USB 2.0 is a USB interface standard released in 2000 with a theoretical maximum transmission speed of 480Mbps (about 60MB/s). The port has four cables (five cables for MicroUSB and MiniUSB), and the maximum output current is 0.5A. USB 2.0 is currently the most common version of USB port, almost all computers have USB 2.0 port, most USB devices also support USB 2.0. USB 2.0 hub. The device can provide USB high speed or full speed connection on the uplink port. The device also provides USB high-speed, full-speed, or low-speed connections on the downlink port. When the uplink port is connected to an electrical environment that supports only high-speed, full-speed, and low-speed connections, the high-speed, full-speed, and low-speed USB connections on the downlink port are enabled. When the uplink port is connected to an electrical environment that supports only full or low speed connections, the USB high-speed connection on the downlink port is disabled. USB 3.0 Hubs is higher than usb 2.0 in terms of transmitting data.
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Installation process 1 Download the sofa butler installation file to the U disk → 2U disk to connect the TV → 3 Read the installation package through the file management → 4 Complete the installation
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. 
2. Open the settings menu and tick the unknown source. 
3. Connect the U disk with the installation package to Toshiba TV and open the file manager that comes with the TV. 
4. Find the sofa butler installation package through the file manager and select the remote control OK button to install. 
5. After the installation is completed, the installed sofa butler can download any desired TV application. 
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.
Toshiba 55U65EBC how to install third-party application tutorial through U disk
Toshiba 55U65EBC installs a sofa housekeeper through a USB stick, and other Toshiba TV models can also refer to this tutorial. Copy the downloaded apk installation package to the U disk.
If you still cannot read the USB flash drive, you are advised to format the USB flash drive in FAT32 format first (if there is any other content in the USB flash drive, export it and then format it) or try another USB flash drive.
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.