How to backup information in port number transfer network

Port number transmission can back up the following information:

After the successful port number transfer, the numbers and short messages in the original SIM card will be cleared, so make corresponding backups according to your own needs before port number transfer.

The address book and SMS in your mobile phone will not be lost, but the address book and SMS in the old SIM card will be emptied because you need to change the card, so you can transfer them to your mobile phone.

If you have backed up your previous mobile phone address book and SMS in the cloud backup of the original network operator, this part of data will exist for a period of time and may be automatically deleted. It is recommended to back up to the cloud disk of the new operator immediately.