Hi all
Firstly, let me just say I love the Hero.
Although I really can't believe I need to keep my phone switched on for the alarm to work? Even my Nokia banana phone had a blummin' alarm that worked when the phone was off! It seems that the Hero needs to be powered on or the alarm won't sound.
Am I missing something?
This feature was very common, pre-smartphone, but I think you'll find the vast majority of what we now call smartphones (WinMo-based, iPhone, Android etc) don't actually support this any more as they are really little computers with phone functionality. It also wasn't that long ago when my phones battery used to last 10+ days on standby, but then again it didn't even do 1% of what my Hero can do - it's the price we pay for progress.
I believe many Symbian based phones do still allow this, since an alarm clock is essentially built into the "BIOS" of the device itself.
Please don't take any of this as gospel though.
Regards,
Dave
Do you mean when the phone has the screen switched off (short press of power button), or completely shut down (press and hold power, then select power off)? If the latter, then as above this is effectively like shutting a computer down, it is completely asleep. If the former it should work fine.
ewans said:
Do you mean when the phone has the screen switched off (short press of power button), or completely shut down (press and hold power, then select power off)? If the latter, then as above this is effectively like shutting a computer down, it is completely asleep. If the former it should work fine.
Click to expand...
Click to collapse
I'm pretty sure he means completely shut down...
My girlfriend had a Siemens SL55 some years ago, and it moved with us in a box from appartment to house, and then suddenly one day it sounded an alarm!!!!
2 years earlier she had put a reminder for an anniversary in her calendar
foxmeister said:
This feature was very common, pre-smartphone, but I think you'll find the vast majority of what we now call smartphones (WinMo-based, iPhone, Android etc) don't actually support this any more as they are really little computers with phone functionality. It also wasn't that long ago when my phones battery used to last 10+ days on standby, but then again it didn't even do 1% of what my Hero can do - it's the price we pay for progress.
I believe many Symbian based phones do still allow this, since an alarm clock is essentially built into the "BIOS" of the device itself.
Please don't take any of this as gospel though.
Regards,
Dave
Click to expand...
Click to collapse
So effectively when you forgot to connect Your phone to the charger before going to sleep you might be late for work in the morning? Thats not a very SMART phone, is it?
From what I know devices like the Hero also have bios and it is far much more sophisticated than old Nokias. Also the Hero doesnt turn off when the battery is completely empty so it would have some juice to sound an alarm. When You turn the phone back on, it remembers the date and time so the clock is running when its switched off. IMO this is just the developers being lazy - thats all
I would imagine that this can be a deal-breaker feature for some. Unfortunately its not included in the phone specs and most people (including me) would be 100% sure that it would wake them up when turned off. AFAIK all Nokia symbians have this.
stingerpl said:
So effectively when you forgot to connect Your phone to the charger before going to sleep you might be late for work in the morning? Thats not a very SMART phone, is it?
Click to expand...
Click to collapse
Erhhh - no, it's not a very SMART user!
Regards,
Dave
If you honestly bought an HTC Hero in order to have an alarm clock you might wanna consider selling it again...
Just put the phone in flight mode and set the alarm...
My recurring alarm didn't go off this morning, very late for work....
Prille said:
Just put the phone in flight mode and set the alarm...
Click to expand...
Click to collapse
What does flight mode do exactly?
ritdaw said:
My recurring alarm didn't go off this morning, very late for work....
Click to expand...
Click to collapse
Are you using a task manager to kill processes? If it kills the clock the alarm won't go off.
frandavid100 said:
What does flight mode do exactly?
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Click to collapse
Flight mode turns off all radio receiving and transmission on the phone.
Basically when turning flight mode on your left with a PDA without the phone part.
Thanks dude.
I have to say it is a pain that the alarm will not wake even the handset! All nokia's still do this, come to think of it is only HTC handsets & iphone (i think) that will not sound the alarm when the phone is off....
Simple things like this wouldbe so easy to implement. Oh well.
Prille said:
If you honestly bought an HTC Hero in order to have an alarm clock you might wanna consider selling it again...
Click to expand...
Click to collapse
I expected that the Hero will sustain the basic features of traditional phones that most people treat as a given default and I just simply don't agree that it's impossible or hard to implement. Thats all.
I didnt buy the Hero for the alarm clock but it seems like I would have to consider buying a separate alarm clock just in case
stingerpl said:
I expected that the Hero will sustain the basic features of traditional phones that most people treat as a given...
Click to expand...
Click to collapse
Unfortunately, as Android is still a very young OS you can't take anything for granted....like the bluetooth!
stingerpl said:
it seems like I would have to consider buying a separate alarm clock just in case
Click to expand...
Click to collapse
maybe that would be a good idea....In my experience, most mobile phones are too darn quiet to wake me up anyway!!
It should be said that this is going to be more a function of the hardware, than the software. For those phones that do this, there is essentially a hardware timer that the overlying OS will program that switches on the device (effectively part of the system clock) when a particular time is reached. If the Hero has the necessary hardware, it should be possible to do this, but it would definitely require OS support since Android abstracts out the hardware so that applications can't reach it directly (except for NDK apps anyway).
Regards,
Dave
ewans said:
Are you using a task manager to kill processes? If it kills the clock the alarm won't go off.
Click to expand...
Click to collapse
Yes, but I don't close all of the apps. I close stuff manually. Perhaps I did close it on that day. Maybe I need to put it in the ignore list just incase!
Can confirm this is a bug
This is a bug, but I havent tracked down exactly what causes it.
When switched off, I mean the screen is switched off, not the whole phone.
When I go the phone on Thursday, I set the alarm for Monday through to Friday, 10.30am.
Friday morning, the phone wakes and the alarm goes off at 10.30. Fine.
Monday morning, nothing happens. Go into the settings, check alarm set for the correct time and day.
Tuesday morning, works fine, phone wakes and alarm goes off at 10.30, fine.
This morning, nothing.
My other phone alarm wakes me at 10.34. I switch on the Hero's screen, and immediately the alarm goes off, 4 minutes late!
Will try to see if it is because I wasnt in the home screen when it was switched off, or because it was a recurring alarm, or because it was charging.
Nonetheless this is a bug. Worked fine on my older phones, including several WinMo.
I will see if there is an Android alarm clock app available, and if it has the same problems.
graculusthegreenbird said:
When switched off, I mean the screen is switched off, not the whole phone.
Click to expand...
Click to collapse
This is a different issue to the one being discussed here. We are talking about when the phone is shutdown completely.
Regards,
Dave
OK, apologies. I wouldnt expect anything to happen when my phone is switched off.
Related
Hello
I got my HTC HD2 recently but I am really puzzled why and how they put such an inconvenient clock.
Is it anybody here who can solve my problem.I just want a clock which will work even when device is powered off, like any cell phone.
Thanks
Dane
If the device is powered off, then the display will be too, how will you see the clock?
I think what he means is he wants the phone to switch on the when the alarm time comes round. Sounds simple. But as it was explained to me that requires a separate device to be built into the handset that operates as a clock independant of the phone functions. Sadly the HD2 uses a software device which switches off with the rest of the phone features.
Nokias do it. But then nokias dont do the things the HD2 does. Its a trade off. Get an alarm clock from your local market for £3.99. Or a watch.
clock
well,no matter if the display is shut down when time is set then the display turns on and you see the desired time while alarm is snoozing.When you dismiss display turns off.
Thats how it works in all cell phones.
Is there any computer geek who could fix that missing feature?
Thanks
Ok, seems i misunderstood you. When I press my power button, the screen comes on, and a clock is on my lock screen, so I see the time. Just like that.
No way to bypass that software?Switching off everything but the clock?
nope. the clock requires winmo to be active and running to operate.
And no way to mix with winmo?
If the next winmo7 works like that I wont get it
Thanks
Why not just leave the phone on and put it on silent, you will still hear the alarm and the display will light up whilst the alarm goes off.
wow, one little feature, most of us didn't even realize that some cellphones had would turn you off of WinMo forever??? Wow...
And to think, I've been making due with a little battery powered alarm clock for the last 15 years....
i knew it was missing. i check all my phones for it. i miss it. but its not a deal breaker. actually its been some years since i had a phone that did it. still miss it though.
-Nitrous- said:
Why not just leave the phone on and put it on silent, you will still hear the alarm and the display will light up whilst the alarm goes off.
Click to expand...
Click to collapse
Yes I know but there is still these wave lenghts...My cell phone is not very far from me, less than one yard, when I sleep.If I let it on within a few time I'll begin to feel some dizziness....
nrfitchett4 said:
wow, one little feature, most of us didn't even realize that some cellphones had would turn you off of WinMo forever??? Wow...
And to think, I've been making due with a little battery powered alarm clock for the last 15 years....
Click to expand...
Click to collapse
you see never too late
Have you thought of trying one of these? How can you be dizzy when you are asleep?
danejean said:
Yes I know but there is still these wave lenghts...My cell phone is not very far from me, less than one yard, when I sleep.If I let it on within a few time I'll begin to feel some dizziness....
Click to expand...
Click to collapse
whiskey tango foxtrot? i... i... i just don't know what the... uh... seriously dude? don a damn tin foil hat. i doubt you're getting dizzy from the "wave lengths" that your cell phone is emitting.
im getting dizzy from reading some of these threads.......
Yes I know but there is still these wave lenghts...My cell phone is not very far from me, less than one yard, when I sleep.If I let it on within a few time I'll begin to feel some dizziness....
Click to expand...
Click to collapse
Just put the phone in Flight Mode
I am also surprised phones do not 'wake up' with alarm when turned off..
I still use my old ****ty phones (Sony ericsson, nokias) as alarm clocks, coz they are so loud and so good and never fail to wake up.
HTC never got their clocks/alarm system working on their phones, its a real pity. I dont trust my HTC as an alarm clock
Right now, im having a clock problem, the phone keeps changing the time by itself, always adding 2 hours... its a real pain... need to find a solutioin to this.
Outstanding!
freedirk said:
Have you thought of trying one of these? How can you be dizzy when you are asleep?
Click to expand...
Click to collapse
Hello and sorry about this question but i cant find the solution!!!
I have CM7 in me legend,the problem i have is i must leave me cell phone turn on in the night if i turn off the cell the alarm dosnt work!!!!
Any ideas?
thanks a lot !!!
Even with Sense, it's not supposed to work while off.
Yeah. You can't drive your car while it's "turned off" right? Guys, please engage some brain before posting...
Sent from my HTC Legend
I can understand why you believe it works while off if you're coming from 2006+ish dumbphones. But unfortunately, this is not the case for most Android phones.
Sent from my HTC Legend using XDA App
BlaY0 said:
Yeah. You can't drive your car while it's "turned off" right? Guys, please engage some brain before posting...
Sent from my HTC Legend
Click to expand...
Click to collapse
This is me first phone i need turn on all the night to the alamr work,all me cell phone turn off and the alamr work
i have brain man,if u dont know o dont wanna answer is ok,but this answer dont like me,sorry with me english and thanks again
This actually is not a phone but rather a computer just like one you had 5 years ago under your desk except it also has phone ability.
Now set alarm on your desktop comp in Windows and then turn comp off. I can imagine that alarm won't go on if the system that alarm is part of is turned off! Right?
And why do you even need to turn it off during the night? Leave it on! Are you also turning off your fridge during the nigh?
Sent from my HTC Legend
Blay0 is pretty much straight to the point, You cant really do it as the phone needs to be in standby at least for it to wake up..When/if it's finished the 2.3.3 with sense 2.1 (Alpha at the mo) has a hibernate mode which will let you do exactly that.If you are a developer you could always help with the port..Otherwise, sell your legend and buy an old Nokia 6600
I presume you turn it off because of battery life or something.
So just leave it plugged in, on a bed-side table next to you
Hmm, I always thought that hibernation in computer world is just saving active RAM pages to some kind of storage and turn the device off. After next powe on cycle those pages are restored back from storage to RAM and you en up with the system like just before "hibernation". That doesn't mean that alarm would work in this situation.
The most power effective scenario for the night is flight mode + sleep... it should drain at most 1 or 2% of your battery.
Sent from my HTC Legend
I have a good one for anyone, I have a Evo3D which I am going to do all those wicked things to.. but last night or rather this am around 645. this Evo turned its self on and set off a alarm in which I had never set. when I was trying to shut off the alarm it started clicking away at the camera.. but there is no sd card in it, so it did not save them. and I had to pull the battery to shut the cell off again. the button on the top would not function the cell. this was a very strange occurrence while I was 3/4 asleep.. the cell is not activated and its banded sprint.. has anyone ever heard of this before? I have currently taken the battery out of the cell in case of ghostly occurrences.
tashsru said:
I have a good one for anyone, I have a Evo3D which I am going to do all those wicked things to.. but last night or rather this am around 645. this Evo turned its self on and set off a alarm in which I had never set. when I was trying to shut off the alarm it started clicking away at the camera.. but there is no sd card in it, so it did not save them. and I had to pull the battery to shut the cell off again. the button on the top would not function the cell. this was a very strange occurrence while I was 3/4 asleep.. the cell is not activated and its banded sprint.. has anyone ever heard of this before? I have currently taken the battery out of the cell in case of ghostly occurrences.
Click to expand...
Click to collapse
never heard of anything like this .. if the cell isnt activated, then nobody could be remotely controlling it via the cell radio.
was it connected via wifi?
is the device internal memory write protection unlocked? rooted? are you running any type of custom ROM or software on the device?
sure sounds like a very odd occurance .. my only guess would be maybe you were a bit sleepy?
No this thing is stock.. and I'm not the only one who heard the alarm. my partner who was in bed with me heard it also.. and this morning we both said how freakin weird..
Are you sure the phone wasnt just in sleep mode. I cant see how the phone would turn on by itself. That would be the best invention ever.
ok here is the thing, I had taken the battery out and put it back in, and never turned the cell on. it was just laying there waiting for me to decide what to do to it.. IE root, rom mgr etc. When the damn thing just did this.. a self starting phone that rang the alarm at 645 am.. and when I picked it up the camera started acting wacky and I had to pull the battery to shut it back off.. weird huh.
Whatever you are smoking, you should probably share.
Weird
That does sound a little crazy......was alcohol involved
Record it!
schmeggy929 said:
Are you sure the phone wasnt just in sleep mode. I cant see how the phone would turn on by itself. That would be the best invention ever.
Click to expand...
Click to collapse
would be the best invention? LOL My old phone Moto ROKR E6 have that ability. You know the phone was released in 2006.
heres the follow up. HTC whom i contacted said " that the on off button and the hardware in the notifications for the alarm was in a stuck loop meaning that it needs repaired . so its still under warranty and is on its way back to them. hopefully it will be fixed and returned. that they have seen this on this model. Im glad someone knew what the world is up.
oh and also i'm sorry I was not smoking anything, isn't my style.. sorry
I just got my DNA recently - loving it so far. I haven't done any tweaking / rooting, etc... I've had 1 recurring issue which I can find NO information on.
Once a day, at seemingly random times, the DNA will just start ringing, endlessly. The volume on the ring is always very soft (whether volume is on max, silent, or vibrate), however it never ends unless I reboot. I've force killed every possible running application, but still it keeps going.
There are no alarms set, no calls coming in, no other notifications. While I reboot to stop the ringing, the ringing continues until the power completely drops (through the shutting down splash screens).
Any troubleshooting ideas? Anyone else experience this?
cant say that i have experienced this. havent heard anyone else complain of it either. But flashing a new kernel aand rom will likely solve the problem.
Sounds like the internal overheat alarm. Your phones defective go exchange it
Sent from my HTC Droid DNA
x4sper said:
Sounds like the internal overheat alarm. Your phones defective go exchange it
Sent from my HTC Droid DNA
Click to expand...
Click to collapse
Thanks x4sper. That was my initial guess. When it does start, it is a bit warm, but nothing more-so than a heavy gaming spree would do. Are there any apps not requiring root that would show temperature statistics?
dmk9870 said:
Thanks x4sper. That was my initial guess. When it does start, it is a bit warm, but nothing more-so than a heavy gaming spree would do. Are there any apps not requiring root that would show temperature statistics?
Click to expand...
Click to collapse
Elixer 2 try that app
Sent from my HTC6435LVW using xda premium
most of the battery widgets in the market have temp monitoring.
Don't check m8, GO exchange it, take advantage of your warranty while you can. Maybe you install one "wrong" app and they send you an invoice or something. Seriously, I don't know what kind of insurance you're on, around here lately they started the "no-matter-what" so even stolen, you broke it, they broke it, it broke by itself you're covered. If you don't have something like that don't take any chances.
And yes, it's most probably the temperature alarm.
Sent from my Optimus 2X using xda premium
Not battery temp alarm
crossmission said:
Don't check m8, GO exchange it, take advantage of your warranty while you can. Maybe you install one "wrong" app and they send you an invoice or something. Seriously, I don't know what kind of insurance you're on, around here lately they started the "no-matter-what" so even stolen, you broke it, they broke it, it broke by itself you're covered. If you don't have something like that don't take any chances.
And yes, it's most probably the temperature alarm.
Sent from my Optimus 2X using xda premium
Click to expand...
Click to collapse
This just happened to me yesterday. First I thought it was the battery temp alarm too, but my battery was only about 85 degrees. After searching the phone, and the services and the apps running, nothing would stop it. Even when I turned it off and back on, it still did it. It took a battery sim-pull for me to get it to stop.
I have a Droid DNA, and after searching, it does seem to affect other phones (at least other Droid phones)
I then did a little searching ... here are two links that helped (I think)-- I can't post links yet but i'll try to mal-form them and you can put them back together
A site: rootzwiki.com / topic / 38658-droid-dna-constantly-ringing
A site: w w w. droidxforums.com / forum / droid-x-help / 26013-droid-x-constantly-ringing.html
So, (at least in my case) the 'roaming alarm' seems to be the cause of it. I was down in my work's basement in the lab-- very poor reception. I'm pretty sure my phone switched to roaming (it's usually 1x with barely 1 bar down there). I do have the 'roam alarm' checked on in the settings.
However, what I don't get, is why it would not stop-- even after I was a full 5 bars (3g-- work repeaters don't repeat lte).
Anyway, I hope this helps...
Mr-Homer said:
This just happened to me yesterday. First I thought it was the battery temp alarm too, but my battery was only about 85 degrees. After searching the phone, and the services and the apps running, nothing would stop it. Even when I turned it off and back on, it still did it. It took a battery sim-pull for me to get it to stop.
I have a Droid DNA, and after searching, it does seem to affect other phones (at least other Droid phones)
I then did a little searching ... here are two links that helped (I think)-- I can't post links yet but i'll try to mal-form them and you can put them back together
A site: rootzwiki.com / topic / 38658-droid-dna-constantly-ringing
A site: w w w. droidxforums.com / forum / droid-x-help / 26013-droid-x-constantly-ringing.html
So, (at least in my case) the 'roaming alarm' seems to be the cause of it. I was down in my work's basement in the lab-- very poor reception. I'm pretty sure my phone switched to roaming (it's usually 1x with barely 1 bar down there). I do have the 'roam alarm' checked on in the settings.
However, what I don't get, is why it would not stop-- even after I was a full 5 bars (3g-- work repeaters don't repeat lte).
Anyway, I hope this helps...
Click to expand...
Click to collapse
Mine did that the other day while on the charger. It started before I woke up and continued until I made a call some 20 minutes later. One thing I discovered was all the sound options were grayed out. While it was making the noise I put it on vibrate. I also had a Verizon tech on another phone, he had no clue. He also contacted HTC, they never heard of such a thing. Go figure. For what it's worth This unit is rooted s-off and on .stock 204. This is my 2nd unit, the first one also did it when on Viper. I have seen of several instances of this happening as noted in other forums. My guess is a software programming issue in the base rom.
EDIT :
I contacted HTC there is NO overheat alarm in the unit. If it overheats it will shut down!!!
RLGL said:
Mine did that the other day while on the charger. It started before I woke up and continued until I made a call some 20 minutes later. One thing I discovered was all the sound options were grayed out. While it was making the noise I put it on vibrate. I also had a Verizon tech on another phone, he had no clue. He also contacted HTC, they never heard of such a thing. Go figure. For what it's worth This unit is rooted s-off and on .stock 204. This is my 2nd unit, the first one also did it when on Viper. I have seen of several instances of this happening as noted in other forums. My guess is a software programming issue in the base rom.
EDIT :
I contacted HTC there is NO overheat alarm in the unit. If it overheats it will shut down!!!
Click to expand...
Click to collapse
FWIW, mine is stock rom -- not rooted.
Just had this happen to me. Full battery, full 4g reception, and not running anything! I did a restart and gone for now.
Sent from my HTC6435LVW using xda app-developers app
Unknown cause - only restart stops it
I have the same problem and posted in another thread, but this ringing sound is not related to overheating, roaming or anything else as far as I can tell. It's happened at least 6 or more times over the last several months. I do know that if you have your buds in and it starts chirping it is a full volume blast even though the media volume is turned way down. I had that experience yesterday while at work. While listening to music I still need to hear the paging system so my music is faint, but the ringing went straight through my head from ear to ear. Battery temperature was 86 F degrees, wasn't roaming, didn't have any alarms or alerts set, nothing on the notification bar and the ring sound is not one I can pick from any list. The only way to stop it is to restart the phone. Damned annoying!
I'm hoping that the future Verizon update for my DNA (Sense 5 and a more current Android version) will fix the problem. Someday the handset manufacturers will be able to incorporate an adaptive radio that can cover a range of say 400 Mhz to 5 Ghz and we'll just work with one radio to cover all our needs and connect with any friendly source. If we had that today I'd have a HTC One in my pocket.
jonesin said:
cant say that i have experienced this. havent heard anyone else complain of it either. But flashing a new kernel aand rom will likely solve the problem.
Click to expand...
Click to collapse
It will do this no mater what ROM or stock
x4sper said:
Sounds like the internal overheat alarm. Your phones defective go exchange it
Sent from my HTC Droid DNA
Click to expand...
Click to collapse
Phone not defective, neither Verizon or HTC have a clue what is happening. There is no overheat alarm on the unit, it will shut down when too hot.
Okay, I'm new, and I searched...but didn't see anything pertaining to this.
So I hope it's okay to create a new thread.
I just got a Certified Like-New Replacement HTC Rezound from Verizon after having so many problems with the Thunderbolt that I demanded a new device. Enter the Rezound.
The replacement is fairly nice. I'm enjoying ICS and it doesn't have the issues the Tbolt did.
However.
My long-term alarms don't have any sound. If I go to bed at midnight and set the alarm for 8am, confirm it's checked and it says "This alarm is set for 8 hours from now." At 8:02am someone else in the house wakes me up and I look at the phone and it has the screen as if the alarm were going off, but it is not making a sound. I have checked alarm volume and made sure it is up. Just for kicks, I also make sure I leave the ringer up all night so that it's not on silent/vibrate. It is on the charger, for what it's worth - and my Tbolt charger, since the Rezound did not come with one.
I tested the alarm myself a few times by setting it for 5 minutes in the future. It works fine, on and off the charger. 10 minutes, still fine. It just seems to be the ones that are 6 hours or 10 hours in the future...they will not make a sound if the phone has been idle all night. A friend of mine thinks it has to do with the phone going into a deeper sleep overnight. Not sure. All I know is I'm doing exactly what I did on the Tbolt and the alarm was one of the few things that worked right.
Now I'm in this predicament. Anyone else had this issue, or know what to try?
I'd like to avoid a hard factory reset if I can. Those suck.
I have no taskkillers running. The only questionable apps I have so far are Lookout (I like the missing device function) and maybe Astro.
Everything else is pretty vanilla. I don't have any "Lol Free Timer" apps, etc.
Also while we're at it, my GPS is weak. All 3 services: standalone, VZW, and Google are enabled. GPS is turned on. I can even see the dish icon flickering in the taskbar. But after 10 seconds in Maps, it will say Your location is temporarily unavailable - if I'm under any kind of cover. My car, any type of building...even in my home where I sit next to my mother who also has a Rezound (brand new as of August) and hers works fine. In the open air, mine will work too. But by comparison with my mom's Rezound...mine is significantly weaker.
Just to recap...
- My alarm makes no sound when it's an alarm that is set for a later time in the amount of several hours
- Ringer, media, and alarm volume are all up
- No task killers
- Works fine if it's set just for a few minutes in the future
- GPS is weak.
Anyone have any magical fixes to this, perhaps? I'd hate to have to get a new device.
Hopefully I've been descriptive enough here to not be too noobish
Thanks folks.
Very nice and descriptive post. I like the summary at the end.
Unfortunately, I don't have any solutions for you.
Your alarm issue may have something to do with being in dock mode or power saver/sleep mode. See if the alarms sound if you keep it on a regular wall charger. Only possible fix I could think for GPS would be ruu. Flash the global leak or the ics update before that if you havent already. Not guaranteed to fix it though. Good descriptive post, but are you rooted and what version OS are you on would be helpful as well in the future.
Sent from my ADR6425LVW using xda app-developers app