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

Discussion in 'Switch - Tutorials' started by mattytrog, Jun 20, 2018.

  1. Brusely

    Brusely Member

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    Nov 12, 2019
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    Does this only work for SX OS?
    I need one for Atmosphere
     
  2. mattytrog
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    mattytrog You don`t want to listen to anything I say.

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    Works for any firmware. Even Android and unix
     
  3. Brusely

    Brusely Member

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    Nov 12, 2019
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    When it says "You will only have dual boot" (located in the trinket M0 image) do i not need to have that connected and ill still be able to switch between ofw and cfw
     
  4. mattytrog
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    mattytrog You don`t want to listen to anything I say.

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    Have what connected sir?

    I'm assuming you mean the vol strap.

    If you leave the vol strap disconnected, it will only be possible to dual boot, as RCM requires a push of vol+.

    If vol+ strap is disconnected, it cannot do it. So it needs you to do it
     
  5. Brusely

    Brusely Member

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    Dual boot as in CFW only? Or both stock and CFW
     
  6. mattytrog
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    mattytrog You don`t want to listen to anything I say.

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    Dual boot means ofw/cfw by pressing vol button. Perma cfw is just pressing power button for cfw
     
  7. Brusely

    Brusely Member

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    So I don't need to connect that to the trinket if I'm using Dual Boot
     
  8. mattytrog
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    mattytrog You don`t want to listen to anything I say.

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    No. You dont even need the joycon RCM strap if you want to use autoRCM. We used to call this "Method 1" back in the day.
     
  9. Brusely

    Brusely Member

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    Nov 12, 2019
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    Let's say I made a mistake when programming the Trinket and it boots Hekate 1.5.3 instead of 5.0.2. Can I reprogram the trinket without a port?
     
  10. mattytrog
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    mattytrog You don`t want to listen to anything I say.

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    It's not a mistake. Switchboot version is 1.5.3.

    It's basically Hekate with a fair bit of modification.

    You are flashed correctly by the looks of it
     
  11. ModFusion

    ModFusion Member

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    Aug 1, 2017
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    Hi thank you for this thread ^^ Can i use this alternative point 3v3 ? Thank you
     

    Attached Files:

  12. mattytrog
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    mattytrog You don`t want to listen to anything I say.

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    I wouldn't. That goes to pin 5 iirc. We used to use pin 5 back in the day, until we refined the bootloader. It won't inject/ trigger RCM in time if you use that point
     
    ModFusion likes this.
  13. Brusely

    Brusely Member

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    After i installed the switchboot and Hekate Mod, i realised that it only injects Hekate 1.5.3. Right now it doesnt have a usb port, but is there any i can reprogram the device inside of my switch? (Hekate-wise)
     
  14. FunThomas

    FunThomas GBAtemp Advanced Fan

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    Jan 10, 2016
    Gambia, The
    as @mattytrog said you mean Switchboot 1.5.3
    Hekate exists only in version 1.5.1 and then 1.6 there is no 1.5.3 and it will be hard to find a version from may 2018 now

    is your hekate menu in text or graphical UI ?
    can you make a screenshot of your hekate menu?

    if you want to reprogramm the modchip you need the samd-update mode payload and follow the steps
    https://gbatemp.net/threads/trinket-rebug-others-switchboot_uf2-fusee_uf2-modchip-software.526607/

    but i am sure there is a misunderstanding
     
    Last edited by FunThomas, Nov 26, 2019
  15. mattytrog
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    mattytrog You don`t want to listen to anything I say.

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    Yes. Go to switchboot thread and have a read of op.

    Hekate isn't v1.5.3. even though it says
    He has the new version. NYX is picking the version number up
     
  16. ModFusion

    ModFusion Member

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    Aug 1, 2017
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    Hi I have a problem i'm not able to charge the switch when it's powered off.
    I need to power on to charge the switch.
     
  17. luzifers

    luzifers Member

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    Aug 9, 2018
    Spain
    Hi @mattytrog

    I've installed the RCMX86 v2.0 without USB logic chip. Everything was working fine but recently I've realised that the USB is not working properly and it was before.

    I put the switch in rcm mode to use tegrarcm to inject a payload but it's not recognised by the computer, it shows a message of an error from the last USB device connected.
    USB devices are not recognised into Sxos to load xci, and nxmtp to mount the switch as a device its also not working. The first time I installed the chip all this things were tested and they worked.

    Every time I connect the usb, the switch charges properly and I can use the Dock to play on the TV without problem.

    I've checked all the solder points and they look OK and tested ok in continuity.

    I've tried to disable the samd21 with a file you gave previously on the forum but I continue having the same problems with the usb.

    I remember that you told me about worng GND connection could produce that kind of problems. My GND is connected to one of the USB screws, but when I test for continuity in every GND point the test it's flawless.

    Any thoughts?

    Thanks.
     
  18. ModFusion

    ModFusion Member

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    Aug 1, 2017
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    EDIT : It's all good now i had to press 2 times the button of the modchip ;)
     
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  19. mattytrog
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    mattytrog You don`t want to listen to anything I say.

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    Apr 27, 2018
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    OK... What file are you using for your chip?

    How long are your cables / in particular the USB signal lines?
     
  20. luzifers

    luzifers Member

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    Aug 9, 2018
    Spain
    I was using RCMX86 PART1 Dualboot and the TRINKET M0 PART2 SWITCHBOOT (because the new RCMX86 V2 it's like a Trinket M0), and was working flawless. Now I've tried to update the PART2 with the last version, I've also changed for the RCMX86 version, and tried with FUSEE version too, but I get the always the same problem.

    I also tried to disable the chip with a disable samd21 UF2, but the USB problem continues.

    The cables are the same I was using in my previous RCMX86 first release with IC USB Logic chip, and after your solution in your last UF2 releases was working flawlessly with these cables.

    I could try to make the USB signal lines a little bit shorter just in case its longitude could be causing this USB problem.

    Should it cause problems even with the chip disabled?
     
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