Couple of weeks ago my main router CCR1072 rebooted without any known reason and sent me an autosupout file - which I did not took any notice from (probably bad "descision").
Yesterday I discovered that somehow the admin password was cleared, made me fear it had been compromised somehow.
I had also lost access to writing or deleting files from it, including performing a backup. I read that this might come from some kind of NAND failure.
Ran a /system check-installation which passed without errors.
Then I rebooted it, but it failed to come up. Max fans and an endless loop with the text "Loading kernel" in the display and a brief flash in red "Failure" LED before it beeped and tried to reboot again.
Replaced it for a spare CCR1036 and brought it to my desk where I managed to recover it using Netinstall.
Now it looks "normal" but what are the changes that it does not suffer from any kind of permanent damage?
Is this all about something going messy in the software, or can the hardware be affected?
I don't want to re-install it just to end up in the same mess after a while.