Lora 433-510 convert to 866MHz

Vedor send me chinese version for frequencies 433-510. I live i EU i need 866 band, is there any chance to make it work in EU freq? My board is v3 3.1. Resistor sits on "LF"pad on the top of the board. Is it standa for Low Frequency (LF) 433 and High Frequency (HF) 866MHz?

Almost no chance what so ever - all the RF circuits will be turned for 434

The resistor you refer to is a common way to indicate what the board is built for - life & physics would be so much simpler if we could just move the resistor to change it over!