Nitro AN515-58 DTS:X ULTRA dosen't working

DTS X Ultra Microsoft Download https://apps.microsoft.com/detail/9N0H1M8J1308?hl=en-us&gl=US
Per Member GeeKnight: I found the solution for this problem.
Problem:

1. DTS:X Ultra shows "Please connect external speakers to use DTS audio controls"
3. DTS:X Ultra shows "Please connect a Headphone to use DTS audio controls"
4. DtsApo4Service service in services.msc is not running despite force start.

Possible cause (NOT SOLUTION):
Updated DTS APO4x Service Component, DTS Audio Effect Component, DTS Audio Hardware Support Application, Realtek Audio Effect Component, Realtek Audio Universal Service, Realtek Hardware Support Application using Driver Easy.

Solution 1:

1. Uninstall all DTS related (DTS Sound Unbound & DTS: X Ultra) using RevoUninstaller
   https://www.revouninstaller.com/
2. Delete all DTS registry and left over files using the RevoUninstaller
3. Restart your PC / Laptop
4. Reinstall latest DTS driver from Acer site
   https://www.acer.com/ac/en/US/content/support-product/8376?b=1
   (Search your own model)
   XPERI DTS Utility (sound) - DTS Sound Unbound
   XPERI DTS Utility (DTS Console) - DTS: X Ultra

If it still doesn't work, try these:

1. Reinstall Realtek Audio driver using the old version (Which can be found at Acer Site as well)
   https://www.acer.com/ac/en/US/content/support-product/8376?b=1
2. Redo Solution 1 above.

Before I was able to use DTS:X Ultra again, I did an optional Update in the Windows Setting
(Windows > Update & Security > View Optional Update > Check Insyde Firmware update > Update)

If you check for Windows 10 Update, it might update the DTS and Realtek version, refrain from updating them to prevent from possible error.

Per Member oziozi12
It's all about outdated Dtsapo4service.exe and dtscnt64.dll. DTS:X uses these services in order to be working. You can see error reports in Windows Event Viewer.

1. Download Revo Uninstaller Freeware Portable - Free and Full Download
2. Uninstall Realtek Audio driver and remove all leftover files and registries.
3. Uninstall DTS:X Ultra and DTS Sound Unbound from Windows Apps tab. (Remove all leftovers too)
4. Reboot and do a windows update. Allow Windows to detect and install Realtek driver itself. "DON'T" install the Realtek driver in Acer Support.
5. Reboot.
6. Download the Realtek Driver from Acer Support page and "DON'T INSTALL". Just extract the files to a folder.
7. Go to "(Extracted Folder)\Win64\Thirdparty\20200210(This might be different)"
8. You'll see folders named like "DTSXULTRA" and "DTS4APO", right click the ".inf" files inside of these folders and press "Install".
9. Reboot after installing all ".inf" files.
10. Download the "Latest" DTS drivers in Acer Support page and install them with using "Setup_APP.cmd" inside the drivers.

AND THIS IS WHERE EVERYBODY GOT STUCK. DTS:X WILL NOT WORK AGAIN UNTIL YOU DO THE STEPS BELOW.
After researching so much hours, I have found the most up-to-date "Dtsapo4service.exe " and it's ".dll"'s

1. Head over to DTS other devices drivers download for Windows (32/64bit) (drvhub.net)
2. Press "Download Driver" inside of "DTS APO4x" and "DTS APO4x Service"
3. After downloading both drivers, right click the ".inf" files in both of the drivers and install.
4. Reboot and thank me.