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[Q] Screen turning on randomly

I've had the phone for a week without this happening, but yesterday when I went to check out the locations app it gave me some GPS error which I fixed up, but then decided I didn't want to use the app so I disabled the GPS satellite and dock feature when plugging in the phone for charging. Last night I realised this was happening a few times so I shrugged it off and just reset the phone which seemed to work for a bit, but then after leaving the phone on lock all night with no wi-fi, bluetooth, GPS or anything, I wake up to see the phone, after 8 hours of standby, to be at about 10% battery. Right now it's on charge, and a couple of minutes ago without touching it the screen turned on for exactly 1 minute.
At first I thought it was because of the locations app, but this doesn't seem to be the case since I force stopped it and it's still doing this.
What could be causing this? It's not that big of a hinderance, but when the phone quickly drains itself of battery because of it gets a bit annoying. Should I just wait it out for the android 2.4 update and hope it fixes itself? I was thinking of rooting the phone and going on from there to see if there's a method that'll fix it, but with the update coming in a couple of months I'd rather refrain from it (even though I have no idea what rooting would do in this situation).
e: locations seemed to have started itself up again. I think it IS the application doing this.

Boomey said:
I've had the phone.
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Oh magic all knowing 8ball, what phone does he have?
*shakes magic 8ball*
*8ball glows and shows letters*
Plug your Moto RAZR into your computer, install android sdk, use adb logcat to read out the log files.
When your screen turns on again there will be some indication who requested your phone to wake up.
Sorry disregard that post. The Moto RAZR doesn't run android, so this can't be the solution...

I posted that in the HTC Desire HD Q&A forum, no idea why it was moved when it's a question about the phone. :\
But yeah, HTC Desire HD. I half expect no solution but I can still be hopeful.

In that case my suggested approach with adb logcat would work .

seems to be really very complicated and understand how to use the method. sorry im newbie

Not really there is a ****load of tutorial on the net how to install the android sdk.
Just use google.

Random reboot temporary fix?

So i've had random reboots starting on my phone recently and was thinking about ordering a replacement phone through LG here soon.
However, after speaking with a T-Mobile rep, they advised me that after hearing complaints about it, they've found (or heard of) a temporary fix for it, and it has seemed to stop MY random reboots too.
They're saying theres an issue with the software and the GPS crashing, a tmobile rep told me to just try and turn off the GPS option in the settings and, ONLY turn it on if its REALLY needed, and it should solve the reboot issue.
Now mind you my phone rebooted randomly about 2-3x a day. After following this very easy step, it no longer reboots AT all... and whenever i need GPS for anything, i just turn it on for those moments, then turn it back off.
( not sure if this has been mentioned before, but if it hasn't then give it a try, if it has then just hit the back button and continue on with your life )

Have tried that because I feel its probably partially GPS related too but I've had the phone reboot while GPS was off. I don't know if even using it for a bit seals your doom. What's weird though is I've never had a reboot while actually using the GPS including in Navigation for hours at a time. I think we just need a patch at this point.
javolin13 said:
So i've had random reboots starting on my phone recently and was thinking about ordering a replacement phone through LG here soon.
However, after speaking with a T-Mobile rep, they advised me that after hearing complaints about it, they've found (or heard of) a temporary fix for it, and it has seemed to stop MY random reboots too.
They're saying theres an issue with the software and the GPS crashing, a tmobile rep told me to just try and turn off the GPS option in the settings and, ONLY turn it on if its REALLY needed, and it should solve the reboot issue.
Now mind you my phone rebooted randomly about 2-3x a day. After following this very easy step, it no longer reboots AT all... and whenever i need GPS for anything, i just turn it on for those moments, then turn it back off.
( not sure if this has been mentioned before, but if it hasn't then give it a try, if it has then just hit the back button and continue on with your life )
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Sent from my LG-P999 using XDA App

Anybody having reboots/freezes, have you tried this?

Don't ask why but try doing the following:
- Settings -> Sound -> Haptic Feedback. UNCHECK (turning it off)
- Settings -> Language and Keyboard -> Android Keyboard Settings -> Vibrate on KeyPress. UNCHECK (turning it off)
I've had good results since doing this without changing anything else, phone has been more stable and no random reboots or freezes yet. Theory is due to the custom driver/vibrator used in the LG G2X (per CM7 team) there's a memory leak or some bug that over time causes the phone to reboot/freeze.
Why I think this:
- A few times in the last few weeks it froze was when a notification came in (GMail, SMS, etc.) that would have caused the phone to vibrate but instead of doing so it just did the SOD. Know this because I have a XOOM with me (3G) and emails come to both XOOM and G2X same time
- If I leave everything on, after about 2-3 days of use the vibrations start getting wonky with some lasting longer than they should or just not doing it properly
- Had a similar issue with CM7 on my Verizon Incredible where vibration issues would eventually lead to a reboot/freeze
NO GUARANTEES THIS WORKS. But I wanted to share and get more feedback. Please make these changes and then restart so its fresh. You don't need to disable vibration alerts, just the haptic feedback and keyboard vibrate.
Please post your feedback. Thanks.

I dont have reboots and never have those on...I'm gonna turn em on and see what happens..

I just turned mine off as suggested... I am on my 2nd G2x and am experiencing reboot issues already. I will keep you posted after a couple days on the results.
Thanks for posting this potential fix.

Had these off ever since I got the phone, haptic feedback gets really annoying. Will put them on and see what I find

I have had those on and had no reboots.
Sent from my LG-P999 using XDA App

witeboy07 said:
I have had those on and had no reboots.
Sent from my LG-P999 using XDA App
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Might be related to hw. The vibrator in the phone is a piece of hw so maybe some versions have problems and some don't. I know while my Incredible had vibration problems on CM7 others didn't with same exact software.
I wanted to see more if people getting reboots benefitted at all from these or not. It you don't have reboots at all this post is irrelevant.

mobilehavoc said:
Might be related to hw. The vibrator in the phone is a piece of hw so maybe some versions have problems and some don't. I know while my Incredible had vibration problems on CM7 others didn't with same exact software.
I wanted to see more if people getting reboots benefitted at all from these or not. It you don't have reboots at all this post is irrelevant.
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It might have more to do with the software. I've used the stock ROM, the leaked 2.3.3, and Cyanogenmod, and all three use different vibration models. The 2.3.3 was particularly bad, CM7 is probably the best.

Bought my G2x on the 9th( So, hello! I'm new ) and everything was great until... yesterday actually. Had a bootloop and had to factory reset, then it locked up later. Then today it locked up and I pulled the battery and just now it didn't come on when I tried to unlock it.
So... I'm trying this. Hopefully it works. D:
If not, I'm gonna have to get a replacement or something. I'll be back with a follow up, some time.

For those of you who try this, please update here after a day or two. I am likely to let T-Mobile switch my phone out to a Sensation today so I may not have a G2x to play with any more. I really like it and if there is a simple fix I'd be willing to give it another go.

Trying it now
I haven't had it reboot on me since I did a factory reset last week...
I'm going to turn off the vibrate settings as described in the first post. I'll come back in a few days to respond if I've had any reboots, freezes, etc.
EDIT: I'm also going to reboot after changing these settings just to make sure they "stick" and the phone is "fresh".

Day 1, no freezes.
I charged the phone and it didn't freeze either...
It's Day 2 now and I'll let you know how this goes down as well.

I haven't had either of these options checked since I first got the phone. I have a reboot approx every 1-2 days and a freeze every 3rd time.

Another strange thing
It's been over a day and a half after I've turned off the haptic feedback settings described by OP and no reboots or freezes yet. Even while using wifi calling and heavy camera use and very heavy picture uploading directly from phone to picasaweb.
Something else strange that happened to me before that could be related to the vibrate software/hardware is when some one called me it would vibrate and ring like normal but after sliding the green arrow over to answer it stopped ringing, answered the call just fine, but the whole time while talking the motor continued to vibrate in the two pulse way it normally does! Has anyone else had this happen!?

harleyxlc said:
I haven't had either of these options checked since I first got the phone. I have a reboot approx every 1-2 days and a freeze every 3rd time.
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Try wiping your dalvik cache as I've posted in a separate thread.

worked for me. 2 days no problems

day/charge 2 and 3... everything is going well.

Random Reboots.. any new info?

Hi everyone.. I searched a bit but couldn't come up with any more answers so I'm wondering if I missed something.
I've had my TF since like May, and for as long as I've had it, I've had this issue.
No matter what kernel or Rom or anything, my TF always randomly reboots ONLY when my screen is shut off and the wireless is left on. It doesn't reboot if I'm using it, and the only way to make it not happen is to turn on airplane mode when I'm done with it.
Its not a big deal, but it is annoying, especially if I leave it in the living room and forget airplane mode. Then whoever is in there gets to watch my TV constantly and randomly reboot every few minutes.
Its just more annoying than anything. Id love to just keep wifi active so it automatically connects when I turn the screen on.
Other than this, my TF has been flawless for like 6 months
Thanks if anyone has any information!

I've suffered through the same issue with my 16gb TF. By any chance do you have your pattern lockscreen turned on? Can't quite remember where, but I read that having it stops the reboots.
I tried it on mine and haven't had one since...but it's only been a day or 2. Can anyone confirm if the lockscreen stops or limits the issue?

avlon said:
I've suffered through the same issue with my 16gb TF. By any chance do you have your pattern lockscreen turned on? Can't quite remember where, but I read that having it stops the reboots.
I tried it on mine and haven't had one since...but it's only been a day or 2. Can anyone confirm if the lockscreen stops or limits the issue?
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Wow, ill have to give this a try. I've never used the pattern lockscreen.

random reboots
I get this after about an hour of use. If I sitch it off via the button then when I press it again it reboots. If I just let th TF switch itself off (after 5 mins) it switches on normally when I press the start button.

I also had similar problems with my wife's TF, it rebooted randomly just about anytime (not just with screen off), apps crashing randomly. When I returned it to the store where I bought it, they immediately replaced it with a new one that doesn't suffer any of those problems.
If you have such problems, I'd recommend taking it back to the store for repair, because that is definitely not the expected behavior.

unfortunately the lock screen thing didn't work
Can't really take the thing back, I've had it for months.... fortunately this is the only issue I have... I can live with it. Its purely an annoyance that doesn't affect me when using it...

Please help, my S6 NEVER goes into deep sleep...

Dear all,
I am writing this post to hopefully get some help or directions regarding my issue, because I have already spent hours and hours looking on the internet trying fixes on my phone without anything working for me so far.. So I am getting a bit hopeless....
I recently got a Samsung Galaxy S6 (SM-920I model), and since the beginning i have been shocked by how CRAPPY the battery life was. To give you some ideas, my phone loses around 3-5% of battery per hour when idling and screen off, meaning I am not doing anything at all with my phone. Overnight, I lose about 15-20% battery with my phone on airplane mode, power saving, or whatever else you want, when it is not doing anything at all..
I know that my problem is a deep sleep problem, quite easy to identify i guess, so I have spent a lot of time reading and trying to fix it by myself but so far nothing worked.
To give you some background, after unpacking the phone I quickly upgraded Android from 5.0 to 5.1.1, so I cannot tell how it was working at 5.0. It is only after that I saw that a lot of people have issues on 5.1, but it is strange because just before having my S6, I was having a OnePlus One on 5.1 and I didn't have such battery problems and everything worked fine except turning off the "keep awake" setting option for GooglePlayServices.
What I can say though, is that since I upgraded I never had so much difficulties trying to fix a problem on any Android phone than before. Basically, since day 1, my phone never went a single time into deep sleep mode.
So far, to fix this, I tried all the following:
- Reflash the stock firmware (Samsung 5.1.1) --> many times, with full Cache/davik wipe and factory resets
- Root my phone using UniKernel
- Install custom ROM (I am running XtreStoLite version 2.2) + all kinds of wipe/factory reset
- Flash different kernel that are shipped with the ROM (there are 5 different ones if I remember)
- Use my phone with only stock apps (to see if the problem comes from one of my apps)
- Cold reboots
- The "DeepSleepFix" using the Android terminal as described here: http://zidroid.com/fix-battery-drain-and-deep-sleep-issue-on-galaxy-s6-and-s6-edge/
- And desperately, try to use my phone normally for now
Overall, I would say that my battery would last roughly 15 -20h in total with normal usage, not even heavy, which quite sucks..
I can show the no deep sleep issue to you with some screenshots (cf. below) , I have tried many applications to try to find the root cause such as:
- WLD
- 3C CPU
- BetterBatteryStats
- GSAM
etc.
I am monitoring my phone closely for the past 1-2 weeks and so far I have never seen it being in deep sleep at all (at least more than 0.2 seconds in total..). Also, when I check on the default Battery menu of Android, after a full day I would usually see "Android OS" on top and using 20-30% of the battery at least.
The problem seems to boil down to a process called "LHD" in the kernel wakelock. This is keeping my phone awake 100% of the time, whether I am using the phone or if I am not. However, even with this info I tried to search online and I cannot find anything about "LHD", so I am really stuck right now.. Do anybody knows what it is and why it is a problem for me?
If any of you have a solution or can give me some guidelines to help me fix this issue, I would really appreciate any help. If you need more information from me also let me know.
Thank you for taking the time to read me,
Best regards.

I have G920I too and solved my problem using deepsleepfix and taking out the GSM CHIP e put into phone again. Looks ridiculous and no sense, but worked for me...
OBS.: In BetterBatteryStats my kernel wakelock was GPSD.
Hope this will help you

I have G920I too and solved my problem using deepsleepfix and taking out the GSM CHIP e put into phone again. Looks ridiculous and no sense, but worked for me...
OBS.: In BetterBatteryStats my kernel wakelock was GPSD.
Hope this will help you

thiagomed said:
I have G920I too and solved my problem using deepsleepfix and taking out the GSM CHIP e put into phone again. Looks ridiculous and no sense, but worked for me...
OBS.: In BetterBatteryStats my kernel wakelock was GPSD.
Hope this will help you
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Hi, thanks for your reply.
You mean you took out the GSM chip and flashed the phone using the DeepSleepFIx.zip file, and it worked? I already tried the deepsleepfix and it didn't work for me, but I didn't remove the GSM chip.
I can try that.. even though it is strange.

I just flashed the deepsleep and then took out GSM chip

Ok thanks thiagomed.
I tried what you did.. I flashed the DeepSleepFix.zip without my SIM in the phone, it changed nothing.
I also removed it and put it back later on after flashing again just to try. The problem is still there.
I really don't know what to do anymore.. Thanks for your help tough.

ImPain said:
Ok thanks thiagomed.
I tried what you did.. I flashed the DeepSleepFix.zip without my SIM in the phone, it changed nothing.
I also removed it and put it back later on after flashing again just to try. The problem is still there.
I really don't know what to do anymore.. Thanks for your help tough.
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Have you tried a factory reset and not installing any of your apps? Maybe it's an app keeping the phone awake?

LNJ said:
Have you tried a factory reset and not installing any of your apps? Maybe it's an app keeping the phone awake?
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As specified in my post, yes.... even when I was running the stock Android 5.1.1 with no other apps than the ones comming with the fresh OS installed, I already experienced this issue.
The problem is the process LHD in Android Kernel that is running all the time, phone on or off, and draining my battery.
I cannot find any information on this process and how to fix my issue...

Can this issue of never going into deep sleep at all (I mean I am always at 0s...) be a reason for going to Samsung support and ask for a replacement ? I find other people having no problem with their S6 and mine I tried so many things and nothing fixes my deepsleep issue... Getting sick of this phone.

ImPain said:
Can this issue of never going into deep sleep at all (I mean I am always at 0s...) be a reason for going to Samsung support and ask for a replacement ? I find other people having no problem with their S6 and mine I tried so many things and nothing fixes my deepsleep issue... Getting sick of this phone.
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You could fix this? I have the same problem .... Thanks

superchizo said:
You could fix this? I have the same problem .... Thanks
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Yes, after some time and a lot of trouble. I tried everything on the software side and nothing could fix it (flash, re flash, clear cache, reinstall other ROM, apply deep sleep patch fix, etc.). Nothing WORKED.
So it had to be a hardware issue.
I went to see Samsung and I had to argue with them several times showing them screenshots of my phone never sleeping over time, because they were not believing me and trying to say that this is normal..
They changed my battery first, and the problem was still there.
I went back later on to show them again, then they finally changed the whole motherboard of the phone (which includes the CPU as well) and since then everything is working as intended. My phone is now in deep sleep about 70-90% of the time depending on my usage.
To convince them to change my CPU, I had to show them stats of the same phone (S6) from one of my friends which shows the amount of deep sleep he has during the day, compared to mine which was zero. So that they cannot bull**** me it was the "normal behavior" .
Basically I did their troubleshooting job.. but thankfully in the end they manage to change the motherboard and fix this super annoying issue. Because having a phone that drains all the battery in 7h when you do nothing is really annoying.

LHD is smart feature - smart alert located in advanced features