Hi bucaust
There isn’t an upgrade vrom 5 to 6. You have to optain a new Easy-Soft. Error exceptet, you will be provided which an 6.11 which you can upgrade to 6.20.
There are two possibilitys:
Easy-Soft-Basic usable for 400 / 500 / 600 / 700
Easy-Soft-Pro usable for 400 / 500 / 600 / 700 / 800 / MFD
With kind regards
Hermann