I used an X-acto knife with the flat blade to get it started. I tried using the suction cup - but it’s difficult to get good leverage. Once I got the cover started - I used the metal pry tool (sharpened with a dremel file) and a business card to work it open.

This is definitely the hardest part.

I used a heat gun to soften the glue - worked it around the edges, moving the heat gun quickly. As this is my first attempt, I’m still calibrating on this - but other guides mention getting the back cover hot enough so as it’s just too hot to touch. I also have a temp probe on my multi-meter, and I measured appx. 75 deg. C.

One of the other guides showed using a electronics hot plate set to 105 deg C for 60 sec.

Thanks!! Very good detail. I was able to get the back cover off and replace the battery - the phone is working like a champ!

Didn’t need to heat or use alcohol to get the battery out - just gently kept prying. I used the metal pry tool that came with the battery replacement tool kit. But very careful not to puncture the old battery.