I have an EQi12 with an i5-12450H CPU and 24 GB RAM that no longer boots, not even to BIOS. My situation is very similar to the case described in https://bbs.bee-link.com/d/5751-eqi12-wont-boot . I intended to update the BIOS but when the system booted to a screen I wasn’t expecting, I aborted the process. From that point on when I try to boot, the fan and the front LED come on but there is never any video signal nor any other visible activity.
I tried all of the applicable actions mentioned by Beelink CS-Bony in the other thread as well as some others found in internet searches without success. I could not replace/reseat the RAM. As I undestand it, the RAM is soldered to the motherboard and not easily accessible on my model. I could not see it when I opened my unit. In addition, I cannot tell if the keyboard LED is on as all of my keyboards are wireless except for one very old one with only a ps/2 connecter.