The SMS code of mobile phone steam token does not match the expectation.

The reasons and solutions of this situation are as follows:

Check the network connection: network delay or fluctuation may cause the SMS code to be inconsistent with expectations. Try changing the network environment, such as changing from Wi-Fi to mobile network, or wait until the network conditions improve.

Confirmation information code expiration: Steam SMS verification code usually has a certain validity period. If the specified time limit is exceeded, the verification code will be invalid. Please use the verification code as soon as you receive it, so as not to expire.

Re-send the verification code: If you suspect that the previous verification code is wrong or expired, you can try to re-request to send the verification code in the Steam client or mobile application.