I received my brand new EV charger with display recently. It has connected to VRM and is visible in Cerbo GX. When I try to update the firmware from 1.21 to 1.27, error 1302 appears. In addition: the charger webpages does not offer the option to upload the firmware.
The WIFI signal is pretty strong, the Cerbo has a LAN ethernet connection.
How to solve this?