Hello friends,
I have a big problem whith S7 professional V5.4 + SP1 release K5.4.1.0
I have try most key but when start the simatic manager a massage apper :
No valid licence key found ! Install a valid key !
I need your help to know which key i need
thank a lot
PLC_ITA
[?]: help for key for S7 professional v5.4 SP1 with ALM v3
Try to reinstall key
http://plc.net.ru/viewtopic.php?p=10252#10252
Old FastCopy keys not work with ALM3
http://plc.net.ru/viewtopic.php?p=10252#10252
Old FastCopy keys not work with ALM3