Hello. I am happy to be added to your group. I want to share the Few information as appotech. In fact, I only know a little about the chip (only the chip 93F). Download and upload Firmware in the CW66xx series in my personal archive.
It is MPTools. In fact, you can download the firmware with it .But For export dump ,password needed.

This is the CW6693F.
This chip is programmed by MPTools. It seems that its programming method is not similar to JL. In fact, there is no need for hardware, dongle or programmer in 93F.
You connect the dad-dad usb cable, then you connect a jumper from GND to one of the chip bases (momentary disconnection and connection, something like a reset).
After this connection is established (something like bootloader JL)
If the chip is empty of the program or the program inside it is damaged, the chip is ready for programming and there is no need to connect GND to the corresponding pin in the chip and the sound of connection is heard.
You may ask, which is the pin to which GND should be connected in the chip? I don't have the datasheet of this chip, but I will show the corresponding pin on the photo.

Let's talk about MPTools. Is it an sdk or part of it? Why did I ask this question? Because there are soundPromt files inside its folders. I will upload it in a zip file later.