phone restricted to one carrier
何ですか carrier lock?
A software restriction that prevents a phone from using SIMs (physical or eSIM) from carriers other than the one it was originally sold by.
どうやって carrier lock travel.toの問題?
Common on phones financed through US carriers (Verizon, AT&T, T-Mobile, EE, Vodafone UK). The eSIM hardware works, but the phone refuses foreign profiles. Most carriers unlock automatically after 60–90 days of paid bills; you can also request an unlock from their support.
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