GT-N7105 doesn't detect USB connection
after getting my Note 2 LTE back from repair (they changed the mainboard, speaker, vibrator and USB port) I'm now trying to root it using Odin 1.85 (have tried 3.07 too). The problem is that neither the phone nor the PC detects any USB connection at all while in download mode, ie. it doesn't even pop up with a driver request or anything. Device manager doesn't show any change in devices either. I've tried with going into download mode with voldown+home+power and with 'adb reboot download'. The phone is fully charged.
The PC runs Windows 7 (I used this same machine to root the phone when I got i back in November, and I haven't changed anything on it, other than the usual software updates). I've tried two cables that both work when connecting the phone while booted normally. The one I'm using now worked fine to transfer about 1 GB of pictures back to the memory card.
When I sent the phone in for repair after it died on me during nightly charging it was running 4.1.1 as I hadn't gotten around to updating.