Hacking Hardware Picofly - a HWFLY switch modchip

[JackFrostSMT]

Installed into a lite today to the best of my current ability. So far it just blinks red once like after programming but nothing after and nothing on screen.

 

[Darkspade]

I couldn’t RESIST lol did you bridge the pins on the flex? Or left as is


Sent from my iPhone using Tapatalk

I put it to single, but also tested with 3 & 4 both booted switch

 

[cowboy619]

Installed into a lite today to the best of my current ability. So far it just blinks red once like after programming but nothing after and nothing on screen.

Post pics of install


Sent from my iPhone using Tapatalk

 

[JackFrostSMT]

Very bad install but I'll clean up if i can get it working

 

[Dee87]

nothing here Xd

 

[szczetyk]

I'd like to know this too

One np2016 works for oled so

 

[billybobxxx]

I couldn’t RESIST lol did you bridge the pins on the flex? Or left as is


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My flex cable have pin 3 and 4 shorted and works well

 

[RexSonic]

To use this on a Mariko all I need is a rp2040zero, a hwfly v2 cable and a couple of 47ohm smd resistors correct?

 

[JackFrostSMT]

im not sure but it seams to me the cables from the mosfet need to be turned around D to left side of cap and G to right side of cap and the cpu cabel (s) is under ground and u connectet ur cpu cabel to D
https://gbatemp.net/attachments/mariko-jpg.360376/

Doesn't pico control the gate? I vaguely remember binkinator saying that

 

[billybobxxx]

To use this on a Mariko all I need is a rp2040zero, a hwfly v2 cable and a couple of 47ohm smd resistors correct?

Exact

 

[Dee87]

Doesn't pico control the gate? I vaguely remember binkinator saying that

D left side of cap G right side cap s to rp2040

Post automatically merged: Mar 25, 2023

My install but i had to install 2 mosfets

 

[JackFrostSMT]

I removed mosfet entirely to see if it would at least blink cyan or do something, nope same behavior

 

[linuxares]

Okay it's a Sk hynix.... Will i have issues with PicoFly or Hwfly?

Most likely not

 

[Tom8823]

D left side of cap G right side cap s to rp2040

This is wrong,

Gate goes to Pico

It's been clarified many times before that this picture was wrong.

Cap is source and Drain

 

[Dee87]

This is wrong,

Gate goes to Pico

It's been clarified many times before that this picture was wrong.

Cap is source and Drain

true srry my mistake .

 

[Phantomas77]

D left side of cap G right side cap s to rp2040
View attachment 361353

Post automatically merged: Mar 25, 2023

@linuxares is it possible to edit the original post of this image saying it is wrong? I remember seeing it maybe a dozen pages ago but can't find it. Maybe it could help for the people to not repeat the same mistake again and again...

 

[JackFrostSMT]

D left side of cap G right side cap s to rp2040

Post automatically merged: Mar 25, 2023

My install but i had to install 2 mosfets

View attachment 361354

Is the removed cap just bridged?
Also I removed CMD point and it boots ofw, but with cmd connected it does nothing

 

[Dee87]

Is the removed cap just bridged?
Also I removed CMD point and it boots ofw, but with cmd connected it does nothing

No I put uv mask on the solder point under the mosfet

 

[Maou_SET]

I have tried using the PGA2040 from Pimoroni for this but no success. It simply blinks red once and that is all nothing afterwards. I have connected all of the GPIO pins as required and even installed an addressable LED on GPIO16, because the Waveshare 2040has the LED connected there. Are there any other relevant hardware differences? I couldn't find much that has relevance. Has anyone successfully tried other Picos?

 

[RiotRetroGaming]

no there is no way to bypass the mosfett

blue then toruise(cyan) that mean u have a issue with the mosfet or cable to mosfett

u can use a short thick wire or repair pads for broken traces

lets see a pic of ur soldering and ur tip ,are u using flux ?

Ok, thought you might say that

Using 'Chipquik' flux and an 'Atten ST-80' ultrafine soldering tip.
I just ordered a hot-air rework station, HD microscope & screen :/ a bit far fetched, but need a XAJ & XKJ done by Tuesday!

I have uploaded a video, but as a new user here it won't let me post it.
If you type in Youtube: "Picofly Erista - MOSFET Bad CPU Pin" it will come up with my first switch-on video.

Type in: "Ultrafine Atten ST-80 Soldering Tip" and you'll find the tip I'm using.

I am meeting 'A Friend' tomorrow who has a load of V1/V2 flexes left over, so fingers crossed it's defo my soldering!
I did do some original SX installs with these in the past and had no issues.

I would just like to say - "You guys are f!!king legends" <3
Amazing & keep up the good work, do you have a donation link?


Thank you for your time,
Ant