Set up was straightforward, but it wouldn’t connect to my phone. Before I called tech center, I did all the usual reboot this and that stuff, to no avail. Talked to tech support. About the only thing I could understand was the 2000 times the “service professional” said “We’re sorry”. They finally told me I had to contact my ISP, because there may be restrictions on my Wi-Fi router. Seems legit, except I have my own router, and there ain’t no restrictions. So I rebooted everything again, and voilà! 4 bars of 4G LTE instead of 1 bar of 5G! Great! Then I left the house for a few hours, and, whah-whah-whah, won’t connect again. My old 3G AT&T Microcell worked flawlessly for a decade, and the app was easy. Walk in the house, it automatically connected. This one, not so much. Every time I open the app, it makes mean completely log in, and the CellBoost Status page just says I have all white lights. I’m going 2-stars instead of 1, because I have this little guy in the back of my brain telling me I did something wrong. Will update if that proves to be the case.

I was very impressed when AT&T first contacted me and offered me a new signal booster to replace a 3G cell signal booster I had purchased years earlier. However, when I opened the new booster’s box to install it there were NO instructions of any kind. I finally found this Cell Booster App and was able to walk through Registering the booster device and “turn it on”. But now, after 24 hours of supposedly working, the booster device’s Power indicator light is blinking (no idea what that means, but it’s probably not good), the Internet indicator light is lit, but none of the other indicator lights (Status, GPS, 4G Lite) are lit. Most importantly, my phone does not suggest the cell booster is doing anything. I’m still connected via WiFi which is how it was connected before the cell booster. And now, after only 24 hours, this worthless AP tells me I haven’t used the App in awhile so it redirected me to the AT&T website where they want to sell me other products or services. And I can’t get back to the Cell Booster App. Bottom line, this is undoubtedly the worst App I ever had on my phone (I’ve already deleted it) and will disconnect the cell booster device later today. Both are worthless.

Within 10 + feet of rebooted unit on 500gb/sec wi-fi and making a speaker phone call, people on the other end of the call complain the connection is poor. Happens every time. When I switch off the iPhone speaker mode to the “normal” ear speaker (not an ear piece) they say the connection is so perfect. NOTE: This happens across iOs updates, over different iPhone models, over the span of two years, and over years of reboots of the AT&T unit. Honestly, after a power failure in the house the AT&T unit loses power and does not auto-start. I can use our registered iPhones ( in most areas) just fine without the unit on. If I walk by the unit and notice it is powered down, I will turn it back on. Our phones might auto-pickup a good signal with our wi-fi and use that to successfully manage calls without the AT&T unit. We need the unit because our residence has stucco on the outside with wire mesh underneath. This creates a faraday cage around our whole house ( except for the roof, doors and windows).

The problem with the app and cell booster is that it provides almost zero information on the setup process. It does not tell you that you will receive an email to confirm you are registered. It does not tell you that it will take another hour or so for the booster to be activated and that you will receive a text to tell you that. Of course if you need a booster and AT&T communicate by text that’s kinda stupid. If you can receive that text, you don’t need the booster. Not clear if you must plug in the gps arial. Just unplugged mine now that I have got the system operating as I do not want an arial chord dragging across the living room towards the closest system. Still seems to be functional. Yes I did talk to AT&T tech service. They were semi helpful and barely spoke English. Lots of indicator lights on the booster but nowhere does it tell you what is a “good” light and what is a problem and what action to take. Disappointed in AT&T.