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iPhone users with iOS 15 (with 5G enabled), you can actually see the status to see what band you're connected to. *3001#12345#*, then go to the triple bar icon, scroll down to
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Proutone - 📞How to test your phone frequency band?🧐 📡Test Methods： For iPhone：Dial *3001#12345#* → Press call button → Click 'Serving Cell Info' → Check 'Freq Band Indicator'. For Android-Method 1：Download 'LTE
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Your iPhone's Hidden Field Test Mode Finally Lets You Bookmark Network Measurements for Easy Reference « iOS & iPhone :: Gadget Hacks
