V965 firmware

I know i read about this a while back here but now can't find any reference.

What is the way to read/write the firmware from/to one of these radar detectors. Also, i take it there are no firmware repositories for the detectors with FCC ID QL4G7M4. I'm the kind of guy that likes to tinker way too much with things and finally ripped the rd apart to play with.

For the guy that have done this, is it the extra pins in the rj11 plug that you can do some kind of link over or was there need for a jtag. also what software?

If anyone knows anything about this, please pm me.

thank you!