Why you have 4 bars for service but your phone won't work.

Cell phone antenna signal strength bars do not update in real time, nor are they always accurate. This may be hard to believe with all advancements and high technology incorporated in smartphones these days. However, this is true and you can test it to prove this to yourself - This is how:

Put your phone in Field Test Mode, as done regularly by phone repair technicians when testing and troubleshooting phones. Follow easy instructions provided at preceding link and you will be able to check actual signal strength in real-time. This can confirm whether your phone does not work because signal strength is far less than the 3, 4, and even 5 signal bars showing on the phone.

If signal is strength is weak, try these easy fixes. If they don't work, there're cell phone signal boosters available to solve the problem permanently. There're different set of cellular amplifiers for homes, buildings and vehicles. We have made phone booster selection tool shown below, to help you find the right wireless booster. Try it now to see which one we recommend, and how much it costs.

If you're not installation savvy, we have whole home cell booster with installation service. Regardless of your location in USA, we can get an installer at your doorstep, possibly by tomorrow, to have it installed professionally.