How does oppo mobile phone eliminate the yellow box when taking pictures?

First slide your finger to the bottom of the screen, and there is a gear icon in the drop-down menu bar. Click to enter the settings page. After entering the settings page, slide the screen down all the time. After sliding, you can find the camera option, and click to go to the next page.

Click the menu button in the lower left corner, and then click the face tab. Click Close.

The yellow box that appears when OPPOR9s takes pictures is the focus box and cannot be removed. What is mobile phone autofocus? Auto-focus, the camera emits an infrared ray (or other rays), determines the distance of the subject according to the reflection of the subject, and then adjusts the lens combination according to the measurement result to realize auto-focus.

Click the switch until the periphery of the switch is green, and then click the switch twice. In the confirmation dialog that appears, click Stop/Close, and then click Stop/Close twice.

See if some photo modes are turned on. Check that the camera settings are correct. If there is no problem, you can reset the camera program and see if it can be solved.