Moving your chat history from one phone to another can vary depending on the messaging app you use. Here are some general steps you can follow:

1. Backup the Chat History on Your Old Phone:
  a. Open the messaging app on your old phone.
  b. Navigate to the settings or options menu within the app.
  c. Look for a feature that allows you to back up or export your chat history. This may be labeled as "Chat Backup," "Export Chat," or something similar.
  d. Follow the on-screen instructions to create a backup of your chat history. The backup may be stored locally on your phone or in the cloud, depending on the app.

2. Transfer the Backup to Your New Phone:
  a. Depending on where the backup is stored, you'll need to transfer it to your new phone.
  b. If it's stored locally, you can use methods like transferring files via a USB cable, Bluetooth, or Wi-Fi Direct. Connect both phones and copy the backup file to the new phone's storage.
  c. If the backup is in the cloud, you'll need to log in to your messaging app on the new phone using the same account credentials. The app should prompt you to restore your chat history from the cloud backup.

3. Restore Chat History on Your New Phone:
  a. Once you've transferred the backup to your new phone or logged in to your messaging app with the same account, look for an option to restore chat history.
  b. Follow the on-screen instructions to restore your chat history from the backup.

4. Verify and Test:
  a. After the restoration is complete, open your messaging app on the new phone and verify that your chat history has been successfully transferred.
  b. Send test messages to ensure that you can send and receive messages on the new device.

Please note that the specific steps and options may vary depending on the messaging app you use. Some popular messaging apps like WhatsApp and Telegram have built-in features for chat backups and migrations, making the process relatively straightforward. However, it's essential to consult the official documentation or support resources of your specific messaging app for detailed instructions tailored to that app's functionality.