OS Image Flashing on SD-card

To flash an image on a SD-card it is required to have a PC with:

• SD-card slot

• Z-standard decompression tool

1. Download desired OS Image from ESPROS Downloads. Refer to <Product>-vYYYY.MM.DD.img.zst

   Warning

   Ensure the image matches the desired hardware. A missmatch might lead to defects.

2. Decompress image file:

   • Windows:

     • Right-click -> extract all…

   • Linux & MacOs in shell:

     • zstd -d <image-path>
       

3. Insert SD-card into PC

4. Follow instructions on the raspberry pi guide Install using imager

   • Select “Use Custom” in Step 2.2 and select the decompressed image

   • Skip Step 3 completely as the custom OS does not support configuration

5. The SD-card may be inserted into the unpowered raspberry pi

6. Power the raspberry pi. On first boot the image will install packages and reboot by itself. This may take a few minutes.

Important

Do not unpower or have any kind of input during very first boot after flashing or you may put your flashed image in an unstable state!
If this happens re-flash the image.