How to clean the SIM card of mobile phone?

SIM card of mobile phone can store contacts, short messages and multimedia messages. The memory of SIM card is very small, only a few hundred kb. When it is full, it will prompt that the memory is full.

1.SIM card deletes the memory, that is, deletes the SMS and MMS stored in the card;

2. Enter SMS-Options -sim card information, and then delete the unwanted information;

3. Then set the storage location of SMS in menu-SMS-Options-Settings-Others, and you can choose to store it in your mobile phone first.