"Hi I have just gone back to downloading MP drivers and started the wizard. Again it fails to upload firmware watching the device manager it will refresh several times when I unplug and plug in. I have now found it under com port and changed it to…"

"I have left the px4 plugged in and lights on, but no I cant see the new com port under USB"

"Hi I have the same issue I recently purchased a PX4 but have been unable to upload its firm ware. I have searched the forums and spent hours trying to get it to connect. I am now using APM2 after MP did not seem to work. The drivers (they say they…"

"Hi,
I have the same problem I have done a hot fix for windows xp that now got it recognising a new SDHC card, but I still get the "error uploading firmware" any help in getting this first step sorted out will be appreciated."