question

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Hi. I created an account and downloaded the two .xup files. How do I import them into the charge controllers? In doing research, people say Android does not work. Thank you.

I am having exactly the same issue after uploading V3.15 have rolled back to V3.13 but still persist except fist thing in morning. Has been trouble free for 2 years now its generating 20W from a 6.5 kWp system with 5 Smart solar charge controllers. most bizarre but vagualy reasurring its not just me

photo of one controller

Hi @gbradleyviper,

My system is a bit different to yours, I've just got two SmartSolar MPPTs and a smart shunt. Just using Bluetooth VE.Smart networking. (I have a 150/70 and a 100/20).

Since the latest update, I'm having troubles with controllers being out of sync, in my case one switches to float like it should, and the other remains in absorption. Taking them off/on the network seems to help for the next day, but after that, they misbehave again.

Hi @gbradleyviper ,

This sounds very similar to a problem that I am having with a 150/70 and a 100/20 MPPT, where one charger switches to float and the other remains in absorption.

My problems too followed updates to controller, Bluetooth, controller. From this point forward synchronisation of MPPT controllers has been unreliable, removing and re-adding sometimes fixes it for a day.

Attempts to downgrade the firmware via the Android app doesn't seem to work, I can't see the firmware files once they are imported.

@Thiemo van Engelen (Victron Energy staff) , I think there might be a problem with MPPT synchronisation in the last update to the internal bluetooth dongle. I have a post already https://community.victronenergy.com/questions/284880/vesmart-syncronised-charging-not-working-tail-curr.html which explains the particulars of my scenario, but its looking like the same issue @gbradleyviper is having.

Sorry I did not answer sooner. I am having inconsistent problems. I thought it was just the CAN MPPT's but yesterday it went to a non CAN. I have a total of 4 MPPT's. 2 CAN's and 2 not CAN's. On a daily basis, I was leaving the network and joining the network of the 2 CAN's. Now it goes to the non CAN's. So, on a daily basis I have to leave the network and join the network for all 4 MPPT's. This is ridiculous. Victron makes it impossible to go back to a previous firmware. They covet their distributor's but not the people who buy their equipment. It's just code. Victron add the code in Victron Connect so anyone can downgrade firmware. I am your customer at the bottom end. I can't afford to have someone come out here and do it. I can't afford the Cerbo GX and all that is required in the aftermath of the installation. I all ready have $30,000 into this archaic technology. I am not spending anymore...

If you have Android and are having problems associating the firmware files with VictronConnect, go to Google Play Store and download "Total Commander". Total Commander can associate the files to VictronConnect. I just did it and was able to downgrade both the charge controller firmware and the Bluetooth firmware. I have been in touch with tier 3 support rep at Victron and both are recommended by Victron to downgrade being that both firmware are tied closely to each other for VE.Smart networking and Bluetooth interface.

Hi All,

There was indeed a bug -

We have just released a new firmware version 3.16 for the MPPTs to resolve this issue; https://professional.victronenergy.com/news/detail/262/