The new applicator tip doesn't need to be cut as indicated in the instructions. Instead, use a pin (one is provided in the battery replacement kit multi-tool handle) to puncture the tip, not forgetting to loosen the bottle cap to equalize pressure.

Measure where the cable/connector is from the edge and be sure to reattach it at this same location. Don’t make the mistake I did and put everything back together, only to find the connector doesn’t exactly line up with the socket on the logic board. There’s not that much ‘wiggle’ room and you’d be better off not forcing it. I had to take everything back apart and start over. :-(