820-01814 5V one port only boot loops

[No-Clean]

Board had some corrosion around the edges, I replaced all 4 CD3215 from donor and also replaced UB090 as well as U2800 with correct firmware, but one of the ports loops every 20 seconds, not sure where to start.

All LDO present

Also replaced the ISL9240

 

[2informaticos]

20s cycling is likely failed SSD indication.
Check diode mode to ground on its power rails.

 

[No-Clean]

But only one port is cycling, all others stay at 5V solid.

All SSD lines are not shorted.

Replaced U9080 and same thing, could this be NAND problem youre saying?

 

[2informaticos]

The strange thing is that not all ports have the same behavior.
Did you test the board with a charged battery?