A red line on the corners of Galaxy S3 screen appears. How can I remove it?

Last Update date :2017.04.19

This is caused when some apps perform long operations on the device. Thus, Strict mode allows the blinking to notify such activity.

 

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If user does not want to use it, just disable strict mode.

 

To disable, go to Settings->Developer Options->Strict Mode->Uncheck. User may turn off Developer options too.

 

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Related Model Information

GT-I9300MBAXSG

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