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When attempting to wake up device (SPH-L720) from sleep using power or home button, it doesn't wake up, gets blank screen, the menu and back soft buttons LED lights come on, hangs for few secs on the black screen, then reboots by itself. Issue happens randomly and sometimes once a day or multiple times an hour. It seems like the problem existed before rooting and installing custom ROM but I've just noticed it.
I'm using TriForce 3.0 ROM (Android 4.2.2) w/ baseband L720VPUAMDL and kernel 3.4.0-KT-SGS4-ga23d84c. I've tried wiping/reinstall ROM, reflashing back stock ROM, removing microSD card. Nothing helped. The battery charges properly and is usually fully charged. No wear and tear or damage of any kind. Device is 1 month old.
Any ideas what might be causing the problem and suggestions for possible fix?
its because of the kernal, mine does this aswell..
kyledb said:
its because of the kernal, mine does this aswell..
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Click to collapse
Did you find a fix? Does changing the kernel fix the problem? If so, which kernel did you go with? It's driving me crazy lol. Thanks!
I cannot speak to whether or not, as somebody else suggested, the kernal is at fault, but I too am using KT Kernal and have this issue.
beerindex said:
I cannot speak to whether or not, as somebody else suggested, the kernal is at fault, but I too am using KT Kernal and have this issue.
Click to expand...
Click to collapse
Did you notice if you had the issue before rooting and flashing the KT kernel? I'm trying to narrow down the cause. I'm thinking of trying another kernel to test and see if it fixes the problem.
verto8 said:
Did you notice if you had the issue before rooting and flashing the KT kernel? I'm trying to narrow down the cause. I'm thinking of trying another kernel to test and see if it fixes the problem.
Click to expand...
Click to collapse
I don't recall it happening before root, but I rooted fairly soon after getting it. I cannot remember whether it happened while it was stock rooted. As to the kernel, I flashed it immediately after installing my rom, so I would not be able to distinguish between the two as a source.
I switched to the agat kernel and it stopped rebooting until I attempted to watch videos... So I went back to ktoonz..it is most defiantly a kernel issue as this is a known issue with that kernel I deal with it everyday and its absolutely annoying
There is a nice selection to pick from.. Agates..kt...stock....chronic..and faux ..had the same issues on KT but fixed it by UV down 15 across the board ..also for some reason 8/20 worked better for me ..but my fix might not work for anyone else..I really liked chronic..running faux now ..I hated reboots ..my phone was rebooting before I ever rooted it ..who knows my carrier wanted me to bring it in for a replacement ..decided it was time to start reading
beerindex said:
I don't recall it happening before root, but I rooted fairly soon after getting it. I cannot remember whether it happened while it was stock rooted. As to the kernel, I flashed it immediately after installing my rom, so I would not be able to distinguish between the two as a source.
Click to expand...
Click to collapse
Same situation here. I rooted and flash a custom ROM on mine right after I got it. I believe it had the issue pre-root on stock ROM/kernel, but I'm not a 100% sure. I had same issue w/ the Cyanogenmod ROM, not sure what kernel it was using.
kyledb said:
I switched to the agat kernel and it stopped rebooting until I attempted to watch videos... So I went back to ktoonz..it is most defiantly a kernel issue as this is a known issue with that kernel I deal with it everyday and its absolutely annoying
Click to expand...
Click to collapse
Do you remember if you had the issue on stock ROM before rooting? I believe mine has always existed and might be a hardware problem because I tried different ROMs/kernels and issue persisted with all of them.
ParkerParker said:
There is a nice selection to pick from.. Agates..kt...stock....chronic..and faux ..had the same issues on KT but fixed it by UV down 15 across the board ..also for some reason 8/20 worked better for me ..but my fix might not work for anyone else..I really liked chronic..running faux now ..I hated reboots ..my phone was rebooting before I ever rooted it ..who knows my carrier wanted me to bring it in for a replacement ..decided it was time to start reading
Click to expand...
Click to collapse
Is there a comparison thread of different kernels? I'm wondering what the pros/cons of each and maybe some user experience feedback. I believe mine was rebooting as well when it was on stock before rooting. This seems like it might be a hardware problem rather than software (ROM/kernel). Do you think everyone w/ a Sprint Galaxy S4 (SPH-L720) is having this issue? If so, Samsung should do something about it because it's super annoying!
Update: I've been using latest version of KT-SGS4 kernel 3.4.59 (Aug 25 build) for over a day and it's been pretty stable w/ no occurrence of the problem. I'll keep this thread posted w/ updates if I run into any problem. Thanks to everyone for their help!
2nd Update: it still has the problem.
It's still happening but at a slightly lower frequency with the latest KT-SGS4 kernel. For those who have tried a different kernel, did it fix the problem? I'm trying to narrow down the source and convince myself for certain that it's a software rather than a hardware issue.
Same issues
I have been a lurker here for a while, and have found most of the answers that I am looking for without having to ask any questions. For that I say thank you.
I would like to let you know that I am experiencing the same issue with my rooted SGS4. I do not recall having the issue before rooting the phone (I ran it stock for a month or so before rooting it in early July). Today I did a factory reset and re-installed Tri-Force 3.0. Here is some more info if it helps.
SPH-L720
Android 4.2.2
L720VPUAMDL
Hardware Ver. L720.08
Kernel 3.4.0-KT-SGS4-ga23d84c
I am going to try to un-root it this afternoon and go back to out of the box stock to verify it is not a hardware issue.
I am mostly posting here to follow the thread hoping for a fix.
grnerd said:
I have been a lurker here for a while, and have found most of the answers that I am looking for without having to ask any questions. For that I say thank you.
I would like to let you know that I am experiencing the same issue with my rooted SGS4. I do not recall having the issue before rooting the phone (I ran it stock for a month or so before rooting it in early July). Today I did a factory reset and re-installed Tri-Force 3.0. Here is some more info if it helps.
SPH-L720
Android 4.2.2
L720VPUAMDL
Hardware Ver. L720.08
Kernel 3.4.0-KT-SGS4-ga23d84c
I am going to try to un-root it this afternoon and go back to out of the box stock to verify it is not a hardware issue.
I am mostly posting here to follow the thread hoping for a fix.
Click to expand...
Click to collapse
Try that and odin back to stock mf9 not mdl. Tri-force is mf9 based so maybe thats why you get those issues because you need firmware kernel modem and such. Also it could be that kt kernel had been reported to cause some of those issues.
i went to a new rom and new kernal and this is still happening to me, i have no idea what it is now.... any solutions from anyone?
UPDATE: BAD MICRO SD CARD!!!!!!!!!!! REMOVED MY SD CARD AND NO ISSUES IN THE PAST 2 DAYS
NEW UPDATE: SPOKE TO SOON..
So I had my i9500 s4 for like 5 months now.. never had a problem, but now.. It restarts randomly and a lot of items there is no sound at all or very low sound, I never messed with it!
That was on stock rom + Preseus kernel.. I installed custom rom with latest preseus kernel and no success, same problem
LegendJo said:
So I had my i9500 s4 for like 5 months now.. never had a problem, but now.. It restarts randomly and a lot of items there is no sound at all or very low sound, I never messed with it!
That was on stock rom + Preseus kernel.. I installed custom rom with latest preseus kernel and no success, same problem
Click to expand...
Click to collapse
Update ur phone with the new Firmware MJ8 ->- DOWNLOAD HERE - . This will be Android 4.3. When finish u can try change the STOCK KERNEL for the one u wish :highfive:
Joku1981 said:
Update ur phone with the new Firmware MJ8 ->- DOWNLOAD HERE - . This will be Android 4.3. When finish u can try change the STOCK KERNEL for the one u wish :highfive:
Click to expand...
Click to collapse
I was already full stock and faced that problem, will try again though, thanks a lot
I hope you don't experience any of the below things to otherwhise you have to replace your battery
do you have only battery drains or also random reboots?
the fact is that samsung shipped out a bad serie of batteries (which is confirmed by Samsung) their serial starts with BD
the symptoms of a bad battery are:
Huge battery drain
random reboots
while rebooting the phone hangs at samsungs logo
battery is swelling
phone shutting down while you have an incomming call/sms
when you are the "lucky one" to experience one of the above symptoms please replace your battery asap under warranty
if you don't do this you risk a phone exploding in the pocket of your pants this is not only painfull for your phone but also for "everything else" whats in there
LegendJo said:
I was already full stock and faced that problem, will try again though, thanks a lot
Click to expand...
Click to collapse
I know but this is latest firmware for ur zone . I think will work perfect for ya :highfive:
on the latest d802 4.4.2 custom roms and kernels i get a lot of freezes.
it will freeze in the middle of an animation and will take some seconds up to some minutes and then working normal again.
sometimes i have to hard-reboot to get out of freeze / lag.
on older 4.4.2 slimroms i never had this behavior, only since some weeks with new roms / kernels.
i`ve tried every rom / kernel combo but sooner or later i will get a freeze again.
could a revert to stock and re-rooting / flashing custom rom maybe a solution? i`m afraid to do this because of the long time to backup my 32gb data.
what are your experiences with the latest 4.4.2 roms and kernels? did you find a solution for this with any combo or fixes?
help would be appreciated.
push! no one else with same problems? maybe i got a hardware defect?
paratox said:
push! no one else with same problems? maybe i got a hardware defect?
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Click to collapse
The only thing I can say is I own the VS980 version of the device and i've tried every single 4.4 rom offered on this sight and have the same issue with all. Most of the time i'm using the device and it freezes, sometimes reboots, and sometimes comes out of it after a few minutes. Also not being able to wake the device only seeing a black screen and forced to hard reboot device. 4.3 seems to be a much better with these issues but not completely solved for me. I'm hoping the release of 4.4 source from lg will fix these issues but i'm unsure. So at least your not alone in these problems lol. I've tried multiple kernels and governors etc. Bumping up the min freq on the cpu seems to help and changing to interactive governor but doesn't eliminate the issue just help. I thought my next move would be to use lg flash tool and update to latest firmware reroot and install cwm.
flyinj54 said:
I thought my next move would be to use lg flash tool and update to latest firmware reroot and install cwm.
Click to expand...
Click to collapse
i think i will do the same today after work. hopefully this helps.
the better option would be to stay some days on stock rom to ensure there is no hardware defect. but i can`t stand stock so this would be a hard route! ^_^
paratox said:
i think i will do the same today after work. hopefully this helps.
the better option would be to stay some days on stock rom to ensure there is no hardware defect. but i can`t stand stock so this would be a hard route! ^_^
Click to expand...
Click to collapse
Yea unfortunately it seems very common among these devices so i'm pretty confident it's a software issue although i'm not 100% sure of that. I ran a flex rom for a few days on 4.2.2 and didn't have any of the same issues.
added a poll as a matter of interest.
omni-ROM, Mokee rom, vanir rom etc.freezing problem still continues.
Using CM11 (4.4.2) for 5 days with zero freezes so far.. note that this is on D800, not 802.
lubirdy said:
Using CM11 (4.4.2) for 5 days with zero freezes so far.. note that this is on D800, not 802.
Click to expand...
Click to collapse
Stock cm11 kernel?
Sent from my LG-VS980 using Tapatalk
flyinj54 said:
Stock cm11 kernel?
Sent from my LG-VS980 using Tapatalk
Click to expand...
Click to collapse
Yes, stock cm kernel.
I'm thinking back now and it did freeze once when first signing into the Google account immediately after flashing the ROM, but nothing after that. So.. nearly spotless
Nice! Maybe they are getting the issues ironed out. Haven't been on cm11 for a week or so since it was the worst with freezes for me. I'll have to give it another shot.
Sent from my LG-VS980 using Tapatalk
flyinj54 said:
Nice! Maybe they are getting the issues ironed out. Haven't been on cm11 for a week or so since it was the worst with freezes for me. I'll have to give it another shot.
Sent from my LG-VS980 using Tapatalk
Click to expand...
Click to collapse
Best of luck! To be specific, I'm using the snapshot release of cm11... still don't trust the nightly releases
i did a lg flash tool stock restore, factory reset and OTA updates. now the freezes did not come back until now *knock on wood*.
when i did a backup of the sd there was one corrupt media file which was not able to transfer.
maybe the media scanner did go crazy and was the reason for the freezes.
using cm11 m3 on my d802... very little freezes compared to previous nightlies, fingers crossed
I installed loillipop 5.1, from scratch using the factory image. All went smooth and the performance was much better than with 5.0.2 (which was my previous version), but I have random reboots unless I stay connected to the wall. This can be easily reproduced by putting the tablet to sleep (i.e., I pressing power button). Immediately my nexus reboots (99% of times).
I tried everything possible. Factory reset. Reistalled after formatting every possible partition. Reistalled starting from scratch without using my google backups. Nothing helps.
The only solution was to come back to 5.0.2 (again through the factory images, flashing and formatting everything).
Last test I am going to do is to use the OTA to go from 5.0.2 to 5.1 but I do not have much hope.
Anyone else experiencing similar problems?
It looks like an hardware issue put in evidence by the new kernel that is part of 5.1, but it could eb enything else.
Greetings.
Have you tried using any other kernel, eg. franco kernel?
Fobos531 said:
Greetings.
Have you tried using any other kernel, eg. franco kernel?
Click to expand...
Click to collapse
Thanks for the suggestion, I didn't know Franco had released a version of his kernel for 5.1. I tried latest M-Kernel but it is not working with 5.1. Now I am sideloading the OTA from a stable 5..0.2, just to see if going to 5.1 using OTA helps. Will report if I succeed and in case I didn't will try with FK (and report).
Meanwhile, any other suggestion is welcome
Fobos531 said:
Greetings.
Have you tried using any other kernel, eg. franco kernel?
Click to expand...
Click to collapse
Current situation after some more tests:
5.0.2 from factory image (full wipe): works
5.0.2 -> 5.1 via OTA: reboot each time goes to sleep (unless wall powered or attached to PC USB)
5.1 from factory image (full wipe): same as above
rastapop 5.1 (full wipe): same as above
5.1 + franco kernel R82: same as above
I would try to increase CPU voltage: any suggestion how to do? Which kernel to use? Which app to adjust voltages? I am going to try with franco kernel and trickstermod (which I already bought) but I am not sure this combination will allow me to adjust voltages.
EDIT: no way to adjust voltages with FK for 5.1. Reverting back to 5.0.2 and waiting someone gives suggestions or has similar issues (or releases new kernels)
Sideload 5.1, same issue. Even worse than 5.0.2.
Sent from my Nexus 7 using XDA Free mobile app
killerfrank said:
Sideload 5.1, same issue. Even worse than 5.0.2.
Click to expand...
Click to collapse
Even in your case the device reboots just after entering sleep mode? Please confirm, I thought I was the only one, but if this happens to others then it must be a software issue, not hardware.
This does not happen at all to me(using stock 5.1 with Franco Kernel).
This is indeed happening to me as well with the factory 5.1 image. Also thought Franco Kernel could possibly be a solution but didn't work. I had F2FS previously but reverted to install stock 5.1.
_Hobbz said:
This is indeed happening to me as well with the factory 5.1 image. Also thought Franco Kernel could possibly be a solution but didn't work. I had F2FS previously but reverted to install stock 5.1.
Click to expand...
Click to collapse
It looks like a mixed hw/sw problem. It is indeed clear that 5.1 works on most N7, either being installed from factory images or after an OTA upgrade, but for some of us it results in rebooting when the machine goes to sleep.
I attached last_kmsg (/proc/last_kmsg) just after the problem manifested. This is exactly what happens every time I put the device to sleep (pressing the power button or leaving it alone for a couple of minutes) and it repeats always the same (with the same kmsg).
Anyone knows how to extract other information that could be useful to isolate the source of the problem? Notice that I cannot do a catlog since the device doesn't go to sleep if it is connected to a PC (so I cannot recreate the problem).
Your battery is dying, I've been getting the same problem until I replaced the battery today.
richarddwyer10 said:
Your battery is dying, I've been getting the same problem until I replaced the battery today.
Click to expand...
Click to collapse
A hardware problem related with the power unit of the device was also my first hypothesis, but under 5.0.2 i everything works perfectly and the battery has the original duration. Under 5.1 also everything works... until the device goes to sleep. Only then it reboots.
Was this the behavior in your case?
I've been getting the same issues on my N7 since updating.
regret to disappoint you people, but i have not a single reboot in my nexus 7 since doing a clean install from cm12. two days being unrooted, no reboots; now running three days rooted, still no reboot. could be due to the clean install i did. lol.....
ondoy1943 said:
regret to disappoint you people, but i have not a single reboot in my nexus 7 since doing a clean install from cm12. two days being unrooted, no reboots; now running three days rooted, still no reboot. could be due to the clean install i did. lol.....
Click to expand...
Click to collapse
I also made a clean install of 5.1 using the factory image and formatting everything (from system to data and cache). Still I have the reboots. I come back to 5.0.2 (same procedure: clean install from factory image) and had no reboots in four days of use. Clean install of rastapop (5.1 based) or 5.0.2 -> 5.1 via OTA resulted in the same situation: The device reboots as soon as it goes to sleep.
I know several users installed 5.1 and have no issues, this is why I think this is a hardware problem put in evidence from the new software.
I hope someone find a way to deliver a 5.1 version that do not present the problem (I like how smoother 5.1 is w.r.t. 5.0.2). Perhaps a new kernel or a new rom as a whole.
gianpaoloc said:
I also made a clean install of 5.1 using the factory image and formatting everything (from system to data and cache). Still I have the reboots. I come back to 5.0.2 (same procedure: clean install from factory image) and had no reboots in four days of use. Clean install of rastapop (5.1 based) or 5.0.2 -> 5.1 via OTA resulted in the same situation: The device reboots as soon as it goes to sleep.
I know several users installed 5.1 and have no issues, this is why I think this is a hardware problem put in evidence from the new software.
I hope someone find a way to deliver a 5.1 version that do not present the problem (I like how smoother 5.1 is w.r.t. 5.0.2). Perhaps a new kernel or a new rom as a whole.
Click to expand...
Click to collapse
I've seen other people reporting the same issue on the nexus help forums too so hopefully Google will be looking in to this.
_Hobbz said:
I've seen other people reporting the same issue on the nexus help forums too so hopefully Google will be looking in to this.
Click to expand...
Click to collapse
Sorry, which forums do you exactly mean? Something here on XDA or something managed by Google directly? If you could forward us to the right place we could add our report. The more we are the easier it is that Google takes the issue into consideration (I hope
Thanks
I've given up on LP for the N7. I've gone back to KK. Stability is awesome, performance is great. LP was a disaster on the N7. Performance issues, lock ups, etc. No matter how many times I clean installed it, etc, it just wasn't good.
I'm now officially calling it Lollipoop (at least for the 2012 N7). But, it is an old device. I'm still waiting to see how it turns out on my LG G3 phone. I'm sticking with KK on that phone as well for now until I know for sure it runs well on it.
Stability over bleeding edge.
Hi
JFYI, I have just updated my 2 sons' N7 2012 (coming from Omnirom) to Lollipop 5.1 (with Nexus Root Toolkit v2.0.4, meaning following the same procedure)
- 1 of them fine
- 2nd one with the issue reported here; which is why I'm on this thread now
updated kernel to franco r82
the issue remains...
will keep checking this thread
thansk
beng
gianpaoloc said:
Sorry, which forums do you exactly mean? Something here on XDA or something managed by Google directly? If you could forward us to the right place we could add our report. The more we are the easier it is that Google takes the issue into consideration (I hope
Thanks
Click to expand...
Click to collapse
So I can't post links yet because of my low number of forum posts but if you google 'nexus help after update to 5.1, it won't wake up after in sleep mode, please help' then it should be the first result that shows up.
Things were running fairly well for me with the slimkat 5.0.2 rom on F2FS so I'll likely switch back to that while this gets sorted out.
I've had my n7 for 2 years now, flashed all kinds of custom Roms, bricked it, fixed it, encrypted it, unencrypted it several times, and It has never ran as slow as it did on lollipop. I tried, 5.0, 5.0.2, and 5.1 I even reset kk to stock and let the ota's do the job and no matter what, LP is still not usable in my opinion. I feel sorry for the people that take the ota and do not know how to revert back to kk.
Sent from my Nexus 7 using Tapatalk
Since I rooted my note 4, I have been having random freezes and it is frustrating. I installed SimplROM, Revolution, Note 5 Port ( Kyubi or something ) and finally a stock rooted rom ( bare developer's edition ) and my phone is the whole time freezing on me. I don't use social media so I am not having background heavy tasks running, always fully erased the phone's internal memory and cache before installing a new rom and yet I still get the crashes. I hve never had that before I rooted the phone. anyone experiencing this as well ?
my phone is a N910F
stilkus said:
Since I rooted my note 4, I have been having random freezes and it is frustrating. I installed SimplROM, Revolution, Note 5 Port ( Kyubi or something ) and finally a stock rooted rom ( bare developer's edition ) and my phone is the whole time freezing on me. I don't use social media so I am not having background heavy tasks running, always fully erased the phone's internal memory and cache before installing a new rom and yet I still get the crashes. I hve never had that before I rooted the phone. anyone experiencing this as well ?
my phone is a N910F
Click to expand...
Click to collapse
I am having the same problem, lagging all 5 sec when typing or swiping on homescreen. It just happens on Touchwiz roms. The Fingerprintsensor aint working either. I tried Stock Roms, Custom Roms.
Somebody said that they fixed it on the 910T with a puerto rico stockrom but no fix for 910F.
I just installed CM12.1 and no lag.
Waiting for marshmallow for fingerprintsensor support.
Hope i could help.
Akuma360 said:
I am having the same problem, lagging all 5 sec when typing or swiping on homescreen. It just happens on Touchwiz roms. The Fingerprintsensor aint working either. I tried Stock Roms, Custom Roms.
Somebody said that they fixed it on the 910T with a puerto rico stockrom but no fix for 910F.
I just installed CM12.1 and no lag.
Waiting for marshmallow for fingerprintsensor support.
Hope i could help.
Click to expand...
Click to collapse
Mine is actually working fine and it freezes without warning or in other words I can't point out exactly when it freezes, like sometimes the camera, drop down notification bar or even the task switcher. It is random, I tried yesterday some solution which I'm not sure exactly of it's outcome but so far no freezes. I changed the securestorage value in the build.prop to false which resulted in loosing my wireless password but after I retyped it again things were fine.
stilkus said:
Mine is actually working fine and it freezes without warning or in other words I can't point out exactly when it freezes, like sometimes the camera, drop down notification bar or even the task switcher. It is random, I tried yesterday some solution which I'm not sure exactly of it's outcome but so far no freezes. I changed the securestorage value in the build.prop to false which resulted in loosing my wireless password but after I retyped it again things were fine.
Click to expand...
Click to collapse
Hi,
souns like the S-Health and Privatemode error.
you fixed it with that method. You could also use the xposed module for S-Health to fix it.
Akuma360 said:
Hi,
souns like the S-Health and Privatemode error.
you fixed it with that method. You could also use the xposed module for S-Health to fix it.
Click to expand...
Click to collapse
could you please elbarate more with this xposed module fix ?