My BlueSolar MPPT 75/50 (v1.12) has been working for many years, I recently connect to my laptop and VictronConnect, it detected a new firmware v1.39 and I have to upgrade to continue using VictronConnect.
I upgraded the firmware but now charging staoped and there is a error on Victron software "#116 Lost Calibration Data" its not working anymore. Bulk and Absorption LED flashing blue simultaniously.
I down loaded v1.43, upgraded but still same issue.
Can anyone help revert back to the original firmware v1.12 please, my device is 6 years old so cant send back to dealer.
Any help will be appreciatded.