The small hole on the charging side of opporeno6 is penetrated by a syringe.

The hole next to the charging interface of the mobile phone is the main MIC (microphone/microphone) of the mobile phone. You can call to see if there is any problem. If it doesn't affect the use, there is no problem. If you are not at ease, you can go to the customer service center for testing.

You can check the address, business hours and telephone number of OPPO Customer Service Center in the following ways.

1. enter OPPO official website and select "service >"; Self-service > outlets query and reservation ",you can also directly click on the service outlets for query.

2. Open the "OPPO Community" APP and select "Customer Service >" on the "My" page; Consult your service center.

3. If it is inconvenient for you to go to the OPPO Customer Service Center, or there is no service center nearby, we will provide you with two-way postage-free maintenance service to deal with product problems.

4.ColorOS 12 and above: you can go to phone settings > about this machine > instructions for use > after-sales service > customer service center to inquire about the relevant information of OPPO customer service center you need.

Tips:

Before you go to the OPPO customer service center, I suggest you call in advance to inquire about spare parts inventory. In order to avoid running empty. If no one answers the phone, the line may be busy. It is suggested to call again later or contact human customer service for handling.