I bought and installed 2 x 100-30 Smartsolar mppt controllers around 8 months ago. I could see both in the V Connect app and changed the pins and names on both. All good until around 1 month ago one of them was no longer visible in the app. Having consulted this website I disconnected the subject controller from the panel and batteries and waited around 15 minutes. Reconnected and no change. I then purchased a VE Direct cable and connected to my laptop. The controller was visible but had lost the unique name I had assigned to it. It seemed to be charging correctly and was pretty much mirroring what the other one was doing. I went to the Product Info section but it was just a cropped version of what I could see from the other controller – specifically the BT on/off toggle was missing as was the Smartsolar Bluetooth Interface section was also missing. When this problem arose both controllers were running firmware V1.59 and I thought if I waited for an update the problem might resolve itself. Today I saw V1.61 was available and I updated both. No change on either. One has full BT functionality and the BT settings are not visible on the other.
If anyone can offer help I’d be very grateful.