Hacking Hardware Picofly - a HWFLY switch modchip

[Deleted member 542674]

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[Makc16384]

in my opinion, that is mosfet issue (incorrect? or try two mosftets) - i had similar issue back in thread

Did you end up using 2 or replacing 1?

 

[nqtal]

show your cpu cap soldering, you might have killed the cap and shorted it. remove the overheating cap and focus on the other cap.

What other cap? Can't show, i removed mosfet.

 

[Modi]

See pico fly aio...
Led erorLED 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

Already make over 50 Picofly 20 oled do have any problems before. Always make RGB mode is must be PURPLE not Pink

 

[QuiTim]

Already make over 50 Picofly 20 oled do have any problems before. Always make RGB mode is must be PURPLE not Pink

Nice quality photo.
Did you check for a short on CLK. That top part of the shield just seems to close to the point (assuming you routed the wire beneath the shield).
The color suggests something in that direction as well.

 

[Phantomas77]

Already make over 50 Picofly 20 oled do have any problems before. Always make RGB mode is must be PURPLE not Pink

Don't source the 3.3V from those caps, it's not stable, rehius already warned about it.

Use the point from AIO guide and updated sthetix diagrams (see below).

 

[nqtal]

Can I use this cable for lite instead of mosfet?

 

[789-Benny]

What temperature is the best for Lite with 2 mosfets?

Seen conflicting information in the thread some suggesting 380 on mosfets, others saying 400, some saying 300 on the 2040 etc

 

[Danook28]

Can I use this cable for lite instead of mosfet?
View attachment 369472

Yes i well add v2 Flex Cable on v1.. Bro

 

[ypeeLs]

What temperature is the best for Lite with 2 mosfets?

Seen conflicting information in the thread some suggesting 380 on mosfets, others saying 400, some saying 300 on the 2040 etc

Temp is based on the solder you use and what you're soldering to, it something you learn early on. Please dont attemp if you're new to soldering unless you want a broken switch

 

[789-Benny]

Temp is based on the solder you use and what you're soldering to, it something you learn early on. Please dont attemp if you're new to soldering unless you want a broken switch

Doesn't answer the question :/

 

[QuiTim]

What temperature is the best for Lite with 2 mosfets?

Seen conflicting information in the thread some suggesting 380 on mosfets, others saying 400, some saying 300 on the 2040 etc

The lower the temperature the better are chances of not causing any damage so you need to see what works for your soldering iron.
The highest temp. I used on anything is 350° (assuming that the temp. readings on my iron are correct).
Anyway, one thing to keep in mind is that it's better to use higher temp. for short period than lower temp for longer period.

 

[Othmenchargui]

Hi
Raspberry pi pico
Two sd same problem
Please help me

 

[789-Benny]

The lower the temperature the better are chances of not causing any damage so you need to see what works for your soldering iron.
The highest temp. I used on anything is 350° (assuming that the temp. readings on my iron are correct).
Anyway, one thing to keep in mind is that it's better to use higher temp. for short period than lower temp for longer period.

I have a Hakko. So temp can be changed, that was my understanding best to use higher temp for shorter periods, most other comments are leaning towards no higher than 350

 

[ypeeLs]

Doesn't answer the question :/

because We dont know what solder you're using, lead free solder uses a higher temp

 

[lightninjay]

I have a Hakko. So temp can be changed, that was my understanding best to use higher temp for shorter periods, most other comments are leaning towards no higher than 350

I personally have soldered all the way up to 400 degrees C on a switch lite, the mosfets, a rp2040 doing resistors, in fact, I rarely go below 390C. BUT, I am also experienced at soldering at these temps with these small components. I know how long to hold my iron on the point I'm trying to solder and how not to burn components at these temps.
This is not the place to learn how to solder or get soldering tips. This is a place to learn how to install a picofly, which technically speaking has nothing to do with the soldering involved to install it.

 

[789-Benny]

because We dont know what solder you're using, lead free solder uses a higher temp

 

[QuiTim]

I have a Hakko. So temp can be changed, that was my understanding best to use higher temp for shorter periods, most other comments are leaning towards no higher than 350

I would suggest you get some lead solder 63/37 or similar. It makes everything easier. the one that you are using has a melting temp of 227° compared to Sn63/Pb37 of 183° or Sn62/Pb36/Ag2 of 179°
if you are in US you should have no problem getting Lead based solder (Kester is awesome).
Trying to get this stuff in EU is a nightmare.

Post automatically merged: May 6, 2023

Hi
Raspberry pi pico
Two sd same problem
Please help me

i dont know what issues you are facing but those cards are not good for anything.
Get a SanDisk, Samsung Evo or Kingstone Canvas.
Basically any established brand name (beware of fakes)

 

[abal1000x]

I have a Hakko. So temp can be changed, that was my understanding best to use higher temp for shorter periods, most other comments are leaning towards no higher than 350

If you want to play by the rule, then you also need to buy professional temperature meter, and calibrate your hakko based on that, for the tip you will be used.

Post automatically merged: May 6, 2023

Hi
Raspberry pi pico
Two sd same problem
Please help me

Have you tried atmosphere setup from here:
https://rentry.org/CFWGuides

 

[lightninjay]

Here is a composite image I just took of a double mosfet install I am doing on a switch lite. The circles are the general points of interest and where they need to be hooked up. I jumpered between the gate pins on the mosfets and ran a single wire to the rp2040 to keep wire clutter down, as has been suggested previously.