The GFCI will not protect you from line contact hazards (i.e. a person holding two "hot" wires, a hot and a neutral wire in each hand, or contacting an overhead power line). However, it protects against the most common form of electrical shock hazard, the ground-fault. It also protects against fires, overheating, and destruction of wire insulation. Ground Fault Circuit Interrupter UL Ground Fault Circuit Interrupter UL,Auto-Monitoring Ground Fault Circuit Interrupters,Ground Fault Circuit Interrupter,Outlet Ground Fault Circuit Interrupter Hoojet Electric Appliance Co.,Ltd , https://www.hoojetgfci.com
Steps
1, enter the interface desktop icon "a key direct"; 
5, after the download is complete, enter the application management of a download, find the sofa butler installation files to install; 
If the installation fails, restart the device and try again by following the steps. Still have questions please add the following sofa butler official QQ group.
How to install third-party software through the built-in browser
How to install third-party application tutorials through the built-in browser, Haimi Di M3 can also refer to this tutorial.
Installation process
1 Open a browser in the direct key → 2 Enter shafa in the browser to search → 3 Enter the sofa butler website to download the installation file → 4 to complete the installation
2, find the browser and open;
3, enter () to search
4, after entering the sofa website, click "Download Now"
6, complete the installation
Watch on-demand video on smart TV, recommend using pudding video; Watch live TV, recommend HDP live broadcast; More interesting content, please use Tencent video TV version, TV; Fun smart TV and box, more exciting content in Sofa net.