The effective duration of Huawei's SMS.

Hello, generally speaking, information will not disappear unless it is deleted.

Excluding the artificial deletion and reinstallation of the system, the information will remain in the mobile phone all the time, so don't worry. The validity of SMS is permanent when the mobile phone is turned on. The mobile phone is turned off. Take China Mobile as an example. SMS is usually valid for 48 hours. SMS will be stored in the system for 48 hours. If the phone is turned off or stopped, the system will keep the SMS for 48 hours. If you turn on your phone or receive a cell phone signal within 48 hours, the system will push the SMS to your cell phone. If it exceeds 48 hours, it cannot be received after the deadline, and the short message cannot be retrieved.

The time limit is generally within 48 hours after sending a text message. If the other party's mobile phone is in an unacceptable state, such as no signal, power off, etc. , SMS will be saved in the base station and will be sent automatically when your mobile phone can be charged. If it exceeds the time limit, it will be deleted automatically, but there is no sender fee for deletion.