Hacking Hardware Picofly - a HWFLY switch modchip

[Adran_Marit]

Sorry I was away from motherbored. Here it is, all red is the lost traces. System wont boot. Blackscreen

Post automatically merged: May 24, 2023

Redl lines are the damaged traces. System wont boot. Blackscreen. What do you think?

post *uneditied* photos please, it makes it hard to see if the point is *actually* damaged

 

[FreeLander]

post *uneditied* photos please, it makes it hard to see if the point is *actually* damaged

Sorry. Will take better pic as soon as I can. Does damaging it makes a black screen?

 

[Adran_Marit]

Sorry. Will take better pic as soon as I can. Does damaging it makes a black screen?

It could also be any of the other points you've soldered to. But there is a chance.

 

[Danook28]

Sorry. Will take better pic as soon as I can. Does damaging it makes a black screen?

If the mmc chip dat0 bridge to point near it under chip... Yes it make black boot.or damge by heat.or small resistor damge by heat. Or clk if bridge to ground by scratch it to much and short to ground. Yes make black boot.rst rosen flux.also efect point to chip.

 

[bilalhassan341]

Sorry I was away from motherbored. Here it is, all red is the lost traces. System wont boot. Blackscreen

Post automatically merged: May 24, 2023

Redl lines are the damaged traces. System wont boot. Blackscreen. What do you think?

Upload a photo of trace without the edit.

Post automatically merged: May 24, 2023

If the mmc chip dat0 bridge to point near it under chip... Yes it make black boot.or damge by heat.or small resistor damge by heat. Or clk if bridge to ground by scratch it to much and short to ground. Yes make black boot.rst rosen flux.also efect point to chip.

That is why I prefer permanent Dat0 point on the board by grinding it.

 

[FreeLander]

If the mmc chip dat0 bridge to point near it under chip... Yes it make black boot.or damge by heat.or small resistor damge by heat. Or clk if bridge to ground by scratch it to much and short to ground. Yes make black boot.rst rosen flux.also efect point to chip.

Interesting. If there was too much grinding and CLK is bridged to ground. How would you fix it?

Post automatically merged: May 24, 2023

Upload a photo of trace without the edit.

Post automatically merged: May 24, 2023

That is why I prefer permanent Dat0 point on the board by grinding it.

By removing the eMMC chip and soldering a wire to the third point? Is this how you do it?

 

[Dee87]

Sorry I was away from motherbored. Here it is, all red is the lost traces. System wont boot. Blackscreen

Post automatically merged: May 24, 2023

Redl lines are the damaged traces. System wont boot. Blackscreen. What do you think?

first of all why would u use a grinder to grind it away?
use a exacto knife or something sharp to schratch the layer away , that line is a connection from emmc to apu u need to restore it if the via is damaged.
and yes it can cause a black screen

u need to try to reconnect that via hole to the line

 

[FreeLander]

Thank you all. Here's a clearer picture.
@Dee87
@bilalhassan341
@Danook28
@Adran_Marit

Any further input is appreciated.
Dee, This is not my work. I'm inquiring for a friend who has this Switch.

 

[Dee87]

Thank you all. Here's a clearer picture.
@Dee87
@bilalhassan341
@Danook28
@Adran_Marit

Wow thats burnt af
give it a good clean if that doesnt get the burn off of the via hole take somethign scarp and scrape it carefully u need to get solder on there and make a prope connection back to the via line WITHOUT touching the ground pad.

Post automatically merged: May 24, 2023

good morning guys I need your help, which option should I choose, which will be the best chip to put my switch, I will pay a technician to do this he sells the hwfly and picofly chps, he charges very expensive, 170€ he charges the same price for installation of the 2 chips, HWFLY and PICOFLY I want to know which of these chips should I choose, is the installation cost the same?

BRO REALLY?
u already had a answer to that u dont need to ask 50 times the same question just read

 

[fox87]

Cut the shield and stick it where the RAM is, doesn't affect the temps (another user few posts suggested this back a few pages)

Fits without issue, just use some kafton tape over the ram and you can use hot glue to keep the board from moving on the metal plate that runs between the ram and gpu.

Could you maybe find the post again? Cant seem to find it.

 

[Adran_Marit]

Thank you all. Here's a clearer picture.
@Dee87
@bilalhassan341
@Danook28
@Adran_Marit

Any further input is appreciated.
Dee, This is not my work. I'm inquiring for a friend who has this Switch.

Yeah a nice good clean, then carefully bridge the trace to the via

 

[FreeLander]

Yeah a nice good clean, then carefully bridge the trace to the via

In case that didn't work. Is my next option jump-wiring the trace all the way to a specific point in the eMMC after removing it?

 

[Adran_Marit]

In case that didn't work. Is my next option jump-wiring the trace all the way to a specific point in the eMMC after removing it?

Okay so the wire need to contact from the trace to the via. If that connection isn't there you need to make thw connection from the apu to emmc which, well yeah I'd try to jump it first. That or ask someone else to repair it

 

[Dee87]

In case that didn't work. Is my next option jump-wiring the trace all the way to a specific point in the eMMC after removing it?

if u do it propely it should work .

use 0.1mm wire or solder repair pads , but 0.1mm should be good enough for that job.

but add Uv mask on the ground that is exposed

if not there are pcb adapter that pinout Dat0 Cld Cmk that would be the best imo.
u have to remove the emmc set the adapter and on that u set the emmc they are preballed when u buy them

 

[juanvlc]

@darviral sorry mate, what is the resistor size you used on mosfet. Thanks

 

[deeps]

Hello guys. Is there an alternative trace for point D? Oled

if you use the green dat0 adapter, the D (and A) point is available on that

 

[Sainty]

It would seem that the RP2040-Tiny boards on the Waveshare site are no longer on back order!!

Both with and without the USB port adapter!

Wonder if it now has the right resistors?

 

[Danook28]

Interesting. If there was too much grinding and CLK is bridged to ground. How would you fix it?

Post automatically merged: May 24, 2023

By removing the eMMC chip and soldering a wire to the third point? Is this how you do it?

You must desolder iron blob on clk point if it bridge to ground by use soldring wick. And before do that use multimater read diod mod it give you read 0.629 v. If Short to ground do the up guide . Then put soldring mask between clk and ground. Becarefull do not rip clk point.



To much bridge clk to ground then see this video he conect clk way from inside shell you can cut there and solder clk from half or jumper wier if that work and read with multimater . And the short well stop coz the clk well be way from the point that bridge to ground see pic.

Put fulx on clk or iso prop alcohol use mini grinder.



If clk point is not connected at its end to another side at its end only. This is just an attempt to help and please correct me if I'm wrong. I hope the problem will be solved in an easier way without damaging the device.

 

[BlownUpTurtle]

What do you guys use for neatly cutting the outer shield so the pico doesn't bulge. I have a mini drill set and I've tried both red bits, which were awful. A simple scissors cuts fine but don't look pretty at the end. Any suggestions among these?

I used scissors

 

[FreeLander]

if you use the green dat0 adapter, the D (and A) point is available on that

I remember seeing that but couldn't find it anywhere. What does it call?