Not able to Upload Scetch n to Arduino DUE

Hi! I am using Aurduino1.5.7 with Windows7 32 bit.machine.
The drivers seem to be installed properly.
The device manager shows ' Arduino DUE Programing Port (Com3).
But when I go for uploading, after compilation following msg is displayed

"No device found on COM3"

Can sombody help me?

Hello!
Got the solution in following posts.
http://forum.arduino.cc/index.php?PHPSESSID=298iirkbau1cuq8p880njpk320&topic=167492.msg1366523#msg1366523

http://forum.arduino.cc/index.php?PHPSESSID=298iirkbau1cuq8p880njpk320&topic=167492.msg1373055#msg1373055

http://forum.arduino.cc/index.php?PHPSESSID=298iirkbau1cuq8p880njpk320&topic=168399.msg1279303#msg1279303

I have not tried yet, but appears that It will work.

Hi Guys,

in case anybody else is still having trouble with this - it's Sept. 2014 and you are not alone.

Just received my new Arduino Due Serials on the Packaging: A000062 or Barcode: D00027498 and got the same issue on Win7 x64 and Lubuntu 14 x64.

When I use the Programming Port I get the "No device found", when I use the native Port I get a verification fault.

Any hints regarding the reset of Baud-Rate did not help as the IDE (tried 1.5.7 and Nightly) will reset to 115200 (Programming) or 921600 (Native) before it pushes to progam. And I've confirmed that R23 is in fact 1k.

So what else can I do?!

Why can't it be easy just for once ...

You've tried the erase button?

Yes, I've tried:

holding erase for long then reset
holding erase, then erase and reset then release then repower
holding reset then erase then then release then repower

and some other various combinations

I am happy to try more, but would like to know "how can I spot if it worked".

Also I've moved to another Post, combining my reasearch and my own information, so somebody else may find it all in one place

http://forum.arduino.cc/index.php?topic=266544.msg1879481#msg1879481

And you've tried the native port after erase? Normally the programming port
should always work, but native port programming can fail if its configured
by the previous sketch.

If neither port work I'd suspect the host computer's setup. I gather that on Windows
there's lots of scope for other software to mess with serial ports and cause issues.

Do other, non-Due Arduino boards work?