Hacking Hardware Picofly - a HWFLY switch modchip

danielglzt88

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Latest firmware here

ChangeLog:

v2.0 + Active MMC communication
v2.1 + Toshiba support
v2.2 + Fix Toshiba boot fail
v2.3 + SanDisk support
v2.4 + Faster Toshiba boot
v2.5 + fix OFW boot

must be RED after USB write. if you see green, set "RGB mode" jumper

WHITE = eMMC write
BLUE = glitch
PURPLE = eMMC boot failure, check CMD / CLK
YELLOW = eMMC write failure, check D0 / unsupported eMMC
CYAN = no reaction to glitch, check mosfet wire
GREEN = success



Q: What supported?
A: Erista (v1), Mariko (v2, Lite, OLED)

Q: eMMC support?
A: Tested on Hynix, Samsung, Toshiba, SanDisk

Q: GREEN, but instant reset
A: Very sensitive NS. add 20K-30K to RST

Q: Need resistors?
A: SysNAND will not work. Line interference. Only emuMMC.

Q: Chip reset? Learning?
A: Short pin 0 to either 1 or GND. Reset internal statistics.

Q: open source?
A: no

Q: why you made it?
A: to prove it possible!

Q: run Atmosphere?
A: no piracy

By using the Atmosphere unlock tool you agree to use it for homebrew only.

Way 1 (USB): flash the unlock.uf2 into chip by USB
Way 2 (no USB): run picofly_tb from Hekate, need unlock.bin on the SD card
It's a great job, congratulations. just one question, will you have a variant for the Rasperry Pi Pico in the future? Thanks anyway, my repeated congratulations.
 

Dee87

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IMG_20230320_130608.jpg


instead of soldering everything to the emmc chip itself i decided to solder it to the emmc connector on the board
 

rehius

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View attachment 360114View attachment 360115


just playing around with some donor boards what solution should i use ?
Post automatically merged:


yeah thats true bulk is the way to go....
still gonna try and create a pcb and then ill check on it again and see how much bulk is and maybe just buy bulk and offer them for picofly we will see

never used pcbway only jlcpcb and never had issues with them
the second one looks cleaner. don't forget to apply green mask on the square pad right under the wire, it's GND
Post automatically merged:

So, it's pikofly or picofly?
picofly, no idea where the OP got 'k'
Post automatically merged:

View attachment 360216

instead of soldering everything to the emmc chip itself i decided to solder it to the emmc connector on the board
yes, I used the same way. can replace memory much faster
Post automatically merged:

It's a great job, congratulations. just one question, will you have a variant for the Rasperry Pi Pico in the future? Thanks anyway, my repeated congratulations.
no such plans, it's too large to fit
 

binkinator

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The 'Atmosphere Unlock' part has been added to the main post
to prevent possible partial / badly unlocked firmwares causing damage to a console.

My congratulations with the security bypass, flynnsmt4!
O
M
G
!!!!

I don’t know if I’m ludicrous or ecstatic!
I’m ludicrous! No, I’m ecstatic! No, wait, I’m ludicrous!
Wow man! Just wow!
@rehius @flynnsmt4 @Everybody

1679315815587.jpeg

Post automatically merged:

@rehius

Well done friend! Very well done! I guess this means my attempt is no longer worthwhile.

Don’t fret though! I plan to continue simply for the knowledge. Will you still be able to give help?
I’m not telling my wife about this so she will still get me the Logic Analyzer! I’m still in for the knowledge!


It’s official! I’ve changed my vote!

6BC92D23-C857-4DDF-8E13-B9EB789C1EEB.jpeg
 
Last edited by binkinator,

Assidefok

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The 'Atmosphere Unlock' part has been added to the
to prevent possible partial / badly unlocked firmwares causing damage to a console.

My congratulations with the security bypass, flynnsmt4
The 'Atmosphere Unlock' part has been added to the
to prevent possible partial / badly unlocked firmwares causing damage to a console.

My congratulations with the security bypass, flynnsmt4!
You rock!! 🎉
 
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Dee87

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O
M
G
!!!!

I don’t know if I’m ludicrous or ecstatic!
I’m ludicrous! No, I’m ecstatic! No, wait, I’m ludicrous!
Wow man! Just wow!
@rehius @flynnsmt4 @Everybody

View attachment 360219
Post automatically merged:


I’m not telling my wife about this so she will still get me the Logic Analyzer! I’m still in for the knowledge!
Wow he replied I really thought he would get arrested for running naked through the streets while screaming: he released it he did it :rofl2::rofl2::rofl2:
 
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binkinator

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Wow he replied I really thought he would get arrested for running naked through the streets while screaming: he released it he did it :rofl2::rofl2::rofl2:
The day is young my friend! I’m naked. running around living room. Hard to type! Much excite!
 

Assidefok

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So, of we use flex for CPU, are resistors still need? For example, if we would like to install this in OLED model, with flex should be easier right? And what about Emmc point, are there alternatives?
 

binkinator

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So, of we use flex for CPU, are resistors still need? For example, if we would like to install this in OLED model, with flex should be easier right? And what about Emmc point, are there alternatives?
Yes. Resistors are still needed even w/ flex. Those don’t go to the flex. They go to the board. See @sthetix diagrams on GitHub for all possible points for your board.
 
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marhalloweenvt

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Is there any design of hwfly flex cable on the Internet? I would like to re-implement with easier-to-get method in my country than waiting for nearly 2 month from aliexpress.
 

zecoxao

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Latest firmware here

ChangeLog:

v2.0 + Active MMC communication
v2.1 + Toshiba support
v2.2 + Fix Toshiba boot fail
v2.3 + SanDisk support
v2.4 + Faster Toshiba boot
v2.5 + fix OFW boot

must be RED after USB write. if you see green, set "RGB mode" jumper

WHITE = eMMC write
BLUE = glitch
PURPLE = eMMC boot failure, check CMD / CLK
YELLOW = eMMC write failure, check D0 / unsupported eMMC
CYAN = no reaction to glitch, check mosfet wire
GREEN = success



Q: What supported?
A: Erista (v1), Mariko (v2, Lite, OLED)

Q: eMMC support?
A: Tested on Hynix, Samsung, Toshiba, SanDisk

Q: GREEN, but instant reset
A: Very sensitive NS. add 20K-30K to RST

Q: Need resistors?
A: SysNAND will not work. Line interference. Only emuMMC.

Q: Chip reset? Learning?
A: Short pin 0 to either 1 or GND. Reset internal statistics.

Q: open source?
A: no

Q: why you made it?
A: to prove it possible!

Q: run Atmosphere?
A: no piracy

By using the Atmosphere unlock tool you agree to use it for homebrew only.

Way 1 (USB): flash the unlock.uf2 into chip by USB
Way 2 (no USB): run picofly_tb from Hekate, need unlock.bin on the SD card
so it's not fake? sadge
 

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