Is my bootloader disabled for STORM32 gimbal controller V1.3 ?

[ParamDeshpande]

I have a version 1.3 storm32 gimbal controller, I wish to update it's firmware from V0.9 to V2.4, I have followed the instructions on this page  http://www.olliw.eu/storm32bgc-wiki/How_to_flash_v1.x_STorM32_boards
And I have the issue where my DOS box shows OK and KO.
The above website shows debug issues of wiring connections and other stuff. I have verified all of the connections.

When in bootloader mode the MCU's yellow LED should glow, which does not glow in my case. So is boot mode in this board somehow disabled?
Do I need to solder/remove some resistor to enable it?

[oaltxf4o]

the yellow LED is irrelevant, The only thing that matters is that there is no activity on the green and red LEDs.

What section are you OK and what section are you KO? Both together with "No response from target..."

Have you verified that your ttl adapter works? is it plugged in to the right port on the STorm32(some versions have swapped header locations)

For SWD bootloader mode, you need to find the "Boot0" pads, and short them together. Then you need a ST-Link and follow the instructions for the First time flashing method 2. Don't forget to remove the solder bridge on the Boot0 pads when you are done.