Tips - Qnap [Firmware Upgrade] System update failed. Firmware file format error. Error code: FW004

I got problems to update firmware on old QNAP product.

When I tried to update firmware through web interface I got this error:

[Firmware Upgrade] System update failed. Firmware file format error. Error code: FW004

Solution was:

1. Start reading this interesting article:

How To Update Qnap Firmware

http://qnapsupport.net/qnap-uygulamalari/qnap-firmware-yazilim-guncellemesi-nasil-yapilir/

2. I went on qnap support web page and I downloaded new firmware (and previsious version too)

https://www.qnap.com/i/it/product_x_down/product_down.php?II=107&cat_choose=1

3. I downloaded and installed Qnap Finder

QNAP Qfinder Pro for Windows

Europe USA Global

https://www.qnap.com/i/it/product_x_down/product_down.php?II=107&cat_choose=4

4. I installed firmware utilizing qnap finder and installation went well

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