1, you can clean up the background program with one click, re-insert the calling card, and then try another place.

2. Clearing the cache of the mobile phone can clean up the junk files accumulated in the memory, release more memory space and improve the running speed of the mobile phone;

3, Tencent mobile phone housekeeper's garbage cleaning, there is a mobile phone slimming, which can be used to clean up files on the mobile phone, you can use this to clean up junk files.