It’s usually recommended to transfer your data from your Android device to your new iPhone before inserting the SIM card. This is because the transfer process requires you to connect both devices to a computer and run the data transfer software, which may not work properly if the SIM card is already inserted.
Here are the general steps to transfer data from Android to iPhone:
Back up your Android device:
Back up your Android device using Google Backup or a third-party backup tool.
Connect your iPhone to your computer:
Use a Lightning-to-USB cable to connect your iPhone to your computer.
Run the data transfer software:
Open the iPhone’s data transfer software (either iTunes or Finder on a Mac, or the Windows Phone Companion on a PC) and follow the on-screen instructions to transfer your data.
Set up your iPhone:
Once the transfer is complete, disconnect your iPhone from the computer and follow the on-screen instructions to set up your new iPhone.
Insert your SIM card:
Once your iPhone is set up, insert your SIM card and activate it with your carrier.
By following these steps, you can ensure a smooth data transfer process and avoid any potential issues that may arise from inserting the SIM card before the transfer.