Chosen Solution
I just had to change my battery on my Moto G4 Plus, and in the process accidentally tore up the black tape that was on the original battery. I thought it wasn’t a big deal, but I’m having second thoughts. It’s a black tape with a silver/metallic underside, and very thin. What kind of tape is it, and is it important?
If you look at the disassembly here… then you will know it is harmless. Motorola Moto G4 Plus Battery Replacement