I'm trying to update my 2 shelly plug-s device from 1.9.0 to the latest version, but whatever I do it does not seem to update.

The web UI shows that there is a newer firmware available:

Current version: 20201124-092310/v1.9.0@57ac4ad8

New version: 20210429-101611/v1.10.4-g3f94cd7

I've tried upgrading (and downgrading) like this:

• Updating from the Web UI
• Updating from the Shelly Android app (after connecting to the cloud)
• http://172.17.22.190/ota?url=http:/….10/SHPLG-S.zip
• http://172.17.22.190/ota?url=http:/…9.2/SHPLG-S.zip
• http://172.17.22.190/ota?url=http:/…8.5/SHPLG-S.zip
• http://172.17.22.190/ota?url=http:/…PLG-S_build.zip
• http://172.17.22.190/ota?url=http:/…PLG-S_build.zip

There's no difference when the cloud is enabled or disabled.

This is what /status shows:

"update":{"status":"pending","has_update":true,"new_version":"20210429-101611/v1.10.4-g3f94cd7","old_version":"20201124-092310/v1.9.0@57ac4ad8"}

After starting the update this changes to:

"update":{"status":"updating","has_update":false,"new_version":"20210429-101611/v1.10.4-g3f94cd7","old_version":"20201124-092310/v1.9.0@57ac4ad8"}

After a while the device reboots and comes back with firmware 1.9.0. Also tried to factory default the device before updating, but same result.

Anyone has any idea how to get these device to a newer firmware?

Thanks! Altough it didn't solve my issue the method with that local http server did gave me some clues where to look. The update is started and I see that the shelly tries to download the firmware, but after a few percent the throughput drops dramatically and the download of the new firmware does not finish.

This seems to be a known issue with Shellies and my UniFi access points.

A fix is underway in: https://community.ui.com/releases/UAP-F…4d-d7419513d308

UAP Firmware 5.60.1

Overview

* This release is available on the Release Candidate release channel.

* This release is only for the U6-Lite and U6-LR.

Improvements

[U6] Improve connectivity with IOT devices on 2.4 GHz.

[U6] Improve compatibility with Shelly WiFi clients.