reMarkable 2 Recovery / Unbricking

Tools for recovery (works only under Linux)

Prerequisites

To put the rM2 in recovery, you will need:

USB-C breakout board
Pogo pin adapter to usb the pogo pins are as follows, when viewed from the side, device facing up (VBUS is near the usb-c) GND,ID,D+,D-,VBUS
imx_usb_loader a binary is included, but feel free to compile it

run dmesg -w on your host to monitor
power off the device
connect the USB-C breakout board
pull down B8 (connect a 10K resistor to GND)
connect the pogo pins to the tablet and to the host usb
make sure the connection is good, use a short good, different cable, etc
if the device does not start on its own, press the Power Button
you should see a new device USB HID v1.10 Device [Freescale SemiConductor Inc SE Blank ULT1]
remove the pulldown resistor (disconnect B8)
run ./imx_usb
should see USB Mass Storage device detected
should see a new mountable block device