2 - iPhone 6 devices to replace batteries on. First was a total MESS! Strips broke - immediately! After much gentle prying, plastic cards, blue picks and dental floss, I got the bloody thing out! Second iPhone, I came at it differently. Used my iOpener (heater) to warm the whole phone for about 40 minutes. Peeled up the black “top edge” of the first strip, and it was then I noticed the top side white adhesive is NOT connected to the bottom side. Only the black film makes the connection on the factory battery. I was very gentle with that tab - until I saw the white strip start to appear from under the battery. I then became MUCH more deliberate with my pulling. No going back in (sticky stuff gets stuck on the battery edge) just smooth, steady pulling of the (warm) strip. As about an inch was exposed, I replaced my pulling fingers back near the edge of the battery without allowing any slack. More and more adhesive came out, and each time I repositioned my grasp. Finally - snap, and the strip was gone!

OK - so I had some of the above issue with my first iPhone 6. Blue film did peel off easily, but the “snap back” at the end of the peel caused trouble with the film getting in the strips! When I did the second iPhone, I was ready for it. I had done several “dry fits” of the battery and the strips to prepare my mind for the task. I checked the initial alignment, position of the strips on the front (with the pink film still on, and running perfectly straight and aligned with the battery edges before the flip, and finally to the lower end of the battery to see that the strips do not reach the entire length of the battery. (And, I was ready for the “flip!) On this phone, I performed the strip install exactly as shown in the video, and all went as described. Also, be sure to hold the battery firmly before the drop-in - no second chances! Practice really helped me get it right this time. Oh yeah, and this time I had a “back-up” set of strips, and did not have to use them. YES!