So, you finally got the Jelly Bean update on your Samsung Galaxy S III, but one little problem—you've got some red glow around the edges of your screen now. Is your phone messed up? No, it's just a tiny glitch that some users have been reporting after updating their Galaxy S3s to Android 4.1.1, and there are a few quick ways to get rid of it.
Method #1
Go to Developer Settings in the Settings menu on your phone, then turn offStrick Mode. This mode makes the screen flash when certain applications are using a lot of system power.
Then turn of Strict Mode. This mode makes the screen flash when certain applications are using a lot of system.
Method #2
Simply hold down the power button for 10-20 seconds to soft reset it.
Method #3
Press and hold the Volume Up + Home + Power button simultaneously to hard reset it. Then, when in recovery mode, select Factory reset.
You can also go to Settings -> Back up and reset -> Factory data reset -> Reset device -> Reset everything. Be sure to BACKUP your device before doing this, since it will wipe you phone clean. This is a last resort method.
All three of these methods have been known to resolve the problem, but the first method is the easiest and should be your primary option.