Marshmallow wifi battery drain bug.. - Galaxy Note 4 Q&A, Help & Troubleshooting

After installing marshmallow to note 4 910F, I found out to much battery consumption.. It was more obvius when i left phone at night, connected with my wifi router. It had 20-30% battery consumption at 7 hours. Phone on, wifi on, rest off.
If i turn off wifi, no battery drain.. I loose 3%.
Even with 4G on, and wifi off, i loose much less!!
I tried more than 4 roms 6.01, factory erased everything, even safe mode. Always wifi drain.
In lolipop i had about 3% drain with the same.
Searching in net, i found out same problems mostly with nexus (probably because they had first of all marshmallow and they find it first..). I also found the same for note 5.
Many say to set router to 2.4 gihahz, set static ip, turn off something like v6 ip protocol? I don't remember well.
Also i read, mostly problem exists if router have huawei chip.
Checked mine, and it did had huawei chip..
Anyway i didn't found a solution for this. Tried better battery stats and found out tha alarms was for long time. Sleep was 85%, when normal would be 97%.
I also have a photo showing bigger drain in wifi than 4G.
Anyway how problem solved? I changed router and with everything same, i loose 3%....
But when i connect to other routers coffe, etc, if they have the same chip i still have drain there.
I probably find out the problem in note 4 first of all, as i dont read anything searching so, i inform others here.

note marshmellow battery drain
hope this helps. had the same problem of battery drain and not being able to put phone in power saving mode. i stumbled upon things that the update cuts on and you have no idea, anyway, it seems that the update has the search for other devices running 24/7 and you have to go in and switch it off. since then power mode has been enabled and stays on and battery life is back.

hello , guys .. beezyb can you explain with steps ?! you said that it seems that the update has the search for other devices running 24 hours / 7 days and i have to go in and switch it off ... bla bla .. what you mean with that ? !! can you help me ? !

Related

[Q] Weird battery behavior on MG5 (I9500)

Hey guys..
I am on Rooted MG5 with Persues Alpha 9. I have been facing this issue since ever I flashed MG1 and then MG5... Battery consumption on ideal mode is ridiculous..
When I go to sleep (12AM), I keep my phone's Wifi On... When I wake up (7.30AM) almost 20% of juice is consumed.. Even when Power Saving Mode is enabled.
Couple of days back, I tried turning off Wifi and Mobile Data connection.. Even then around 10-15% of battery was consumed. I don't really understand why does it take that much battery..
Yesterday I tried different experiment. I put my phone on Airplane mode, disabled Wifi, Enabled Power Saving mode.. Battery consumption was like 4-5%.. I still feel for phone in ideal mode this is too much..
Anyone else is having the same issue? or is it just me? shall I try flashing another firmware? I am not at all happy with battery life
Use BetterBatteryStats to see what's using your battery or maybe wakelocks
I will try using BetterBatteryStats.. Hope It will show the culprit service.

Cell Standby Battery Drain

Hey everyone,
I picked up a T2 on Thursday morning coming from a Maxx, and after the first day I felt I wasn't getting quite the battery life I should. After watching the battery stats and doing some research, the issue seems to be due to Lollipop's well-documented cell standby bug. Coming from KitKat I have been pretty frustrated by this, as my T2 will sometimes drain 5% or more in an hour of idling if WiFi (or possibly Bluetooth) is on, and seems to drain much faster with use if WiFi is on. (Note that all of this is taking place in areas with very strong 4g and WiFi signal).
When WiFi is turned on, Cell Standby tops the battery consumption chart by a large margin and my unscientific eyeball test suggests that the battery drains much faster.
Is anyone else having this issue? I'm considering taking the T2 back, but honestly there aren't any other new phones with comparable battery life, and it would be hard to give up the shatterproof display. Other than this I'm loving the phone and Lollipop.
Thanks!
I'm not having that issue at all and I leave my WiFi on pretty much all the time. I just checked mine and in 13 hrs my cell standby was 8%. Honestly idk if that's good or bad.
I guess I'll just keep an eye on it. Over this past night Cell Standby was on for 10 hours and had the Mobile Radio on for 8 hours while the phone was idle. Not sure if this is intended or not. My battery woes could just be in my head.
cell standby has been near or at the top of all 3 of my Verizon Lollipop phones so dont believe its a Turbo 2 direct issue.
I guess I'll just be patiently awaiting marshmallow then!
Try this, idk if it'll help or not but under WiFi settings under keep WiFi on during sleep, choose only when charging.
gfrrt said:
Try this, idk if it'll help or not but under WiFi settings under keep WiFi on during sleep, choose only when charging.
Click to expand...
Click to collapse
Thanks, I'll give it a shot!
I've also read this cell standby time is related to WiFi and possible fixes are as follows. Turn off allow Google to scan for networks even if off, keep WiFi on during sleep charge only, LTE instead of global, and then go into recovery and clear cache. This is what I did and my cell drain is very low. Hope it helps.
gfrrt said:
I've also read this cell standby time is related to WiFi and possible fixes are as follows. Turn off allow Google to scan for networks even if off, keep WiFi on during sleep charge only, LTE instead of global, and then go into recovery and clear cache. This is what I did and my cell drain is very low. Hope it helps.
Click to expand...
Click to collapse
Thanks for the tips - I changed all the settings but I'm having trouble getting into recover. When I try to launch from the bootloader I just get the dead Android with "No Command" displayed below it. Is there something I'm missing? FWIW I have dev mode on and unlock oem bootloader on.
I wouldn't turn on unlock boot loader this disables some security features and unless we have a way to truly unlock it. It's better to leave on. Dev mode doesn't affect drain issue at all. Here's link for booting into recovery.
http://androiding.how/download-droid-turbo-android-5-1-lollipop-ota-update/
gfrrt said:
I wouldn't turn on unlock boot loader this disables some security features and unless we have a way to truly unlock it. It's better to leave on. Dev mode doesn't affect drain issue at all. Here's link for booting into recovery.
http://androiding.how/download-droid-turbo-android-5-1-lollipop-ota-update/
Click to expand...
Click to collapse
Got it. Thanks for the help!
Mine drains fast while sleeping at home. In my case, the signal is poor so the phone has to crank up the radio power, draining the battery.
UPDATE: For anyone interested, the fixes suggested in this thread seem to have done the trick for me. After changing settings and wiping cache I am getting even better battery life (7-8 hours of screen on time up from 5-6 in similar conditions). This could, of course, be due to other factors - but hey, it's worth a shot if your battery is draining quickly!
gfrrt said:
I've also read this cell standby time is related to WiFi and possible fixes are as follows. Turn off allow Google to scan for networks even if off, keep WiFi on during sleep charge only, LTE instead of global, and then go into recovery and clear cache. This is what I did and my cell drain is very low. Hope it helps.
Click to expand...
Click to collapse
Which lte did you pick? There is 2 options. Also how do you get into recovery? Thanks
LTE/CDMA
I personally have noticed that turning off mobile data when connected to WiFi helps. I have done this with previous phones
I experienced this the other day after spending the weekend in an area with spotty service. To fix all I did was reboot the phone.
Ajbeattie said:
UPDATE: For anyone interested, the fixes suggested in this thread seem to have done the trick for me. After changing settings and wiping cache I am getting even better battery life (7-8 hours of screen on time up from 5-6 in similar conditions). This could, of course, be due to other factors - but hey, it's worth a shot if your battery is draining quickly!
Click to expand...
Click to collapse
Hey sorry but could you give a bit of a walkthrough for all the processes you took? Bit of a newbie here and my moto x force doesn't seem to be doing very well with the drain
Giving this a shot now...hopefully this works for me as well
Changing those settings helped immediately

A7010 battery drains extremely fast in stand-by

Without touching the phone at all, the battery dropped from 100% to 50% within 24 hours give or take. I tried disabling background apps in the settings yesterday but after 12 hours it's down to 24%. When I look at battery usage, it's 85% CPU, which is odd, since the phone is literally just locked sitting on the table. Wi-Fi is disabled, cellular is disabled. Any idea what may be causing this?
Same problem here
zaxrider said:
Without touching the phone at all, the battery dropped from 100% to 50% within 24 hours give or take. I tried disabling background apps in the settings yesterday but after 12 hours it's down to 24%. When I look at battery usage, it's 85% CPU, which is odd, since the phone is literally just locked sitting on the table. Wi-Fi is disabled, cellular is disabled. Any idea what may be causing this?
Click to expand...
Click to collapse
THis may sound insane but you can try.. Factory reset your phone.. Install only necessary apps... Charge your phone between 90-99 don't charge it 100%.. Now check the way you checked last time..
Went through two of those within two weeks, appears to be caused by Marshmallow system update, since the battery was fine when the device was at Lollipop but as soon as the update got installed, it started to drain like crazy. Looked through Lenovo forums, seen multiple complaints about the update causing battery drain, no solution, no system patch so far. Doesn't seem to have a 100% rate of happening though.
Bought a different device in the end.
zaxrider said:
Without touching the phone at all, the battery dropped from 100% to 50% within 24 hours give or take. I tried disabling background apps in the settings yesterday but after 12 hours it's down to 24%. When I look at battery usage, it's 85% CPU, which is odd, since the phone is literally just locked sitting on the table. Wi-Fi is disabled, cellular is disabled. Any idea what may be causing this?
Click to expand...
Click to collapse
I have a some problem. after installing the update (s230 or s232) the phone does not sleep...I tried different modems, but...result 0. on s219row all is ok. someone tell me what's wrong?
anyone experience when battery drop to 30% , after a 3-4minutes its now 20%...
I ended up downgrade to android 5.1 and it is much better now !!
You have link to lollipop last version s152.. i want too downgrade
battery drop is solved.Thanks Elmokadim from en.miui.com.
quote :
"Currently, the system of Redmi Note 4 device being used Helio x20 chips Deep Sleep problems. If you use 4G sim card, Deep Sleep normal operation when the device is in Standby Mode. If you're using a 3G sim card, when the device is in Standby Mode, Deep Sleep will not operate and battery causing serious losses, about 2% battery / 1 hour. And here's how to fix the problem.
Solved problem of battery drain during standby mode
1 - You want Root Your Phone
2 - Edit The build.prop File - Dir : /system/build.prop
Edit This Values in the build.prop
telephony.lteOnCdmaDevice=1
ro.mtk_lte_support=1
ro.mtk_volte_support=1
ro.mtk_vilte_support=1
Changed To
telephony.lteOnCdmaDevice=0
ro.mtk_lte_support=0
ro.mtk_volte_support=0
ro.mtk_vilte_support=0
Thanks."
You can only change volte.
also thanks to 4pda.ru
Sarge24 said:
battery drop is solved.Thanks Elmokadim from en.miui.com.
quote :
"Currently, the system of Redmi Note 4 device being used Helio x20 chips Deep Sleep problems. If you use 4G sim card, Deep Sleep normal operation when the device is in Standby Mode. If you're using a 3G sim card, when the device is in Standby Mode, Deep Sleep will not operate and battery causing serious losses, about 2% battery / 1 hour. And here's how to fix the problem.
Solved problem of battery drain during standby mode
1 - You want Root Your Phone
2 - Edit The build.prop File - Dir : /system/build.prop
Edit This Values in the build.prop
telephony.lteOnCdmaDevice=1
ro.mtk_lte_support=1
ro.mtk_volte_support=1
ro.mtk_vilte_support=1
Changed To
telephony.lteOnCdmaDevice=0
ro.mtk_lte_support=0
ro.mtk_volte_support=0
ro.mtk_vilte_support=0
Thanks."
You can only change volte.
also thanks to 4pda.ru
Click to expand...
Click to collapse
Will this disable volte?
Hello , All,
This is very common problem with most of the Lenovo OTA update releases. (especially from Build : S219, S230 and S232 .) there will not be any issue if you use any custom roms.
actually CPU deep sleep is not enabled for those builds who consumes more battery.
please flash stable stock builds OR use custom roms, which has more features . (caution: warranty will be gone)
thank you
Bhanu
shashankudupa said:
Will this disable volte?
Click to expand...
Click to collapse
yes.
Anyone who struggle in rapid battery drain when battery drop to 31-30% then after a while its 20%... Any users of k4/a7010..
Refer this Link https://forum.xda-developers.com/k4-note/how-to/lp-lenovo-k4-note-stock-roms-s152-s218-t3466184 for rolling back to Lollipop s152 or Marshmallow s230 (You need to root your device and unlock bootloader though )

Cell standby killing the battery

recently i encountered a lot of battery drain even without using my phone ( galaxy s8 dual sim ) i noticed that cell standby is using a lot of battery sometimes as much as if not greater than the screen it self which is weird because my signal is ok i dont think ian losing signal
anybody having this problem ??
alaa96 said:
recently i encountered a lot of battery drain even without using my phone ( galaxy s8 dual sim ) i noticed that cell standby is using a lot of battery sometimes as much as if not greater than the screen it self which is weird because my signal is ok i dont think ian losing signal
anybody having this problem ??
Click to expand...
Click to collapse
The image shows the phone was without signal for some time which was about 32% and it will consume power. Don't know the reason behind this, but if phone really had no signal for a long time, then be in another place where there is a good signal and test there. I have seen few times with my old Moto X, that sometimes after using internet via mobile network(without wifi), the connecting would somehow still be open and it would consume battery and the way to fix this, I had to restart the phone.
Charkatak said:
The image shows the phone was without signal for some time which was about 32% and it will consume power. Don't know the reason behind this, but if phone really had no signal for a long time, then be in another place where there is a good signal and test there. I have seen few times with my old Moto X, that sometimes after using internet via mobile network(without wifi), the connecting would somehow still be open and it would consume battery and the way to fix this, I had to restart the phone.
Click to expand...
Click to collapse
this is ridiculous ! i never had an issue like this with any of my older phones
best bet do a factory reset and see if it still persists
Same happens to me too. Yesterday I went outside my house and traveling in the city - my battery went from 100% to 43% in 6h40min. I had SOT only 1h. I am wondering if something related to GPS is killing the battery as it always drain very fast if i am moving - but in the other hand it seems that phone radio is draining also the battery a lot. Any advices what could I do?
varun.gid said:
best bet do a factory reset and see if it still persists
Click to expand...
Click to collapse
i already did it but no good i think this problem happened after an update
nixun said:
Same happens to me too. Yesterday I went outside my house and traveling in the city - my battery went from 100% to 43% in 6h40min. I had SOT only 1h. I am wondering if something related to GPS is killing the battery as it always drain very fast if i am moving - but in the other hand it seems that phone radio is draining also the battery a lot. Any advices what could I do?
Click to expand...
Click to collapse
cell standby is not related to gps and location services i dont think so at least iam pretty sure it is mainly phone network related
Cell standby drains too much battery
I'm using Galaxy S8 Exynos Version (Dual Sim). Facing this cell standby extreme battery drain issue recently. I have tried several options like- reset network settings, restart / power off-on, factory reset and wipe cache partition to see if the problem goes away or not. These things can solve the problem only for 2-3 days. Then after that same cell standby battery drain occurs again. The only thing left is to hard reset. But I don't think this will solve the problem either. These are not the permanent solution. When I first got the phone this problem was not there. For the last 2-3 weeks I have been facing this issue and it is bothering me a lot coz my battery drains too much even when i'm not using my phone. I really need a solid solution for this. Can anybody help? And I hope Samsung will address this issue and solve it asap.
I think cell standby is the worst problem in the S8. It really kills battery. It can make your phone drop 2% per hour.
Same issue here. Didn't have this issue before the latest two updates. Before I had 6-7 SoT and now barely 2-3 hours.
yes, this issue was not pronounced before the latest updates (one or two as mentioned)
Same thing here. After the last update there is a battery problem with standby. Hope they fix it with next release.
same with my s8+ dual exynos

Samsung S8 Oreo - Battery Drains FAST

Hi,
My Samsung S8 since last upgrade to Oreo was a complete disaster. Just to be clear battery life during Android Nougat was good and it was the first thing ive noticed that samsung completely stepped up their game since their battery disaster on their certain phone model. Battery life would run at least from a day to 2 before recharging. Ive noticed there are other threads similar to these so i knew im not the only one affected, my colleagues also experience similar issues since upgrading to oreo so this is not something isolated to my s8 phone.
Few key points that ive noticed since upgrading to oreo:
1. Going to settings then battery usage. Screen would be the foremost battery hog at 26%, followed by Android System at 13%, then Device Idle at 9-8%. Cell Standby and Android OS remains normal.
2. Go to Settings then App. Ive noticed by checking each one of the apps that beaming services, device maintenance, settings, gear vr services were among the ones that took up most of the battery usage this is excluding system apps like AASAservice, etc.
3. Go to settings then data usage. The Android OS is sending or receiving 100MB of data (still counting). I wanted to know what are these data that is worth 100MB.
4. Device easily gets hot even light use of facebook, ig or 7 minutes of youtube video.
5. It sometimes restart, this is rare but ive noticed it since fingerprint cannot be used initially when there's a restart.
Now what ive done so far:
1. Cleared partition cache by holding bixby btn, volume up and power.
2. Disabling unused apps, even certain bixby services, etc.
3. Went to developer option and disable always on mobile data.
4. Factory reset device hoping it would go back to nougat but it did not. With a mint condition reset, it still drain too much battery. (without any third part apps or data restore)
5. Called up samsung customer service but was told to go to service center. Went to service center they check the ASOC of battery (which i think is unrelated) and according to them reprogram oreo. which did not help. wasted my time.
Now what is the implication?
1. I need to charge my phone at LEAST twice a day.
2. It heats up the phone which would definitely have negative impact on the longevity of this device one way or another.
3. It drains too much battery, with the amount of charge discharge multiplied at least by 2, this will literally messed up the battery life in the long run.
4. Im currently using 2 phones and my samsung s5 which is a 4 year old phone had better battery life. lol. Since in just 3 hours it consume almost 40% of battery.
There are tons of related post like these on different forums and on reddit but i surmise i should dig more on this problem before writing a more concrete post. At this point, i can only see 2 remaining options: 1. There is a step online that would revert the OS back to nougat but this would involved third party apps like odin, there are risk involved like phone brick, etc. Im not sure if it will void the warranty. OR i can just wait for a patch from samsung.
Now SAMSUNG NEED TO FIX THIS ASAP or provide us a way to revert back to nougat. With the s9 just available at the market, this terrible oreo release could not come at better time. I know there are several issues like the battery issues with their previous note model and Apples intentionally slowing down their phone, Samsung got to fix this fast before this issue becomes a blowout and many people will start to notice.
There are several threads about this: https://forum.xda-developers.com/galaxy-s8/help/to-to-fix-battery-drainoreo-t3771716
https://forum.xda-developers.com/galaxy-s8/help/oreo-battery-life-t3749459
On what version of Oreo are you? Since CRC7 batterylife is great.
Android 8.0.0
on SM-G950FD
update_king said:
Android 8.0.0
on SM-G950FD
Click to expand...
Click to collapse
What security patch do you have and what can you see under "Baseband"? Everything will be fine with latest March security Patch and CRC7 Baseband. Just be patient, if you do not have it, yet.
Marvinho+ said:
What security patch do you have and what can you see under "Baseband"? Everything will be fine with latest March security Patch and CRC7 Baseband. Just be patient, if you do not have it, yet.
Click to expand...
Click to collapse
I have the same issue but thanks for the info as I'm still on the February security patch
I have to agree CRC7 shows good improvement with battery life
Marvinho+ said:
What security patch do you have and what can you see under "Baseband"? Everything will be fine with latest March security Patch and CRC7 Baseband. Just be patient, if you do not have it, yet.
Click to expand...
Click to collapse
Its February Security Patch Level
Man, i´m totaly on same boat!
In CRC7, i'm experiencing terrible battery life. Max 2.00 to 2.30 Screen on time in one charge. Now, for the first time, i have to recharge my phone befoure dinner.
Wifi , Bluetooth, Aod On, location history Off.
It´s the worst experience on any phone that i had in the past.
Like you, already disabled some apps, clear cache and already done a fresh install. Nothing works, nothing improved my battery.
I´m thinking send it to warranty, but it´s probaly not worth the time...
Maybe it´s time to forget about Samsung phone and move on. P20, or even iPhone X...
After updating to OREO and updating all galaxy apps, "beaming service" was draining my battery (67% of the battery actually). After uninstalling the updates on beaming service, the phone seems fine now. Maybe uninstalling the updates of which apps are draining the battery could help you guys as well.
XyByDy said:
After updating to OREO and updating all galaxy apps, "beaming service" was draining my battery (67% of the battery actually). After uninstalling the updates on beaming service, the phone seems fine now. Maybe uninstalling the updates of which apps are draining the battery could help you guys as well.
Click to expand...
Click to collapse
ive tried that before but after fresh install. beaming service could no longer be disabled, nor its updates uninstalled.
Besides other apps are also draining battery like AASAservice, settings, device maintenance, etc.
I received an update yesterday for the CRC7 March security patch.
Battery life aint any better
update_king said:
ive tried that before but after fresh install. beaming service could no longer be disabled, nor its updates uninstalled.
Besides other apps are also draining battery like AASAservice, settings, device maintenance, etc.
Click to expand...
Click to collapse
You're right, that can't be disabled but I was simply able to uninstall the updates by clicking three dots top-right corner of app info screen. I've the latest version CRC7 on the phone by the way.
Hello !
I've been s8 for three months and I've never had any particular problems, I've upgraded to CRC7 (second update of Oreo) and I've already got twice the phone with a flat battery:
last week in the morning I found it at 1% from 35% the night before (during the night only the gsm network was active, everything else off); when in doubt I did a factory data reset by installing only minimal applications (FB, whatsup and little else) and I installed the Accubattery application to monitor the battery.
Last night put away (active gsm only) at 65% of residual charge and this morning after 10 hours it was 5%: 60% of charge consumed in one night.
Android does not report any abnormal consumption of any application .... it seems an anomalous battery drain
I enclose battery data screenshots; is not that the new Oreo update is buggy? or could the battery or the phone power circuit or the radio part that consume excessively might have a problem? Before bringing it to service I wanted your opinion and in case I wanted to try to put back the CRB7 version of Oreo .... how do I do it? do I lose the guarantee in this case?
https://imgur.com/a/tmEH5
i'vre tried with beaming service but clicking three dots top-right corner of app info screen not available for this app : three dots top-right corner are for all the apps
Do you have a drain simillar to mine ? Help me please !!
timo74 said:
Hello !
I've been s8 for three months and I've never had any particular problems, I've upgraded to CRC7 (second update of Oreo) and I've already got twice the phone with a flat battery:
last week in the morning I found it at 1% from 35% the night before (during the night only the gsm network was active, everything else off); when in doubt I did a factory data reset by installing only minimal applications (FB, whatsup and little else) and I installed the Accubattery application to monitor the battery.
Last night put away (active gsm only) at 65% of residual charge and this morning after 10 hours it was 5%: 60% of charge consumed in one night.
Android does not report any abnormal consumption of any application .... it seems an anomalous battery drain
I enclose battery data screenshots; is not that the new Oreo update is buggy? or could the battery or the phone power circuit or the radio part that consume excessively might have a problem? Before bringing it to service I wanted your opinion and in case I wanted to try to put back the CRB7 version of Oreo .... how do I do it? do I lose the guarantee in this case?
i'vre tried with beaming service but clicking three dots top-right corner of app info screen not available for this app : three dots top-right corner are for all the apps
Do you have a drain simillar to mine ? Help me please !!
Click to expand...
Click to collapse
I have the exact same problem as you and many others. I have tried various things to solve it and I concluded on that the modem firmware has a serious bug . airplane mode consumes more battery than on cellular. To make sure we are talking about the same thing please try removing your SIM card and let it all night . By the morning you have to be -2% of the battery . With the SIM inside now you have to drain 15-20% . If thats the case for you , you make sure that its not a faulty device and there is no drain from your setup (like an application draining etc .. in this case factory reset should fix it).
Cinfirm your findings and lets hope they will release update soon.
Vagosd said:
I have the exact same problem as you and many others. I have tried various things to solve it and I concluded on that the modem firmware has a serious bug . airplane mode consumes more battery than on cellular. To make sure we are talking about the same thing please try removing your SIM card and let it all night . By the morning you have to be -2% of the battery . With the SIM inside now you have to drain 15-20% . If thats the case for you , you make sure that its not a faulty device and there is no drain from your setup (like an application draining etc .. in this case factory reset should fix it).
Cinfirm your findings and lets hope they will release update soon.
Click to expand...
Click to collapse
he doesn't do it every night, but random : in a week it happened twice
It's not in airplane mode, modem is switched on only for phone line (LTE off) ; I already tried two factory reset
Yours is affected only in airplane mode ?
Tonight , my s8 have to drain 60 % in 9 hours !
timo74 said:
he doesn't do it every night, but random : in a week it happened twice
It's not in airplane mode, modem is switched on only for phone line (LTE off) ; I already tried two factory reset
Yours is affected only in airplane mode ?
Click to expand...
Click to collapse
It drains in general but while in cellular it's difficult to distinguish if it's a bug or bad signal . Each ones phone may consume different amounts of energy depending on coverage etc. But in airplane mode you can be sure it's a bug because antenna transmission should be off and therefore not consuming energy . Just try as I said just to be sure we have the same issue . One night with airplane mode and SIM card in and another night airplane without SIM. You should see great difference .
Vagosd said:
I have the exact same problem as you and many others. I have tried various things to solve it and I concluded on that the modem firmware has a serious bug . airplane mode consumes more battery than on cellular. To make sure we are talking about the same thing please try removing your SIM card and let it all night . By the morning you have to be -2% of the battery . With the SIM inside now you have to drain 15-20% . If thats the case for you , you make sure that its not a faulty device and there is no drain from your setup (like an application draining etc .. in this case factory reset should fix it).
Cinfirm your findings and lets hope they will release update soon.
Click to expand...
Click to collapse
Tonight ( gsm on ) have no drain : 0,3 % / h. ( 3 % in 10 hours ).
if it is faulty the battery should always do it?
Did you try to see if it drains, leaving the radio part active?
timo74 said:
Tonight ( gsm on ) have no drain : 0,3 % / h. ( 3 % in 10 hours ).
if it is faulty the battery should always do it?
Did you try to see if it drains, leaving the radio part active?
Click to expand...
Click to collapse
This will not help determine the bug because as I told you it's signal dependant. It's 3% in 10 hours because you probably had good signal . Else it could be more and even if you contact a service they will say it's not a bug but the signal . Anyway if you were with data on and 4g seems more than fine to me . Now if you try this night airplane mode for 10 hours it could drop 15-20% ... is this reasonable ?
Vagosd said:
This will not help determine the bug because as I told you it's signal dependant. It's 3% in 10 hours because you probably had good signal . Else it could be more and even if you contact a service they will say it's not a bug but the signal . Anyway if you were with data on and 4g seems more than fine to me . Now if you try this night airplane mode for 10 hours it could drop 15-20% ... is this reasonable ?
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in airplane mode is a bug, but a 60% night-time consumption with active gsm?
0.3% / h. the device was in the same position the night before when it consumed 60% in 9 hours
timo74 said:
in airplane mode is a bug, but a 60% night-time consumption with active gsm?
0.3% / h. the device was in the same position the night before when it consumed 60% in 9 hours
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Your case seems more like a random application wakelock . Did you do a reboot between the 2 nights?
To distinguish better the cause of the drain , when you see an abnormal consumption try removing your SIM card for a while . If this fix the drain it's the buggy modem/radio firmware ...

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