Alarm clock does not work when the phone is off?Support


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  1. mystvearn

    mystvearn Well-Known Member

    I set two alarms, turn off the phone, waited, nothing happened. Did it when the phone was on, alarm went off. Did it in flight mode, alarm went off. So the alarm can't resurrect the phone when its off completely or is it just me?

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  2. daivik

    daivik Well-Known Member

    No it can't. Not many standard electronics can just turn them selves on.

    If it's off, there is no power, so the phone doesn't even know what time it is, let alone if an alarm is running. Don't even think all PCs can turn themselves on at a certain time.
  3. icehot666

    icehot666 Member

    I don't know any smart phone that can do that, my mrs iphone can't do it I know that much...
    Rajiev likes this.
  4. ludlum

    ludlum Well-Known Member

    An app that could turn on the phone (and activate the alarm) from cold would be nice. This would help those who like to leave their phone off at night.
  5. mystvearn

    mystvearn Well-Known Member

    I see. No idea, first time owning a smartphone. My previous nokia and SE phones can turn itself on just for the alarm to sound and shuts itself again
  6. Gearu

    Gearu Well-Known Member

    My LG KC910 (Renoir) turns itself on for alarm, and am disappointed (and am glad it's being confirmed here) my SII doesn't do this, thought all phones would do it.
    I don't like leaving my phone on at night as I don't want to be woken by a call (let alone by the random girls that have been calling me from india, feels like people at the three call centre have been matching up my profile with their unmarried daughter lol), but for me the SII almost compensates for this by letting you kill the data transfer and phone operator connections.
  7. daivik

    daivik Well-Known Member

    why d'you not just put it one non-vibrate silent??
  8. mystvearn

    mystvearn Well-Known Member

    Same like Gearu, when I sleep I turn off my phone. I am now putting it in flight mode. Does anyone know a flight mode app/widget? The way I know of placing it in flight mode is by pressing the power button for few secs. This is the first phone I own which does not turn on for the alarm and something new for me.
    Rajiev likes this.
  9. Rajiev

    Rajiev Member


    Hope you are kidding. Cos your reply couldn't be more technically wrong :p

    Most of the devices CAN turn them self on. Its a "NEW" technology called standby :p

    Most phones, including smart phones can turn them self on a specific time. Thats how they can perform automatic turn on/off and can sound the alarm when they are off.

    This IS a limitation of SGS 2. Being the best smart-phone yet is not a excuse for that :D

    Simple workaround:

    Use Flight Mode
  10. planetf1

    planetf1 Active Member

    It's a silly omission. Nokia's symbian phones and N900 maemo phone could both do it. Another omission is no LED message indication. Still otherwise the phone is fantastic...

    That being said I charge my phone nightly anyway, so just leave it on now.

    There's a tool in the market "tasker" that is useful (if a little geeky) which can automatically switch the phone to flight (or silent) mode overnight & back again in the morning based on time, location etc.
  11. Twinn

    Twinn Well-Known Member

  12. Slug

    Slug Check six! Moderator

    And the HTC Desire Z. And the HTC Hero. And every other Android handset on the market that I'm aware of.
  13. matttye

    matttye Well-Known Member

    Standby is not the same as "OFF"

    Try setting an alarm on your average dumb phone that usually wakes up for the alarm, then remove the battery from it and put it back in.

    I guarantee it won't work. That's because when you "shut down" those phones they actually go into a sleep/standby mode like you said; so if you actually remove the battery you get a true power off.

    Alarms that turn the phones on are simply illusions.
    Vinnydude likes this.
  14. Hawker

    Hawker Well-Known Member

    I agree, for these phones to be able to turn on the alarm when they are "off", they must be drawing power of some description to be able to compare the time against its alarms, but the power they draw are absolutely minuscule. I had an old unused nokia which I didnt turn on for months, and there was still plenty of battery left in it when I turned it on.

    Its a nice feature to have and its a shame "smartphones" dont have it.
  15. KTP

    KTP Well-Known Member

    if you want to turn off your phone, you could always get an alarm clock.

    problem solved :D
  16. matttye

    matttye Well-Known Member

    It's probably because smartphones use more power. More RAM, faster processors, etc. There'd be more of a drain on the battery just because of the components used.
  17. loony

    loony Well-Known Member

    i still have nokia5800. that will turn on, so i use that for my alarm clock....has a better wake sound too! lol
  18. Shotgun84

    Shotgun84 Well-Known Member

    Funny you should say that. You have to be rooted but "No Moar Powah" turns you're phone on just before the alarm goes off.
  19. lotus49

    lotus49 Well-Known Member

    I don't know why anyone would ever turn off their phone except when they are on a flight and taking off or landing.

    If you want an alarm clock but don't want calls or email alerts to wake you up, just turn the phone into flight mode while it's charging overnight. The battery life pretty much requires that you charge the phone overnight anyway so what's the big deal?
  20. kayne5

    kayne5 Well-Known Member

    My old Nokia e71 (smartphone) can alarm while off... I'm lucky I put extra alarm on it, cause this time I charged my SGS2 switched off... and of course, no alarm. That's disappointing.
  21. atmasters

    atmasters Well-Known Member

    I have to agree with most on here when they say put your phone in airplane mode and use your alarm. What is the big deal if your old phone can wake up for the alarm. I think it is not fully off if that's happening anyways.
  22. Riche101

    Riche101 VIP Member VIP Member

    I use it all the time its a great app
  23. Ashcancell

    Ashcancell New Member

    So, first of all, if I don't turn my phone off at night, the performance is greatly diminished the next day, until I turn the phone off and back on again. Does simply putting it into airplane mode fix this? Because if it doesn't, then airplane mode won't help at all.

    Second, like most everyone else, my older, less intelligent phones could do this. While I realize that we all should probably just get over that and move on, the fact that this particular part of the technology seems to have gone backwards is very frustrating, especially for those of us who have relied on cell phone alarms for many years and who are susceptible to losing travel alarms while on the go. Having this feature on a phone continues the line of thought that everything you need (barring food and water) is in one place, and this oversight still seems strange to me.

    Third, in regards to the standby vs. off thing: honestly, nobody cares what the "official" terms for the phenomenon is, so long as we can have our alarms still go off and not lose all of our battery life. For me personally, I would like to get that alarm feature back without killing my battery at night and while still gaining the advantage of turning my phone off so it functions correctly the next day. If, while is "standby" mode, I can get that effect, it doesn't really matter exactly what is happening inside the phone.

    Lastly, if the "standby" option won't work for smart phones because of their increased resemblance to computers (more power, RAM, faster processing, etc.) why can't most of the phone be shut down, leaving just the clock on and a command that turns the phone on when it reaches a certain time?

    As an post script, how does one root their phone? I have searched and can't find a description on how to do this. Thanks :)
  24. matttye

    matttye Well-Known Member

    Samsung under clocks the processor when the screen is off, so if you put the phone in aeroplane mode and turn the screen off it shouldn't use much power through the night.

    Why not just charge your phone through the night and have full battery when you wake up?

    The difference between these phones and your "less intelligent phones" is that the less intelligent ones could last for days on a single charge anyway. Smartphones can't.

    As for rooting, have a look in the "all things root" subforum on here, it has a comprehensive guide.
  25. shu48

    shu48 New Member


    I couldn't agree more. All my old Samsung phones would switch on and sound the alarm. My old XDA orbit and orbit 2 both did this and they were old smartphones, running windows mobile. So anyway they did know what time it was when they were switched off.

    I am new to Android and very surprised that android phones don't do this. It is particularly useful when you know that you don't have much battery left when you go to sleep and want to be sure that the alarm will go off and wake you up, instead of the battery going flat while you sleep. Would be nice if they did this. Especially as all the phones I've had over the last 10 yrs or more have been capable of it.

    I am currently (as I type) waiting for my android phone to charge before I can go to bed because otherwise I might not get up at the time I need to be up in the morning.
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