Power On Indicator

Power On Indicator


(4 stars)


Download for Android Like

10,000 - 50,000 downloads

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Power On Indicator simply flashes the device LED slowly, letting you see at a glance if your device is powered up. Note - most Android phones will not let any LEDs flash while the screen is on, so turn your screen off to see it work.


This application was written to overcome a hardware design flaw in the HTC Desire. When the Desire screen is off, there is no way of telling if it is powered on or not. The only way to switch on the screen is to press the power button, which boots the phone if it was off. This frustrating sequence led to a lot of accidental boot ups, and popping the battery out of the back of the device to stop the load sequence.

I wrote this app to blink the LED allowing you to be sure your phone is on or off.


Thanks for using Power On Indicator! I hope you find it useful. I must point out though, controlling phone LEDs is very difficult for software developers. Often there are reasons why the LED won\'t blink in ways I cannot fix. For example:

1 - You must exempt this from task killers or it won't work for very long.
2 - On most Android phones, all LEDs disable when the screen comes on.
3 - Not all phones support all settings. For example, a hardware limitation means the HTC Desire will only flash green once a second.
4 - Dragging your application's notification bar down disables all LED flashes for a minute.
5 - Enabling Direct Mode in other LED controlling apps will interfere with it.

Thank you everyone for your positive feedback!

I have decided to start compiling efficacy reports. More always welcome. Please let me know rather than giving 1 star.

HTC Desire - Works, but only with Green light
HTC Desire S - Works, but only with Green light
Desire Z - Works, but only with Green light
HTC Wildfire - Works, but only with Green light
Samsung Fascinate
Xperia arc - Works
Motorola Defy - Works
HTC Sensation - Works intermittently?
Samsung Galaxy S - Will never work (it has no physical LED)
Xperia Ray - Works intermittently?
Xperia U - Does not work
ZTE Warp - Does not work

Tags: power on indicator apk, power on indicator.apk, power on indicator v1.3 apk, apk power star, poweron indicator apk, flashing power indicator apk, how to change led indicator on motorola defy, indicator, power indicator, power indicator widgets.

Recently changed in this version

Version 1.4

* Added ability to disable when charging.
* Added ability to disable when battery low.

Version 1.3

* Added some more colours. A user request...

Screenshots Power On Indicator
View bigger - Power On Indicator for Android screenshot
View bigger - Power On Indicator for Android screenshot
Comments and ratings for Power On Indicator
  • (67 stars)

    by Jon Manilenio on 09/04/2014

    Xperia zr. Maybe you can make one that corresponds with the signal too? Thanks! Update: started going bonkers, had to uninstall.

  • (67 stars)

    by Joshua Kyle on 28/01/2014

    Pls. Fix this! I don't why it doesn't work

  • (67 stars)

    by Anjar Firmansyah on 26/11/2013

    Apapun Rom nya, aplikasi ini akan selalu saya install di Xperia Mini Pro (XMP) saya. Dengan aplikasi ini, led di XMP saya bisa di setting untuk menyala berkedip terus seperti led pada hp Blackberry.. Terima kasih Developer, ini aplikasi yang sempurna

  • (67 stars)

    by Stacy Elkin on 24/11/2013

    Works for a little then always stops working if at all on my Samsung S3 & S4. Such a shame because thr is only a couple of apps like this and all are dumb or faulty. Also needs to be dimmed slightly because it might fry the light. WORTH FIXING THIS APP AND COULD MAKE GOOD MONEY IF WORKED SO PLEEEEASE FIX!

  • (67 stars)

    by Nitish Pandey on 12/11/2013

    I downloaded it about two months ago. And i was really impressed with it as it did what it promised to. But before a month it stopped working.

  • (67 stars)

    by Jacov Nawfal on 30/10/2013

    It works for a time but as soon as i tun my screen on then off, it will not flash again unless i open the app again. Please fix it. And thank you! :)

  • (67 stars)

    by Ninad Khadse on 20/10/2013

    Just needs an ability to select a custom color. Then it'd be brilliant.

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