ID FAQ116512
Why is it not possible to downgrade firmware on my new AXIS M1134/M1135/M1137 camera?
Support for new hardware has been added in service release 10.3.0.1.
The products with the new MCU type will have a new HWID (HardwareID) and these units can't be downgraded to a firmware that is older than the service release 10.3.0.1 or LTS track 9.80.3.1 since the older firmware does not have support for this type of MCU.
Products using the old hardware, see old HWID, will still be able to downgrade to earlier releases than 10.3.0.1 firmware.
Here is the list of affected products and the HWID for new and old units:
| Product | Old HWID | New HWID |
| AXIS M1134 | 7A7.2 | 924.2 |
| AXIS M1135/-E | 7A7 | 924 |
| AXIS M1137/-E | 7A8 | 925 |
You can check the "HardwareID" on your product in the server report.
This article applies to the following products: AXIS M1135, AXIS M1135-E, AXIS M1137, AXIS M1137-E, AXIS M1134