Take a look at 3rd pic in step #13. Letting U know that this is basically what Joop Roos was trying to say. I tried it and it works very well, with one caveat: as U continue to work on your phone, it may move around a bit. Mine did, and after new battery was connected I moved phone around enough to accidentally press the button on top and it booted while the screen was still rubber banded to the box. I removed rubber bands and waited till I could touch “cancel” then pressed and held top button till the “slide to power off” thing showed up on the screen and then did so. After completion, everything was good with no problems. I think I was lucky. Please be mindful if U use this method of not disconnecting these cables in top right area.