Hacking Hardware Picofly - a HWFLY switch modchip

[Donnie-Burger]

Maybe for Toshiba the value suited is not 47ohm but 100ohm, need more confirmation for people who actually install on Toshiba nand.

Its one for all solution, so there could be some nand not suited with the resistance value.

Post automatically merged: May 12, 2023

I used what people used (under the flex cable), its worked.
This also confirmed:
View attachment 370834

Toshiba works with 47ohm

 

[abal1000x]

(I am not an expert of EMMC)

Read from the datasheet of toshiba and samsung seems like CMD/CLK/DAT-N need to be 50 Ohms impedance (the default).

Maybe for toshiba, try to use 50 ohms (maybe they strict with the value)
or use the others like 33ohms 66ohms 100ohms or 40ohms.

 

[LuigiGad]

Maybe for Toshiba the value suited is not 47ohm but 100ohm, need more confirmation for people who actually install on Toshiba nand.

Its one for all solution, so there could be some nand not suited with the resistance value.

Post automatically merged: May 12, 2023

I used what people used (under the flex cable), its worked.
This also confirmed:
View attachment 370834

I used this

Maybe for Toshiba the value suited is not 47ohm but 100ohm, need more confirmation for people who actually install on Toshiba nand.

Its one for all solution, so there could be some nand not suited with the resistance value.

Post automatically merged: May 12, 2023

I used what people used (under the flex cable), its worked.
This also confirmed:
View attachment 370834

i used this

 

[NandieeHU]

Yes ir cyna problem with mosfer.Make now over 30 + oled check install

Post automatically merged: May 11, 2023

Solved. The problem caused by the DAT0 adapter. I encoutered this issue a few times when the adapter bridges more ball or balls even if the adapter is not soldered by hot air. Simply the little half ring at the adapter touch more balls then needed.

 

[abal1000x]

Solved. The problem caused by the DAT0 adapter. I encoutered this issue a few times when the adapter bridges more ball or balls even if the adapter is not soldered by hot air. Simply the little half ring at the adapter touch more balls then needed.

What kind of adapter you used, the 4 point one?

 

[NandieeHU]

What kind of adapter you used, the 4 point one?

 

[abal1000x]

View attachment 370856

Yupz thats one, someone says the same thing.

Reference:
https://gbatemp.net/threads/picofly-a-hwfly-switch-modchip.622701/post-10153149

Hopefully @lightninjay also put footnote on warning about this Dat0 adapter on the picofly-guide.pdf

 

[darkangel5000]

(I am not an expert of EMMC)

Read from the datasheet of toshiba and samsung seems like CMD/CLK/DAT-N need to be 50 Ohms impedance (the default).View attachment 370835

Maybe for toshiba, try to use 50 ohms (maybe they strict with the value)
or use the others like 33ohms 66ohms 100ohms or 40ohms.

This basically coincides with my findings about the SKHynix H26M74002HMR in its datasheet.
47Ohms was *a bit* fluky when it came to glitching, 2x100Ohms in parallel (~=50Ohms) per emmc line works a bit better.
I'm currently evaluating if using 51R (given 10% manufacturing tolerance, so hopefully they'll measure at =<50,5R when they arrive) will have the same effect, as using stacked 1206 resistors isn't quite the solution I've had hoped to use in the long run.

 

[NandieeHU]

Yupz thats one, someone says the same thing.

Reference:
https://gbatemp.net/threads/picofly-a-hwfly-switch-modchip.622701/post-10153149

Hopefully @lightninjay also put footnote on warning about this Dat0 adapter on the picofly-guide.pdf

I seen somewhere someone made dat0 adapters with jlcpcb and sell it for pretty good price. May be You guys know the link?

 

[abal1000x]

I seen somewhere someone made dat0 adapters with jlcpcb and sell it for pretty good price. May be You guys know the link?

The 4 pin adapter what is recommended now.

 

[nqtal]

Greetings! Another problem. Yesterday my switch was working fine. Today I turn on - a purple screen. After the reboot, it was possible to start the drain, but after a couple of seconds an error occurred. Through time it is possible to get into the recovery menu, even did a reset to the factory settings. But still purple screen or error.

After another reboot i have this:

But then:

 

[QuiTim]

I seen somewhere someone made dat0 adapters with jlcpcb and sell it for pretty good price. May be You guys know the link?

Get this one if possible:
https://www.aliexpress.com/item/1005005316412395.html

 

[Marsowaty]

First, check that different cards are not really working. Second, open your switch to check if at any time you did any damage in any area when you were installing the picofly. Third, check components near the SD slot. Fourth, If you still have the same problem, you can upload close-up images of everything you were touching so we can see and help better.

I have a pictures lite.
What to check when the micro card does not work?
Before picofly running, i create emunand. But next day, picofly not working and lite only run OFW.

Today, i remove pico but fault microsd still showing error.

 

[abal1000x]

I have a pictures lite.
What to check when the micro card does not work?
Before picofly running, i create emunand. But next day, picofly not working and lite only run OFW.

View attachment 370865View attachment 370866
View attachment 370867
Today, i remove pico but fault microsd still showing error.

Have you tried using other microsd card?

 

[Marsowaty]

Have you tried using other microsd card?

Yes, i have a 5 microSD Card. But on everything switch fault code

 

[abal1000x]

Yes, i have a 5 microSD Card. But on everything switch fault code

Need professional to check.

My hunch theres some component got burned, and need to be replaced.

 

[Marsowaty]

Need professional to check.

My hunch theres some component got burned, and need to be replaced.

Maybe, buy next switch And replay install pico

 

[Danook28]

Maybe, buy next switch And replay install pico

Brother if any wrong conect or soldring point on nintendo switch well kill it. This is happend to me. Soldering point so close to some other so becarefull dud....

 

[DesDeux]

Tried to install picofly, but got blue then pink (purple) light (and on switch got 2101-0001 error code). What could be causing this?

I've fully resolder, make data wires shorter, but still got blue->pink(or purple?). After soldering GRB/RGB points together pico shows blue->green lights (and starts ofw with 2101-0001 error). Also, can someone say do my switch have toshiba emmc or not?

 

[Modi]

This basically coincides with my findings about the SKHynix H26M74002HMR in its datasheet.
47Ohms was *a bit* fluky when it came to glitching, 2x100Ohms in parallel (~=50Ohms) per emmc line works a bit better.
I'm currently evaluating if using 51R (given 10% manufacturing tolerance, so hopefully they'll measure at =<50,5R when they arrive) will have the same effect, as using stacked 1206 resistors isn't quite the solution I've had hoped to use in the long run.

must check it

Post automatically merged: May 12, 2023

I've fully resolder, make data wires shorter, but still got blue->pink(or purple?). After soldering GRB/RGB points together pico shows blue->green lights (and starts ofw with 2101-0001 error). Also, can someone say do my switch have toshiba emmc or not?

use other soldering point work better

Post automatically merged: May 12, 2023

Greetings! Another problem. Yesterday my switch was working fine. Today I turn on - a purple screen. After the reboot, it was possible to start the drain, but after a couple of seconds an error occurred. Through time it is possible to get into the recovery menu, even did a reset to the factory settings. But still purple screen or error.
View attachment 370857
View attachment 370858
After another reboot i have this:
View attachment 370868
But then:
View attachment 370869

looks like wrong soldering job