Dell latitude 5580, motherboard cdp 80 la-e151p

3 amber 3 white blinks. Dell website sais it's problem "bios recovery" and suggested solution "recovery image not found"
(from here https://www.dell.com/support/manuals...e7a&lang=en-us)

I try plugging charger while pressing ctrl+esc, machine turns on, nothing and after 20 seconds it gives 3 amber 3 white blinks again.

Since ssd is replaced and had clean install windows, i've...