Cookie preferences
A significant change is due to be implemented in 2025 in the European electricity market: Prices will be set per...
Latest posts
-
Transition to 15-minute pricing in the European electricity marketRead more -
Assumed bug on Aidon meters with HAN-NVE interfaceRead moreWe assume this is a bug on Aidon smart meters with HAN-NVE interface (Norway, Sweden and possibly Finland).
-
Kamstrup Omnipower scale errors on some parameters (known to happen in Sweden and Denmark)Read moreSome grid companies have increased the number of decimals on some parameters, here is how to update your device.
-
Updating device over USB cable, simplified methodRead moreSome users experience difficulties using one of the Over-the-air (OTA) methods for firmware upgrade. We propose a...
-
Kamstrup Omnipower HAN port not workingRead moreHow to cure the Kamstrup Omnipower meter hick-up (meter stops pushing data)
-
Kamstrup Omnipower meters in Sweden: Which configuration should you choose?Read moreSwedish grid companies are moving from "HAN-NVE" configuration to "P1" configuration. Some grid companies allow their...
-
L2 current not available!?Read moreSome users have noticed that the device is no longer reporting current on phase L2.
-
Swedish customers and PostNord as "Tullombud"Read moreSwedish customers receiving our shipments via Postnord are mislead to think they have to pay customs fee and VAT....
-
One-click upgrade is not workingRead moreOne-click firmware upgrade works just fine for most users - but what to do if it fails?
-
Blog categories
Search in blog
One-click upgrade is not working
We made firmware upgrade easy by implementing the one-click solution:
Whenever a new firmware release is available, an indicator is shown on the header bar of the main page:
Just click the red message, and the upgrade is done - quick an easy!
However, this sometimes fails. It is seldom, but it happens.The device is just stuck on this message, and does not finish the upgrade:
There could be several reasons why it fails, but could usually be attributed to delays in the internet connection - or to the main page not being refreshed correctly.
Thy these steps if the device is stuck:
- Refresh the page by pressing F5, and check if the device was after all updated.
- If not, try again. The problem could have been slow access to the download server.
- If repeated attempts fail, proceed to a manual update via USB cable
Manual update via USB cable
- Go to the Github releases page.
- Download the *.bin file. You need to find the *.bin file that is built for the microcontroller used by your device. Using the wrong file will result in a non-working device! (It will be recoverable, but will give you a quite bit of extra work.)
- Most users shall use this file: ams2mqtt-esp32s2-2.2.20.bin
- Old devices with ESP8266 shall use this file: ams2mqtt-esp8266-2.2.20.bin
- Go to the Info-page and press this button:
- Select the downloaded file and wait for the upgrade to finish.
Voilá!
Related posts
-
How do I fix a bricked device?
If you by a mistake uploaded over Wifi a wrong firmware (intended for an other microprocessor), the device will not...Read more -
Home Assistant med Pow-K
The Danish YouTube-channel Kenneths Teknik made an instructive video that shows how to connect a Pow-K to Home...Read more -
Can Pow-U and Pow-K show energy produced from solar panels or wind turbines?
Especially solar panel installations are starting to become common, so we want to monitor power and energy from them!Read more -
How can I read data from my Pow-K / Pow-U when I'm not at home?
Many of us do not like the idea of sending our power consumption data to some cloud service where we do not really...Read more -
Pow-U: Can the external power be connected while Pow-U is connected to the meter?
In some use situations, the Pow-U will have difficulties maintaining its voltage level and will reset frequently (see...Read more
Leave a comment
Comments
Update problem?
By: Niels On 06-Feb-2026After executing a one-click update. last week, my Pow-K rebooted as AMS reader v2.5.5, but the HAN indicator was red, Pow-K did not identify the meter, and data did not flowi anymore. What went wrong, and how can I fix it?
Replied by: Egil Opsahl On 08-Feb-2026
Power supply during one-click upgrade
By: Arild Johnsen On 23-Feb-2024Is power supply via the usb port required during one-click upgrade ?
Replied by: Egil Opsahl On 24-Feb-2024