Hello everyone,
I recently bought a used QNAP TS-228A that was advertised as unused. Unfortunately, it does not seem to work correctly, and I would appreciate some help diagnosing the problem.
Symptoms:
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The NAS powers on, and the fan runs.
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The startup beep behavior is inconsistent. Sometimes I hear one beep, and on some earlier attempts I heard two beeps.
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Sometimes the HDD LED turns on when a drive is installed.
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The NAS is not detected by Qfinder Pro.
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It does not appear in my router’s connected devices or DHCP client list.
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The LAN LEDs behave inconsistently. The front LAN indicator sometimes lights up, and the rear Ethernet port has occasionally blinked, but the connection does not remain active.
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On one occasion, the NAS briefly appeared in my router’s device list, but disappeared shortly afterwards.
What I have tried:
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Tested with and without a hard drive installed.
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Tested with a different Ethernet cable and a different router port.
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Tried another 12 V, 5 A power supply. The behavior was the same.
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Tried the RESET button, holding it for both 3–5 seconds and around 10 seconds, but there was no noticeable response.
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Tried the official USB recovery procedure using two different USB flash drives prepared with Rufus and the recovery image for the TS-228A.
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During the recovery attempts, I only heard one beep. I did not hear the three short beeps that should indicate that recovery has started.
The NAS sometimes powers on normally from the outside, but it never completes a reliable boot or becomes accessible over the network.
My questions:
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Could this be a corrupted firmware or DOM flash issue?
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Could the Ethernet controller or motherboard be faulty?
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Is there another way to recover the TS-228A if the USB recovery procedure does not start?
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Are there any diagnostic steps I can safely perform before assuming that the motherboard is defective?
I would be grateful for any suggestions. Thank you in advance!