Need tar "delta-gentools" for BC660K for DFOTA implementation

Hello,

I’ve checked about the DFOTA for BC660K in the pdf file located at the SDK: DFOTA Application Note.
It states that we must send the new firmware versions to Quectel, then the Delta is generated and sent it back.

But, checking at the forum here, other modules comes with the delta-gentools in the SDK.

I wonder where can I find it for BC660K?

Thank you.

https://dfota.quectel.com:8443/login

@herbert.pan-Q Could you advise where we can get for BG77 ? We need to gen delta between .005 and .201. thanks.

No BG77 found.

Sorry, the differential upgrade package of BG77 needs to be applied. I suggest you contact your purchase channel

I needed documents and tools regarding sdx Delta gentools v3.13 I have created all the files but unable to make script please provide me required tools and documents

My device is RM520NGLAAR01A08M4G