My Yun stuck at uploading pocessing, and the RX and TX LED no flashing

Official Hardware Classic Yún
1

hi everyone,

i bought a new yun yesterday, and i connected it to my mac and wanted to try blink demo code
but the ide showed uploading stuck at about 90% meter for a long time, and the RX and TX LED no flashing at the meantime
then i tried the following things:

  1. reboot Mac and Arduino IDE;
  2. reset 32U4 quickly after clicking the uploading button,
    it worked out sometimes but not for every time, and i cannot stand doing all of them at every uploading process

my computer is mac retina, Mac OS X 10.9.4
and arduino IDE version is 1.5.7 for Mac OS X and Java 7
hope for any solution to this problem, thanks

2

i found there are already several topics on it
http://forum.arduino.cc/index.php?topic=263875
http://forum.arduino.cc/index.php?topic=263118
http://forum.arduino.cc/index.php?topic=254427

unfortunately, these is no clear solution, the followings could help but are not perfect

  1. switch to Windows or Linux?
  2. press reset button twice after clicking the uploading button
  3. uploading via wifi instead of usb cable

i think it should be a bug and hope someone can fix it

3

playmore can you try downloading a nightly build of the IDE? http://arduino.cc/en/Main/Software#toc4

The first two topics you mentioned are related to a macosx related bug we fixed last week

4

With the help of Arduino support I was able to fix this. The reason for RX and ON diods stuck on shining is the faulty bootloader.

You have to burn the bootloader again, I did it using another Arduino and wiring up ICSP pins. You can find several guides on google.

But beware, Yun has to power on when you power on Uno (in my case) and for that you have to wire
Uno 5V pin to Yun ICSP 5V pin
Uno GND pin to Yun ICSP GND pin

Good luck