Tutorial  Updated

Internal modchip - SAMD21 (Trinket M0, Gemma M0, ItsyBitsy M0 Express) Guide, Files & Support

Notice: I am not receiving notifications for this thread. I didn`t realise people were still posting in it.

Please please accept my apologies if I haven`t replied to tags etc... I have no idea what is happening. I`m subscribed to this thread but I am not receiving notifications. Please inbox me if possible. Or tag me in another thread.

Its amazing that people are still checking all of this out. I thank you for all of the help and support I have received in this thread over this year.

Cheers. Matty.


A video showing a modchip in action. Thank you once again to @metaljay for providing this. This is what you can achieve by fitting a chip!



Section 1. Gather your software.

Get your chip software from THIS THREAD.
Follow the flashing instructions there...




Section 2. Removing USB port and unneeded LEDs. (Adafruit chips only)
  • Next, we need to remove the USB port from the modchip. I recommend a heatgun or a rework station. Heat up until the USB port just lifts off the modchip.
  • Do the same for the LED just to the right of the USB port.
See picture:
20181031_110415.jpg


You are now ready to fit your device. Proceed to Fitting section.





Section 3. Fitting modchip to your Switch.
New Universal Method. All SAMD-based internal chips. If your chip is not supported and you cannot work it out, PM me.

Trinket M0.
Solder as laid out in the following picture

trinketfinal.jpg

==================================================
Rebug SwitchME M0. Use Trinket files.
Solder as laid out in the following picture

rebugfinal.jpg

==================================================
RCMX86 - Internal modchip version.
Solder as laid out in the following picture

RCMX86-Internal-Final.jpg


==================================================
Gemma M0. Use Gemma files.
Solder as laid out in the following picture


gemma final.jpg

==================================================
ItsyBitsy M0 Express. Use ItsyBitsy files.
Solder as laid out in the following picture

itsybitsyfinal.jpg




==================================================
Feather M0 Express. Use Feather files.
Solder as laid out in the following picture

feather_final.jpg




BUILD YOUR OWN FROM A QFP ATSAMD21E18. Trinket equivalent pins.
Flash Trinket bootloader using OpenOCD via serial pins SWDIO / SWDCLK. Fit a reset switch somewhere... Or going to power / wake (aka method 2). If building for external use, it is good practice to fit a third capacitor between 3V & GND. This is deliberately vague and ambigious, as this needs research and you need to know what you are doing.

Link for setting the Pi up with OpenOCD: HERE
Raspberry Pi OpenOCD image in downloads section or HERE
SAMD pi connection.png



Alternative Solder Points

Credit to @consolex for original pic. I`ve added alternative points to solder to:
Alternatepoints.jpg


Credit to @pyorin for this much tidier version showing the same info as the above one!
Alternatepoints2.jpg

s-l1600.jpg

alternative3v.jpg




Replacement Parts List

Ok... So you have damaged your switch soldering your chip in. Not to worry.

First things first, DO NOT BRIDGE THE CONTACTS HOPING TO REVIVE YOUR SWITCH. With resistors, you may possibly get away with this, but with the capacitors listed below, if you jump these points, you will make a nice short-circuit to the PMIC and / or the M92T36, killing them instantly. Don`t do it.

OK... I`ll list these parts with METHOD 2 & 3 TRINKET PIN NUMBERS and the values of the components they solder to.

TRINKET 3V (POWER SUPPLY) - 2.2uF 0402 size MLCC capacitor. Voltage unimportant as long as it is over 6.3v
TRINKET PIN 2 (POWER ON RESET - goes to pin 5 on M92T36)- 4.7uF 0402 size MLCC capacitor. Voltage unimportant as long as it is over 6.3v
TRINKET PIN 0 (VOL+) - 150R (150 ohms) 0201 Thick Film resistor. 50mW
TRINKET RESET (SWITCH POWER BUTTON) - 150R (150 ohms) 0201 Thick Film resistor. 50mW


I recommend RS components.

FAQ

Q - How do I boot the switch into APX (RCM) mode?

A - You need to short out pin 10 on the right joycon rail to GND with a jig or modded joycon or paperclip (not recommended... Buy a jig you cheap-ass gyppo). Once shorted out, hold down vol+ and power. The switch screen should be off... Plug into your PC and it should recognise a APX device. Well done. You are in RCM.

Q - What glue should I use?
A - Only glue if necessary! Ideally if your soldering is of sufficient quality and your wire is thin enough, you don`t need glue. I use a bit because I am OCD. Anyway, use Epoxy. It`s what I use. Gives you some working time, is solid. Superglue makes a mess DO NOT USE SUPERGLUE. The only thing super about it is how it melts things. Epoxy won`t stick to the shield long-term, so bear that in mind. Pure Acetone will remove epoxy. Acetone tends to remove / melt anything to be warned. CHECK YOUR GLUE WON`T GO CONDUCTIVE OVER TIME - LOOKING AT YOU SCAMSUNG! The combination of heat cycles and absorbing of moisture can turn adhesive into a high-impedance connection!

Q - What size wire should I use?
A - I use AWG40 magnet wire or AWG30 Kynar. AWG40 goes onto components easier... And if you snap it, chances are the wire will snap and not the trace / component.
A2 - You can also use AWG30. I recommend Kynar wrapping wire but any will do. Looks nice, good resistance to elements, tidy. Nothing thicker than AWG30. You are just causing yourself more headaches. Trust me.

Q - Is AWG40 thick enough?
A - Yes. AWG40 is good for around 90mA.

Q - which methods do you recommend?
A - Connect all the straps...

Q - how do you recommend to set it up?
A - Fusee Suite. Search for Fusee Suite or go to link at top of this OP.

Q - My switch is flat and won't turn on.
A - Have you got the charger connected? Disconnect it or your switch won't boot! Boot to a payload (SX loader/Hekate), reconnect charger and leave on the payload menu and charge. Leave for 15 minutes and switch will start normally. It will continue charging one booted.

Disclaimer:
You have only yourself to blame. This voids warranty. This may or may not get you banned from online services. If it does, you got yourself banned. I`m not responsible if you kill your switch / your first-born with any of this in this post. I`m not infalliable. I`m partly senile. Do your own research. Kids, get bill payers permission before you attempt even using a screwdriver.
NUTSHELL: Don`t come having a go at me because you fooked your £300 console up. I`ll do my best to help you though if you do, Just don`t blame me.

Credits to Quantum-Cross, Atlas44, @Ninoh-FOX , @jcrorxp , @tecfreak, @mooglazer, @subcon959, @64Dp128k, @mikeleuskaldunak, @M-O-B, CTCaer, @evilsperm, @consolex and everyone else for valuable input.


IF YOU REQUIRE SUPPORT, IF YOUR CONSOLE ISN`T WORKING CORRECTLY... PLEASE POST A HIGH RESOLUTION PICTURE OF YOUR INSTALL. You might think it isn`t your soldering, but in all cases with the new methods, it is bad soldering. So, please post a picture.


A BRIEF WARNING - PLEASE READ
THIS MOD IS NOT FOR THE FEINT OF HEART. WE ARE SOLDERING TO TRACES AND COMPONENTS ON THE FRONT SIDE OF THE BOARD TO SAVE HAVING TO REMOVE THE BOARD AND SOLDER TO TESTPOINTS. IF YOU ARE STRUGGLING, OR THINK YOU ARE GOING TO STRUGGLE, PLEASE PLEASE SOLDER TO THE TEST POINTS NOTED IN THIS AND OTHER THREADS (YOU WILL NEED TO REMOVE THE MOTHERBOARD). DOUBLE - TRIPLE CHECK EVERYTHING. YOU HAVE BEEN WARNED!!!
Good soldering skills are needed!
A magnifying glass is needed!
Good soldering iron needed - ideally with a 0.3 conical tip. No more than 30w!
SECURE YOUR WIRES PRIOR TO SOLDERING. Stick them down with double-sided tape.
Only use glue if you need to and glue wires after soldering. Don`t glue the solder to the component!
Put the tiniest amount of glue on the PCB mask only. Never on components. Use a cocktail stick for more glue control!!!
Take a look at alternative solder points to get you out of the sh*t if you do rip something off the board
If you aren`t the best at soldering, then think very carefully about connecting to pin 6 capacitor (the one in these new methods). If you rip this pad, you WILL NEED TO REMOVE YOUR BOARD and run from a testpoint.
 

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taxco

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Yes 3.3v to cap.

Remove pin 4 to other cap completely.
I have pin 3 goint to the rcm strap, Volume up btn. it to get in the osx menu. now its not working, do i miss something?

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

do i have to solder the rst wire in order for the rcm strap to work, and if your battery empty does rcm allow it to be charged? becouse in old method you could not charge if this happen?
 

mattytrog

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I have pin 3 goint to the rcm strap, Volume up btn. it to get in the osx menu. now its not working, do i miss something?

Two options
1) enable autoRCM or
2) solder power button strap to reset pad instead of pin 0.

Thought you had autoRCM
 
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taxco

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Two options
1) enable autoRCM or
2) solder power button strap to reset pad instead of pin 0.

Thought you had autoRCM
i had dual boot, i understand.
How about the autoRCM, is it no problem now for battery, like draining or allowing to charge?
 

mattytrog

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In method 1, no. If you have connected the reset pad like I just said, then no. However, doing both will cause problems.

If you connect power button to reset and enable autoRCM, your Switchme or trinket will sometimes fail to send the payload on account of the chip bring sleep at the wrong time.
 
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taxco

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In method 1, no. If you have connected the reset pad like I just said, then no. However, doing both will cause problems.

If you connect power button to reset and enable autoRCM, your Switchme or trinket will sometimes fail to send the payload on account of the chip bring sleep at the wrong time.
thank you so far all oke.

Now new problem comes, i downloaded the net osx 2.0 and with auto rcm enabled is does not work, it wo'nt auto boot to osx. does the trinket need an update?

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

had to go back to 1.9 and install auto RCM and then update to 2.0.
now all is fine.
Huge thanks for the help
 
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mattytrog

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I agree there is ZERO reason to have method 3.
We are removing it from the rebug git all together!

Think I'll join you doing that ;)

Removed method 3. Thought about it for ages, but it has been surpassed in every way.

It ruins batteries and is largely unnecessary.

I will keep software support intact (its only 1 pin) and there is the chainloader now.

But, yeah. Method 3 is obsolete now.

Quick reminder why:
  • Does LiPo / Li-Ion cells no good whatsoever. Current drain remains a problem. That regulator uses only about 1mA sleeping IN BENCH TESTS.
  • The above figure is with nothing connected. Don`t forget, it is constantly waiting for an interrupt. Not to mention the PMIC has power going through it all of the time. (It does anyway, but with method 3, its more)
  • Other parasitic drains possible (eg from M92T36, and / or the multiplexer). I haven`t measured this, but it seems to be the case.
  • Only play Switch every now and again? I bet you are sick of finding your console flat everytime you get it out of its case...
If there are a barrage of people going to tell me the benefits then I may keep it back in. But we should have the hang of this modchip malarkey now. This has been the easiest console EVER to modify. Too easy really.
 
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wiiando

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Think I'll join you doing that ;)

Removed method 3. Thought about it for ages, but it has been surpassed in every way.

It ruins batteries and is largely unnecessary.

I will keep software support intact (its only 1 pin) and there is the chainloader now.

But, yeah. Method 3 is obsolete now.

Quick reminder why:
  • Does LiPo / Li-Ion cells no good whatsoever. Current drain remains a problem. That regulator uses only about 1mA sleeping IN BENCH TESTS.
  • The above figure is with nothing connected. Don`t forget, it is constantly waiting for an interrupt. Not to mention the PMIC has power going through it all of the time. (It does anyway, but with method 3, its more)
  • Other parasitic drains possible (eg from M92T36, and / or the multiplexer). I haven`t measured this, but it seems to be the case.
  • Only play Switch every now and again? I bet you are sick of finding your console flat everytime you get it out of its case...
If there are a barrage of people going to tell me the benefits then I may keep it back in. But we should have the hang of this modchip malarkey now. This has been the easiest console EVER to modify. Too easy really.

I've experienced very little battery drain with method 3, could never get method 2 working and don't want autorcm, not had my switch die on me yet from it with days of sleep sometimes.
 
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Witalka_Shelby

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Hey guys,
I don´t know what is wrong with my switch but I try to explain.

I have a trinket m0 installed with auto rcm and everything worked fine.

my switch run of of battery, I tried to start my switch and I saw the bootscreen and the switch turn off.

I know that the switch don´t charge fast with auto rcm so I let the switch charge for 24 hours. (tried few time to start the switch) but nothing happens

do someone have a idea to fix this ?

thank you guys :)

edit:
my PC show me "Auto RCM usb device not recognized"..
 
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mattytrog

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Hey guys,
I don´t know what is wrong with my switch but I try to explain.

I have a trinket m0 installed with auto rcm and everything worked fine.

my switch run of of battery, I tried to start my switch and I saw the bootscreen and the switch turn off.

I know that the switch don´t charge fast with auto rcm so I let the switch charge for 24 hours. (tried few time to start the switch) but nothing happens

do someone have a idea to fix this ?

thank you guys :)

edit:
my PC show me "Auto RCM usb device not recognized"..

Hmmm... Can you send a payload from the PC?
 

Witalka_Shelby

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nope my PC show me "usb device not recognized"
I tried to desolder the trinket but always the same error "usb device not recognized" and "no RCM "
on my other PC I get the same "NO RCM" and "usb device not recognized"

that´s weird because the switch run only out of battery and and nothing other..

edit:
I use methode 1 with my trinket

trinket blink one time red near the usb port and than in the middle one time than nothing (if I plug the charger in)

without a charger the switch is just off (trinket don´t work also)

Video:
https://sendvid.com/loti8snd
 
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mattytrog

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nope my PC show me "usb device not recognized"
I tried to desolder the trinket but always the same error "usb device not recognized" and "no RCM "
on my other PC I get the same "NO RCM" and "usb device not recognized"

that´s weird because the switch run only out of battery and and nothing other..

edit:
I use methode 1 with my trinket

trinket blink one time red near the usb port and than in the middle one time than nothing

Right. Remove trinket completely.

Try different USB port.
nope my PC show me "usb device not recognized"
I tried to desolder the trinket but always the same error "usb device not recognized" and "no RCM "
on my other PC I get the same "NO RCM" and "usb device not recognized"

that´s weird because the switch run only out of battery and and nothing other..

edit:
I use methode 1 with my trinket

trinket blink one time red near the usb port and than in the middle one time than nothing (if I plug the charger in)

without a charger the switch is just off (trinket don´t work also)

Video:
https://sendvid.com/loti8snd

Can you check battery voltage please?
 
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ErAzOr

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As other people alredy reported, cold boot the switch with Method 2 isn't working for me as well. I'm sietching now to Method 1
 
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mattytrog

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My theory is that initial boot is fine. But if you restart, you will only restart in OFW mode. Would I be right?
 

taxco

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Method 1:
AutoRCM installed.
Siwthc in off state Draind 44% battery in 8 hour.
Is this normal, is there a solution?
 

mattytrog

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Method 1:
AutoRCM installed.
Siwthc in off state Draind 44% battery in 8 hour.
Is this normal, is there a solution?
No is not normal.

You are not removing your memory card straight after shutting down are you? There is a "mini boot power off sequence after 12 seconds of shutting down.

If you remove memory card or plug into usb during this time, it will put you in RCM.

What OS/payload are you using?

Can you post a high resolution picture of your install please?
 

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No is not normal.

You are not removing your memory card straight after shutting down are you? There is a "mini boot power off sequence after 12 seconds of shutting down.

If you remove memory card or plug into usb during this time, it will put you in RCM.

What OS/payload are you using?

Can you post a high resolution picture of your install please?
Latest OSX 2.0.
I shut if off and left it, if i plugin the charger is this same as usb?

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

No is not normal.

You are not removing your memory card straight after shutting down are you? There is a "mini boot power off sequence after 12 seconds of shutting down.

If you remove memory card or plug into usb during this time, it will put you in RCM.

What OS/payload are you using?

Can you post a high resolution picture of your install please?
I have one more witch to go from old method to new method 1, can i just switch pin 4 to 3v and keep the line on the same resistor.

thx
 

mattytrog

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Latest OSX 2.0.
I shut if off and left it, if i plugin the charger is this same as usb?

Yes.

I have one more witch to go from old method to new method 1, can i just switch pin 4 to 3v and keep the line on the same resistor.

thx

Method 1, pin 4 trinket should not be connected. This is getting confusing. You are better off posting a picture of everything you have done.
 
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