QNAP TS-228A inaccessible with HDDs

[cosvitec]

As title, from days, my QNAP TS-228A seems to be totally inaccessible with HDDs.

I removed both HDDs and I checked them with CrystalDiskInfo, but they results to be still good. (I don't know if normal, but when I put HDDs to PC, I see multiple not openable 5 partitions E:\ F:\ G:\ H:\ I:\)

Anyway, if I start the QNAP without HDDs, it become visibile and accessible on the network, I also was able to update the firmware from 4.3.4 (2018) to 4.5.4 (2021) but this didn't solve the problem.

If I put one or both HDDs, the QNAP starts, but it's inaccessible from Web Browser, from SMB, and from Qfinder Pro also, as if it didn't exist.

Finally, I also tried to directly connect the QNAP to my PC, with a normal LAN Cable, and with a cross LAN Cable, but nothing changed.

So, I have no idea on how to proceed, it would be great to have another QNAP TS-228A and other 2 HDDs for make other tests, but I have neither of them.

Waiting for hints.

Thanks in advance.

[dolbyman]

sounds like something on the disk config is busted (os is on the disks)

can you start the nas from scratch and restore from backups? (always have external backups)

[cosvitec]

Unfortunately no.

[AlastairStevenson]

sounds like something on the disk config is busted (os is on the disks)

Worth trying the 3-second and 10-second reset then.

Finally, I also tried to directly connect the QNAP to my PC, with a normal LAN Cable, and with a cross LAN Cable, but nothing changed.

Does the link detect LED illuminate on the switch port the NAS is connected to?