Urgent Please Need Help

I have a Mikrotik 433 AH he was working normally . today starting a Big problem it booying and i see the all led and beep but and give Lan connected after that he disconect lan and all led are OFF only one Blue Led like in picture.
i change different PoE adapter from 12v to 24v nothig change
i cant run winbox because no ip also cant use netinstall no ip

Please Help me to make it work

Thanks
sorry for my English
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connect it to serial cable and check what error i display on pc screen