Okay. Freezer temps a little warm for my liking. Feel the mullion (front/center divider) for excess warmth. If a little warmer than usual, check the condenser coil for any dirt buildup and clean if necessary. Also make sure the condenser fan is running. Check the temperature settings at the control. Make sure both are at the recommended setting, right around 3 for your model. Keep in mind the freezer must be at a minimum of 15 F degrees for the icemaker to even cycle.
Now to the icemaker. The fingers are the prongs on the center ejector rod that are responsible for pushing the cubes from the mold during harvest. As Brother Durham advised, the normal "at rest" position of the fingers, when looking at the icemaker from the front, should be at about the 2 o'clock position. But even with your model, jumping the thermostat should have "tricked" the icemaker into thinking the cubes were fully formed, and initiate a harvest cycle. If you were unable to do this by jumping T (thermostat) to H (heater), then there may be either an open fuse in the icemaker wire harness (located on the black wire), a faulty module, or a shorted mold heater. If any of these components fail, provided the icemaker is getting voltage (which can be checked at the L and N test ports), you would need to replace the icemaker as an assembly.