I lost my mobile phone and changed my mobile phone card, but can the original card still be used? Do you still have the SMS and phone information on the original card?

After changing the card, the original card will lose the signal immediately, but if you put the original phone number in the sim card, you can still see the card now;

SMS: If the person who found the phone puts the card on another phone, he can't see any SMS, but you can definitely see the previous SMS in your lost phone;

It is recommended to download a reliable software to back up some important information on your mobile phone, such as phone numbers, text messages, etc.

Short message service (SMS) is a part of unified communication service plan. Users can directly send or receive text or digital information through mobile phones or other telecommunication terminals. The number of characters that users can receive and send short messages at a time is 160 English, numeric characters or 70 Chinese characters.

Short message is a telecommunication service in digital mobile communication system. It is a non-real-time and non-voice data communication service to transmit text or digital short messages through the signaling channel and signaling network of mobile communication system.