Evoko Liso Firmware update 1.36

Posted 20th Apr

The latest firmware update for Evoko Liso is now available on A+Ks room booking site...

To download the latest version of the firmware please visit the Evoko Liso page on our room booking website.
The download can be found on the 'Documents & Downloads' tab.

Please read the latest release notes before updating. If you have any questions the A+K support team can be reached on 01638 510900 or emailing support@anders-kern.co.uk


Release Notes v1.36

*Don't forget to read  the Installation Notes below the Relese Notes*
This release focuses on compatibility and fixing authentication issues. We also offer separate 32-bit and 64-bit versions and a way to remotely upgrade new devices with older factory images, please see the install notes at the end of this document.


  • Support for Exchange 2010 schema version in addition to Exchange 2010 SP1 and SP2.
  • When sending logs from Evoko Home there is a Zendesk ticket number option.
  • Remote upgrade is now backwards compatible down to Liso firmware v1.21.
  • Added option to remove RFID tag if RFID enrollment option is set to "Admin".
  • Added support for Exchange distribution lists.


  • Sleep/wake logic adjusted so the Liso does not go into sleep mode under certain conditions.
  • Rewrite of Liso reconnect logic so it does not create new connections on each attempt to connect to Evoko Home.
  • Updated proxy library that includes fix for trailing space issue in headers that could cause Evoko Home to crash.
  • Evoko Home will now fetch application version from settings file instead of hard coded value.
  • Changed firmware version comparison logic to work with semver library versioning.


  • Several issues regarding check-in, appearing in certain conditions.
  • UI issues related to among other things the on-screen keyboard and translations.
  • Authentication issues leading to the wrong user being authenticated and access to admin panel being disabled when using RFID.
  • Instant meeting button was displayed on the Liso when there was an ongoing meeting.
  • Sync crashed on Evoko Home when using Microsoft Exchange and meeting organizer field was empty.
  • Using the room finder feature on a Liso to book a meeting in another room would result in an error in some scenarios.
  • Changing Exchange username format was impossible in some circumstances.
  • When a Liso attempted to send data to Evoko Home before mac address was properly read, the device could appear offline in the monitoring tab even though it was online.


Installation notes! v1.36


**Backward compatibility**

We recommend to always run matching version numbers of Evoko Home software and Liso firmware.

If you upgrade from 1.35 you can upgrade Evoko Home first and then upgrade devices.

If you upgrade from 1.34 or earlier veresion some changes in later versions will not be backwards compatible. In this case our recommendation is to first make sure your "API authentication" is set to "Secured" under "Global settings" in Evoko Home version 1.34. Then upgrade all devices to 1.36. When all devices are upgraded to version 1.36 you can go ahead and upgrade Evoko Home to 1.36. For the duration where devices are  on 1.36 and server is on 1.34 they may not sync any meetings between Evoko Home and device.

**64-bit and 32-bit versions**

64-bit installation of Evoko Home and NodeJS will from now on be the default for Evoko Homeon Windows. Previously we have only provided 32-bit versions, so for now we will also release legacy 32-bit version. It is very important that you must use 32-bit NodeJS with 32-bit Evoko Home - and 64-bit NodeJS with 64-bit Evoko Home - otherwise you may get an installation error when trying to complete the initial setup.

For new installations we recommend to use 64-bit versions.

For users that upgrade we recommend moving to 64-bit by:
  1. Stopping and uninstalling the Evoko Home service, 
  2. Uninstall NodeJS,
  3. Install 64-bit NodeJS 4.8.0
  4. Install 64-bit Evoko Home.

If a you for some reason need to stay on 32-bit version you can still use -32-bit installer of Evoko Home and do a normal upgrade.

*Remote upgrade of old factory images*

When connecting a Liso with firmware v1.21 to Evoko Home v1.36 please first ENABLE legacy API authentication from global settings. Otherwise Liso will not be able to reach Evoko Home.

In case legacy API authentication is enabled after Liso is connected to Evoko Home, the Liso will appear on Monitoring page of Evoko Home but upgrade will not be possible. In that case please reboot Liso device.

A Liso with firmware v1.21 that is connected to Evoko Home v1.36 will appear Offline on Monitoring page once per minute, then after few seconds switch to Online again. This is due to compatibility issues between v1.21 and v1.36. This will not break the upgrade process but status notifications will disappear after first occurrence.

Tagged by topic: Room Booking

by John Gorman

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