There are the following methods for reference: 1, brush machine. Brush the latest compact package of mobile phone. As for how to brush the computer, I suggest searching online and going to the forum of your mobile phone. It was fun. 2. Get ROOT permission, download RE software, enter the system, and delete unnecessary software and applications. How to enter the system and carry out the corresponding operation, more detailed methods can be found in Baidu, so I won't go into details here. 3. Download the Android optimization master and clean up the process in time. 4, do not brush the machine, not ROOT. As long as you delete some applications you don't need at all, and then don't install software that takes up memory and storage, you can achieve the goal of slimming. Pure hands, I hope it works for you,