We are installing two new mppt150/60 on a new boat. Unit purchased a year ago.
We have two phones on board. A Samsung Note 8 and Samsung Galaxy. Both behave the same with both mppt.
As soon as the update from v2.10 to v2.14 starts.we get error #4 update failed connexions unstable. Tried to reset both units disconnected battery and solar panels no change.
Any suggestion?
