You're sure you tried this LibreELEC-RK322x.arm-9.2-devel-20200427213246-b7186bc-rk3228b-a8.img.gz? If v88mars boots, this should definitly also boot ... I looked at your devicetree ... It matches completly the one I used for createing the v88mars image, Unless you can provide any debugs logs where an/the error appears I can't help
yes i did. i tried all, some images show blue led but no post, most show no led and no post at all. only v88 mars works but then , black screen after a few seconds but blue led is still on. i think its not an hdmi issue because ssh also stops so the devices seems to have crashed but stuck in blue led. how do you generate debian logs? the kodi logs dont really tell anything. ive attached a sample kodi log which i extracted from the device after another crash.