What is a Rigid Flex PCB? Rigid-Flex PCB,Rounded Rigid-Flex PCB,Green Rigid-Flex PCB,Complex Rigid-Flex PCB Storm Circuit Technology Ltd , https://www.stormpcb.com
[Installation process]
1 download sofa butler installation file → 2U disk connection box → 3 enter file management → 4 read U disk file → 5 installation is complete
1. First, go to the sofa butler's official website to download the installation package, download address: http://, V4 and V5; 
If the installation fails, restart the device and try again by following the steps (may be useful).
Rigid flex printed circuit boards are boards using a combination of flexible and rigid board technologies in an application. Most rigid flex boards consist of multiple layers of flexible circuit substrates attached to one or more rigid boards externally and/or internally, depending upon the design of the application. The flexible substrates are designed to be in a constant state of flex and are usually formed into the flexed curve during manufacturing or installation.
Rigid flex designs are more challenging than the design of a typical rigid board environment, as these boards are designed in a 3D space, which also offers greater spatial efficiency. By being able to design in three dimensions rigid flex designers can twist, fold and roll the flexible board substrates to achieve their desired shape for the final application's package.
Benefits:
More components in a smaller space
Improved signal quality and integrity
Easy to test
Very reliable in harsh environment
Reduces system costs
Weight reduction
Our expertise – your profit!
The circuit board is no longer thought of as simply something to hold other elements. In fact, it is part of the system and offers a diverse range of options to integrate different functions. We want to support our customers as early on in the development process as possible so that they can get the most out of our wide-ranging expertise. In this way we can succeed in finding the perfect solution for the specific situation whilst keeping an overview of the entire system.
LeTV U4 installs the sofa butler through the U disk. LeTV can refer to this tutorial for other models. Select "Storage Device" Find "External Storage" Open the sofa butler package and follow the prompts to install it. At this point, your LeTV box has successfully cracked the installation of third-party applications, and then you can play it willfully! 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. 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.
2. Copy the installation package to the U disk, insert the box, 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"