You can set ringtones on your iPhone through AISI Assistant. The specific operations are as follows:

1. First, download the AISI Assistant app on your phone, and then open "AISI Assistant" "Software, click to open the app.

2. In the second step, after clicking in, click the "Discover" button at the bottom of the page, and find "Ringtones" on the "Discover" page.

3. Step 3. In the "Ringtones" page, you can select the ringtones in "Recommended", you can also select "My Ringtones" at the bottom of the page or click the magnifying glass to search. .

4. Step 4. After selecting your favorite ringtone, click the "Download" button to download the song.

5. Step 5: After the download is completed, a window will pop up on the page, click "Sync Now".

6. Step 6: After completing the synchronization, launch Aisi Assistant and click the "Settings" button.

7. In the seventh step, on the "Settings" page, click the "Sound" function.

8. Step 8. In the "Sound" page, find "Telephone Ringtone" and click it.

9. Step 9: Finally, in the phone ringtones, find the ringtone you downloaded. Here we take the "Ono Lisa" ringtone as an example. After clicking it, there will be a small check mark in front of it, which means the setting is complete.