After the winter, I tried for the first time in months to connect my iphone via bluetooth to my MPPT 100/50 and my BMV 712 s. The units were visible in the Victron app, I could connect the MPPT but not the BMV. The app requested a bluetooth connect code which should be shown om my BMV unit. Nothing was shown there. I punched my PIN in, but that did not help. Restarted my phone, eliminated the unit from the list and tried the entire process again with the same result. I then ignored the app and used the unit manually, which worked ok. Any Ideas how to solve the bluetooth problem? Should I disconnect the power from the unit ?