Zhejiang Baishili Battery Technology Service Co,.Ltd. , https://www.bslbatteryservice.com
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. 
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). Still have questions please add the following sofa butler official QQ group.
Tage WE20s how to install third-party applications to watch live
Installation process 1 download the sofa butler installation file to the U disk → 2U disk connection box → 3 into the file manager to find the installation package → 4 installation is complete
2, open Tage WE20s box, the default state prohibits the installation of third-party applications, we need to manually open. Open Tutorial Please Poke → "Terminal WE30 Series can not install third-party software how to do"
3. Connect the U disk containing the sofa butler package to the USB interface of the Tektronix WE20s box and open the local browser.
4. Select U disk in the local browser, which is USB_DISK3 in the figure.
5, find the sofa butler apk installation package in the U disk, other application methods are similar. (Note that if you haven't enabled "Allow installation of third-party applications" before, similar prompts will pop up at this time. Please set up to allow installation of third-party applications.)
6, the installation is complete, after only need to download any TV version of the application through the sofa butler, very convenient.
Watch videos on smart TVs and recommend using pudding videos. Fun smart TV (and box), exciting content in the sofa network.