Twitter authentication code is sent to SMS like this.The details will be described later, but you can also receive it with the authentication app instead of SMS.
The two element authentication is a mechanism that enhances security by requesting the input of the authentication code issued each time in addition to the normal ID and password input during login.It is effective in preventing unauthorized login into accounts because identity verification becomes more severe.
To apply a two -factor authentication to the Twitter login, set the steps below.This time, I use the iPhone (iOS) version of the Twitter app, but the same is true for Android smartphones.The "backup code" issued by Twitter at the end of the setting work is an important information that can be used as a substitute when the authentication code cannot be received.Keep it as safe as possible.
2. In the middle of setting the element authentication (procedure above [7]), the authentication code does not reach SMS ...Or, even though the two -element authentication settings are completed, the authentication code does not reach SMS at the next login.Here are five typical causes that can be considered in such a case.
The first possible cause is a mistake in entering the phone number.If you make a mistake in your number at the time of registration, the authentication code will not reach you, and you will receive a "mistake SMS" to the number of other people who have input.
It is possible that the country number was accidentally registered other than "+81 Japan".Once again, check the national number and your mobile phone number carefully and redo the two -factor authentication.
In addition, because of the national number, there is a theory that "0" in the head of "090" and "080" is unnecessary, but when I actually tried it, even if I entered "0" at the beginning of the mobile number.The message "The confirmation code will be sent to +81 90-XXXX-XXXX" is displayed, registered so that you can receive international SMS.
The phone number issuing the authentication code is applicable to the SMS rejection setting.This is one of the reasons why the SMS of the authentication code does not reach.If you use a communication carrier service to refuse annoying SMS or overseas transmission SMS at once, consider the settings or receive the authentication code by means other than SMS.
If you switch to a communication carrier with MNP (number portability), you may not be able to send and receive international SMS.If Twitter sends authentication code on international SMS, this may be the cause.By the way, I have been using MNP three times in the past to transfer communication operators, but SMS from Twitter has arrived without any problems.
2 If there is no cause in the setting of element authentication or your smartphone, Twitter may have problems such as system troubles.Search for "Twitter Trouble" and wait for recovery while collecting information.
There may be problems with communication carriers and Wi-Fi lines.Make sure that communication failures have occurred on the official website of your career.
So how do you deal with the authentication code in SMS?Here are some specific methods.
SMS has an image that arrives immediately, but it may take some time for the other party to send it to your terminal.Don't judge that it doesn't reach in a short time, wait at least 2 minutes.
If you have set up SMS reception, you may not receive SMS from Twitter.If you set the call rejection number individually in the iPhone or Android smartphone message application, it is difficult to find the corresponding number from among them (it is not real), so change to the method to receive with the authentication app described later.recommend.
If you use the SMS refusal setting service of the communication carrier to refuse SMS in bulk, there is a way to temporarily release the settings and try to receive the authentication code from Twitter.The method of canceling differs between docomo, au, and Softbank companies, so please try the link below.
(Correction on July 8, 2021) If the authentication code cannot be reached in the first place and cannot log in, it is impossible to change the telephone number to receive the authentication code.The above explanation of "temporarily use other phone numbers" was incorrect.I apologize and cancel.
There is a possibility that the smartphone terminal itself and the Twitter app may have problems.Restart your device and try to update the Twitter app to the latest version.
If you can't solve the problem even if you try all the solutions and you can't authenticate the two elements at the time of login, contact the Twitter Help Center, "There is a problem when accessing your account."
The next page introduces how to receive the authentication code without using SMS.