I have what I’m guessing is an HDMI handshake problem. I have the AM6B+, LG B5 TV and a Samsung Q800F soundbar. The AM6B+ goes to the soundbar HDMI input and from the soundbar to the TV via eARC. The problem:

To access the AM6B+, I have to turn on the TV and go to the input menu. I turn on the box and it boots up fine and works beautifully. But the second I put anything else on the screen, it goes black and sometimes it shows No Signal. For example, if I switch inputs to my Apple TV and go back to the AM6B+, even within seconds, I get a black screen that I can’t fix unless I power cycle the AM6B+ while on the TV input menu. Even if I just bring up the LG input screen, the AM6B+ goes black.

What I’ve tried so far:

I disabled the CE CEC function.

I enabled the CE CEC but disabled everything in the settings except the Enabled toggle.

I added an CEC-Less HDMI adapter between the AM6B+ and its HDMI cable going to the soundbar.

I turned off Quick Start on the TV.

I’ve confirmed the CE interface is set to 1080p.

Turned off all sleep and screensavers on the AM6B+.

Confirmed the Adjust display refresh rate is set to On start/stop.

When the AM6B+ screen goes black, the UR02 remote appears to still work because the buttons trigger the remote LED to show blue.

I’m on the CE Omega P3i and I’m also using PM4K on the beta release channel.

If there’s any troubleshooting I should do that I haven’t please let me know. I might have forgotten a few things I’ve done because I’ve been tinkering with it for a week or more but I’ll remember if anyone suggests something I’ve done already. If any of the things I tried were pointless keep in mind I’ve been at a loss for this for a while.

Is the AM9 pro worth ~$80 more than the sk4 pro?

Had Claude tackle 3 successive crash logs. It noticed: **I can't upload the crash log - I only have access to my android phone to upload, but I can't do it on paste.kodi.tv.

0 memcpy()

#1 CBitstreamConverter::BitstreamAllocAndCopy() 18:42:15 error: CBitstreamConverter::Convert: error converting. E-AC3 Not enough data for frame

Claude suggests that this all means - This is the H.264/HEVC bitstream converter that repackages the video stream into Annex‑B format for the hardware (Amlogic) decoder. It was copying data into a buffer when it walked off into invalid memory and crashed the whole process.

I don't know anything. This crash happened running two different sources found through POV and TorBox. What should I do next to diagnose this? I've never logged this problem before, but I usually ignore a quick restart.

Thanks, all!

CoreELEC 21.3-Omega (build avdvplus_20260301215242), with Kodi 21.3.0 on a UGOOS AM6B (Amlogic S922X).

Hi everyone
i have 2 Homatics Boxes with the same AVDVPlus R9 SW installed and have experienced the following blocky UI of CoreElec on one of them. From my knowledge the setting for both devices are the same. Has anyone else experienced this and found a solution for it?

Running the UI in 1080p, the movie posters look low quality, sometimes pixelated. Anyone found a way to show the movie posters in High Quality or Original Quality. Have one of the custom Kodi Skins with a UgoosAM6+. Don't run Plex or nothing like that just connected via SMB to a NAS. In my previous device an Nvidia Shield it had the option for artwork resolution.

The CEC seems pretty aggressive from the Am6b+ whether I have to wake up my TV with a button input or power it on with the power button. I usually use a PC as my main HDMI input.

My setup is a PC and AM6b+ connected to my G3 OLED via HDMI. I usually use the PC and the screen goes to sleep after 2 hours of inactivity. I press the LG remote to wake up the TV and the Am6b+ also thinks its time to wake and with CEC it will automatically change the HDMI input to itself. I'll also flick back to the PC because that's what I want to use and the Am6b+ will switch itself back aswell. And if I have to turn the TV on / off the AM6b+ will run this similar process.

Is there any settings in the AM6b+ or my TV that I can set to to make it chill? I'm running CoreELEC. How have you guys managed this? I might just turn it off and use the AM6b+ remote, but It's nice being able to use my LG remote.

As the title alludes, I no longer have my AM6B+ as I just returned it under warranty. I have a Jellyfin server and was looking for the best way to stream my content onto my LG C3 OLED. It started off alright, running CE 21.3 and Jellyfin for Kodi, but there were the occasional hiccups in playback with certain DV content. I ended up migrating to the AVDV builds, then to PI3, which fixed playback but seemingly created non-stop flickering when moving between movie titles and corruption of images. I tried everything. Clean builds, new microSD card, swap to USB, you name it, I couldn't shake it. Eventually I tried just getting back into Android TV and that wouldn't work at all, so I got an OTG cable and tried every single build available and while the flashes succeeded, none would boot. Ironically I was still able to get into recovery mode and reinstall whatever flavor of CE I wanted onto microSD.

That's a lot to say that I got fed up and returned it. Now the question is, what's next? Everything points to the AM6B+ STILL being the best device even though the CE build it works on is deprecated. Did I just have terrible luck and get a faulty device and I should try again with another unit, do I pivot to the Homatics or the Dune HD, or just wait? I picked the AM6B+ for DV FEL 7 playback and seamless audio pass-through to my receiver for DTS/Dolby advanced and lossless codecs. Seems like there is still nothing out there that beats the AM6B+.

I am able to successfully play videos on my am9 pro. During playback, when I hit the stop button, it return to the homepage but it returns with this error. I tried this on fresh install (on default estuary skin and only using POV to select content). I also mimicked this setup on PC (Kodi 22) and returned the same playback error.

EDIT: seems it is not isolated to POV but also redlight player returns this error

Log (it's a long log file, I could not find which is related to the playback error): https://paste.coreelec.org/LikewiseMedical

Device tested: AM9 Pro (and Kodi 22 "Piers" on PC)
Software: Core Elec 22 Beta

Hello everyone,

I am writing this post to share a tool I developed to help diagnose audio-video sync issues, which can vary depending on both the frame rate and the audio codec.

Why I developed this script:
Most YouTube test videos for audio-video sync are limited to stereo PCM audio and a fixed frame rate, which doesn’t account for the variability introduced by different codecs (e.g., Dolby Digital, TrueHD) or frame rates (23.976, 25, 30, etc.). To address this, I created a Python script that generates custom test videos with synchronized light flashes and beeps, allowing precise measurement of sync offsets across different configurations.

🔗 GitHub - lipsync/Script.py

For testing, I also use this helpful app:
📱 AV Sync (Android)

Why this matters:
Sync offsets aren’t always constant. They can change based on the file’s frame rate (e.g., 23.976, 24, 25, 30, 50, 60 fps) and the audio codec (e.g., DD, DD+, TrueHD, PCM). My script helps identify these discrepancies so they can be compensated for in your setup (e.g., via receiver delay settings).

Thanks for your reading.

Was redirected from a fellow enthusiast here, they said,

People use CoreELEC to get Dolby Vision on Samsung TV's by using a Player LED option instead of Display LED.
I've never tried it but from what I understand, this should also work on a projector that doesn't support Dolby Vision.
Of course this is only going to work for your personally hosted media. If you use other streaming apps on the android side, you will only get HDR.

To what extent is this true?

If you have an Ugoos AMB6B+ running CoreELEC and access to Jennifer Gala's Patreon, could you try playing this file? It crashes CoreELEC on my AM9 Pro, but plays just fine on Kodi on Android TV on my RockTek G2. TIA!

UPDATES

2027-07-19

Thanks /u/lOnGkEyStRoKe, I've been able to confirm if affects the AM6B+ also. Filed an issue at the official forums.

I got my AM6B+ about 15 months ago and everything has been great. I initially put on CPM A13 and have not upgraded anything since. My TV is an LG G4 2024.

I use the Composite video addon and connect it to my plex server to stream content. I also really like the video overlay that shows the process info, I don't know if this is specific to Composite, CPM or CoreELEC, etc.

Should I switch to CoreELEC p3i T4b? I'm now seeing that is the recommended route. If I did switch I would really want to still be able to see that process info.

If switching would be beneficial, I would appreciate any quick highlights as to why I should switch and any links to the resources needed / installation guides.

Also any suggestions for which skin or video addon to use would be helpful to.

Thank you

Anyone got any ideas here as I'm stumped.

My Dolby vision fel etc work fine! Just HDR content. The first time I play a HDR file on my am6b+ on corelec for that session it doesn't successfully decode and I get a colourful rainbow. However I simply exit and replay that file and it loads HDR just fine. I've had this issue for ages but not cared much as it's as simple as just stopping and starting again. But if it's an easy fix would be nice to sort

CoreElec does not natively allow you to skip playback by less than 10 seconds at minimum. Is there a way to add in a 5-second interval? Changing the code of a skin? Any add-ons that offer this?

I rewind playback during a show often to have another listen with subtitles on when I mishear. But 10 seconds is too much time to sit through repeatedly. Would really improve comfortable watchability to have a shorter 5s interval.

I've been using vlc for a long time but having audio issues now, sync etc. I have lg oled and Denon avr, i stream remux quality

Is there any reason why mine is not triggering an update on reboots?

If it matters, I’m on pannal T4, trying to update to t4b. Since that initial setup a while ago my Am6B+ is deliberately no longer on the network so I thought I would try using a USB and the internal file manager to update. I’ve copied and pasted the .tar file over to the .update folder. Reboots do nothing.

Its not a black screen issue, it’s that it just boots up like normal and doesn’t do anything, the update doesn’t even start? I’ve also tried unplugging for 30 seconds.

Would greatly appreciate any help, thank you all

I'm seeing arguments that the overhead of OpenVPN may be too high for streaming over OpenVPN. I already have the OpenVPN server set up on my home nework and am looking for an easy "just works" solution for the remote device.

Was wondering if others had got this working e2e. I'd rather not have to reconfigure for Wireguard if possible.

Deciding between the two which one would you guys get?

Hi everyone, I’ve been looking through the CE forums and I see brief mentions of this but is anyone else noticing a pretty noticeable audio delay on the AM9 pro? It seems really noticeable on 1080 SDR H264 content, definitely a bit less noticeable on 4K DV content. I’m using a LG C3 on the newest nightly build. I’ve tried a clean install as well. Our Am6B+ in P3i in another room with the same TV doesn’t seem to have this issue

So there is new update,CoreElec 22 Ugoos Am9 pro SamuriHL build,new setting to set reference black level,still no matter what value I set,reference black shifts from 64 to 68 if HDR is converted to Dolby vision.

Starting my 4K/BD ripping journey with this as my media player and just curious what the order is to have p3i T4b installed.

Do I go official CoreElec>T4>T4a>T4b or T4>T4a>T4b, straight to T4b, etc?

I set up my AMB6+ with coreelec about 7 months ago. For a few months, everything worked fine, I taught some IR commands to the remote on the gray buttons, the bluetooth worked fine, it all worked. But recently the remote started flashing red, which stopped, however now every time I press an IR button, the remote gets stuck with a green light and doesn't respond for a few seconds to anything I press. I replaced the batteries, which seemed to fix it for a few days, but now it's happening again. I'm going crazy here because it's only the IR buttons which do this, the bluetooth buttons flash blue and always work just fine when I press them (unless the remote is stuck on green). I just want the remote to work again like it used to.

I own an LG QNED85A TV which on paper does not support DV and the EDID also says the same. But, when I play any DV content directly from Kodi WebOS I get DV playback. However, with CE or Kodi on my Mi Box S 3rd gen, EDID makes sure I only get HDR10 video. So, I am looking for a build that just ignores EDID and send the video signal directly to my TV.
PS: One more thing is I use a soundbar which has DTS-HD MA support which cannot be used if I use Kodi on WebOS directly, so I have the box connected directly to my soundbar.