The mobile phone is out of memory.

Solution: ① Delete the software APP that has not been used for nearly 3 months on the mobile phone and enter the mobile phone housekeeper for simple cleaning operation. After the first wave of operation, you can slide the phone down to select deep cleaning, and click the memory of the mobile APP cache to clean it. This is the second wave of operation. ③ You can download some formatting software apps for processing, such as the Android system to clean up the memory:

1, SD maid (SD maid)

2. Clean power supply