Here is the tutorial of how to update firmware in VESC TOOL for fsesc7550.
VESC tool : 2.06 ----> 3.00 firmware version
Step 1:Power on the fsesc7550 and connect it with PC.Update warning will pop up if you are using the old firmware.Click "ok" to the next step.
Step2:Click"Firmware"-- "Bootloader" -- download arrow, click "Yes" , and then upload it.
Step 3: Click "Included Files", then click the download arrow, and confirm with clicking the "Yes" in warning.
Step4: Firmware updating completed when the progress bar shows "Upload done"，click " ok" to VESC tool main page.
Step 5: To check the current firmware version here:
Now, the firmware update for fsesc7550 is completed!
VESC TOOL download: https://vesc-project.com/vesc_tool
Get Flipsky FSESC here: https://flipsky.net/collections/electronic-products
See firmware updating and parameters setting in the following video: