Yep oowow, krecovery, and all the images are the same story.
I suspected as much when I got no video output right out of the box - but I could see ADB ports 4000 and 5555 - meaning Android had booted.
Then I tried the Khadas EMMC Ubuntu, which flashed fine - and I was able to shell in and dump dmesg, but still no video.
Gosh bad luck, the one time I decided not to test a purchase. My VIM2 was perfect, still runs great. I only bought the VIM3 because there was a $20 discount at launch, so it sat in my “stock” until I decided to use it this week to see if it ran HAOS/Scrypted better than my overclocked Pi4.
Stumped how something as obvious as nonfunctional HDMI managed to make it through QC…
Darn. Guess it’s destined to eternally be a headless unit.
Here is what happened to me, bought some evm boards directly from TI. The first one would not boot, they would not take it back and told me to use the TI forum. Well I did, two of the actual TI employees told me how to go about burning an SD card and that I was not doing it correctly. Then they said the SD cards were bad… Then another one realized I know what I am doing and sent a replacement board. That board is dead too, I got tired of going back and forth with a bunch of fools. Dumped TI and decided on NXP stuff, TI is a huge company…
Might try to PM @rubywen about the board having dead HDMI.
I’ve tried a variety of monitors, DELL 1080p, LG 4k, Samsung 1080TV, etc.
My VIM2 works on all of them. VIM3 works on none of them.
I have tried a range of your O/S images, for both SD and eMMC. They boot fine - never get any HDMI output however. See my logs above showing dmesg output from your eMMC Ubuntu image. Operating system is clearly working fine - and yet, no HDMI signal. Monitors just go to into powersave mode like nothing is plugged in.
Oh, and yes, my cables are fine. Tried 3. They work with VIM2.