SXK80 - What tools are available to rewrite(restore) the device's firmware

[shejialun]

One of the purposes is to restore the firmware (just like using itunes to restore ios) and the other purpose is to try to rewrite the firmware first in case of device failure
I have gotten the NMRP tool to rewrite the firmware before when using the R7000 device, but I was told by Netgear tech support that this tool is not available on the SXK80, even though I did a test and the result is that I can only rewrite the firmware successfully using the NMRP tool when connected to port 5 of the device.
So what is the available tool to rewrite(restore) firmware on SXK80 device? thanks.

[BruceGuo]

I do not recommend NMRP. Please follow this page to try to restore firmware via tftp if somehow your device is bricked. 

[shejialun]

Hello @BruceGuo ,

Could you provide a guide or link to use TFTP?
Because I've only used the NMRP tool so far, thanks.

[BruceGuo]

I forget to put a link. Here you are. 

How do I upload firmware to my NETGEAR router using a TFTP client on Microsoft Windows? | Answer | N...

[shejialun]

Hello @BruceGuo 

Why do you recommend using the TFTP client more than the NMRP tool?
In fact the NMRP tool is simpler to operate and the NMRP tool uses TFTP as well, thanks.