Restarting Samsung S3 when power button doesn't respond

1. Disconnect the usb/power cord from the device.
2. Remove back cover from the device.
3. Remove battery, and leave the back cover off. You will place the battery back-in in a second.
4. Reconnect the usb/power cord to the device and then to your PC. 
5. Now, while the device is connected, plugin the battery. This is the key step.
At this point, the device shows the battery charging animation, the black/white one on fullscreen, the one that is shown when the device is powered-off and charging. The device had not shown this image in a very long time, while the power button issue was going on, so this looked promising.
6. Now, I pressed the power button, and then the phone started to boot-up.
7. I then went inot downloading mode, flashed it again with the default OS and it was good as new. 

source: http://forums.androidcentral.com/samsung-galaxy-s3/234582-samsung-galaxy-s3-will-not-turn-5.html

Fixing MATLAB compiler error with Simulink function blocks in 2013a

The problem is with compiler updates in xcode 5.1. The 5.0.2 version still works by downloading it from the developer store and renaming the versions to different paths.

source: http://stackoverflow.com/questions/22563533/downgrade-xcode-to-5-0-2