I followed this advice above: “ I noticed that there is an ideal prying point on the opposite side of the battery from the plastic tab (an inch below the volume buttons)”. Worked really well. I did not have to use any other prying point. The battery was fixed with one drop of glues and with tape sticky on both sides.
Re-attaching the battery connector was tricky. Make sure you align the pins well. Otherwise you may bend them and that could be a big problem.
Be very careful with the screws. I almost lost one of the battery ones. No replacement screws in the kit. You can buy them on the web, but that takes time.
I made a series of gentle pulls and the front panel came up without problems. The opening started to appear next to the audio jack, as other people indicated. Then, I used the pry that came with the kit and the panel opened easily.
Although the instructions were very good and useful, the inconsistencies between the video and the steps are concerning. I read all suggestions from users and found them very useful complements. In the end, it was easier than expected. The only problem was that I lost a pentalobe screw (fell on the floor and was never able to find it!!!???), but thank goodness the kit came with a couple extra screws. I added a few more comments on the relevant steps.
As other people already indicated, steps 13 to 16 are not needed and risky. I asked another person to hold the front panel at 70 degrees while changing the battery.