TechEngadget1h ago
You don't have to turn off your phone to switch SIM cards (but you
You don't have to turn off your phone to switch SIM cards (but you probably should)
TL;DRYou can swap SIM cards without powering down, but it's safer to turn off your phone first.
Why it matters: Prevents data corruption or dropped calls during the transition between carriers or devices.
Swapping SIM cards isn't something you'll do all the time, but when it does come up, you should do it carefully.
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