HEIDENHAIN 1189852-01 Replacing Instructions page 37

Press the "SELECT" soft key
The service pack is copied from the TNC partition to the SYS partition and then installed
Control the newly installed NC software version
HEIDENHAIN recommends deleting the NC software versions from the TNC partition after
successful installation.
Downgrade from 340490-02 / 340491-02 to -01
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