Flight Core 2 Firmware update through QGC
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I am trying to setup my new Flight Core 2, but when I connect it to a USB port on my Windows 11 laptop with QGC 5.0.6 I get a message pop up saying "Power surge on the USB port".
The Flight Core 2 also got pretty hot -- I hope it didn't get fried!
Also, I am not clear from the rather brief documentation what file I need to download and use for the firmware update.
Do I need to use SDK 1.1 specifically or should I use the latest (1.5)? That directory contains
modalai_fc-v2_1.14.0-2.0.105.bin 05-Jun-2025 22:24 1867164
modalai_fc-v2_1.14.0-2.0.105.px4 05-Jun-2025 22:24 1758094
modalai_fc-v2_1.14.0-8.104.3.bin 05-Jun-2025 22:37 1896744
modalai_fc-v2_1.14.0-8.104.3.px4 05-Jun-2025 22:37 1786598but the doc mentions voxl_SDK_*1.1.0.tar.g.
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Hi, any word on this? At this point I am not able to use this product and wonder whether it is defective and needs to be replaced. Please advise.
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@VictorG have you looked at the instructions here? https://docs.modalai.com/flight-core-v2-usb-to-qgc/
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@Moderator yes, or at least I tried to. In this step:
confirm the “Serial Port” is correctly listed
QGC listed COM3 - COM6 but I couldn't determine easily how those map to my USB ports. At that point I noticed that the device is getting VERY hot, so decided to stop.
Is it normal for it to get so hot? Combined with the "power surge" warning I thought it was safer to stop before smoke.
I was able to use QGC to flash my Pixhawk 2.4.8 with PX4 with no problems, so I am pretty sure there is nothing wrong with the port or with QGC.
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@Moderator
I am having a similar issue. I purchased 3 of the Flight Core 2 boards. And, I tried 3 different micro USB cables. I am not getting any power to any of the Flight Core 2 boards from my PC laptop. I am using Windows 11 as well. I am unable to connect to any port on the laptop. I did try to connect one of the boards to a Mac computer through the Micro USB to USB connection. The board started to heat up and I had to disconnect. Is there a specific Windows driver needed for the Flight Core 2? I am at a loss at this point. -
I've had almost the exact same thing happen but I think ours got hot enough to desolder a part (see pictures). Feels like a manufacturing issue. Is there a way to send it in for an RMA/replacement/etc?
Here is more info:
We have a FC2.
The FC2 is brand new (purchased within the last couple months).
We did the following:
- connected the USB cable '10' to J3.
- connect a known working micro-usb cable to my laptop running QGC.
- didn't here the usual windows 'new usb device sound'
This was the first time we connected this board. We didn't see any LED's turn on within a second or two so we picked it up by the corners and noticed it was VERY hot.
We quickly disconnected everything.
We inspected the board and found a component on the bottom looks like it shifted off it's solder pads. See attached picture. We didn't inspect the board before hadn
What could have caused this? Especially given a few others have had this.
Thanks!