1. Uninstall unnecessary software. (Home Settings Application Selector Uninstall).

2. Use assistant software to clean up garbage, plug-ins and software caches. For example, download, install and use 360 cleaning master. (360 cleaning master "mobile phone status" found garbage ""one-click cleaning ").

3. Cancel unused desktop gadgets. (Desktop, long press Widget to uninstall).

4. Try not to use applications with large memory such as security guards.

5. Use the keyboard program that comes with the mobile phone, and try not to use another typing application to reduce the memory occupation.