NoLED–Give your Samsung Galaxy S 2 a notification light


One of the small problems that people have mentioned regarding the Samsung Galaxy S II is the lack of a notification LED. This does seem a rather bizarre exclusion by Samsung – if you don’t notice a message when it was first received, there is no notification light to tell you that it is there. The same goes for missed calls, emails, etc. and you therefore need to toggle the standby to check for messages and the rest.

Having had a look into the problem today I have come across an app called NoLED via the XDA Developers Forum. Originally developed for the Samsung Galaxy S which also lacked a notification LED, NoLED displays a notification dot on your homescreen to make you aware of a variety of notifications. It gives you plenty of customization options and also the ability to display the time. At this stage I’m not sure how heavy it will be on battery life – essentially the screen is powered up to display the notification dot – so once you do notice a notification it may be wise to lock the screen again to save on battery. I’ll update this post if I do find the battery to suffer when using the app, if you’ve used it let us know in the comments.




  1. ben says

    pkease anyone tell me wht does this news mean? im so sick of english t.t thank you

  2. karnka says

    Given it’s an AMOLED based screen, power is not used by pixels that are black (unlike an LCD). So, in theory, this shouldn’t be a huge drain.

    I still find the omission of the notification light madness by Samsung :)

  3. Ian says

    I’ve just managed to weed out a battery drainer (Spb Wireless Monitor, in case anyone else is having problems, and Push email was actually using a surprising amount of CPU compared to eg. the Desire S, too), so I’ve started adding on potential battery drainers again. In CPU usage, NoLED consumes practically nothing, less than a second over the last day. Its drain due to having the screen live also seems to be negligible, though I’ll post again once it’s had 24 hours running.

    The most surprising thing for me about the SGSII is that the screen brightness doesn’t seem to have a strong impact on the discharge curve; on/off has a strong impact, but running for half an hour at maximum and minimum brightness were indistinguishable.

    • says

      Thanks for that Ian. I’ll be downloading the SPB Wireless Monitor over the weekend and having a look as well. Sounds like the SAMOLED Plus display is doing well in terms of power consumption, so NoLED should be a winner for anyone wanting a notification light.

      • Ian says

        Good luck! With Wireless Monitor, I found that as soon as I left the range of one of my WiFi hotspots, the WiFi Sharing service consumed insane amounts of CPU time, even though I hadn’t enabled sharing, and it continued to do so even after getting back into a hotspot area. I presume Wireless Monitor is using the service as it’s also recording WiFi traffic, and as soon as I uninstalled it, the problem went away. There are a few reports over on xda about WiFi Sharing going haywire, but not apparently to do with the Monitor. BTW there is a firmware upgrade for the GSII available via Kies, but the wretched program isn’t behaving itself for me ATM.

        • says

          That’s frustrating about Kies, have heard a few complaints about that. Which battery drainer app do you use to test consumption?

  4. Ian says

    I’m using Control Panel Pro to monitor CPU usage; it’s very good for counting up CPU usage over the last few hours or days. It looks like the latest firmware might have solved the WiFi Sharing problem, judging from xda comments; maybe I’ll give Odin a crack to update the firmware…

  5. Ian says

    “crack” in the context of “try” rather than some hacking shenanigans, of course.

  6. Ian says

    Found a curious feature of NoLED this morning – it looks like a GSII with the basic NoLED notification flashing and unanswered will exhaust the battery in about 2/3 of the time that it would otherwise take. This could be a problem if you leave the device unattended for a few hours. My best guess is that with my setup this would flatten it in 16 hours rather than 25. Probably only a real problem if you don’t leave your phone on charge overnight.

  7. Ian says

    I’m not that bothered by it yet, it’s more of an annoyance than anything else. The sound/vibration notification works fine, it’s just the email icon/line disappears from the notification bar/area after a while. I usually notice it in the morning after a few emails have been delivered overnight, so it’s possible it disappears after a few hours of being ignored. I’ll probably wait until 2.3.4 is out and I’m back from holiday before doing a rebuild, that’ll take a few hours!

  8. banditos says

    is it any software which can notify u with the bottom buttons flashing( menu or back button) , i think it would eat less power …

  9. Dennis Howard says

    Please someone tell me how ro download and find noled on a Galxy s. I’m new to this and am completely lost Thanks!

  10. Brian says

    There is a point of great irony – I downloaded that a while ago and enabled the proximity sensor (so it doesn’t show in your pocket) and at this point realised that actually when the proximity sensor is on it shows a faint red light next to the front camera which actually is enough of a notification led for me if only it could just flash that 😛

    • Chris Ward says

      Ha ha yes that is a good point Brian. Still puzzles me as to why such a simple function has been left out in the first place