1. Use Safari browser to open website： https://www.piexgo.com/
2. Install the file→Enter your phone password→【Done】
3. Return to home page, you could see PIEXGO安装助手, open the APP→click【点击安装】
4. Click【安装】→return to home page, wait for the installation of PIEXGO APP.
5. Please keep PIEXGO安装助手 on your phone, so you could click 【重新安装】to re-install the APP when necessary.