Desolder the resistor just above the battery location on the pcb

Mine has already been modified. Original placement is highlighted.

Resolder the same resistor to the following through hole locations and solder into place. Conveniently, the resistor leads are long enough to reach these points and not require any extra wires.

Initially I applied solder to 1 through hole and attempted to push the lead through it after reheating with my iron. This proved quite the complication as I couldn't fully remelt the solder to get the lead through. Fearing overheating the resistor I managed to solder the lead in place without going through the pcb. This still works but I advise not

applying solder first.