Since the middle of July, my reception on my iPhone 6s has been terrible on my T-Mobile account. But it used to be excellent. T-Mobile modernized a nearby tower during July 2018, but insists that their tower is not the problem. I bought my iPhone new at Verizon in May 2017. So I want to know if the poor reception is due to a bad antenna on my iPhone.
iPhone 6s, iOS 11.4.1, Poor reception/dropped calls on TMO
I am having diagnostics done at my local Apple Store this week. I have already tried reset network settings. I believe one other person in my apartment building has had the same problem. In addition, I have also tried…
1… Using a T-Mobile cell spot signal booster
2… contacting T-Mobile through chat and 611 To write a service ticket to check their nearby tower (they found no issues with their tower despite having told me that it was being “modernized” at the time my reception problems started)
I do notice that early in the morning I get better reception(Though I still only get one or two bars), indicating that I might be getting “deprioritized” during high traffic times. But I have never reached my monthly data limits. But this “better reception” still is not the excellent 4 bar reception I used to get.
You can go to this link Contact Supportand choose the chat option. They can run a diagnostics on your device. Are there others in your area having issues also? Have you tried going to settings>general>reset>reset network settings?
If the problem only manifests in one location, then it is almost certainly the cell site you're connected to.
Now... that said, it may not be a "problem". iPhones sold for Verizon and T-Mobile support different LTE bands. It's entirely possible that T-Mobile is now using an LTE band that is simply not supported by your phone. There is nothing anyone can do about that.
Try turning on airplane mode for 20 seconds and then turning it off to see of that helps.
Thank you regarding the “airplane mode”
How can I tell if my iPhone has A defective Antenna?
