# Arduino Uno R3 problems with USB **URL:** \ **Category:** Arduino\ **Created:** [January 8, 2013, 2:26pm UTC](https://community.sparkfun.com/t/arduino-uno-r3-problems-with-usb/25770 "2013-01-08T14:26:13Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![KirkHamster](https://avatars.discourse-cdn.com/v4/letter/k/2acd7d/32.png) [@KirkHamster](https://community.sparkfun.com/u/KirkHamster)\ **Post date:** [January 8, 2013, 2:26pm UTC](https://community.sparkfun.com/t/arduino-uno-r3-problems-with-usb/25770/1 "2013-01-08T14:26:13Z")
Yesterday I could suddenly not upload code on the Arduino. This is the verbose output: (just upgraded from 1.0.2 to 1.0.3 to see if that fixed it ) Using Port : \.\COM7 Using Programmer : arduino Overriding Baud Rate : 115200 avrdude: Send: 0 [30] [20] avrdude: Send: 0 [30] [20] avrdude: Send: 0 [30] [20] avrdude: Recv: 0 [30] avrdude: stk500\_getsync(): not in sync: resp=0x30 avrdude done. Thank you. it says Overriding Baud Rate 115200, but in Device Manager it is set to 9600. Anyone have any ideas? I tried different ports and cables. Same everywhere. Edit: Tried same cable/usb port on a Mega, worked fine. Arduino.exe says that the Uno is connected on the correct serial port. ---
**Author:** ![KirkHamster](https://avatars.discourse-cdn.com/v4/letter/k/2acd7d/32.png) [@KirkHamster](https://community.sparkfun.com/u/KirkHamster)\ **Post date:** [January 8, 2013, 2:41pm UTC](https://community.sparkfun.com/t/arduino-uno-r3-problems-with-usb/25770/2 "2013-01-08T14:41:57Z")
Ah i fixed it. I was working on getting my Uno and Mega to talk over RX/TX. Apparently the Uno doesn’t like that, but the Mega didn’t mind as long as I was using RX1/2/3 ports… I had to disconnect RX/TX wires on Uno and then it Worked. Should have known, I actually read that yesterday! Marking as solved and leaving it here in case other people has this issue.