Chosen Solution
how to I open the phone to access the battery?
cathyllikens. take a look at thise teardown. the first couple of steps show and explain how to do that.
It’s a very easy process you have to have a heat gun and you have to be very careful not to burn it up in the process while heating the sticky tape that’s holding the back of it on! Use a guitar pick bike tool to work the edges around until the back glass starts lifting off