Hacking Hardware Picofly - a HWFLY switch modchip

abal1000x

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I believe somebody who reball the SOC itself can test in which soc pin that this caps is connected, and unfortunaltely i dont have access to that.
If i have to take a guess then it should be one of those.
It seems that number 2 is ground.
Anyone have a link for Tegra X1 pinout?
View attachment 379980
Theres possibility that it might not come from that, if nvidia tegra have something like internal voltage ref, and that pinout only used to add a capacitor on it.
 

Dee87

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I believe somebody who reball the SOC itself can test in which soc pin that this caps is connected, and unfortunaltely i dont have access to that.
If i have to take a guess then it should be one of those.
It seems that number 2 is ground.
Anyone have a link for Tegra X1 pinout?
View attachment 379980
what excatly do u need i do have donors where i can take the apus off of the board

but its gonna take till tonight or tommorow not sure when i have the time for it
 
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QuiTim

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Quick question. Has anyone recently had further experience with irf8736? Just got one, it's a chunky boy and I will fit a 1k pull down in the install but will have to trim the shield bridge but wanted to know any more info on people's experience with it.

And, does the aon7506 fit snug near the soc with out any need for trimming the metal seperating the ram and soc bit?

What do you recommend from an install and performance perspective between these two, seemingly, champ mosfets.

Appreciate it 👍🏻
Here is a video of 8714 (same size). You have to cut the shield bridge to fit but I would suggest you cut 2/3 of the legs and solder to the side of the mosfet this way you don't risk scratching the board and I't might even fit under the shield without cutting anything because if you solder on the legs, the excess solder adds some height to the mosfet.
As for aon7560 it fits perfectly without any modifications (see pictures). I did add some solder mask as safety measure because you can never be too careful.
 

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cgtchy0412

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As for aon7560 it fits perfectly without any modifications (see pictures). I did add some solder mask as safety measure because you can never be too careful.
That last pic, its just perfect. :grog:
Post automatically merged:

what excatly do u need i do have donors where i can take the apus off of the board

but its gonna take till tonight or tommorow not sure when i have the time for it

With the soc detached and all pads are cleaned. Please measure these three point connect with which pin ( pins ? ).
Direct connection should be zero ohm.
My guess is point no 3 should connect with any pins which soldered on to G trace (but i can be wrong here).

Thanks to @QuiTim for the pic.

1687776747530.png
 
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JaRocker

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Last edited by JaRocker,

Danook28

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Mr Skinner

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finally did one of these RP2040 installs; good learning experience after several years since my last SAMD21 install. went with a seeed xiao RP2040, dual mosfet. relocated the status LED to the front of the board where the (nearly) unused home button LED was, so it can act as an external status indicator. boot times seem good. quite pleased

View attachment 379924 View attachment 379925

View attachment 379927
this is porn :wub: . Please read the rules of GBATEMP before posting.
 

lightninjay

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LED how he do that????
They explained how a few pages back, after their initial post.
I completely removed the home button LED; it was originally on the two pads on the right side of where the RP2040's status LED is now. the top pad is constant 3.3V, which is convenient as the status LED needs that as well. the bottom pad is a switched ground to control the original home button LED; I repurposed this to break out and connect the data line of the status LED. I then manually ran a ground wire directly to the status LED. in the extremely unlikely event that nintendo further utilizes the notification feature and the home button LED "turns on" with my status LED in place, no ill should happen, as it would only be grounding the data in pin while the status LED is not in use.
 

vulp_vibes

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can this be done without replacing the LED?

perhaps; maybe by mounting the status LED further away, perpendicular to the motherboard, such that it is casting its light into the side of the translucent cover, instead of resting under it and casting upward. hopefully that would still diffuse it enough to be evenly lit. I had done something similar with the status LED of my SAMD21 installs on the original switch using the light sensor, where it cast into the side of the sensor's light pipe. if I do another install I will play around with other solutions
 
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BlueBeans

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I have an oled here that continues to says that RST is not connect. It is very much connected. Any thoughts?
 

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abal1000x

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Someone can explain me this error :

==* CPU always reach BCT check (no glitch reaction, check mosfet)
As the comment is. Check the mosfet.

The emmc stage is good, the glitch executed via 'cpu pin', but theres no response.

Check the mosfet, maybe the 'cpu pin' connection with the G of mosfet is disconnected. Or maybe the D of mosfet is not connected. Check the resistance between the D and GND, the good value is around 10-60ohms.
Post automatically merged:

Mine is at 1.3. How do I fix it?
I suspect theres some short in somewhere.
 

BlueBeans

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As the comment is. Check the mosfet.

The emmc stage is good, the glitch executed via 'cpu pin', but theres no response.

Check the mosfet, maybe the 'cpu pin' connection with the G of mosfet is disconnected. Or maybe the D of mosfet is not connected. Check the resistance between the D and GND, the good value is around 10-60ohms.
Post automatically merged:


I suspect theres some short in somewhere.
Ok that line or just somewhere in general?
 

FreeLander

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Hello,
Just to make sure I got a full uf2 file, I ran a hex comparison between Github's and Rehus's 2.73 files and found differences, I'm guessing maybe because it was changed to pdf? (renamed it). Which version to use would you use, @rehius? <3
 

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lightninjay

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Hello,
Just to make sure I got a full uf2 file, I ran a hex comparison between Github's and Rehus's 2.73 files and found differences, I'm guessing maybe because it was changed to pdf? (renamed it). Which version to use would you use, @rehius? <3
A lot of this may have to do with how you download from github as well.

Some people right-click and hit save as, and I believe this is the method people have issue with.

Click the link, then click "Download" to the right and I think that gets the correct file.
 
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