I've started running into a weird problem with my VCP's and Betaflight when I try to update firmware for my FC's. Happens now on both F411's and F7 FC's. Here's the details....
I plug the FC into my PC and it pops up in Device Manager correctly as a VCP and for my F411 FC it's on COM9. It connects just fine to Betaflight and I can go in and make any changes I want and all is fine. However, if I want to update firmware when I get to the point of clicking on the "Flash Firmware" button it starts to go through it's normal reboot sequence. Then I get a message in red in BF that says "Rebooting to ROM Bootloader" followed by a "Failed to open serial port" message also in red. When I go back into Device Manager instead of it showing up as a VCP it pops up under the USB Controllers section with a yellow flag stating "Unknown USB Device (Device Desciptor Request Failed)". I've tried updating the VCP driver, choosing from my list and it fixes it back to where it will show up again as a VCP on COM9, but then does the same thing when I try to update the FC firmware. Any ideas on what the issue is and how to fix it? This just started recently so I'm not really sure what is going on.
Thanks
I plug the FC into my PC and it pops up in Device Manager correctly as a VCP and for my F411 FC it's on COM9. It connects just fine to Betaflight and I can go in and make any changes I want and all is fine. However, if I want to update firmware when I get to the point of clicking on the "Flash Firmware" button it starts to go through it's normal reboot sequence. Then I get a message in red in BF that says "Rebooting to ROM Bootloader" followed by a "Failed to open serial port" message also in red. When I go back into Device Manager instead of it showing up as a VCP it pops up under the USB Controllers section with a yellow flag stating "Unknown USB Device (Device Desciptor Request Failed)". I've tried updating the VCP driver, choosing from my list and it fixes it back to where it will show up again as a VCP on COM9, but then does the same thing when I try to update the FC firmware. Any ideas on what the issue is and how to fix it? This just started recently so I'm not really sure what is going on.
Thanks