IR Blaster S06: Discussion on Flashing Process, Pin Configuration, and Firmware Updates

This device can be bought from: https://www.aliexpress.com/item/1005003177081....order_list.order_list_main.95.21ef1802A6eGob. I think this blaster is an older revision of another blaster that has already been torn down and documented on this website: https://www.elektroda.com/rtvforum/topic3983995.html

## Flashing
I know I soldered the CSN pin but I didn't have any luck flashing it by grounding the CSN pin. I had to cut power off to the board momentarily. Other than that, I had no issues at all backing up the original firmware and rewriting the new one.

## Pin Configuration
After some testing and following the traces on the PCB, I've found the following mapping works for the IR blaster, receiver, and the reset button.

Added after 1 [minutes]:

Here is the configuration for the pins