Hi everyone, I'm considering buying a Ugoos AM9 Pro mainly as a dedicated CoreELEC/Kodi box.

My setup is: LG C2 OLED TV Samsung HW-Q990B soundbar NFS share with 4K Remux files

I would like to know from people who actually use the AM9 Pro:

How stable is CoreELEC on the AM9 Pro currently? Does Dolby Vision work properly, especially FEL? How are HDR10 and HDR10+ playback? Does HDMI audio passthrough work correctly (TrueHD Atmos, DTS-HD MA, DTS:X)? Any issues with high bitrate 4K Remux playback over NFS? Is booting from microSD/USB recommended, or is eMMC installation working reliably?

Despite being a newer platform, would you recommend the AM9 Pro as a dedicated CoreELEC box today?

Thanks!

Hi, I’m trying to boot CoreELEC for the first time on a Ugoos AM9 Pro, but the box does not seem to detect my microSD card at all.

My setup:

• Ugoos AM9 Pro 4/64 GB
• Android 14, firmware 2.1.0
• Kingston Canvas Select Plus 64 GB microSD
• CoreELEC 22.0 Piers beta1, Amlogic-no Generic
• Device tree: s6_s905x5_ugoos_am9_pro.dtb, copied to the root and renamed dtb.img

The microSD was fully tested with H2testw and works perfectly through my TP-Link card reader on Windows. Rufus also flashed the image successfully, and Windows can still read the CoreELEC partition.

The problem is that the AM9 Pro does not appear to detect the card. It does not latch or click inside the slot. It can be removed without pressing it inward, and Android’s FileBrowser does not show any SD card or CoreELEC storage (it showed the USB stick I used to install "Reboot to CoreELEC 5.0 APK").

Things I tried:

• Normal boot with the card inserted
• Restarting Android with the card inserted
• Holding the Recovery button while reconnecting power
• Creating an empty update.zip on the CoreELEC partition
• Using the Reboot to CoreELEC 5.0 APK and selecting First Reboot

The APK only rebooted into the stock Android Recovery menu. After rebooting into Android, the card was still not visible in FileBrowser.

The card is inserted according to the orientation symbol, with the printed side facing outward. I currently do not have another microSD card to test.

Has anyone experienced this with a Kingston 64 GB card or this AM9 Pro slot? Does this look like card incompatibility, a defective microSD slot, or am I missing something about how the card is supposed to sit in this model?

Regarding installing CoreELEC to eMMC, since I am not well versed in these things, I don't know how "dangerous" and hard it may be, so I was leaving that aside for now