Hacking Hardware Picofly - a HWFLY switch modchip

[eseldiem]

Thanks for the response!
Is the damage of not using resistors permanent?

Apart from low probability of data corruption on write? No.

But if you do get the data corruption and you don’t have a nand backup, you’ll be in world of pain.

 

[linuxares]

Apart from low probability of data corruption on write? No.

But if you do get the data corruption and you don’t have a nand backup, you’ll be in world of pain.

Well... there is ways to restore with a donor nand... BUT... Just use resistors.

 

[Dee87]

View attachment 360782

okay that fixed it for me Thank u very much

 

[testkhmark]

Well... there is ways to restore with a donor nand... BUT... Just use resistors.

Right, thank you.
Didn't want to have 97 resistors lying around since 100 is the lowest quantity I can find
Also, does 4.2 ohm works? Just in case

 

[eseldiem]

Right, thank you.
Didn't want to have 97 resistors lying around since 100 is the lowest quantity I can find
Also, does 4.2 ohm works? Just in case

Sure, if you string ~12 of them in series.

 

[Warbeast]

no, and will never find one, big N burry the tracks for good, there is a post where someone uses a dremel and cut a hole on the pcb to find a track for the Dat0 but don't think is a good method.

Sounds like the old xbox 360 kamikaze hack

 

[Donnie-Burger]

Sounds like the old xbox 360 kamikaze hack

I'm down - Got my drill and oled ready!

 

[linuxares]

Right, thank you.
Didn't want to have 97 resistors lying around since 100 is the lowest quantity I can find
Also, does 4.2 ohm works? Just in case

Better than nothing, but I read that 47 to 50 is recommended. Sure you can't just order some? Better to wait a couple of days than to destroy your switch.

"47-50 ohm resistors - SMD 08085 or smaller"

 

[linuxares]

https://gbatemp.net/threads/picofly-a-hwfly-switch-modchip.622701/post-10104315 - the drilling method!

 

[testkhmark]

Better than nothing, but I read that 47 to 50 is recommended. Sure you can't just order some? Better to wait a couple of days than to destroy your switch.

"47-50 ohm resistors - SMD 08085 or smaller"

Yeah, I'm not in a rush for sure, just gathering info)

>better wait than to destroy your switch
>next post: SO THIS IS HOW TO DRILL YOUR BABY

 

[Donnie-Burger]

https://gbatemp.net/threads/picofly-a-hwfly-switch-modchip.622701/post-10104315 - the drilling method!

Oh shit! It's real?

 

[Dee87]

View attachment 360782

so whats the reason That some need 2 and some only need one ?

as soon as u said in some rare cases in knew i would have one of the rare cases Xd

 

[impeeza]

Sounds like the old xbox 360 kamikaze hack

yeap, I think on the same, but the kamikaze was a drill to broke a connection, this is lot risky you need to remove pcb to find a underneath track that is hard as hell.:

https://gbatemp.net/threads/picofly-a-hwfly-switch-modchip.622701/post-10104315

 

[Donnie-Burger]

yeap, I think on the same, but the kamikaze was a drill to broke a connection, this is lot risky you need to remove pcb to find a underneath track that is hard as hell.:

https://gbatemp.net/threads/picofly-a-hwfly-switch-modchip.622701/post-10104315

Back in the day I did many kamikazes and sometimes when all went well you would brick the pcb.

 

[linuxares]

Back in the day I did many kamikazes and sometimes when all went well you would brick the pcb.

Sounds like before the molds and the flashers that kept updating and updating until it got a signal.

 

[malgamer]

If you want to boot original firmware, you need the resistors. They are for signal integrity (at higher speeds the impedance mismatch will F up the emmc signals without resistors).

If you don’t install them, you will only ever be able to use the unit with emu mmc (all running from a flash card).

TLDR: don’t skip them, it’s stupid to do so.

do u mean d a c points need 47ohms resistor?

 

[impeeza]

do u mean d a c points need 47ohms resistor?

exactly

 

[BFlat]

Start with Micropython for your pi zero's, if you've not coded before, it's much easier than c or c++ for noobs to learn. Also changes are instant and you don't need to compile the code. There's loads of ebooks and tutorials on the net. Start with something basic like printing a line or text of turning an led on or off, then go through things like while/for loops, basic maths and stuff like that - soon you will understand that programming is much easier than you think. Once you learn python and understand the basics then try learning c# on windows (this is also easy), then after that c++.

Also, as a software engineer of nearly 20 years, my advice for you is to learn SOLID principals. Look it up as an acronym.
Object Oriented principals will make you much more marketable.

 

[icantfly]

yeap, I think on the same, but the kamikaze was a drill to broke a connection, this is lot risky you need to remove pcb to find a underneath track that is hard as hell.:

https://gbatemp.net/threads/picofly-a-hwfly-switch-modchip.622701/post-10104315

once you expose the via you solder a wire to it?

 

[ApoQ]

Installed on V2 and working.
Thanks to all the community!!