1, enter the engineering mode, use oppo mobile phone to enter the website inquired by official website, and enter the engineering mode. After entering, you can see the functions such as background setting, single board information query, network information query, software upgrade, factory setting restoration, power supply, etc. Click Power Supply.
2. It will be recharged after clicking. Only when the charge is kept between 55% and 75% and the battery temperature is lower than 70℃ should the battery be charged, but of course it should not be too low. The battery can be charged at room temperature. After a while, the battery health will return to 65,438+000%.