2, mobile phone card, brushing the machine is not the only way, you can use 360 or lbe to clean up the garbage every once in a while, and the mobile phone will produce garbage when running, downloading and installing applications. If there are too many, it will cause the mobile phone to be unsmooth.
3. You can also install software on the sd card. Of course, let's see if your mobile phone supports it. Some software does not support mobile, such as input method, desktop, etc. , you can also move music, videos and map packages to sd.
4. Before running the big software, it will be better to clean up the memory of the mobile phone.
5, mobile phone brush, you can use software brush, such as Baidu brush, brush wizard and so on. However, it is risky to brush the phone. Before brushing the phone, the mobile phone should have the right to back up important information such as phone books and photos in advance.
hope this helps