If the headset icon is still displayed in the status bar after the headset is unplugged, it is usually caused by excessive force when the headset is plugged in or unplugged, or it may be caused by water, iron filings and dust exposed from the headset hole.
You can try the following methods:
1, the earphone can be rotated at multiple angles without plugging in for many times;
2. Try to replace the headset;
3. Restart the phone to see if it can be restored;
4. Back up the important information of the mobile phone and restore the factory settings:
If the problem is still unresolved, it is recommended to go to the customer service center for relevant testing.
Innovative technology of oppo mobile phone
OPPO has always attached great importance to technological innovation. By July 20 16, the disclosure of OPPO patent application had entered the TOP 10 list of domestic local applicants. This is the first time that OPPO has entered this list 12.
By September 5th, 20 16, OPPO had publicly applied for 8683 patents. There were 7576 applications for invention patents, of which 87.3% were for invention patents. For OPPO, its patents are more concentrated in the fields of taking pictures, rotating cameras, and VOOC flash charging.
1, camera technology
Dual-core focusing
Dual-core focusing is a focusing technology of OPPO R9s based on Sony IMX398 sensor. "Dual-core" means that the photodiode in a pixel is divided into two, so that the separated photodiodes can receive light independently, and the phase difference formed is the "basis" for driving the motor to focus. When imaging, two independent photodiodes can be output (merged) as a pixel. Dual-core focusing is like seeing things with both eyes, while ordinary PDAF phase focusing only uses left and right eyes to see things. This means that the light input of a single focusing pixel increases by 100%, and the focusing accuracy and speed will also be improved.
Ultra-clear image quality
Ultra-clear image quality refers to a camera technology exclusively developed by OPPO, that is, multi-frame composite oversampling technology is used to synthesize multiple photos with CMOS effective pixel output size into a super-high pixel photo to obtain larger frames and more details.
OPPO Find 7 is the first smart phone equipped with ultra-clear image quality technology, which can output photos with a maximum of 50 million pixels. OPPO N3 has been improved on the basis of Find7, and can output photos up to 64 million pixels. At present, most of OPPO's smartphones, such as R9s and R9s Plus, can be equipped with ultra-clear image quality.
Jizhi beauty
Extreme Beauty is an exclusive software technology based on OPPO mobile phone hardware. When the user takes a selfie with the OPPO mobile phone, the OPPO mobile phone will automatically recognize the user's face, intelligently analyze the corresponding age, and give the corresponding appropriate skin care effect.
The ultimate beauty has been independently developed by OPPO since 20 12, from the first ultimate beauty of OPPO U70 1 to the ultimate beauty of OPPO N3.0; Then to the R9 series of Jimei 4.0, Jimei has updated four versions. OPPO has always insisted on combining the best self-timer hardware with the best self-timer software to lead the trend of mobile phone self-timer.
Electric rotating camera
After OPPO N 1 introduced the rotating camera, OPPO N3 introduced the electric rotating camera again, that is, the "planetary gear three-stage transmission mechanism" was adopted. With the stepping motor, the mobile phone user only needs to touch the screen, open the camera interface and gently slide the screen, and the camera will automatically rotate. Electric rotation has achieved another innovation in mobile phone photography, further leading innovative and interesting new photography experience.
2.VOOC flash charging
VOOC flash charging is a low-voltage fast charging technology developed by OPPO, with 18 patents. Adopting low-voltage and high-current mode can not only ensure the charging speed, but also reduce the heat of adapter and mobile phone when charging. VOOC flash charging is 4 times faster than traditional charging. 3000mAh battery, you can talk for 2 hours after charging for 5 minutes and 75% after charging for 30 minutes.
VOOC flash charging was first used on OPPO Find 7, and then it was carried on OPPO flagship products.
Reference source: Baidu Encyclopedia: oppo mobile phone