PICO-IMX8M TechNexion Software Loader
Recover to Factory Settings: PICO-IMX8M
Connect debug console, power, and data cables to the baseboard
Yellow box: debug console cable
Red box: power cable (Note: some boards are powered using USB Type-C cable)
Blue box: data link cable
Use UUU (mfgtool) to write the rescue loader image to eMMC on SOM
Set the boot jumpers to Serial Download Mode
First, you need to set the boot jumpers on your baseboard so that the board is booting into Serial Download Mode.
Download UUU (mfgtool)
Download the UUU tool from our website:
Unzip the package
After you download it, you will need to unzip the package:
$ unzip imx-mfg-uuu-tool_20200629.zip
If you are using a Linux-based host, by default files unpacked using unzip are not executable. You may need to set the execute flag on the ‘uuu’ binary in order to execute it (run it).
$ cd imx-mfg-uuu-tool $ chmod +x uuu/linux64/uuu
Download a default TechNexion Software Loader image for your board
The following table lists the URLs based on the SOM and baseboard you are using. Please make sure to correctly identify the board you have.
ftp://download.technexion.net/factory_default_reset/pico-imx8mq/pi-dsi720x1280/rescue.xz
Unpack the rescue loader binary image
After download, you’ll need to unpack the rescue loader binary from the “xz” archive. This results in a file named “rescue” in the current directory, and the archive file (rescue.xz) is deleted.
$ unxz rescue.xz
- Note that if you directly write the archive file (“rescue.xz”), the process may appear to complete successfully, but in fact this is quite incorrect and the board will not boot. ‘uuu’ is smart enough to look into .bz2 archives, but not .xz archives.
Write the rescue loader image to EMMC
This assumes that you are in imx-mfg-uuu-tool directory.
For Linux Platforms:
sudo ./uuu/linux64/uuu -b emmc_img imx8mq/pico-imx8mq-flash.bin
For additional information, please see the article: Using 'uuu' to flash e.MMC on PICO-IMX8M
Set the boot jumpers back to boot from eMMC and reboot
You should be presented with the TechNexion Software Loader UI.
