Today I tried to change the Software-Vers. 3.2.3 to 3.2.8. for Heishamon for my Panasonic-L-5 kWth-R290.
I got 2 times a mistake FEHLER (7) information after uploading, either I used the MD5-checksum, which I verified with WinMD5free.
What could be the problem ?
Thank you for your assistance.
LG
Karl