Antminer S9, cannot update firmware

[gutsy_btc]

Hi everyone,

I've a S9 that does not respond to ping at all. I tried to use IP Reporter, but does not work. No sdcard reader, so cannot update. Pushing the reset button after 2-3-4-5-6 minutes for 10 seconds, nothing happens (red led should blink if succeeded) I disconnected all hashing boards, just the controller, and this is what happens in every case, after a while when booted:

- The 3rd led in the controller flashes every second
- Both leds in the ethernet blink normally
- no other led does anything

Its seems that the firmware/filesystem is corrupted and unrecoverable in normal way. Any ideas instead of replacing the controller?

Thanks to everyone!