Most likely these are natural bar changes that are happening anyway. The glass or the "magic sticker that goes on your battery" just fools you into believing confirmation bias.
There's no cell coverage in my basement. Sometimes you'd get 1 bar, but it will drop soon afterwards.
After putting the phone inside a glass, I have 3 bars. I took it out, held it by the charm (is that how it is called? The little string with a little figure that you can put on most phones today) and coverage dropped to 0.
There's no cell coverage in my basement. Sometimes you'd get 1 bar, but it will drop soon afterwards.
After putting the phone inside a glass, I have 3 bars. I took it out, held it by the charm (is that how it is called? The little string with a little figure that you can put on most phones today) and coverage dropped to 0.
Works for me.