How to solve the problem that the sound of oppo mobile phone is particularly small?

If the receiver sound is low, please handle it as follows:

1, please check the film and holster of the mobile phone. Blocking the receiver. If so, please remove it and try again.

2. Please check whether the mobile phone is dusty or blocked by foreign objects. You can clean it with a dry soft brush.

3. During the call, use the volume up button to turn up the sound and confirm the volume;

4. Whether the replacement time, place and contact exclusion are caused by network problems;

If the above methods fail to solve your problem, please back up your mobile phone data (mobile phone number, SMS, photos, etc. ) and bring the purchase invoice, warranty card and mobile phone to the nearest OPPO customer service center for testing and processing.