Help: About SMS! When I changed the chassis yesterday, I couldn't see the memory card. Then I read it, and everything before it was gone.

The default storage location of SMS is the memory of the mobile phone. Did you turn it on after you took out the card? If the phone is turned on, but the phone can't find the memory card, it will be stored in the phone, which means he will read the text messages in the phone memory. At this time, even if you put the memory card in your mobile phone, the mobile phone will not read the short messages in the memory card. You just need to change the storage location of short messages into a memory card in the SMS settings, but I don't know if you have formatted it and if there are any important files in the memory card.