Thank you for this guide. I was successful in getting the new battery installed. I received the Surface Pro 4 from my boss because it was getting retired. It now will gain a second life in the field during our customer estimates. I had two problems. The adhesive torn the copper on the wifi antenna cover in two spots. Instead of replacing it I used silver glue over the torn area and it's working fine. The wifi ribbon I screwed up and bought a replacement, along with a new SSD since I had it opened up. I've built computers since I was 13 in the early 90s. Not a hard fix but a time consuming one.