Please read:
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### Version 1.38.1 and above

When downgrading from version 1.38.1 or above to a version below 1.38.1, all settings are reset to factory settings.
Dat-files created with a version of 1.38.1 or above can't be loaded into devices with a version below 1.38.1.

### Firmware V1.24 or above: When transferring function data to a device using x2-technology, the Technician’s or Expert’s password must be entered for security reasons.

To use version 1.25.3 or above, an intermediate update to 1.22 is necessary first.

### Course of action when updating a C.M.I. to V1.22:

# Updating V1.16 or below to 1.22: Both firmware files (CMI.bin and CMI_FIRMWARE_122.bin) must be transferred to the SD-Card, afterwards the file CMI.bin is to be dragged onto the C.M.I. in the “Data administration” tab.

# The folder “Update” must not contain more than the current firmware files.
# Versions 1.18 and above require only the file CMI_FIRMWARE_122.bin

Please note that updating to version 1.22 makes a downgrade to older version impossible.

### Firmware 1.29.3 and above: Downgrading to a version lower than 1.27 results in a reset to the C.M.I.’s factory settings.