Hacking WIP [Trinket] [Rebug] [Others] SWITCHBOOT_UF2 / FUSEE_UF2 modchip software

[mattytrog]

Madturbo123, did you finally find a solution for the RCMX86 usb problem?

I have the same problems and I suspect that the IC USB logic chip is who is causing the issues.

Did you try unsoldering straps?

It's the usb logic chip that's doing it. Notice how rcmx86 inject slower than a rebug or trinket

 

[FR0ZN]

Aren't Rebug, Trinket and RCM-X86 all using the same USB chip ?

EDIT: Oh wow, I just noticed that Rebug and Trinket don't even have such a USB logic chip ? Wth?

 

[kermit84]

Hi , matty i am happy to write about the new universal method i love it and it have the best performing with 3V

My last question i hope is :

I have soldered : Joycon Strap + USB Strap
i miss only the volume + Strap and my question ist :

When i solder vol+ how i can boot to orginal firmware ? Must i push the trinket button when i am on horizon os or mist i push Power + Vol+ for boot into Orginal Horizon os ?

I Love your Work and thx for everyone to help me

Greets
Kermit

 

[mattytrog]

Hi , matty i am happy to write about the new universal method i love it and it have the best performing with 3V

My last question i hope is :

I have soldered : Joycon Strap + USB Strap
i miss only the volume + Strap and my question ist :

When i solder vol+ how i can boot to orginal firmware ? Must i push the trinket button when i am on horizon os or mist i push Power + Vol+ for boot into Orginal Horizon os ?

I Love your Work and thx for everyone to help me

Greets
Kermit

No sir.

To dual boot with vol strap installed...

See switchboot part 1?

Choose joycon only. This will give you dual boot.

So... Flash "joycon" uf2, then flash switchboot part 2 uf2.

 

[kermit84]

At this point i cant understand

For Dual Boot first Flash Joycon Uf2
than directly Switchbootpart 2 ?

I have AutoRCM on , for safe

Must i than flash the trinket 2x ?


Greets
Kermit

 

[luzifers]

It's the usb logic chip that's doing it. Notice how rcmx86 inject slower than a rebug or trinket

Anything we can do about it?

Isn't that chip needed for the RCMX86 to work?

 

[mattytrog]

At this point i cant understand

For Dual Boot first Flash Joycon Uf2
than directly Switchbootpart 2 ?

I have AutoRCM on , for safe

Must i than flash the trinket 2x ?


Greets
Kermit

Yes. There are two parts. Part one is the trinket bootloader which has been modified for strap control. I call this "Switchboot part 1".

You only need to flash this the once.

This will leave the rest of the chip blank. At this point, we flash part 2 to fill in the gaps in the rest of the chip.

So, part 1 never needs updating, unless you wish to change from dual boot to perma-cfw boot.

We only need to update part two when new features are added.

Part 1 = strap control
Part 2 = payload operations

--------------------- MERGED ---------------------------

Anything we can do about it?

Isn't that chip needed for the RCMX86 to work?

You can remove it, but you will need to jump wires to the USB pads.

I think there is a resistor you can remove. Can't remember 100%

If you look in modchip thread, a loooooooong time ago, I did some testing and stuff with the rcmx86.

Tell you something... The guys who made it are the nicest chaps in the world. But at the time, it wasn't anticipated that the usb logic chip could cause problems.

But now usb transfers are a thing, this "seems" to be the culprit in every circumstance.

In going to see if I can track down a datasheet for the usb logic chip. There may be a serial command to switch it off permanently and just allow passthrough of the samd21 usb data lines. Maybe.

 

[Moneyforthecash]

Got a new Trinket M0 chip.
When I copy the .UF2 files with 512KBs to the Trinketboot system it turns off. But when I plug it back into the PC no switchboot drive appears.

It always remains the TRINKETBOOT drive.

When I touch the board the USB disconnect tone sounds and the LEDs start flashing.
Fear that it is hardware defective. What do you think?




Edit:
I've done it now. Thought I could switch to Part 2 but the post in front of me showed me the right way.

However, I find it very strange that my Trinket M0 separates when I touch it on the board.

 

[mattytrog]

Got a new Trinket M0 chip.
When I copy the .UF2 files with 512KBs to the Trinketboot system it turns off. But when I plug it back into the PC no switchboot drive appears.

It always remains the TRINKETBOOT drive.

When I touch the board the USB disconnect tone sounds and the LEDs start flashing.
Fear that it is hardware defective. What do you think?

View attachment 165684 View attachment 165685


Edit:
I've done it now. Thought I could switch to Part 2 but the post in front of me showed me the right way.

However, I find it very strange that my Trinket M0 separates when I touch it on the board.

You have flashed wrong file. You are using method3 or legacy 3 file I guessing.

Touch pin 2 or 4... Guess it reboots the chip

 

[mattytrog]

OK... Hit a few snags during my implementation of the decrypted "dump" feature...

Someone wanna try this?
On main screen, underneath "About", you will find "Test".

Select this, and what this does, is dump your emmc "save" folder to sd (decrypted/save).

Will someone just test it for me? See if it something anyone would use? I did another implementation but was problematic... So thats the reason for the delay.

 

[FR0ZN]

You can remove it, but you will need to jump wires to the USB pads.

I think there is a resistor you can remove. Can't remember 100%

If you look in modchip thread, a loooooooong time ago, I did some testing and stuff with the rcmx86.

Tell you something... The guys who made it are the nicest chaps in the world. But at the time, it wasn't anticipated that the usb logic chip could cause problems.

But now usb transfers are a thing, this "seems" to be the culprit in every circumstance.

In going to see if I can track down a datasheet for the usb logic chip. There may be a serial command to switch it off permanently and just allow passthrough of the samd21 usb data lines. Maybe.

The github of this modchip says something about it in very broken english, maybe this is what you meant?

https://github.com/euclala/RCM-X86#if-you-want-to-bulid-you-project

 

[Moneyforthecash]

Someone wanna try this?

I would if I could. Where to copy the Switchboot.bin file?

Today we soldered the chip successfully, the Switchboot menu will be shown when switching on.

Unfortunately the Swicht doesn't boot anymore because after the Nintendo logo appears it switches off again.

Auto RCM is activated.

I can still get into the SX OS boot menu.


Edit: After a short loading time the CFW now boots :-D

 

[luzifers]

You can remove it, but you will need to jump wires to the USB pads.

I think there is a resistor you can remove. Can't remember 100%
(the new units are send without the resistor that you say, because I saw a video of a guy removing a resistor that It's not anymore in the RCMX86 chips that are being sold.)

If you look in modchip thread, a loooooooong time ago, I did some testing and stuff with the rcmx86.

Tell you something... The guys who made it are the nicest chaps in the world. But at the time, it wasn't anticipated that the usb logic chip could cause problems.

But now usb transfers are a thing, this "seems" to be the culprit in every circumstance.

In going to see if I can track down a datasheet for the usb logic chip. There may be a serial command to switch it off permanently and just allow passthrough of the samd21 usb data lines. Maybe.

I would appreciate it. I would like to try to solve the usb problems.

What I don't understand, its why josete2k it's not having problems with his rcmx86 using the usb in any circumstances.
We bought it to the same seller on Aliexpress with a week of difference.

If you find someway to switch off the usb logic, please let me know to try it out.

Thanks!

 

[Moneyforthecash]

I still read my eyes sore here :-)

Meanwhile everything works without any problems. For this I would like to thank you @mattytrog.

Now I would have only one wish and that would be the permanent CFW boot.

My configuration:

• Trinket M0
  
• with Joycon cable
• without Vol+ cable
• without USB disconnect cable
• auto RCM = OFF
• OFW 7.0.1
• CFW Emunand 8.0.1

I flashed the following files one after the other to the Trinket M0:

1. Both_Control_Joycon_VolUp\Trinket\SWITCHBOOT_TRINKET_JOYCON_VOLUME.uf2 (with the other 3 files from Part 1 download)
2. TRINKET_LEGACY3_SWITCHBOOT_PART2_V132.UF2

I use SX OS and copied the Payload.bin to the SD card.

When I press the Power button it starts into the Horizon.
If I press the Power button + Vol up it starts the SX OS (With the OS SX Payload menu it is possible to boot into the original firmware)

What have I missed or done wrong to set the permanent CFW boot?

 

[Gismor]

I still read my eyes sore here :-)

Meanwhile everything works without any problems. For this I would like to thank you @mattytrog.

Now I would have only one wish and that would be the permanent CFW boot.

My configuration:

• Trinket M0
  
• with Joycon cable
• without Vol+ cable
• without USB disconnect cable
• auto RCM = OFF
• OFW 7.0.1
• CFW Emunand 8.0.1

I flashed the following files one after the other to the Trinket M0:

1. Both_Control_Joycon_VolUp\Trinket\SWITCHBOOT_TRINKET_JOYCON_VOLUME.uf2 (with the other 3 files from Part 1 download)
2. TRINKET_LEGACY3_SWITCHBOOT_PART2_V132.UF2

I use SX OS and copied the Payload.bin to the SD card.

When I press the Power button it starts into the Horizon.
If I press the Power button + Vol up it starts the SX OS (With the OS SX Payload menu it is possible to boot into the original firmware)

What have I missed or done wrong to set the permanent CFW boot?

Hey,
you write "without Vol+ cable" but for permament boot into cfw you need the Vol+ Strap connected.

 

[Moneyforthecash]

Hey,
you write "without Vol+ cable" but for permament boot into cfw you need the Vol+ Strap connected.

Thank you, then I'll unscrew the case again on occasion.
How much is the USB Disconnect wire recommended?

 

[Gismor]

Thank you, then I'll unscrew the case again on occasion.
How much is the USB Disconnect wire recommended?

ask matty he is the wire expert

 

[mattytrog]

Thank you, then I'll unscrew the case again on occasion.
How much is the USB Disconnect wire recommended?

Depends on if you have a problem getting stuck in RCM when you disconnect from pc...

The usb strap is not mandatory. And will only be used if you have permanent cfw launching.

If only using as dual boot, it isn't used. Or rather, it is set up, but ignored.

--------------------- MERGED ---------------------------

V1.3.3 switchboot coming. Not been feeling 100% this past few days, so had a break from Switches.

Forgot I was meant to be pushing v1.3.3

Anyway... Final changelog: coming this afternoon/maybe 6pm BST

• Graphic bugs squashed.
• Bootlogo shows for correct amount of time after sept splash screen
• Vertical bar fixed when screen buffer emptying
• Dump NCA emmc firmware files. They go to SD:/decrypted/Contents/registered
• Dump save emmc files. They go to SD:/decrypted/save.

Think I may make an optional part 3 switchboot containing these functions later. And usb.

126296 isn't much space

 

[Moneyforthecash]

Think I may make an optional part 3 switchboot containing these functions later. And usb.

You could also create an all in one package ordered by chip. Using numbered folders for the procedure.

For other newbies it is necessary to change the section b in the first post:
Get into bootloader mode. If you know how to get your UF2 drive up, skip this.

I was really desperate because I thought we had swapped the wires while soldering until I read somewhere on page X that it doesn't work with firmware +7 as described.

 

[mattytrog]

You could also create an all in one package ordered by chip. Using numbered folders for the procedure.

For other newbies it is necessary to change the section b in the first post:
Get into bootloader mode. If you know how to get your UF2 drive up, skip this.

I was really desperate because I thought we had swapped the wires while soldering until I read somewhere on page X that it doesn't work with firmware +7 as described.

Yeah a lot needs updating. Just finding the time.

There is a samd update option now. Just select that and follow instructions