How-To flash A-H BLHeli_S firmware
This is a quick how-to flash an A-H BLHeliS firmware, when your ESC support it, but you can´t see the firmware in the BLHeli Suite software.
Example: You have a Racerstar MS ESC, which has a BB2 MCU and should be able to use the A-H type firmware, but you only can choose an A-L firmware.
Open BLHeli Suite, go to “Options” and choose “Expert Mode”.
Then connect your ESC and proceed to flashing BLHeliS firmware. Click on “Ignore inappropriate MCU” and then you will be able to choose the A-H firmware.
Please note that your ESC should in theory support that firmware, so double check before flashing or you can damage it.