This tutorial is applicable to TCL TV L40F3301B. For other models of TCL TV, please refer to this tutorial. [Installation process] 1 Download the sofa butler installation file to U disk / SD card → 2U disk connection TCL TV L40F3301B → 3 Open the installation file through "Software Recovery" → 4 Installation is successful ã€Steps】 1. Baidu search for "sofa manager" into the sofa network, download the sofa butler package; or directly click the link (http://app.shafa.com/shafa.apk) to download the sofa butler package. Copy the downloaded apk installation package to the U disk. 2. Create a new folder in the U disk or SD card and name it "TVManager". In this folder, create a subfolder named "backup" and put the downloaded sofa butler apk into the backup (if you use the TV Existing SD card, you can directly find the backup folder). 3. Find a TV Guardian or TV Steward, open up and you will find there is a software management. 4. Click Software Management to enter Software Recovery. 5. Find the sofa butler, click "Install" or "Resume", after a few seconds will prompt the installation is complete and then exit, you can find the just installed sofa housekeeper in the "application" page or "all applications". Open the show sofa butler interface, indicating that the TCL TV L40F3301B has correctly installed the sofa butler, you can download any TV application you want in the sofa butler. If you still cannot read the USB flash drive, you are advised to format the USB flash drive in FAT32 format first (if there are other contents in the USB flash drive, export it and format it first) or try another U disk. 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. Watching on-demand videos on smart TVs, we recommend using TV cats; watching live TV broadcasts, recommend HDP live streaming; more interesting content, please use Tencent video TV, TV, smart TVs and boxes, and more exciting content. Sofa net.