I got the same chip.Hello everyone!
Did someone installed this chip? It's a new variant of the RCM-X86, called Trinket X86 v1.1.
I'm having trouble programming this chip (boots with SXOS boot.dat).
I've only soldered, GND, 3.3V, D+ and D-.
My switch has AutoRCM enabled anyways, so no need for volume straps.
When I turn the thing on it flashes some blue and green leds and asks me for "boot.dat?".
After some googling I figured that must be the loader for SXOS.
I finally got around it, by using the boot.dat/boot.ini from SX Gear, which lets you load your own payload.bin.
So in the end I got it to chainload into hekate.
However, I really would like to program it with Fusee suite instead.
When I inject samd21_update.bin and press reset twice it doesn't spawm a folder for flashing?
Any ideas?
Also is it a trinket or a RCM X86?