Bricked D802 in fastboot mode, fastboot commands end as “too many links”

Got an D802 stuck on fastboot, no download mode.

know the "usual" unbrick way of erasing LAF RECOVERY in fastboot mode and later flash new ones + new rom
but can’t get the "erase" commands to work, starts but doesn’t finish and gives


FAILED (status read failed (Too many links))

how to fix this?

can’t use octopus unless i can go to normal download mode