1, first confirm whether the website supports mobile phone number registration or obtaining verification code.
2. Check whether the mobile phone number is entered correctly again, and get the verification code again if it is not changed.
3. Check whether the mobile phone is in flight mode, without network or search, and select a place with network to receive the verification code. If this situation persists for a long time, it is recommended to replace the SIM card first and notify the operator to report the error. There is something wrong with the mobile phone, please change it.
4. Check whether the website is a SMS verification code or a voice verification code to see if the security software intercepts it, and then get it.
mobile phone
First of all, a brief introduction.
Mobile phone is a communication tool and a portable phone that can be widely used. 1958, Soviet engineer Leonid Kupriyan Norwich invented лк- 1 mobile phone, 1973, American Motorola engineer martin cooper invented the world's first commercial mobile phone. Mobile phones are divided into business mobile phones, video mobile phones, learning mobile phones and elderly mobile phones. So far, it has developed into the 4G era.
Second, the performance classification
Mobile phones are divided into smart phones and non-smart phones.
Generally, the performance of smart phones is better than that of non-smart phones, but non-smart phones are more stable than smart phones. Non-smart phones mostly use the CPU of British ARM company as smart phones. Smartphones, on the other hand, have higher frequency and faster running speed, while non-smart phones have lower frequency and slower running speed.
Third, the type of mobile phone.
Modern mobile phones are divided into different types according to their main functions, including: business mobile phones, video mobile phones, learning mobile phones, elderly mobile phones, children's mobile phones, music mobile phones, game mobile phones, stock trading mobile phones and so on.
Fourth, mobile phone maintenance
As the saying goes, "prevention is better than cure". Here are five examples of mobile phones that are easy to use and bad, all of which are common glitches. If you can do it, you can keep your phone safe.
Avoid one: avoid touching the metal sheet of the SIM card. Any scratch or damage will make the SIM card unreadable.
Avoid 2: Never put the mobile phone in the air outlet of the air conditioner, because the water vapor condensed on the mobile phone will corrode the machine board invisibly.
Avoid three: charging time should be sufficient, usually 8 hours is enough, if overcharged, the battery life will be shortened.
Bogey 4: Remember, unless necessary, please don't pull out the antenna of the mobile phone or play like a toy, so as not to affect the reception.
Bogey 5: In order to prevent the mobile phone from accidentally getting wet, wearing waterproof bags and capsules can play a protective role.