Honeywell re-releases MR3 firmware update to fix APL bugPosted By Sterling Donnelly
While the recent Honeywell Lyric security system MR3 firmware release brought enhanced functionality and improved performance to the Lyric controller, Honeywell's engineers unearthed a strange occurrence where the Lyric system would send a false APL report after the first system disarm following a system reboot.
Certain conditions had to be met for the false APL alarm to occur. The Lyric Controller had to have a Lyric-3G or Lyric-CDMA cellular communicator installed and activated. Also, the system's arm away, arm stay and disarm reporting had to be disabled (that reporting is on by default and here at Alarm Grid, we always encourage leaving that reporting enabled). As this was a unique anomaly with a very specific and unique configuration that had to be present for it to occur, Honeywell didn't realize the bug until after the MR3 firmware was released. As the firmware causes the panel to reboot once the update was complete, their technical support team quickly heard reports of the phantom APL alarms once the MR3 was released and the engineering team worked quickly to implement a patch fix.
You may have noticed that your Lyric system wasn't allowing you to update to MR3 firmware between when that firmware was released and today. That was because they pulled that firmware back once they uncovered the APL bug.
The new firmware version 01.03.06586.482 which was released today implements the patch fix to the bug and all Lyric controllers should be able to be firmware updated once again.
We encourage all Lyric users (especially those that did get the MR3 firmware update before it was pulled back from Honeywell) to update their system firmware and we've been told Honeywell will start forcing firmware updates to all installed Lyric panels over the coming weeks.