Only one Control version lock can be downgraded.
Control devices that are programmed with Firmware 03.15.01 can be downgraded to any version.
Here are the versions that you CANNOT downgrade from as of 01/2026
ControlB devices that are programmed with Firmware 04.17.01 cannot be downgraded below 04.11.02
CTE devices that are programmed with Firmware 01.11.03 cannot be downgraded below 01.11.03
GWE devices that are programmed with Firmware 01.68.02 cannot be downgraded below 01.68.02
LE devices that are programmed with Firmware 01.16.02 cannot be downgraded below 01.16.02
LEB devices that are programmed with Firmware 03.18.03 cannot be downgraded below 03.17.01
NDE devices that are programmed with Firmware 02.21.01 cannot be downgraded below 02.19.xx
NDEB devices that are programmed with Firmware 03.18.03 cannot be downgraded below 3.17.01
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