Could not connect to bootloader

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gabrielalima
Beginner
Posts: 3
Joined: Thu Jan 24, 2019 12:15 pm

Could not connect to bootloader

Post by gabrielalima » Thu Jan 24, 2019 12:22 pm

Good Morning!

To upgrade the Crazyflie 2.0 firmware: Press the ON/OFF switch more than 1.5 second until the blue led blinks. Then release the button and the two blue leds should blink.

I have four Crazyflies 2.0. In three, the procedure was successful, however, in one of them there was an error. Only the M2 led blink, while the M3 stays on but not blinking.

The program reports: Could not connect to bootloader
How to proceed in this case?

Thanks

tobias
Bitcraze
Posts: 1786
Joined: Mon Jan 28, 2013 7:17 pm
Location: Sweden

Re: Could not connect to bootloader

Post by tobias » Thu Jan 24, 2019 12:39 pm

You probably hit a failed flashing. Then start from a cold boot which means remove power (battery and usb), hold button while connecting either of the power and you should be able to get into bootloader mode.

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