How to set oppor 1 1 when the sound is low?

In the process of using the mobile phone, if the receiver sound is low, you can try the following methods:

_ When talking, the receiver mouth is not aligned with the ear position, adjust it and try again;

_ During the call, use the volume up button to turn up the sound;

_ Check whether the film, leather case, etc. are in good condition. Blocking the receiver; If so, please take it off for observation;

_ 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.

Note: This answer is applicable to all OPPO models.