Free account in mainland China cannot pass SMS verification with a valid China Unicom number

nannan

Title: Free account in mainland China cannot pass SMS verification with a valid China Unicom number

Hello TeamViewer Support,

I am using a free TeamViewer account and I am currently in mainland China.

When I try to start an outgoing connection, TeamViewer forces me to complete SMS verification with a mainland China mobile number. However, the verification does not work.

My phone number is a valid physical China Unicom mobile number that I have used for about 20 years. It has never been linked to any TeamViewer account before.

This is also not a new device. I already used the same device and the same TeamViewer account successfully in Japan before. The problem only started after I returned to China.

I have already tried the following:

• using the correct mainland China mobile number
• confirming that it is not a virtual number
• trying again with and without VPN

The system still fails when I enter the number.

Could you please check:

1. whether my account is stuck in the mainland China SMS verification flow
2. whether there is a backend issue with phone number validation
3. whether there is any way to manually verify or reset this requirement

Thank you.

Noor Fatima

“Looks like this might be a region-specific verification issue or a backend SMS routing problem with mainland China numbers. Since your number is valid and previously used device/account works elsewhere, it could be worth contacting support to check if your account is stuck in the China SMS verification flow or if manual reset/whitelisting is needed.”