Verify the circuit board does not have any current supplied to it prior to performing the next steps. If a current is present, permanent damage to the multimeter is possible!

Connect the black probe to the circuit board rail where one end of the solder bridge was.

Connect the red probe to the circuit board rail where the other end of the solder bridge was.

If the fix is successful, the multimeter should read "OL" on the screen, indicating an open circuit. There should be no beep, which means the rails are no longer connected.

If the fix was unsuccessful, the multimeter will give a numerical readout on the multimeter screen, and beep.