"If I recall I took a look at the board and could not figure it out. My only assumption is some sort of failure in the Atmega32u"

"Colin, did you ever sort this out? One of my boards is suddenly doing the same thing. It flies a quad fine but USB, telemetry and even connecting through the CLI are all non-responsive."

""I had an APM clone which didn't work right in the first place."  Shoot me a PM Colin... glad to help you with it. Which one was it?  Can you shoot us a photo of where it ripped off the board? You may trip simply resoldering…"

"It works! For Mission Planner 1.2.38 you should use the following timing when uploading new firmware to APM 2.5 select firmware click yes to continue while detecting APM version press reset button wait for download from internet after reading hex…"

"Hi, For MAVLink, use 57600. For firmware upgrades, select 115200 and do not connect. You will have to push the reset button about the same time as you start upload. Regards Soren"

"Hi, setting COM6 to 115200 baud in Mission Planner won't let me connect to the APM anymore. Does UART0 support 115200? Can I change the baud rate for the bootloader? I never changed any baudrates on the APM. Where and how can I change these?"

"I had an APM clone which didn't work right in the first place. I'm on my third 3DR APM and haven't had any issues with the USB connection (APM2 x 2, APM2.5+)"

"Bootloader still runs at 115200.. Regards Soren"

"One Step ahead, but still not there. Soldered some pins to UART0 pin-out and to RST. Made a cable connecting my CP2012 USB UART to APM GND - GND, +5V - +5V, TX - RX, RX - TX, DTR - RST Board powers up Mavlink does not connect removed DTR -…"

"You can reduce the wear on the USB port by connecting a short micro USB cable, and then connecting a USB extension cable."

"Can I ask what version of APM do you have and how did you broke it ? I'm using USB port very often and  I would be very disappointed if it's happen to mine... : / Is there any way to prevent this ? Thanks "

"Hi, Oh in that case do use the telemetry port and an USB to serial adapter such as the FTDI ones. You should be able to connect the adapter to the "telemetry port" (JP4) and leave SJ105 and 106 in default state. If that does not work,…"

"Wait..... no. One of the soldering points also got ripped off. Also my soldering iron and myself can only handle normal pins but not SMD. Any other suggestions?"

"Haha, if you start soldering you might as well solder the USB connector back on :) "

"see http://code.google.com/p/ardupilot-mega/wiki/SolderJumpers On the bottom of the board is UART0 pin-outs, you can connect an FTDI cable to that and still use your board. OTA, I am not sure, technically there isn't a reason why you…"

"Hi, 2 questions: 1. How can I do it OTA? I think ordering a cable and waiting for delivery would take longer that the extra time for error checking. 2. The connector of the cable you pointed me to looks like it won't fit any socket on my…"