iPhone 17 eSIM network issues
why iphone 17, i use esim in china for data roaming, switch back for sg home mobile, need receive sms for OTP, no network at all. what can be done?
iPhone 17, iOS 26
SMS OTPs usually arrive only when your phone is on your home network. When you’re roaming abroad, many carriers either delay or completely block OTP delivery for security or policy reasons, so you may not receive them at all while overseas. If you need OTPs while traveling, check with your carrier for international SMS support or use an alternative verification method like email or an authenticator app.