Cherry Theobroma PX30-mQ7 User Manual page 34

Then, insert a micro-USB cable into the USB-OTG port (see Fig. 3.8 USB 2.0 OTG port (dual-role port: can be used as a host or
device interface)) on the baseboard and into a USB port of your host PC.
Then, power cycle the device by unplugging and replugging the power supply or by pressing the Reset button. The lsusb
command on your host PC should return the following:
$ lsusb -d 2207:330d
Bus 001 Device 028: ID 2207:330d Fuzhou Rockchip Electronics Company
Now, put the BOOT SW slider back into the Normal Boot mode.
7.2.3 Flash the eMMC
Warning: The BOOT SW slider must be back in Normal Boot mode, otherwise the eMMC is inaccessible and stays empty.
You will see rkdeveloptool making improbably quick write progress in this case.
To write the image file path stored in the variable SDCARD_IMG to the on-board eMMC, run:
cd $RKDEVELOPTOOL_DIR
sudo ./rkdeveloptool db tools/rk_tools/px30_loader_v*.bin && sleep 1
sudo ./rkdeveloptool wl 0 $SDCARD_IMG
sudo ./rkdeveloptool rd
This step should take about 1 minute for the Debian image.
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