Hi , My SINOTEC STL-43E390M ONLY SHOW A CIRCLE RUNNING, I CAN ONLY SWITCH OFF AT WALL, I HAVE DISCONECTED ALL INPUTS STILL DO THE SAME

Question edited for clarity.

There is a rather 'round about' way of doing it and it starts with your computer!

Installing Apps using APK Installer on my Sinotec TV Home screen

• Open your browser on your computer, find the APK file you want to download, and select it.
• Once the App is downloaded, open Downloads, right-click on the APK file, then save to USB or external storage device.
• To install this APK from your storage device to the TV, plug the USB into the TV.
• On your HOME screen, go to APK installer, and select the APP you would like to install
• The app will begin installing on your device.
• After the application has successfully been installed the user can run the app with no issues.
• Please Note: Only selected smart models have the "Install APK" function.

https://www.sinotec.co.za/support/faqs/

Specs for your television says it comes with

• Netflix
• YouTube
• Twitter
• Facebook
• Mirashare
• Digital Dvb-T2
• Child Lock

Sinotec 58" UHD Android TV

Sinotec https://www.sinotec.co.za > product > sinotec-58-uhd-...
Open Browser: Yes; Prime Video: Yes; Netflix: Yes; DSTV Now: Yes; Showmax: Yes ... STL-58G50UM. Sinotec 58? UHD NETFLIX LED TV. Resolution: 3840 x 2160. View ...

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It is a cheap and nasty brand from South Africa and made in China

https://www.google.com/search?q=Sinotec+STL+19KC72+factory+reset

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If you are getting sound from your Sinotec STL 43-E TV but no picture when you connect an HDMI cable, it's possible that the issue may be with the HDMI port itself or the cable being used. Here are a few things you can try:

1. Check the HDMI cable - Try using a different HDMI cable to connect your devices. It's possible that the cable you are using is faulty or damaged.

2. Test the HDMI port - Connect a different device, such as a DVD player or game console, to the HDMI port on your TV. If there is still no picture, the HDMI port may be damaged and may require service or repair.

3. Reboot the TV and devices - Turn off the TV and the device you are trying to connect, unplug them from the wall, wait for a few seconds, and then plug them back in and restart them.

4. Update firmware - Check whether there is a firmware update available for your TV and update it to the latest version available.

If none of these steps solve the problem, it may be necessary to take your Sinotec STL 43-E TV to a licensed technician for further inspection and repair.

hi baby *****

I have a sinotec STD-55D2000 Led TV
I switched it off before I sleep and in the morning I tried to switch on
The TV only sawing the blue light for power but not going on
What must I do?

hi a few months ago half of my picture just went slightly darker than the top half. this morning. the whole picture went dark but sound still there nd a very faint pic almost black tho. what could be the problem with my 43 inch model stl-43e 3000g nd were in Cape town SA can i buy the parrs i need to fix it. seems like the power board could be faulty

Check the video
How to Connect Soundbar to TV audio
If you wish to get some details; check the site linked here. Pull up older posts. http://electro-medical.blogspot.com/

Buy a universal remote.......can be used on any tv after setup