VictronConnect fails to connect to Lynx Smart BMS

Hi all,

I am installing a system which includes a Lynx Smart BMS, several batteries and an EasySolar-II GX unit. I am able to connect via Bluetooth with VictronConnect to all of the other components but the app will not connect to the Lynx Smart BMS. When it tries to connect initially with the device powered on, the flashing Bluetooth LED on the Lynx unit changes to solid, the progress bar advances to full, the message changes to ‘Fetching data’ and the background changes to the Smart BMS info page. However, before it fully loads and closes the progress bar dialog, the connection process simply resets to 1% and repeats itself over and over, causing the Bluetooth LED on the Lynx unit to start flashing again until it reaches 20%.

I have tried resetting the PIN and forgetting and re-connecting to the device using the procedure in the troubleshooting guide, uninstalling/reinstalling the app, and pretty much anything else I could think of involving power cycling or resetting things. I’m beginning to suspect it may be a faulty unit but I wanted to check here first in case anyone had any other suggestions or had seen this issue before.

I have created a service report but for some reason this website will not allow me to upload a text document as an attachment to this post, saying that .txt is not in the list of supported file types (?). I’ve therefore uploaded this to Google Drive and copied the link below, hopefully that all works and is shared correctly. Any help is greatly appreciated, thank you very much :slight_smile:

VictronConnect_report_GBrook_BMS_issue.txt

Cheers,
Galen

Hi @GBrook,

Thank you for providing the service report. We do see it failing in the service report, but it is not completely clear why it fails. For this we need some more information, for example the exact software version that is running in the Lynx Smart BMS. Do you have the Lynx Smart BMS connected to the EasySolar-II GX via CAN bus? If so, what is the software version that it reports running on the Lynx Smart BMS?

When it is connected to the Lynx Smart BMS, you can also try to connect the Lynx Smart BMS using remote firmware updates via the VRM website, as we can see from the service report that it is not running the latest firmware.

Kind regards,
Thiemo van Engelen