Disconnect wire from the spring terminalΒΆ
Terminal with wire connected
Insert screwdriver (2.5 x 0.4 to 3.5 x 0.5 mm) at an angle, screwdriver must be at least 15 mm free of insulation at the tip
While erecting the screwdriver, insert it until the stop (requires a little strength) - terminal is now open
Remove wire from the open terminal
Remove the screwdriver
Done