Hacking Hardware Picofly - a HWFLY switch modchip

[LogicalMadness]

Guys I had a mariko v2 and tested hac-cpu-21,
Tested the 2 mosfets from a donor board View attachment 363974 and it works like a charm.
Instant glich.
this are I think toshiba ssm6k504nu.

I've tested the mosfets from hwfly v2 flex are not working.
I've tested the mosfets from hwfly v2 felx on 3 switches.Non worked with the flex.
This confirmed that I've lost 2 days trying to glich with borken mosfets with the flex.

What color were you getting on the PFly when you had the HWFly flexes in? I may have a similar issue.

Also, just to be sure, you took MOSFETs from a donor Switch and used them to glitch w/ a PFly?

 

[CapitolLimited]

Update the firmware. Already fixed.

Thanks boss. Everything is working great now!

 

[juanop]

Otros podrían confirmar, pero creo que esto se debe a que la resistencia en el punto A estaba dañada. El valor es de 4,7 k ohmios. Intenta reemplazarlo.

It has happened to me in 2 or 3 oleds, when the cmd resistor is damaged, broken or open. blue screen directly.

Post automatically merged: Apr 26, 2023

I'm honestly have no idea also. I asked the same question and I've got following response:

When I checked it with multimeter there is no resistance (except multimeter probes ofc) between these points so I believe that's no reason to do so (if there is however I would like to know ).

Here's my photo of my mosfet installment which is using only one side of capacitor:

View attachment 367082

Everything ofc works.

I think just connecting any of black dots to mosfet's source and any of red dots to mosfet's drain is sufficient:

View attachment 367087

I installed a single MOSFET, but this installation that you have done here, it would save work and time, it would have to be tested over a long period of time to verify that there is no problem, I will try to do that installation and I will publish the results

 

[malgamer]

may i ask for power rating and tolerance? can i use 0402 SMD RESISTOR 4.7K?

0201 resistor 4.7k is the correct size

 

[Dandan0404]

0201 resistor 4.7k is the correct size

Long story short, ordering 0201 smd resistor would take 3 weeks to a month and in our local shops here only has 0402. Can I use 0402 smd resistor and will it affect performance or something?

 

[malgamer]

Long story short, ordering 0201 smd resistor would take 3 weeks to a month and in our local shops here only has 0402. Can I use 0402 smd resistor and will it affect performance or something?

only the smd size is different

 

[Chino86]

It has happened to me in 2 or 3 oleds, when the cmd resistor is damaged, broken or open. blue screen directly.

Post automatically merged: Apr 26, 2023

I installed a single MOSFET, but this installation that you have done here, it would save work and time, it would have to be tested over a long period of time to verify that there is no problem, I will try to do that installation and I will publish the results

this issue is happening to me, the resistor CMD is damage, so the picofly when i connect the battery inmediatily i get blue led and then led purple. That resistor i changed for one 8 ohm and not work, same problem, that resistor should be 4.7 ohm?

 

[jkyoho]

this issue is happening to me, the resistor CMD is damage, so the picofly when i connect the battery inmediatily i get blue led and then led purple. That resistor i changed for one 8 ohm and not work, same problem, that resistor should be 4.7 ohm?

4.7k ohm= 4700 ohm

 

[Dandan0404]

only the smd size is different

4.7k ohm= 4700 ohm

Going to my expert installer now, so replacing the CMD resistor 4.7k ohm resistor smd 0402(I have no 0201, takes 3 weeks) will help solve purple screen? And the failed to init emmc

 

[Danook28]

4.7k ohm= 4700 ohm

47R smd resistor ohm... 20 smd resistor ohm can use only not k smd resistor that too much value

 

[jkyoho]

Going to my expert installer now, so replacing the CMD resistor 4.7k ohm resistor smd 0402(I have no 0201, takes 3 weeks) will help solve purple screen? And the failed to init emmc

Rotate the 0402 resistor a bit, solder on the bottom side first, and top part you can scratch up the red via to make better connection in order to fit in the oversize 0402 resistor than the original pad

47R smd resistor ohm... 20 smd resistor ohm can use only not k smd resistor that too much value

I meant 4.7k ohm for the CMD resistor, to be clear. We should already know 47R=SMD CODE 470, for the CMD,CLK,DAT0 on RP2040 wiring.

 

[trungnguyen]

This was literally JUST discussed IN THIS PAGE. Your CMD resistor is faulty. Check it's resistance is still 4.7k and that it's soldered on both pads.

That belly in the picture is priceless...

I have measured 4k7 CMD resistance still normal. i think emmc has data error. do you have a fix?

 

[MegaDeKay]

Rotate the 0402 resistor a bit, solder on the bottom side first, and top part you can scratch up the red via to make better connection in order to fit in the oversize 0402 resistor than the original pad
View attachment 367362

I meant 4.7k ohm for the CMD resistor, to be clear. We should already know 47R=SMD CODE 470, for the CMD,CLK,DAT0 on RP2040 wiring.

Take a lot of care if trying this out because of the potential of a short circuit from the larger pad on the new component to the adjacent trace. The solder mask helps to prevent this but I would not bet my life on it. Soldering the larger part flipped on its side might help a little bit as well. A little bit.

 

[Brunh]

I get mys smd resistor but have code code 4700 is = 470 ? Anybody know?

 

[Dandan0404]

Rotate the 0402 resistor a bit, solder on the bottom side first, and top part you can scratch up the red via to make better connection in order to fit in the oversize 0402 resistor than the original pad
View attachment 367362

I meant 4.7k ohm for the CMD resistor, to be clear. We should already know 47R=SMD CODE 470, for the CMD,CLK,DAT0 on RP2040 wiring.

Thank you thank you, everything works

My issue now us backing the eMMC sometimes starts at Initial point again for example 1% the 7% then back to 3 then 9 then 5 then 9 then 6 then 11 and now it just turned from 11% to 8 again. Is that normal?

 

[jkyoho]

Thank you thank you, everything works

My issue now us backing the eMMC sometimes starts at Initial point again for example 1% the 7% then back to 3 then 9 then 5 then 9 then 6 then 11 and now it just turned from 11% to 8 again. Is that normal?

Not quite understand what you mean.Did you try different SD card? format in FAT32？

 

[leerz]

I removed all of them and booted into ofw and got a purple screen

dead cmd resistor

 

[malgamer]

I get mys smd resistor but have code code 4700 is = 470 ? Anybody know?

yes 470ohm

 

[Hikari3]

I installed the Picofly, everything worked fine expected Atmosphere shows that the high current was used and the battery drained very fast (~277mA while doing nothing and jump up to ~370mA while creating EmuEMMC). Is this current using is normal? I still not remove the 3.3V regulator of the RP2040. Thank you, guy!

 

[Jonas225]

Hi,
I just updated to 2.67 but still not possible to boot OFW. Hekate is not yet configured but that shouldn't have an impact for OFW, right?