These documents describe how to upgrade the firmware of the Summa SummaCut R(L) series roll cutters.
For cutters with a firmware version before revision 025, Summa Cutter Control 4 needs to be used for the firmware upgrade.
For cutters with a firmware version from revision 25 on, Summa Cutter Control 5 can be used.
Do not upgrade the firmware unless the machine faces issues or incompatibilities from some software.
Powering down the unit too early will cause damage to the machine.