Samsung Galaxy S3 Flashlight Solution
* Check status of Flashlight, if it is already ON then toggle between ON and OFF settings.
* Restart your phone and check.
Hardware
http://blog.brokenlcds.com/wp-conten...flashlight.jpg
For Flash not Turning OFF
* Check for water damage around flashlight and its components. If it is water damaged, clean it.
* Check whether Flashlight is short or not, if it is then replace it.
* If the above method fails, replace flashlight.
For Flash not Working
* Check whether IC is short or not, if it is then replace it.
* If Flashlight IC is not short then replace Flashlight.