter and it's installed correctly.

 

[trixter]

first of all clean ur flux after soldering

second use shorter wires for ur mosfet , what wire diameter is that ? looks like 0.1mm if thats the case u need atleast 0.2mm wire

also u can use 0.1mm wire for 3,3v specially if u use 0.1mm for ground then also use the same wire thinkess for 3v

somehow there is problem with firmware. initially flashed 2.72, but after post tried to flash 2.67, instaboot! Problem solved.

 

[Dee87]

somehow there is problem with firmware. initially flashed 2.72, but after post tried to flash 2.67, instaboot! Problem solved.

mh okay well then thats good

i hvaent tried 2.72 yet only have 2.7 installed with no issue

 

[abal1000x]

Today i learning on dat0 adapter.

Here is the problematic dat0 adapter

Distance between two black lines is 1mm.

While the distance between pin in the ic is 0.5 mm according to the datasheet.

So based on the picture its definitely going to get short circuited with the neighbour pin, when put into the right place

Here is the pinout from the datasheet.

So maybe some that succeed using this DAT0 adapter they place it wrongly by shift it a little bit left (right if working on the pcb),
Because pin no2 is NC (Not Connected). While people whose place it correctly or shift a little bit to right, will got pin no4 short circuited.

This is my analysation, and i am gonna try to shift the adapter to the left pin (right shift if working on the pcb).

 

[ThiagoDaruma]

Hi, is this dat0 position fine? The diode value is .62v

View attachment 372589View attachment 372588View attachment 372587

It's exactly the same model that I have here. did you have success with it? I haven't tested it yet.

Post automatically merged: May 20, 2023

well, I had some damaged chips here and decided to test it closely


the serigraphy seems to be completely wrong, it needs to position the flat to the left. where the 3.3v serigraphy is almost below the emmc


even so I would make 2 cuts on the sides of the connector, to make it thinner. I did a test with the scalpel and it looks like I got a good result. now just decorate exactly the best position.

 

[Makc16384]

So maybe some that succeed using this DAT0 adapter they place it wrongly by shift it a little bit left (right if working on the pcb),
Because pin no2 is NC (Not Connected). While people whose place it correctly or shift a little bit to right, will got pin no4 short circuited.

This is my analysation, and i am gonna try to shift the adapter to the left pin (right shift if working on the pcb).

That is, if I take a pointed wire and carefully stick it between 2 and 3 points (shorting them), should this work?)

 

[raksmey1231]

hello guys, I installed pico on my switch oled and worked normally but now when i restart it, it did not show anything and when i took out sd card then it showed NO SD. I had boot it to Ofw and it tuned into blue screen. Anyone know the problem and solution? pls help. thank you

 

[snaker]

Good afternoon I ran into an interesting problem.
Switch OLED (FW 2.67). DAT0 adapter, the contact is well soldered. Diode test value 0.800v. Same value when pin is already soldered to rp2040 Zero (wire 0.1mm).
Approximately once a week at the next reboot of the switch, I get the yellow color of the LED and it loads only in OFW.
I check the contact to the ground in the DAT0 diode mode and I already get about 1.500v. Strange.
I just unplug the DAT0 wire from rp2040 and immediately solder it back. Immediately a diode test shows the correct 0.800v. Everything works fine again until the next similar event.

I tried to change the wire from the adapter to rp2040 to a thinner one, I also changed the resistor (the correct one is 47Ohm), but the problem repeats regularly.

Some kind of mysticism, any ideas why this happens and how I could avoid this in the future? Can I replace the rp2040 board?

I had exactly the same issue with an oled model. It was not the dat0 adapter. Until now all the oleds i have done with proper quality dat0 adapters have not failed yet. It was some flux residue that i had forgot to clean from the motherboard. Clean all of your points very well before assembling the console. Also use only no clean flux!

 

[cowboy619]

hello guys, I installed pico on my switch oled and worked normally but now when i restart it, it did not show anything and when i took out sd card then it showed NO SD. I had boot it to Ofw and it tuned into blue screen. Anyone know the problem and solution? pls help. thank you

Boot into full stock and reset the switch


Sent from my iPhone using Tapatalk

 

[raksmey1231]

Boot into full stock and reset the switch

i had try it but it showed blue screen and cannot do anything

 

[cowboy619]

i had try it but it showed blue screen and cannot do anything

Boot on first boot up. Hold vol+ then power on or run ofw from hekate


Sent from my iPhone using Tapatalk

 

[FreeLander]

Hello. I'm going to cover everything with solder mask, I just want you guys to evaluate the quality of my work. Would you be comfortable turning on the switch with this? I'm pretty happy with it but would love to hear from you.

Any test to assess I can do to the MOSFET work is appreciated.

 

[bilalhassan341]

I was trying to remove the type C port and pads are also gone with it. Will it work?

 

[Dee87]

Hello. I'm going to cover everything with solder mask, I just want you guys to evaluate the quality of my work. Would you be comfortable turning on the switch with this? I'm pretty happy with it but would love to hear from you.

Any test to assess I can do to the MOSFET work is appreciated. View attachment 372656

View attachment 372654

Shorten the wire from the first cap please :-) otherwise looks good

Post automatically merged: May 20, 2023

I was trying to remove the type C port and pads are also gone with it. Will it work?

No need for the pads anymore

Post automatically merged: May 20, 2023

I was trying to remove the type C port and pads are also gone with it. Will it work?

No need for the pads anymore

 

[QuiTim]

Hello. I'm going to cover everything with solder mask, I just want you guys to evaluate the quality of my work. Would you be comfortable turning on the switch with this? I'm pretty happy with it but would love to hear from you.

Any test to assess I can do to the MOSFET work is appreciated. View attachment 372656

View attachment 372654

Looks good but check the red square for short between S and G
To be safe, I would sugest to wire the G as in blue line

Post automatically merged: May 20, 2023

I was trying to remove the type C port and pads are also gone with it. Will it work?

Yes, I removed all of them on my first install

 

[detilmalala]

Hello, I bought a replacement motherboard and it came with this defect, does anyone have an idea what it could be?

 

[Takezo-San]

His current issue is that he cannot get his computer to recognize the RP2040 over USB at all.

More confusion for you "picotool" is a computer utility to dump firmware from rp2040's.

Picofly_toolbox is a tool that is run from Hekate on the Nintendo Switch after you have completed a successful hack.

Using cheap USB cables will not do anything with pico to pc transfer/recognition. I had to use the nintendo official usb that comes with the dock to get it to recognise my pc. might help!?

 

[lightninjay]

Using cheap USB cables will not do anything with pico to pc transfer/recognition. I had to use the nintendo official usb that comes with the dock to get it to recognise my pc. might help!?

Even the cheapest USB cables will hook up voltage and ground, so at the minimum I was expecting some kind of lights from his board if the USB port was hooked up properly.

 

[raksmey1231]

Boot on first boot up. Hold vol+ then power on or run ofw from hekate


Sent from my iPhone using Tapatalk

i cannot boot into hekate when sd card not remove, i just got black screen. when sd card were remove, it showed NO SD card and then i pressed vol+ and vol- i got blue screen