Vivo X9 mobile phone can replace the battery. You can take your mobile phone to the local vivo after-sales service center to replace the original battery. The address of vivo after-sales service center can be found in vivo official website-service outlets, and you can choose the province or city where you are located.

Specific operation steps:

1. Search for "vivo official website" with a browser.

2. Slide the mouse to the bottom and click "Service Network Query".

3. Choose the province and city where you live.

You can find the address of the after-sales service center.

Note: You can call first to confirm the after-sales working hours and plan your trip reasonably.