Big LoRa32u4 boards topic

Hi everyone,

i trying to get a bs france Lora32u4 II board to run. Board version is 1.3(!) and it seems to be different than the 1.2.
First of all, i’m not sure which version i got. I want 866Mhz.
On the back there are two white boxes, one saying 866MHz and one 915MHz but there is no mark which one it is.

Even more confusing, after uploading an example Sketch, in the arduino IDE it says: “Port /dev/ttyACM1 Lora32u4 (433MHz)

I followed as far as possibe those instructions: https://www.youtube.com/watch?v=0dfMrWHWmqw but i didn’t solder anything because there is only one solder pad on the back instead of three.

So my question is how can i find out which frequency is used. and second how can i see if the connection to the gateway is working? The next gateway is around 1.5 kilometers away. Is it possible with this board?

Thanks in advance