Official Image Flashing Instructions

Step 1: Download balenaEtcher

Visit the official site to download balenaEtcher:
https://etcher.balena.io

Step 2: Flash From URL

1. Open balenaEtcher.
2. Click "Flash from URL".
3. Enter the following URL exactly:
   https://images.ekmmetering.com/latest.img
4. Click OK to confirm.

Step 3: Select the Correct SD Card

1. Etcher will list all available storage devices, including hard drives and SD cards.
2. Select the SD card you want to write the image to (not your internal hard drive).
3. Check the size and label to be sure. For example:
   • ✅ 16GB Generic Storage Device Media
   • ❌ 500GB Samsung SSD (do not flash to this!)

Step 4: Flash the Image

1. Click the “Flash!” button.
2. Wait for the flashing to complete.
3. Once done, safely remove your SD card.

Step 5: Confirm Flash Completed

✅ You're ready to go! You should see Etcher showing it completed.


If you also see a message like this, it's OK. Your computer just can't directly read the completed image because it's not compatible with it, but the gateway will read it fine if Etcher shows complete. You can safely eject the prepared SD card.