Hi,
I owe a Note 2 N7100 with stock ROM Android 4.4.2. I have only 3G enabled round the clock with sync enabled. I use third party app to manage the screen brightness automatically for lower down the power consumption. Since past few weeks I am noticing that the battery is being drained very fast and resulting into a backup of 10-11 hrs in standby condition with no phone calls at all.
I used both the in-built and Gsam battery monitoring utilities to find out the cause but couldn't tracked it down. Can anyone here will help me out with the root cause of the drainage problem by analysing the snapshots ?
Hell0
Getting vertical lines on smt700 non rooted after over the air update (U.S)
After update I did a factory reset installed apps One by one and I started to notice a flicker of VERTICAL lines appearing at start of boot and also when batter is low it will freez slightly and do the vertical line thing before freezing a little then shutting off..
this only also with games...
Thanks a lot..
-AHMED-
My sister noticed an occasional black screen flash after updating her Tab S 10.5 to Lollipop. I have the same model upgraded to Lollipop and have never experienced this issue but twice, once on KitKat and once with Lollipop I saw part of the screen look scrambled (like an old set tuned to a channel that WA not in range), for a second after hitting the home key.
Sent from my SM-T800 using XDA Premium HD app
Green flicker
Smt700 wifi screen flashes green and gets vertical lines....
Sometimes when the screen does this flickering it restarts...
-Ahmed-
My 10.5" T800 has been on for over 200 days and has never been turned off or rebooted since i got it, no problems at all with flickering, but the older you get the less sensitive you get, I am not a gamer so my tablet is not stressed.
If you are having problems get your tablet repaired or replaced.
John.
I ve the same issue after upgrading to lollipop, I cant find the solution
Still flickering
try everything to solve this flickering with vertical line issue.
Nothing worked..
Factory reset, disable hardware overlays and limit performance ultimately won't fix this issue...
I have the same issue.
Downgrading does not solve the problem
I have seen that it happens when battery is lower than 50%.
To mitigate the problem I have set seen brightness to 30% fixed and also losing mobile segnala makes the screen flicker or the tablet to reboot
When you rotate the tablet do the vertical lines rotate as well.
John.
All problems started only after lollipop update.well most of us are getting them,,random reboots,green flickering lines,grey bars etc,,
But the only available solution for flickering Is turning the power saving mode on which is what I have done
iam facing this issue with my t705
its not the lollipop fault
its an hardware problem, the battery connector socket
This happened to me before and after the lollipop update. Someone suggested to use power saving mode to restrict CPU usage. It seems as if the tablet goes crazy whenever theres a high cpu load involved.
I have the same problem after update to lolipop. Most often occurs when there is a lot of notifications and low battery.
In my opinion is a software problem, what do you think ?
edit:
8% battery, lot of vertical lines during using notifications center, tablet reboots - this never happened before (on 4.4).
[SOLVED]
Fixed screen flickering issue !!
did this by governing the frequency to not pass more than 1.6 ghz...
Rooting then installing overclock widget and setting frequency to not pass 1.6ghz. Max..
From what I know about chips ''they are not all baked alike'' the same chip could come out with lower stable frequencies ..
I hope this helps someone for it has 100% solved the screen flickering problem for my smt700...
Thanks...
-Ahmed-
I found this, might be worth a try.
http://www.problogbooster.com/2014/06/on-screen-display-flickering-error-android-xda.html
John.
Tinderbox (UK) said:
I found this, might be worth a try.
http://www.problogbooster.com/2014/06/on-screen-display-flickering-error-android-xda.html
John.
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My relative has complained of an odd flicker (screen goes briefly black) after updating to Lollipop. Usually happens while moving from an app to the home screen. I sent them instructions based on that article so they can test if it fixes their issue. I'll post the results but likely after a few days to make sure it actually works. Oddly enough I have an identical model SM-T800 on Lollipop and do not have the issue that they find so annoying.
Thanks for posting the article.
Sent from my SM-T800 using XDA Premium HD app
I've seen it on mine since Lollipop came along. In my case I get the screen with snow - like a TV tuned to a channel with no signal - . It's happened when the screen was timed out and then awakened. I've not been bothered by it more than about 5 or 6 times so I've just not bothered with doing anything about it.
Sefto said:
I have the same problem after update to lolipop. Most often occurs when there is a lot of notifications and low battery.
In my opinion is a software problem, what do you think ?
edit:
8% battery, lot of vertical lines during using notifications center, tablet reboots - this never happened before (on 4.4).
Click to expand...
Click to collapse
Video:
https://www.youtube.com/watch?v=4iBDVirN_XM
Service center in Poland (CCS) replaced screen and repaired motherboard. It seems to be fixed.
I thought it was a lollipop issue, but having followed the advice to force GPU screen rendering through developer options, I found the problem did not go away. Thus, it must be a hardware issue.
corvus.corax said:
I thought it was a lollipop issue, but having followed the advice to force GPU screen rendering through developer options, I found the problem did not go away. Thus, it must be a hardware issue.
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Click to collapse
Hello,
Did you try to set the default CPU frequency to 1.6 ghz... maybe even try to govern it down to 1.4ghz.
For my WiFi smt700 simply underclocking the cpu completely fixed the issue...
The issue is due to either your tab cpu wasn't from a set baked that could handle Higher work loads or quick raises in frequency like from sleep or switching between apps.. forcing GPU rendering take away resources from cpu and forces the GPU to do the work.. Hopefully an official kernel update could help with this in the future...
But for now under clocking the cpu or force GPU rendering or powersave mode all appear to help resolve the screen flickering issue and the only constant that I can determine is that these fixes all involve taking away workload from the cpu...
UNDER CLOCK FOR NOW !!
Thanks... (hope underclocking helps some members here)
-Ahmed-
Sent from my SM-T700 using XDA Free mobile app
That's interesting. Unfortunately, my device is not rooted yet and I don't plan to do that in the near future. So while I can use powersaving, I can't underclock. If there is a problem with the quality of the CPU, then IMO Samsung owes me a fully working device. I mean, they sold the device with the idea it was able to run at correct speeds.
Hello,I am using Zenfone 2 16GB, 4GB ram . My battery life is bad every 3 minute %1 drain fastly ...
I can see screen time maximum 4 hour or maybe a little more for 4 hour.Screen Light %0 wifi is closed and everything is closed no working program no working bluetooth or nfc etc..I tried everthing for better battery life but ı cant solve this problem ı bought my phone one mounth ago and ı see everyday android is is using %45-50 battery.I never opened auto screen lighter or 4g or ntc. But drain,fastly every 3 minute %1 drain.my firmware is 2.20.40.58 and how can solve this problem can you help me please
To help improve battery life
1. Please ensure to turn off 'Wifi Scanning always available.'
2. Please also see the following information showing 8 ways to extend the ZenFone 2 battery Life. http://www.asus.com/us/support/FAQ/1012981/
3. If still no improvement then recommend performing a hardware reset including cache wipe partition and try steps 1 & 3 again. http://www.asus.com/us/support/FAQ/1011956/
Sincerely,
ASUS_USA
[email protected]
None of those ASUS official 8 ways do solve the root cause of the battery drain issue.
So far I find most interesting way that may really double your battery life is to activate the "Intel Deep Sleep Mode"
Please check at the link (sorry too new to post a link)
-quote Post on 2015/8/11 01:16 | View KLChi's posts -
Hi
I still dare to activate my Zenfone2 deep sleep mode following the process.
Guess what happened? I have no problem with my proximity sensor nor any issue with ZenMotion after 1 week tests.
And the battery saving effect of this deep sleep mode is working like a champ.
I have not yet calculated scientifically but the deep sleep mode at least *doubled* my battery life, which means before activating deep sleep mode I need to recharge every day of even 1/2 day. Now my Zenfone2 could work without charging for more than 1 day or even 2 days under normal use.
Now I have removed all apps related to battery saving like amplify, greenify, battery doctors, etc.
and I don't even need to close any app in startup management and the deep sleep still works and extend my battery life up to 2 days recharging cycle under my normal usage.
Although I find a side(not bad) effect so far is that the file transfer will be "deep slept" (i.e. backup progress stopped at the % where your screen turns off) and it seems the moving activity in the background is deactivated when screen off. But this is not a issue to me as I expect all apps and activities that out of my focus should not keep draining my battery. I can achieve this by stopping unkown/unecessary wakelocks through "xplosed + amplify" but I don't need them anymore as deep sleep mode seems does the same for me.
One thing really does matter to me is that will all notification still works? My test so far shows that by activating the deep sleep mode will not disable any wifi nor 4G signal nor any notification that the apps should normally give you alarms/warnings, especially wake up alarms.
I'd like to really really thank you for your advise.
I think this "intel deep sleep mode" is really a total soultion to the Zenfone 2 battery drain issue and worth a try, at least for me so far.
I don't know if this process also may apply to non-intel cpu android phones which also have the andorid os battery draining bugs.
--
can you tell me the steps to enable deep spleep mode?
I am a noob bro :angel: but the following tweaks will certainly help u.
I use auto start manager to manage almost all except a few apps like whatsapp and truecaller etc.
Disable wifi scanning and wifi network notification in wifi advanced settings. Our phone's brightness is too much even on the lowest setting so keep it around 25-30% for lower battery drain from display.
Watch out for wakelocks, read the battery graph. I prevented truecaller and playstore from waking up device.
Turn off gps when not using.
Disable asus built in bloatware and certain google apps that u don't use e.g. i dont use google plus, talkback, hangouts and even chrome since these run in background and drain battery.
Google app is also a big culprit. I personally don't use google app and disabling it will make a big difference.
Then use data usage in mobile manager for further tweaks. Avoid 4g/3g when idle.
Mine is a 2gb z00a and i get a decent backup of around 1.5 days with normal usage with calling whatsapp browsing. Intel processor is a battery vamp and this fact can't be changed.
And not to forget after every ota update perform a cache wipe to get rid of conflicting data from previous firmware.
And this intel deep sleep mode is new to me..will also try it.
<deleted>
I don't know whether this is a bug or a hardware problem
Model: 4GB RAM
Baseband version: 1527_5.0.44.1_1027, 1527_7.0.20.0_0723
Build number: LRX21V.WW-ASUS_Z00A-2.20.40.139_20151104_2652
Problem:
My zenfone 2 4gb ram , 64GB model ( not rooted) was working without any problems until the last update. Now, my phone is shutting down automatically due to a " thermal shutdown event" I have noticed sometimes that the cpu temperature is really high at times say 133F but high temperatures are not causing thermal shut down. However, I have noticed that the phone shutdowns automatically even when the temperatures are around 90F. The problem is encountered while charging (i am using the asus charger) and also during light to normal usage of the phone.
I suspect that the thermal sensor might be damaged or theres a chance that this is a bug with the new 2.20.40 build. I really am not sure. I need advice/help in fixing this problem
Thanks
How to recreate: This is a random event. I did not suceed in taking screenshots of the problem
Carrier(s): T mobile in Sim 1, Sim 2 is empty
Wi-Fi Frequency (if connected): 2.4 GHz / 802.11ac
Hi @Shhyam
I had .139 version on my phone.
No such problems with me.
This definitely is not a bug.
As you suspect it might be a malfunctioning thermal sensor.
Maybe you can do a backup of your data and perform a factory reset and see the result.
Hi, whenever I'm on a call on WhatsApp, Messenger, or any other social media, I can't use any internet related apps or my call starts dropping, and the other app also stop connecting to the server or whatsoever. As an example, I can't check FB, or use Chrome while on a call. Sometimes WiFi connection just disconnect and reconnect after a little while of trying to use two apps together while on a call. It also happened back in MiUi 11 android 10, I don't remember if it was on Android 9, but most likely. Am I the only one with this issue? I can surf internet on my pc even watch videos on YouTube without affecting the call quality on the phone, so my internet speed has nothing to do with it. Locked bootloader, MiUi 12, formatted after installing the new OS to make it trouble free, but nothing helped. Can anyone please tell me if I can downgrade this to an earlier version without getting this bricked? I know I have to unlock the bootloader, but I'm confused with that anti-rollback index or whatever it is called. Also Battery usage was 2 days before MiUi 12 with 8-10 hours display on time and now it's just one day. Appreciate your help. This is my first Xiaomi device and will be the last
1. There is a known issue with Wifi interference when Bluetooth is on. Are you using BT when talking on whatsapp? Unfortunately based on my research this is a hardware problem involving the wifi 2.4 Ghz and BT radios which interfere with each other and cannot be fixed via a software update. Downgrading will not help, and is a pain in the a** anyway because of Xiaomi's restrictions. A workaround is to use 5 Ghz (which is a different frequency than BT) or turn BT off when you need good wifi bandwidth.
2. For most people including myself battery usage is about the same with MIUI 12 as with 11 so if you are seeing a significant difference, your best option is to install Acubattery and try to determine which one of your apps is draining the battery. This is almost always the cause. There should not be more than a slight decrease compared to MIUI 11. Should be about 40 hrs including about 10 hrs SOT.
1. Thanks for the info.
2. It's weird, I never had the same battery usage on MiUi 12 even before I format the mobile. Also I've used Accu Battery app more than a week and each day after 80%-90% charge session, it started to drop battery health by 1% for last 3 days I used and I simply deleted the app finding it useless or it's my lack of knowledge ?
With Accubattery were you able to see which service or app was draining? Was the phone going into idle/sleep mode?
TheRisingDragon said:
1. Thanks for the info.
2. It's weird, I never had the same battery usage on MiUi 12 even before I format the mobile. Also I've used Accu Battery app more than a week and each day after 80%-90% charge session, it started to drop battery health by 1% for last 3 days I used and I simply deleted the app finding it useless or it's my lack of knowledge ?
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