Last stock firmware version (V5.21(AASZ.5)C0) for NAS520 wanted

ariek

I would like to reinstall the latest stock firmware for NAS520.

V5.21(AASZ.5)C0

Where can I download this file. Zyxel doesn't offer download links for EOL devices.

Mijzelf

http://zyxel.diskstation.eu/Users/Mijzelf/Firmware/

ariek

Thanks for uploading it.

Mijzelf

http://zyxel.diskstation.eu/Users/Mijzelf/Firmware/

ariek

Thanks for uploading it.

Bastl83

@Mijzelf Can you please Upload again? I reactivate an old NAS for my son and the firmware has been elapsed.

THX

Baxioleek

@Mijzelf, hhi can u upload these files again? because i need repair my NAS from bad files. plz and thx for u effort

Mijzelf

https://zyxel.ddnss.eu/Users/Mijzelf/Firmware/

Baxioleek

there is a https://zyxel.ddnss.eu/Users/Mijzelf/Firmware/NAS520_V5.21(AASZ.5)C0.zip

but that is rather update file. do u have full restore firmware for that nas 520.?? thank u for u effort :)

Mijzelf

full restore firmware

What do you mean?