General :: Auto Power On Android From Off State When Electricity Turned On?
May 31, 2014
I have made an Android based arcade machine that I want to sell to operators. They are accustomed to having an arcade machine boot up from one switch, and they also like to be able to leave that switch on so they can just turn on and off all machines with a surge protector switch or light switch. It doesn't seem possible to just have a simple binary ON/OFF switch for the K-R42, so I have to do it by having everything hooked up to a surge protector. Problem is that if I turn off the Android box by turning off the surge protector, I can't turn it back on that way. I'd like to find a way to have the Android device power on automatically from the off state when electricity is restored (sort of like the turn on after power failure option in Windows BIOS). I had read that this may be doable in the BOOTLOADER, is that true?
I have a Rikomagic MK802IV which uses HDMI as its primary output.
I'm looking for a way to detect that the screen attached to the HDMI out has been turned off, or is in sleep mode, either through a command-line tool or a Java app. So far, I've figured out how to detect whether there is something connected by checking the contents of this node in sysfs: /sys/class/display/display0.HDMI/connect
However, this only reports whether something is connected, not whether it's on or off.
I also tried using the isScreenOn() method in Android's PowerManager API to check the power on state, but it always returns true, regardless of whether the screen is on or off.
Does getting the external HDMI's power state is possible on Android?
i searched alot for this topic through Google will we have an app in the future that turns an Android device on/off automatically? especially in the new HTC devices as they have hibernate option.it is very necessary for sleeping at night and also for college lectures.
Im looking for a Android powered GSM phone that will automatically turn itself back on if the battery is dead and power is reconnected.
I want to stash this in my vintage automobile and use tracking software to locate the vehicle in the unfortunate event its stolen. The only issue I need to solve is if the battery dies and the phone turns off how to turn it back on automatically. I plan to put the device in the door panels so access will be difficult.
Any way to have a device automatically turn on when it is connected to AC from a power off state? My asus transformer already does this, but I'm not sure if there is a hardware requirement for this or if a system file can edited to enable it. I have another tablet (elocity A7+) that I want this feature for a car install.
I saw an Android tip that said "Use the power button to end a call", but it needed to be turned on in the Accessibility menu. When I got to Settings->Accessibility, it is grayed out and it says "Downloaded accessibility application is required to activate". What app do I need to download to enable this accessibility setting?
Okay, So I have my brightness set to max, I have power saving mode turned OFF, yet when the battery starts to die down, the phone INSISTS on automatically setting the brightness to a lower setting.Anyone else notice this, or is it just my phone? Again I have brightness set to max, power saving off yet when my battery level gets really low, the darn phone insists that the brightness should be less, and decreases it for me automatically.
First of all I am very pleased with the Droid (including the keyboard) and Android OS 2.0. Have been playing with it since december 13th and I especially love the texting app. In my home, Berkeley CA, it worked great, but now in Puerto Rico there seem to be some glitches. I turned off the auto delete messages because I prefer that. Not sure if its because I disabled the auto delete or because I am in Puerto Rico, but randomly when I go to my texting app, all my threads will be gone. This has happened to me twice now within a week.
just started 2 days ago, everything but my gmail contacts will sync. it's so bad that the battery dies in a matter of hours due to the constant sync. I turned off auto sync until somebody fixes this. just wondered if I am the only one
The flash on the camera. i know its a net smart phone but ffs why have 5 mpg without even a led flash the alarm function? maybe im missing something cos i haven't seen anyone else post and correct if im wrong but it doesn't have an auto power option? i hope im wrong and just haven't seen the option to auto power. also having to get the thing unlocked to put my old sim in and transfer the numbers is pretty shitty too.
Spent yesterday evening playing around with my new Hero...Pretty cool phone. One thing I do miss from my Blackberry is the automatic power on and off. I had it set to turn off at 11 PM and back on at 6:30 AM.
Maybe the Hero does it and I just havent figured out who to do it...Or maybe theres an app?
My Vibrant started shocking me today! At first it was just a shock here or there. I figured it was just because of static electricity, but as I went to pick it up a few minutes ago it wouldn't stop. It shocked me about 3-4 times very rapidly. Is this normal? It is plugged in via USB to my laptop. I'm still within the 2 week period, so I can go back and return it to Wal-Mart, but this is my 2nd vibrant I would be exchanging!
I have a compound UI component built up from a ViewGroup containing a number of TextView, ImageView etc. components. Many of these have StateListDrawables as their images/backgrounds. Is there any way of making them select from this drawable based on the state of the parent ViewGroup rather than the component itself? Ideally I want to be able to change the visual state of all children of the ViewGroup (text colour, image etc) based on the state of the ViewGroup, preferably without having to hook up complex logical code. This seems like a fairly common sort of requirement, so I was hoping it would be straightforward in Android - am I going to be disappointed?
I have a rooted Galaxy S3 with Android 4.1.2, and for some strange reason they've changed the screenshot combination away from the Power+VolDown that other Androids use to Power+Home which can't realistically be pressed one-handed. How can I change it back to Power+VolDown?
I'm a little confused by what I'm seeing with regards to phone state transitions via the PhoneStateListener. When I receive a call, this is what happens: (call comes in) RINGING -> IDLE (I pick up) OFFHOOK (I hang up) IDLE It's that first transition from RINGING to IDLE without any interaction from me (not ending the call, not answering the call) that confuses me. Do I really have to implement an idle counter to know that an incoming call has really ended? Seems like the reported phone state represents some sort of phone state that isn't the obvious one.Is this a bug or am I just not in tune with the paradigm here?
This is my first post and it comes with some questions:
First and foremost at random times my 3G is turned off even though I haven't turned it off...go into the setting and it says its still on. Only way to turn it back on is to turn it off and then turn it back on? Any ideas just a problem with the phone maybe. Didn't know if anyone has encountered this problem
Second is there and application that I can use that will let me select what things will startup with a reset of the phone? Also is there an easy way to reset the phone without a battery pull? I just like to do this when Unistalling apps and installing apps...always seems faster after downloading or Unistalling after I do this.
my phone is karbon A9+ and i wiped the cash,system and data and after that flashed a Custom ROM ! but now the phone just power on in download mode!! how to power on, for recovery or normal power on ! the phone just have the black screen with "Entry QPTS Downloading" Text..i will back to India 5 month later ! can it be fixed or i have to wait for 5 month to come back and send it to service !
Back when the Evo first came out, it was possible to turn off the Sense UI and use the stock Android. This option was deleted after the first update. Does anyone know if the option has been restored with the Froyo update?
Since 3 years I had upgraded my Android 2.1 Flytouch 10.1 Tablet into Flytouch 2.2. #3245 version, without any major problems.
My only problem was that I was not able to use Titanium back up and some other apps unless I was rooted, so after many attempts.I succeeded to root it and to be able to use it. Until the time I decided to upgrade my BusyBox to the latest version. After that I rebooted.my tablet with success but only for once because since then it freezes at start up.
I'm trying to limit my mobile data usage with out jumping through hoops.
I'm looking for a widget, that with one click of a button, it can restrict background data, disable auto-sync and enable mobile data, and when pressed again, enable WiFi, disable background restriction and enable auto-sync.
This function, no matter how trivial, would save time and effort.
Is there anything like this out there? Would something like this require root?
I have recently Bought an S9300 phone and when received all was working OK. And I was really happy with the phone. BTW the phone runs on Android 4.1.1 OS (MTK6577).After a week I started experiencing problems with the camera and gallery. The seller instructed me to reset factory settings. This didn't work.
Then he sent me the firmware so that I would Upgrade it. This has been done but know, after upgrading firmware, when I turn my phone on all I get is a blank white screen. Although the hardware seems to be responding to button commands, the blank white screen persists.
To Upgrade the firmware I used the Smart Phone Flash Tool.
Yesterday I've upgraded my Alcatel OT-997, ICS 4.0.4. with Kuano's TWRP and now it's:
Alcatel OT-997D, JB 4.1.1. - (details in this thread, 5th post) [URL] D means I can now use two SIM cards, which is cool.
The problem is the damn thing doesn't charge when it's turned on. It shows the lightning bolt over the battery icon, but in settings shows that charger is not connected. However, when it's turned off it charges, normally. I tried different settings in USB menu: Mass storage, MTP, Camera mode and Charge. Tried with and without Debugging mode. All of those work when connected to a computer in the sense that I can use internal storage, access both SD cards, and so on. But it doesn't charge.
I have tried 3 different cables, 3 wall outlets, and 2 PCs so it's not that. I suppose it's not a hardware problem otherwise it wouldn't charge properly when it's turned off.
So now I use schedule to turn it off before I go to sleep, and to turn on before I wake up, so it would charge while I'm sleeping.