LeTV Super TV X40 Tombnote Edition installs a sofa butler via U disk [Installation process] 1 Download Sofa Butler Installation File → 2U Disk to Connect TV → 3 TV Enter File Management → 4 Read U Disk File → 5 Installation Completed 1. First, go to the sofa butler's official website to download the installation package, download address: http://, V4 and V5 can be; 2. Copy the installation package to the U disk, insert the TV, do not rush to open the file management; 3. Find "Settings" and select "System Settings"; 4. Find "General" and click to enter Find the "safe" menu Open "Unknown source application" option Successfully opened the "Unknown source application" as shown below: 5. Next back to the desktop, find "File Management" Select "Storage Device" Find "External Storage" Open the sofa butler package and follow the prompts to install it. At this point, your LeTV has successfully cracked and installed third-party applications. After the sofa butler application market is installed, various live on-demand softwares can also be downloaded on the sofa. If you still can not read the U disk, it is recommended to format the U disk to FAT32 format (if there are other contents in the U disk, export and then format), or try another U disk. If the installation fails, restart the device and try again by following the steps (may be useful). Watch on-demand video on smart TVs, recommend using a TV cat, watching live TV, and recommending live HDP; more interesting content, please use Tencent video TV version, Youku video TV version, etc.; Fun smart TV and box, more exciting Content is on the sofa butler.