WD 60EFAX firmware update

Hi
I have just purchased 2of WD60EFAX drives for a Qnap TS-563 and they fail- There is a note on the Qnap compatibility list that the firmware may need updating to version 83.00A83. where do I get this from and how do update the firmware
Many thanks

This is an SMR model:

https://documents.westerndigital.com/content/dam/doc-library/en_us/assets/public/western-digital/product/internal-drives/wd-red-hdd/product-brief-western-digital-wd-red-hdd.pdf

It is not suitable for NAS applications.

https://www.technadu.com/western-digital-2-7-million-dollars-settlement-agreement-end-nas-drive-lawsuit/284591/

I suspect that this “5400 RPM class” model may actually spin at 7200 RPM.

Oh, yeah, welcome to the Community.

This post has all of the models known and rpm rates for the red plus series NAS disks

Many thanks for the replies. I just wonder why companies are still selling them as nas drives