Setting `LED Flash for Alerts` not always reliable

Originator:mike
Number:rdar://11011402 Date Originated:3/8/2012
Status:Open Resolved:
Product:iPhone Product Version:All with LED torch/flash
Classification:UI/Usability Reproducible:Always
 
08-Mar-2012 10:22 AM Mike Mayer:
Summary:
When the `LED Flash for Alerts` in Settings->General->Accessibility is toggled ON the expected result is that the LED will flash for alerts. Neither iPhone 4 nor 4S performed this reliably.

Steps to Reproduce:
Toggle `LED Flash for Alerts` to On in the Settings->General->Accessibility menu on a device equipped with an LED flash/torch. 

Expected Results:
The LED flash should flash whenever an alert is received. (e.g. iMessage, push notification...)

Actual Results:
The LED flash may not occur at all, it may occur for a few hours, or the LED flash will successfully happen for a few days before failing to work. It will eventually fail to flash on notifications.

Regression:
Not a regression. It never worked reliably on any device where this feature was available as of 3/8/2012.

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