initial

README.md

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+# 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
+- [imx_usb_loader](https://github.com/boundarydevices/imx_usb_loader) a binary is included, but feel free to compile it
+
+
+![Pogo](images/pogo1.jpg)
+![USB-C Breakout](images/usb1.jpg)
+
+
+## Recovery Mode
+* 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
+* 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]*
+* run `./imx_usb`
+* should see *USB Mass Storage device detected*
+* should see a new mountable block device
+
+
+
+

imx_usb.conf

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+#vid:pid, config_file
+0x15a2:0x0076, mx7_usb_work.conf

mx7_usb_work.conf

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+mx7
+#hid/bulk,[old_header,]max packet size,dcd_addr,{ram start, ram size}(repeat valid ram areas)
+hid,1024,0x910000,0x80000000,1G,0x00900000,0x20000
+#u-boot.imx:dcd,plug
+#zImage-4.14.78:load 0x80800000
+#zero-sugar.dtb:load 0x83000000
+#initramfs.cpio.gz.uboot:load 0x83800000
+#u-boot.imx:clear_dcd,plug,jump header2
+u-boot-ums.imx:jump header
+#file:dcd,plug,load nnn,jump [nnn/header/header2]
+#jump nnn - header is after last downloaded word
+#            entire file is loaded before jump, needs load nnn as well
+# i.e. file:load nnn,jump nnn
+#jump header - only length parameter is downloaded
+#header - uses existing header(error if none), but clears plug and dcd values unless plug also specified
+#header2 - uses 2nd header found(error if none)
+#plug - without jump uses header but clears plug flag to stop after plug execution
+#load nnn - load entire file to address
+#../u-boot-imx6/u-boot.bin:dcd,plug,jump header
+#:modify,020e02a8,7,1
+#:modify,020e00bc,7,4
+#:read,020e02a8
+#:read,020e00bc
+#:read,020c4078
+#:modify,020c407c,0,0f000000
+#:modify,020c4080,0,c00
+#:read,020c4084
+#../imx_utils/mx6_ddr_init_xm.bin:dcd
+#../u-boot-imx6/u-boot.bin:load 0x13effc00
+#../u-boot-imx6/u-boot.imx:load 0x13f00000
+#../u-boot-dirk/u-boot.imx:load 0x13f00000
+#u-boot-6w.bin:load 0x13effc00
+#u-boot_1103.bin:load 0x13effc00
+#u-boot_1103.bin:jump header
+#../imx_utils/mx6_ecspi_ram_write_xm.bin:clear_dcd,plug
+#../imx6_obds/output/mx61/bin/diag-obds-mx61qsb-rev1.bin:jump header