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Been trying to upgrade my firmware on my max5 and max6 but it seems the firmware button is greyed out when connecting to my pc. I can modify the esc settings no problem but I am unable to upgrade the firmware. I have tried two other PCs with the same result. Currently both the max5 and max6 are on firmware 1.39. Is this the most current software version and that is the reason there are no other upgrade options?
Edit: Added image
Edit: Added image
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