I am not sure what is happening with my 450g, i was press the bios reset button when it's being turned on, and i plug out the power then reconnect, by the time i turn on again, the green light and port led indicator kept flashing infinity, on my serial it's kept repeating at this process :
This problems has been fixed, to those who needs, the cause either a insufficient adapter power and try to plug off the power for couple days, my mikrotik booting normally afterward.
I also thought my RB450G just broke after many years with only serial port green flashing, but i plugged in 12V with 3A and its alive again!
Last edited by BartoszP on Sat Dec 03, 2022 9:25 pm, edited 1 time in total.
Reason:removed excessive quotting of preceding post; be wise, quote smart.
So what changed after those many years? Did original power supply die? If not, it should have kept working. Did it perhaps have higher voltage? I saw that, RB stopped working with I think 24V, but worked fine with 12V. And when I looked inside, capacitors weren't in great shape at all.