Hacking Hardware Picofly - a HWFLY switch modchip

rsilveira1991

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mikruzer

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Thanks my friend. I've tried but doesn't work. Now It stock on Nintendo Switch Logo. After that tried changing the wi-fi/BT module but no luck too.

I don't know what to do for now.
If have any sugestion.

I got this NSW Just for study.
this tutorial on yt by
sthetix "UNBRICKING THE NSW LEVEL 3"
 

jkyoho

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I have got myself a Nintendo Switch lite with Picofly modchip and it's already jailbreak with atomsphere.
How do I turn on RCM again without RCM jig? I'm going to install Edizon and other hombrew on it.
only unpatched v1 need a Jig to go into RCM if AutoRCM is off. All the rest modded/chip-mod model will always cold boot to payload from SDcard unless the modchip failed or soldering issue,
 

superxoi

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Thanks my friend. I've tried but doesn't work. Now It stock on Nintendo Switch Logo. After that tried changing the wi-fi/BT module but no luck too.

I don't know what to do for now.
If have any sugestion.

I got this NSW Just for study.
You mean stuck on logo? Is it joycon logo or it show nintendo letter then shutted off. If it was joycon logo, your switch has full partitions on emmc already. Try to replace the wifi ic if it was the case.
If it was nintendo letters then shutted off , it meant your console only has boot0,boot1 and lacks some partitions on the emmc(assuming it was the emmc as you above mentioned).
If you are not sure then up a picture of which stage your console is on then.
Post automatically merged:

Check m92t36, if software repair doesn't help
The switch can boot sucessfully without the m92t ic so no need to check.
 

rsilveira1991

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You mean stuck on logo? Is it joycon logo or it show nintendo letter then shutted off. If it was joycon logo, your switch has full partitions on emmc already. Try to replace the wifi ic if it was the case.
If it was nintendo letters then shutted off , it meant your console only has boot0,boot1 and lacks some partitions on the emmc(assuming it was the emmc as you above mentioned).
If you are not sure then up a picture of which stage your console is on then.
Post automatically merged:


The switch can boot sucessfully without the m92t ic so no need to check.
Its on joycon logo. already changed wifi IC.

This console have the emmc burned and APU.
Then I change the APU and EMMC from anothers bad consoles.
 

thesjaakspoiler

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I have got myself a Nintendo Switch lite with Picofly modchip and it's already jailbreak with atomsphere.
How do I turn on RCM again without RCM jig? I'm going to install Edizon and other hombrew on it.
You don't need to. Just turn it on and it will boot into Hekate or Atmosphere.
Your Switch Lite doesn't have the vulnerability to use RCM to boot with a custom firmware.
That is why you need the picofly to boot.
If you need to copy some files over, the latest Atmosphere has an option to act as a usb stick.
Then you can copy homebrew app over by just connecting it to a PC/Mac.
 

superxoi

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Its on joycon logo. already changed wifi IC.

This console have the emmc burned and APU.
Then I change the APU and EMMC from anothers bad consoles.
If it was joycon logo that meant your emmc is good with full partitions already. You have good cpu and emmc. Change another wifi ic and make sure it a good one.
 

Eds05

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Which RP2040 board are you using?

It looks like your console is stuck in one of the boot stages. More details about fault diagnostic and general boot sequence you can find on this (excellent) wiki: https://www.retrosix.wiki/first-stage-boot-short-checks

While you read through it, measure all the points connected to Pico with multimeter in diode mode (red probe on GND) and report values here, it could help to understand if the values are ok and there're no short on DATA lines and +3.3V rail. Eventually remove the Pico and CPU MOSFETs, the wires you can just isolate so they don't create an unwanted short.

Measure all the caps around M92T36, BQ24193, P13USB and MAX chips to see if there're no shorts as well.

Follow the steps in the wiki to see if you can identify any of the issues.

Thanks for helping, I fixed it. It was something ridiculous… the vcc wire on the pico was broken … I didn’t see it under the kapton tape 😂

This one is fully working now 👌🏻
 
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rsilveira1991

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If it was joycon logo that meant your emmc is good with full partitions already. You have good cpu and emmc. Change another wifi ic and make sure it a good one.
Thanks for help.
I remake the reball of APU again. And ir Works.

Probably the soldar of the wi-fi Point doesnt good.
 

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Deleted member 698398

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I had a picofly installed by somebody over a year ago. I think they used the wrong resistors for my eMMC. I have a Toshita one. I can make and restore backups in Hekate perfectly fine. As well as boot into OFW for a decent amount of time (to keep it up to date with emu eMMC). But putting the console to sleep on sys eMMC is a near instacrash (usually under a minute). I've tried formatting too. Didn't help. But, oh well. Like I've said, I've had it for over a year and nothing bad has happened. I just can't use the internal eMMC.
 

rull_bull

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I have got myself a Nintendo Switch lite with Picofly modchip and it's already jailbreak with atomsphere.
How do I turn on RCM again without RCM jig? I'm going to install Edizon and other hombrew on it.

Picofly = glitch cpu boot process, forget about all you read about RCM because your lite dont have RCM bug (only for unpatched switch v1 switches)

So start over and read (skip every part that is about RCM because that information is useless to you)
 

deeps

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I had a picofly installed by somebody over a year ago. I think they used the wrong resistors for my eMMC. I have a Toshita one. I can make and restore backups in Hekate perfectly fine. As well as boot into OFW for a decent amount of time (to keep it up to date with emu eMMC). But putting the console to sleep on sys eMMC is a near instacrash (usually under a minute). I've tried formatting too. Didn't help. But, oh well. Like I've said, I've had it for over a year and nothing bad has happened. I just can't use the internal eMMC.

I don't see any question here. Yes, the resistors are most likely the reason for not being able to run from emmc
 

Deleted member 698398

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I don't see any question here. Yes, the resistors are most likely the reason for not being able to run from emmc
Not a question. More-so just me saying that even if your syseMMC isnt completely usable, as long as you're fine with only using emueMMC, you're likely still good. Like I said, I had mine modded at the beginning of last year and it works fine still. No corruption or anything.
 

naldo29

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Having this issue iwth my oled. I did kamikaze, it went great. Got it to boot up and setup emmunand properly and started using it then out of no where while entering dbi my console shut off and it gets stuck at the nintendo logo, i checked my cpu flex cable and one of the capacitors seemed a bit loose so i fixed that but the same issue is still persisting. It boots up to hakete, but no matter where i boot into, sysnand emunand or OFW it gets stuck in the nintnedo logo. Any advice into what to check? thanks!
 

Hassal

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Having this issue iwth my oled. I did kamikaze, it went great. Got it to boot up and setup emmunand properly and started using it then out of no where while entering dbi my console shut off and it gets stuck at the nintendo logo, i checked my cpu flex cable and one of the capacitors seemed a bit loose so i fixed that but the same issue is still persisting. It boots up to hakete, but no matter where i boot into, sysnand emunand or OFW it gets stuck in the nintnedo logo. Any advice into what to check? thanks!
Getting stuck on the logo can only mean one thing, there's a problem in your system partition. Though I'm not sure how you managed to cripple both since its usually one and not the other since they are separate entities.

You probably made a mirror of your sysNAND when its on the brick going bust.
 

CarlosCruz

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Hello @psycho-neon. Have chips manufactured with component assembly. I put three, all three flashed correctly. The first chip rarely does not turn on with the console, the second went well and the third directly does not turn on with the console. Have they given you any problems? I'm thinking about throwing them away and sticking with my Rp2040s, which never fail me.
 

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psycho-neon

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Hello @psycho-neon. Have chips manufactured with component assembly. I put three, all three flashed correctly. The first chip rarely does not turn on with the console, the second went well and the third directly does not turn on with the console. Have they given you any problems? I'm thinking about throwing them away and sticking with my Rp2040s, which never fail me.
Never had issues with mine 100s of them. They all boot fine. Had my second batch of 100s coming in a few days as well.

You can try removing the cap above the oscillator.
 
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