[youtube]https://streamable.com/e2ewr[/youtube]hello friend
please i need help with lenovo 50-70 with LA-B091P Rev: 1.0 it have a short circute on the motherboard i fix it and changed the (nuvoton 1o ) and changed QFN10_3X3 and i programmed the nuvoton but now it have start only ( the minboard start and restart agine and all voltage is ok

link for video
https://streamable.com/e2ewr

а пост что показывает?
если биос исправен- ушел комбик.

thank youfor replay
( combo ) mean the cpu ?

if there is no post card
1) flashing bios + ec with a valid dump
2) turn off the power of the video chip (switch to the UMA )
3) measure the resistance of the data lines USB
(re-allocate the attachment to another resource - so far less than 15 posts and I do not see your attachments)

CPU+PCH=combo unit

in case of breakdown on the 3.3 volt line, the outage of the hub USB in the combo unit fails

(sorry this is machine translation)

thank you dear frined for your help
i found the problem it was on the usb3 :)
problem fixed

thank you
Beast regards