Two ways: 1. Copy the phone to install it, you can copy it to any directory, you can build one yourself, easy to find. Then on the phone with a file manager (RE manager) or something to find that directory, and then click apk can be installed. 2. With 91 cell phone assistant or pea pod cell phone assistant installation, cell phone connected to the computer, open the cell phone assistant, will be automatically recognized, and then select the program management, add a program, find your apk installer, click on Add to install ~ personally recommend using the cell phone assistant to install, convenient, easy to manage, and do not have to copy the apk to the phone, save space.