Why does my iPhone constantly lose its signal?

I have Verizon (6 year customer) and have had my iPhone 4s for 1 year now, however, the past month or so I will be sitting in my house on my phone with 3-4 bars loading a page on the internet or using an app requiring data and I'll just directly go to "no service" (as noted by the small "o" in place of the "3G" icon. Not sure what it is, but my service has been abysmal lately, I've cleared all cache and website data, but nothing seems to be working:/

Its the apple on the back, pull it off

Not sure. Maybe turn off your iphone and turn it back on and see if that helps. Sometimes it does that.

I use the Fresh Network Booster app for my Android. Get a network booster app for your iphone

Watch

Works great!

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