Can you please give me information on that detailed?
1. Is the keyboard necessary removed completely from the S9?
2. After soldering a connector, how to connect the keyboard to chip burner?
(I cannot see the chip burner connection shape from your photo)
3. Is this OK? After showed "Target programmed successfully - Completed", then close this program and disconnect the chip burner.
4. Is it necessary to remove the attached connector?
5. How many of those (chip burner and connector) can you send? (Our company has service office in 6 cities)
I think that there is no problem if at our service staff level, but I think that there is a risk of a greater or lesser damage for the keyboard.