You need to use SAMD21 update mode. If you cannot access, send latest Switchboot.bin using tegraRCMsmash and select "Reboot - SAMD21 update".@mattytrog thanx for your answer
Do you know what could be my problem to get the modchip to bootloader mode?
What is wrong in my steps ?
i boot to Horizon OS CFW and in home screen i double press reset button on trinket after some short time purple and red static led, the red + green LED will flash about 8 times but i dont see any additional drive letter (or any new partition in drive managment) in windows if i connect the usb cable to pc after double press reset
tried to press reset in sleep mode too from horizon os and then connect the cable but it does not work too :-(
do i have to have the joycons connected for the procedure ? here it does not work with or without ...
To everyone else: Simplified things ALOT.
Take a look in OP. See if its better