How can we play video from a USB device? Why can we not download more apps???

Its is probably not available for your tv. Chances are it never will.

How do I install Apps on my Sinotec Smart TV?
Installing Apps using APK Installer on my Sinotec TV Home screen
1.Open your browser on your computer, find the APK file you want to download, and select it.
2.Once the App is downloaded, open Downloads, right-click on the APK file, then save to USB or external storage device.
3.To install this APK from your storage device to the TV, plug the USB in to the TV.
4.On your HOME screen, go to APK installer, and select the APP you would like to install
5.The app will begin installing on your device.
6.After the application has successfully been installed the user can run the app with no issues.
7.Please Note: Only selected smart models have the "Install APK" function.

https://www.sinoprima.co.za/faq/

You have a tough one Orlanda, as I would normally point you to xda-developers.com to browse the forums for the necessary steps. Even Googling the device brings up little, other than some paid-program that states that it can root your device (oneclickroot.com). Good luck!

• To play USB media, you must first save your music or images onto a USB thumb drive.
• Remember: The USB thumb drive must be formatted as FAT32.
• Files on the USB thumb drive must end in a supported le extension (.mp3, .jpg, etc).
• • The player is not designed to play media from external hard drives or mp3 players.

To play your USB media:

1. Connect your USB thumb drive to the USB port on the side of theTV.
2. Highlight the Media app and press OK.The Media App launches.
3. Highlight your USB device in the list and press OK.
4. Highlight the type of media you wish to display: Music, Video or Photo. This info can be found in the manual here: http://cdn.vizio.com/documents/downloads/hdtv/E320iA0/UM_E320iA0.pdf

No direct connection possible right now. Perhaps in the future?
To get your video on the iPad you could use a memory card reader, or a wifi memory card. But both are not capable to stream video streams life.
Perhaps Apple, can be moved to bring a connection tool, for video, but there is noting right now.

how to video

Google Play Store 5 1 11 APK Download APKMirror

• Click on this link and download the apk.
• Pass-it on your tablet using your usb cable
• Make sure your have third party software allowed
• Use a file explorer included in your device.
• Search for the file you sent to your tablet.
• Install it and you should be good to go.

Have a nice day !

Google Play Store 5 1 11 APK Download APKMirror

• Click on this link and download the apk (this way you can have play store on your device)
• Pass-it on your tablet using your usb cable
• Make sure your have third party software allowed
• Use a file explorer included in your device.
• Search for the file you sent to your tablet.
• Install it and you should be good to go.

Have a nice day !

Search online for hacks and apps,,also they have a app you can buy or download,,called usb advance,,that makes it where you can do stuff like that,,also find you the ps2 hdd online ,,then buy the thing called hdd laoder,,witch is the best solution for that,,u can then download ps2 games then straight to hdd,,and play them,,download u torrent,,or bit torrent,,thats where u can get hacks,,and any ps2 game for free,,,thanks hope was helpful.