Summary:
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Thousands of T-Mobile customers experienced service outage with SOS mode appearing on screens.
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Over 140,000 people reported no signal, impacting major cities and prepaid brands riding on T-Mobile’s network.
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T-Mobile remained silent for hours as complaints flooded X and Reddit; service slowly began returning around 6 p.m. ET.
Thousands of T-Mobile customers lost service Monday afternoon, and a lot of them found out the same way. The signal bars vanished. In their place, one small word appeared at the top of the screen. SOS.
Downdetector data shows the problems started around 4 p.m. ET, then climbed fast. More than 64,000 people had reported an outage by 5:15 p.m. ET, with most flagging no signal at all. Reports kept stacking up from there, eventually passing 140,000.
Customers reported trouble in New York, Los Angeles, Chicago, Houston, Denver, Atlanta and across Texas, Florida and the Pacific Northwest. Prepaid brands that ride on T-Mobile’s network, including Mint Mobile and Boost Mobile, saw problems too.
T-Mobile stayed quiet for hours while X and Reddit filled up with complaints. One Reddit thread cleared 5,500 comments before the company said anything at all. When a statement finally landed on X shortly before 7 p.m. ET, it acknowledged “technical challenges impacting some customers” without explaining what broke.
So what is SOS mode, exactly?
Your phone isn’t broken. That indicator means your device can’t reach your carrier’s network, so it falls back to whatever tower is available for emergencies only. You can still call 911. You can’t call your mom, send a text or pull up maps. iPhone users noticed it first because Apple puts the SOS label right in the status bar, but Android users on T-Mobile lost the same service.
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A confusing wrinkle for anyone watching their screen. Some phones showed full bars next to the SOS indicator, which looks like everything is fine when nothing is.
Service began returning for some customers around 6 p.m. ET, though others said they were still cut off. If you’re still stuck, Wi-Fi calling is your best workaround. Turn it on in your phone settings and you can make and receive calls over a wireless network while the cell side sorts itself out.
This story is developing.
