How do I change the phone number on a Samsung account when a Galaxy Tab keeps failing verification?
Answer
Update the phone number in Samsung account Profile info or Security and privacy settings first, then restart the tablet and sign back into the Samsung account. If the screen shows Can’t verify, fix the number and verification method before retrying registration on the Tab.
Follow these steps
Open Samsung account phone settings
On the tablet or at account.samsung.com, sign in and open Profile info or Security and privacy, then find Phone number.
You should see: You see the phone number currently linked to the Samsung account.
Update and verify the new number
Enter the new phone number, request the verification code, and complete verification. If you see Can’t verify, confirm the number format is correct and that the SIM or messaging app can receive codes.
You should see: The new number shows as verified on the Samsung account.
Restart the tablet
Power the Galaxy Tab fully off, wait about 30 seconds, then turn it back on so the Samsung account app reloads with the updated number.
You should see: The tablet starts cleanly without an immediate stuck registration loop.
Sign back into the Samsung account
Open Settings > Accounts and backup > Manage accounts (or Samsung account) and sign in again with the updated account details.
You should see: The Samsung account finishes signing in instead of repeatedly trying to register.
Retry registration only after the number works
If the Tab still prompts to register, choose the account again only after the phone number change is confirmed online. Avoid rapid retries that keep failing verification.
You should see: Registration completes or shows a clear new error you can address.
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Extra tips
What to look for: Can’t verify messages, Samsung account Profile info or Security and privacy phone-number fields, and repeated registration prompts on the tablet.
Before you change anything: Sign in only through the official Samsung account website or Galaxy Settings. Have the new phone number and a way to receive its verification code ready. Note the old number listed on the account before changing it. Never share Samsung account passwords or one-time codes with unexpected callers.