Hello, after upgrading firmware (from 1.23 to 1.29) the only message on the display is "System data ERROR!".
The upgrade process went fine, success was even confirmed on my phone, however since then the only thing I can see on the display of my EV charger is the above error message.
I read through all the threads regarding the problem in this community network, however didn't find any help.
Does anybody have a hint?
Thanks.
