Hacking Hardware Picofly - a HWFLY switch modchip

[GarnetSunset]

Anyone got any tips? I'm trying to get a test boot out of this rp2040, I can get to the "no sd card" screen/could not init sd screen, I can't get into hekate! The resistors are 47r (yes I plan on either getting lil guys or an all in one board), basically black screen where hekate should be

@Modzvilleusa i removed my chip and im still getting purple screen a death

 

[icantfly]

@Modzvilleusa i removed my chip and im still getting purple screen a death

maybe you damaged something, possibly short or damage to pads/traces

 

[realtimesave]

I assume you have a v1 board, here is RST alternative solder point. It's on top of those 2 resistor, gold test points(both 2 same)

Thanks. System decided to not boot up any more and then now the pico chip doesn't turn on any more. I am going to sell it as-is broken for parts. Been there, and done that. 2 times before. Yeah I lose money but I get at least some of it back. This Erista didn't cost a lot. Will have to just use a normal modchip in the future.

 

[FueledSamantha]

Anyone got any tips? I'm trying to get a test boot out of this rp2040, I can get to the "no sd card" screen/could not init sd screen, I can't get into hekate! The resistors are 47r (yes I plan on either getting lil guys or an all in one board), basically black screen where hekate should be

Did you rename hekate in the root of the sd card to "payload.bin"?

@Modzvilleusa i removed my chip and im still getting purple screen a death

Might have damaged something during removal, your install was working correctly.
Double check each solder point for damaged pads, shorts or moved caps/resistors.

 

[GarnetSunset]

Did you rename hekate in the root of the sd card to "payload.bin"?

Might have damaged something during removal, your install was working correctly.
Double check each solder point for damaged pads, shorts or moved caps/resistors.

Yes, I did

 

[FueledSamantha]

Yes, I did

Fat32 formatted the sd?

 

[GarnetSunset]

Fat32 formatted the sd?

YEp, I think I killed it

 

[FueledSamantha]

YEp, I think I killed it

Purple screen is corrupt bootloader iirc, so you will need a successful modchip install to repair it.

 

[iO-bUGGY]

Guys does 34ohm resistor work?

 

[CarlZH]

Guys does 34ohm resistor work?

Is it 33 ohms?
It is recommended to increase
Or use 33+33=66 ohms (used in series)

 

[Dee87]

YEp, I think I killed it

lets see ur all ur solder points

 

[Kiuxn]

board detection failed. you can try soldering into console (it is safe), if still no LED light, you can set RGB jumper - this forces rp2040-zero board, but colors might be reversed.

I am still working on a safe board detection method. don't want to make many .uf2 for different

board detection failed. you can try soldering into console (it is safe), if still no LED light, you can set RGB jumper - this forces rp2040-zero board, but colors might be reversed.

I am still working on a safe board detection method. don't want to make many .uf2 for different boards

What is the reason for removing zero that cannot be turned on/bright screen?

Post automatically merged: Apr 6, 2023

board detection failed. you can try soldering into console (it is safe), if still no LED light, you can set RGB jumper - this forces rp2040-zero board, but colors might be reversed.

I am still working on a safe board detection method. don't want to make many .uf2 for different boards

There are 47 resistors, and emmc display slow mode represents switch hardware failure?

 

[Contra8bit]

Post automatically merged: Apr 6, 2023

There are 47 resistors, and emmc display slow mode represents switch hardware failure?

Same on 0.25 and rev1 + rp2040 zero + emmc Samsung. OFW boots fine. Wires soldered to emmc adapter.
Tryed 0.26, but there is no led blinking, training and no NO SD screen (btw can RGB bridge solve the problem in this case?)

 

[FueledSamantha]

Post automatically merged: Apr 6, 2023

There are 47 resistors, and emmc display slow mode represents switch hardware failure?

I had this issue and it was a wiring fault on CMD. Wiring issues on CMD and CLK can cause this error.
Probe point to point with multimeter to ensure resistance is correct and visually inspect for bridges, mine wasnt visible until I used a scope.

https://gbatemp.net/threads/picofly-a-hwfly-switch-modchip.622701/page-197#post-10119745

 

[Dee87]

Thanks. System decided to not boot up any more and then now the pico chip doesn't turn on any more. I am going to sell it as-is broken for parts. Been there, and done that. 2 times before. Yeah I lose money but I get at least some of it back. This Erista didn't cost a lot. Will have to just use a normal modchip in the future.

this has nothing to do with the modchip u fucked something during ur install attempt .
check ur wiring and the area around it .


u said it urself a few pages back ur rst pad "came off" so u eather solderd it to hot or ripped it off it doesnt just come of this has nothing to do with The Modchip itself it ur insallation.
so it wont change anything when using a "normal Modchip"

 

[rehius]

ok, looks like auto hos power off is not working in 2.6 alpha, will fix that later

 

[iO-bUGGY]

Guys can someone tell me what pin do I need to solder for the hwfly cpu v2 flex cable?

 

[seleco]

ok, looks like auto hos power off is not working in 2.6 alpha, will fix that later

Can we remove USB port and update without this in 2.6 alpha?

 

[Dee87]

Guys can someone tell me what pin do I need to solder for the hwfly cpu v2 flex cable?

im pretty sure its 3&4

 

[Donnie-Burger]

im pretty sure its 3&4

3 or 4 has worked for me but I bridge both 3+4 now with 100% success. You will have 2 pads left on each side if you bridge 3+4.