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Bios A11 update for Inspiron 7520.

I found the BIOS update for my Inspiron 15R SE 7520 on these pages.



I am using Windows 8.1 (orignally system was preloaded with Win 8) which is causing a few small problems like the touchpad notification light (enable or disable light-small orange LED) is not working, airplane mode has multiple entries like when Fn+F2 is pressed, airplane mode is enabled but system shows it as disabled.

So does these problems is solved in this BIOS?

Is it safe to update to A11 or is this some kind of beta BIOS?

Please also may I know the overall issues fixed in this BIOS update?

Thank you.