2FA - send text code NOT sent out

I can’t login to smartthings online or via app , due to 2FA verification process , as no text comes thru
any way to change to an authentication app instead

So currently can not access smartthings at all , via app or online browser login , locked out

can you login at https://account.samsung.com

have you contacted ST or Samsung Support?

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same with the above web address , not contacted ST/Samsung support , which is best to contact for this issue ?

I would recommend Samsung Support.

can’t use support site either as also askes to verify via send text code to mobile

Call or use the chat thingie if available.

Try opting in to receive sms again to see if that does anything —> Users with US phone numbers can text YES to 844-647

Are you getting short codes from other providers and just not ST? If not, might be a problem with your mobile provider or account. On both Xfinity and Google Fi I’ve had some periods where they weren’t coming through.

Try using a different number. Use https://anonymsms.com/ for that. They have numbers for SMS verifications, and they’re free, so it’s worth a try.