MyWebTech Technical Notification #142 - Important Update for Lyric Security System Installations - 4/6/2026

Technical

Notification

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4/
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/2026


MyWebTech
Technical Notification #142

Technical Updates Directly
Subject:
Important Update for Lyric® Security System Install
ations
Product
LCP300-L, LCP300-LC, LCP500-L, LCP500-L24, LCP500-L
BR,
LCP500-LBR-Z3, LCP500-LBR-Z5, LCP500-LC
April

6,

2026
This Technical Notification supersedes Technical No
tification #140
Dear Valued Customer,

We are writing to inform you of upcoming changes th
at will impact Lyric Security Systems beginning Apr
il
15, 2026.
The legacy authentication process used by Lyric pan
els to connect to AlarmNet™

360 (AN360) systems is
expiring. As a result, certain configuration and man
agement capabilities will no longer be supported
after this date.

What Will No Longer Work After April 15, 2026
The ability to sync panel related settings directly
from AN360 to the Lyric panel “Over the Air” (e.g.
over
Wi-Fi or Cellular - LTE) will no longer be availabl
e. This includes the following data points:
Adding new Lyric systems / creating new accounts fo
r Lyric panels in AN360 No longer available
Over-the-air editing, adding or enrolling sensors
N
o longer available from AN360
Over-the-air syncing of panel configuration changes

No longer available from AN360
Over-the-air modifications to system settings
No l
onger available from AN360
Application of dealer branding
No longer available
Over-the-air firmware updates
No longer available from AN360
Local Programming Lockout feature
No longer available

What Will Continue to Work After April 15, 2026

Alarm Reporting and End User Experience:
All active Lyric systems will continue to operate n
ormally, including:
Core System Functionality – including arm/disarm ca
pabilities and user code
management
Continue to operate as it does
today
Connected services:
• Total Connect services
• Alarm reporting
• Two-Way voice
Continue to operate as it does
today, without interruption
Updating of Communicator and Panel Settings:
Making Updates to Communicator Settings:
•

Communicator based over the air commands will still
work as before for Communicator
configuration. Technical

Notification

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4/
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TC2 Configuration
AN360 (works as before)
Comm Path
AN360 (works as before)
City-CS-SUB
AN360 (works as before)
Owner Ship Changes / Changing of Central Stations
A
N360 (works as before)
Main Security / TC2 Package upgrade or downgrades
AN360 (works as before)

Making Updates to Panel Settings:
Updates to Panel and certain package information wi
ll continue to be supported via USB* or local panel

programming:
Partition Changes
USB* or local panel programming
System Changes
USB* or local panel programming
Reporter Changes
USB* or local panel programming
Two Way Voice Activation/Deactivation
USB* only – ex
cluding LCP300 series
Home Kit Activation/Deactivation
USB* only – exclud
ing LCP300 series
Lyric Lock Activation/Deactivation
USB* only – excl
uding LCP300 series
Firmware upgrade/downgrade
USB* only – excluding LC
P300 series

*Changes made via USB will wipeout changes made via
local programming. This excludes LCP300 series (LC
P300-L and LCP300-LC)
models which are not equipped with a USB port.

Special Considerations:
For a panel that has Lyric lock enabled, the genera
ted validation code will continue to be generated o
n
AN360 user interface.
Lyric lock - Generation of validation code
AN360 (w
orks as before)

What Actions Will Be Taken on Lyric Systems the Wee
k of April 6, 2026
To ensure Lyric Systems remain maintainable after t
he cut
‑
off date, two automatic actions will be
performed to support future serviceability. These m
ay affect the Lyric systems you manage as a Dealer.

1.

Local Programming Lockout

Local Programming Lockout feature will no longer wo
rk after the cut-off date. Consequently,
AN360
will automatically disable Local Programming Lockou
t feature for all panels the week of April 6,
2026
.
2.

Lyric Lock

Lyric Lock feature will continue to work after the
cut-off date; however, it will no longer be possibl
e
to deactivate it through AN360. Therefore,
AN360 will automatically disable the Lyric Lock fea
ture
for all panels the week of April 6, 2026
.
If you need to re-enable the Lyric Lock feature on
Lyric LCP500 series panels, you will be required to

do so manually via USB.
Due to the lack of a USB port, it will not be possi
ble to re-enable Lyric Lock feature on Lyric LCP300

series panels.



Technical

Notification

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4/
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/2026


What

You

Need

to

Do
No action is required for existing and active Lyric
systems to continue operating. This communication
is
intended to help you plan for future installations
and system management needs.

If you have technical questions, please contact the
Resideo Technical Support Team at 1-800-645-7492.

If you would like to discuss upgrade options, pleas
e contact your Resideo Sales Representative.


Sincerely,


Product Marketing Team Resideo
Technologies, Inc.