Huge idle battery drain ? - Samsung Galaxy S7 Questions and Answers

Hi everyone ,
I am using the unlocked AT&T Galaxy S7 SM-930A, running latest unlocked rom SM-930U,
The battery drain 1% in about 20 minutes of Idle , I checked battery status, it does not show any applications that used huge percents of battery.
I tried to factory reset the phone , but the problem still persist.
Anyone know this problem, please help me, thank you.

vroyibg said:
Hi everyone ,
I am using the unlocked AT&T Galaxy S7 SM-930A, running latest unlocked rom SM-930U,
The battery drain 1% in about 20 minutes of Idle , I checked battery status, it does not show any applications that used huge percents of battery.
I tried to factory reset the phone , but the problem still persist.
Anyone know this problem, please help me, thank you.
Click to expand...
Click to collapse
Same here, Rogers SM-G930W8. Android System and Android OS have higher usage that the Screen. I was just about to factory reset the phone but decided not to after reading this post.
Its a great phone but this battery issue is a REAL pain. Ive read elsewhere its the Location Services keeping the phone from sleeping. Turning it off isnt a fix, as everything on these phones uses Location Services now.
Any help you guys may have would be GREATLY appreciated. Good luck OP.

Could someone solve the problem? I have the last update and the battery is drained and turned off with 40%

Related

[Q] help? Batterry precentage

Hi Guys, i'm noob, i wana ask about my htc sensation, after 2 year i'm using it, today i found
when battery charging (htc Senstaion) dismiss displaying percentage of battery after i restarting while charging.
****battery charging ------> Battery percentage displaying 60% then i restarting the phone while this situation
and then when phone finish restarting and ready to use battery precentage displaying 100%(full)
is it normal?
sorry my english bad
Boot into recovery and wipe battery stats.
Sent from my HTCSensation using XDA Premium 4 mobile app
if not all many users(including me) have this situation
it is a htc's common issue after rooting the device
there is no a solution yet
it is just a percentage misreading
by the way i don't know if wipe battery stats will help
rzr86 said:
if not all many users(including me) have this situation
it is a htc's common issue after rooting the device
there is no a solution yet
it is just a percentage misreading
by the way i don't know if wipe battery stats will help
Click to expand...
Click to collapse
After rooting??? R u sure about that ??
I was suffering same issue before rooting and after rooting..
Wipe battery status is useless here ..
Its HTC's fault....
Itsakash said:
After rooting??? R u sure about that ??
I was suffering same issue before rooting and after rooting..
Wipe battery status is useless here ..
Its HTC's fault....
Click to expand...
Click to collapse
before rooting?
for me that never happened
also wipe battery stats is useless and indeed it is htc's fault
rzr86 said:
if not all many users(including me) have this situation
it is a htc's common issue after rooting the device
there is no a solution yet
it is just a percentage misreading
by the way i don't know if wipe battery stats will help
Click to expand...
Click to collapse
Just a percentage misreading? But if the phone thinks it's at 100% won't it stop charging then?
emrvb said:
Just a percentage misreading? But if the phone thinks it's at 100% won't it stop charging then?
Click to expand...
Click to collapse
probably it stops
i am not sure about that
edit: the point is the battery is increasing its percentage slower when it passes 60%-70%
but it charges the same
so if you reboot the device then it jumps at 90% or full charge
rzr86 said:
probably it stops
i am not sure about that
edit: the point is the battery is increasing its percentage slower when it passes 60%-70%
but it charges the same
so if you reboot the device then it jumps at 90% or full charge
Click to expand...
Click to collapse
Is it known what causes this?
Someone above said "it is a htc's common issue after rooting". Is there any source on that? For all I know, percentage of charge of battery is determined by a combination of output voltage and amps, preferably referenced by a table taking battery age into account (correct me if I'm wrong though).
Rooting the device should not be an issue, unless HTC did something in their rom to detect this and let the battery percentage be wrong. Then again, most of us aren't on the stock rom. To be on another rom, the bootloader needs to be unlocked. Did HTC do something that unlocking the bootloader makes voltage/discharge readings unreliable? I doubt that...
I'm interested in this because I unlocked and flashed a Sensation XE for a friend of mine (SultanXDA's KitKat rom), but the battery discharges very, very fast, without an obvious cause. So I wonder whether it could be the battery is not fully charged and/or the phone decides it's empty to early.
"it is a htc's common issue after rooting"<- i said that
it was a source but i can't find it now
also i don't know if htc did something with unlocking the bootloader by purpose
if you flashed the rom recently don't judge the battery too early
give it 4-5 cyrcle charges until it settles down then see how it goes
emrvb said:
I unlocked and flashed a Sensation XE for a friend of mine (SultanXDA's KitKat rom), but the battery discharges very, very fast, without an obvious cause. So I wonder whether it could be the battery is not fully charged and/or the phone decides it's empty to early.
Click to expand...
Click to collapse
I have exactly this problem.
It sounds like the same ROM, Saltan kit kat. I am using the latest kernal 3.4, having tried two kernals I get the same results. For example I charged the phone to full, and after 2 hours of use I'm down to 55%, WiFi on and browsing, gmail synced but not much else, screen brightness turned down etc.
I only flashed a couple days ago, will it improve massively over the next few days?
The phone was giving a days charge easily before flashing.
I am also noticing a message saying 'unfortunately process com.android.phone has stopped working' (or similar). When this happens and I click OK I notice the signal disappears for a few seconds before coming back. Could this be the cause of the problem?
Could it be he ROM?
I'm new to all this but managed to unlock, root, flash recovery, and flash the ROM thanks to the brilliant guides on XDA. Any help with the above would be appreciated.
Rob
i am facing the same problem , rather my problem is goes much further .
iam on stock ROM and not rooted my sensation. my device often restart automatically even when battery is about 90% or battery is 40% and it continue this from last 2-3 months.
and after restarting battery percentage is also changed, see attached pics.
i am tired of this rebooting , i observed that restaring is mostly when i connect to calls or text msgs.
can somebody pleeeeeeaase help me.
tAheEr73 said:
i am facing the same problem , rather my problem is goes much further .
iam on stock ROM and not rooted my sensation. my device often restart automatically even when battery is about 90% or battery is 40% and it continue this from last 2-3 months.
and after restarting battery percentage is also changed, see attached pics.
i am tired of this rebooting , i observed that restaring is mostly when i connect to calls or text msgs.
can somebody pleeeeeeaase help me.
Click to expand...
Click to collapse
since you are completely stock then the only thing i can tell you is to check your battery if it fits correctly
also how old is it?
rzr86 said:
since you are completely stock then the only thing i can tell you is to check your battery if it fits correctly
also how old is it?
Click to expand...
Click to collapse
thanks for ur reply ,
i have inserted plastic card behind battery for proper contact (adviced by many people at xda) but problem is not solved. my battary is 6 month old.
may be it is battery as i purchased from local market.
i have ordered new battery and soon will recive that . will let you know.
i have observed that mostly mobile got restart when i make/recieve calls and sms.
Spawn-uk- said:
I have exactly this problem.
It sounds like the same ROM, Saltan kit kat. I am using the latest kernal 3.4, having tried two kernals I get the same results. For example I charged the phone to full, and after 2 hours of use I'm down to 55%, WiFi on and browsing, gmail synced but not much else, screen brightness turned down etc.
I only flashed a couple days ago, will it improve massively over the next few days?
The phone was giving a days charge easily before flashing.
I am also noticing a message saying 'unfortunately process com.android.phone has stopped working' (or similar). When this happens and I click OK I notice the signal disappears for a few seconds before coming back. Could this be the cause of the problem?
Could it be he ROM?
I'm new to all this but managed to unlock, root, flash recovery, and flash the ROM thanks to the brilliant guides on XDA. Any help with the above would be appreciated.
Rob
Click to expand...
Click to collapse
Does anyone have any ideas? Today the phone lasted around 12 hours but with minimal use which isn't really good enough. I thought rooting and flashing would improve battery life but so far I am disappointed. I may try another ROM tomorrow.
Rob
i'm try to buying new original batery but still same problem,
now i'm trying viver rom sc.5.1, with last Sebastian FM kernel
this rom verry awesome i'd like this but baterry percentage still problem:
----------------------------------------------------------------------------------------------------------------------------------------------------------
DEVICE: HTC Sensation Z710e
PREVIOUS ROM:Rooted Stock Rom ICS Sence 3.6
CURRENT ROM:ViperS 5.1.0 JB Sense 5
FIRMWARE:3.32.401.5
PREVIOUS KERNEL: htc kernel
CURRENT KERNEL:kernel 3.4.10 by SebastianFM
BOOTLOADER:unlocked
HBOOT VERSION:1.27.0000
RECOVERY:4EXT recovery touch v.1.0.0.6 RC1
S-ON
Thanks
for all REPLY
tAheEr73 said:
thanks for ur reply ,
i have inserted plastic card behind battery for proper contact (adviced by many people at xda) but problem is not solved. my battary is 6 month old.
may be it is battery as i purchased from local market.
i have ordered new battery and soon will recive that . will let you know.
i have observed that mostly mobile got restart when i make/recieve calls and sms.
Click to expand...
Click to collapse
This really sounds like your battery, especially if it's not the original or equivalent. But, it could also be an app on the background, keeping your phone from "deep sleep". Bad cell coverage (very low signal) also drains your battery relatively quickly when you're on 3G. A good WiFi connection consumes less power than 3G with bad signal. Another possibility could be (but unlikely) is that your phone is intended for another region and thus having trouble communicating with the GSM network.
- Check your battery.
- Check what your battery is used for.
- Check your battery time with network set to GSM only.
---------- Post added at 10:21 PM ---------- Previous post was at 10:04 PM ----------
rzr86 said:
"it is a htc's common issue after rooting"<- i said that
it was a source but i can't find it now
also i don't know if htc did something with unlocking the bootloader by purpose
if you flashed the rom recently don't judge the battery too early
give it 4-5 cyrcle charges until it settles down then see how it goes
Click to expand...
Click to collapse
Still you keep saying "after rooting" which is significantly different from unlocking the bootloader and flashing. Furthermore, to me it seems far more people report "better battery life" with their new roms.
About initially flashing the rom: i thought format of system, data and cache (including dalvik cache) ought to be enough. It has had somewhere between the 10 and 20 charge cycles by now. Battery life improved a little, but it's still far from acceptable. The battery percentage between reboots should only differ marginally between reboots (might need a few minutes of usage to become accurate). Also notable: over 20% difference in percentage reading between rom and recovery.
I wouldn't mind investigating this. So I wonder if anyone with "proper" battery life could provide me a "dumpsys" for the battery service and would perhaps have the time to take a look at /proc with me.
emrvb said:
Still you keep saying "after rooting" which is significantly different from unlocking the bootloader and flashing. Furthermore, to me it seems far more people report "better battery life" with their new roms.
About initially flashing the rom: i thought format of system, data and cache (including dalvik cache) ought to be enough. It has had somewhere between the 10 and 20 charge cycles by now. Battery life improved a little, but it's still far from acceptable. The battery percentage between reboots should only differ marginally between reboots (might need a few minutes of usage to become accurate). Also notable: over 20% difference in percentage reading between rom and recovery.
I wouldn't mind investigating this. So I wonder if anyone with "proper" battery life could provide me a "dumpsys" for the battery service and would perhaps have the time to take a look at /proc with me.
Click to expand...
Click to collapse
i unlocked the bootloader and root the device at the same period and i stayed for months with the stock rom
i don't know which one is responsible for percentage misreadings
also don't get confused
i am talking only for percentage misreadings and not for better battery life
and only when you charge the device.not unplugged
of course i had(and i still have) very good battery life with whatever rom i have flashed
by the way i have noticed the percentage difference between recovery and rom but i don't remember if it was 20%
rzr86 said:
i unlocked the bootloader and root the device at the same period and i stayed for months with the stock rom
i don't know which one is responsible for percentage misreadings
also don't get confused
i am talking only for percentage misreadings and not for better battery life
and only when you charge the device.not unplugged
of course i had(and i still have) very good battery life with whatever rom i have flashed
by the way i have noticed the percentage difference between recovery and rom but i don't remember if it was 20%
Click to expand...
Click to collapse
Alright, thanks for clearing that up. I really want to solve this issue, so I'm quite keen on getting the facts straight.
Back to my issue then (yeah I'm effectively hijacking this thread): is it possible the percentage misreading is causing the battery not to fully charge and/or discharge? Or should I direct my search to another cause?
This is what I found (or did not find) so far:
- Stand-by time seems great, the drain occurs when the screen is on.
- There is nothing in the normal battery usage (usage goes to screen)
- I was unable to detect an obvious culprit with better battery stats.
- I did notice that when I do a dumpsys, service battery shows voltage in V, while my Sony shows it in mV.
- I tried offline charging for about an hour today (light still orange), after boot the battery indicator showed 100%. It dropped to 86% in 7 to 8 minutes.
emrvb said:
I tried offline charging for about an hour today (light still orange), after boot the battery indicator showed 100%. It dropped to 86% in 7 to 8 minutes.
Click to expand...
Click to collapse
probably never truly reached the full charge(100%) when charged it in that one hour
by the way how old is your battery?
did you try with a new one?
rzr86 said:
since you are completely stock then the only thing i can tell you is to check your battery if it fits correctly
also how old is it?
Click to expand...
Click to collapse
please see attached screenshots
what do u think , is this battery or some hardware etc fault??

Abnormal battery drain

I have a 20 day old galaxy s6 duos. It was bough new off ebay. I was functioning properly and when on holiday I dropped it onto a tiled concrete floor from a height of 2-3 feet.
Since then the battery has been draining abnormally.
I have disabled apps still no joy. Then ran the phone in safe mode with no improvement. Then did a reset using software with no improvement. Then wiped cache but still no joy. Then wiped cache and hardware reset. Finally disabled all apps and forced stopped a few more. Put the phone in airplane mode but despite that the phone is drains 10 %per hour with the phone not being used.
No apps running on the battery usage screen the only thing shown is device idle 1 %. .
I cant understand how dropping the phone can cause the battery to malfunction . Any ideas or suggestions ? Or something else I should be trying.
I wish it was easy to change the battery but that is not the case . I just wanted to see if anyone else has suggestions before I go down the route of replacing the battery.
Many thanks in advance.
Can
Try flashing stock 5.1.1 ROM via odin.
Thanks for the reply, It is already running android 5.1.1 baseband version G920FXXU2BOFJ . I dont understand the rest.
Do you think it worth reflashing the phone still ? Happy to provide more information.

[HELP] H60-L04 Battery drain (20h in stand-by mode)

Hi all,
I am facing some battery issues for a month now. It dropped suddenly from 3 days autonomy to 20 hours and can't finf the reason.
Tests I did
0) Identify apps consuming battery (google service and so on...). Did many changes but at the end same problem.
1) Update from B521 to B860 (OTA)
From now on, all tests are donr without any additionnal applications
2) Wipe cache + wipe data
3) Downgrade to B521 (first B800 then B521)
4) Test in stand-by mode. Still having the issue! This is wierd to me. Battery drains exactly the same with phone in stand-by mode or not!
5) Test with different SIM cards
6) Test forcing 3G/2G (no 4G). A bit better (about 1 day without using the phone)
8) Test without SIM nor google account connected... same issue
Any ideas?
Edit : BetterBatteryStats-2016-08-14_144200164.txt file uploaded
Change to default theme and test again.
Olgmo said:
Change to default theme and test again.
Click to expand...
Click to collapse
Thank you for your suggestion.
I'm currently running "Spectrum" theme. Which I guess is the default one as I haven't change anything since reinstall.
I'm facing battery problems since I'm running Marshmallow...
In battery settings it shows that the display is draining battery the most. There's no specific app shown.
If I get 2 and a half hours of screen on time I can be happy...
Sorry for not having an answer but I'm feeling with you.
Just installed "Better Battery Stats" and "Wakelocks detector lite" even if I am not rooted (followed tutorials for non rooted devices).
Hope I get more info tgis way.
I'll post results for experts analysis
Just uploaded better battery stats dump after first full discharge (see 1rst post)
If someone can have look, as I can't see anything strange...
I guess it is the update, it seems it's not fully optimized yet.
2pointDooj said:
I guess it is the update, it seems it's not fully optimized yet.
Click to expand...
Click to collapse
I downgrade to B521 and even B390. Same problem!
Do you think I have a hardware issue.
Battery tools says battery is "good".
Is anybody see something stange on BBS attached on 1st post?
Hello, I hope I can help with this information. i've been all day with airplane mode and just Wi-Fi on and with 3h 36m of screen on time. The second picture shows how the system is half of the time awake and the other half in deep sleep. I always need to charge this phone every night, because when I'm at home I'm almost always below 20% of the battery. I'm at the latest version B860, but I've have had this battery life since I bought this phone like three months ago.
Vicioxis said:
Hello, I hope I can help with this information. i've been all day with airplane mode and just Wi-Fi on and with 3h 36m of screen on time. The second picture shows how the system is half of the time awake and the other half in deep sleep. I always need to charge this phone every night, because when I'm at home I'm almost always below 20% of the battery. I'm at the latest version B860, but I've have had this battery life since I bought this phone like three months ago.
Click to expand...
Click to collapse
Hello Vicioxis,
In my case I used to have at least 2 days without needed to charge the device. It changed suddenly to 20h max without change the way I use the phone.
Actuality, it doesn't seems to change anything wether I'm using the phone or not...
I added some thumbmails and a new BBS dump file in case somebody sees something wrong:crying:
As you can see, the device is mostly in deep sleep but I have a lot of wakelocks!
Has anyone here installed Kangvip ROM or the stock or any other? Also I feel the smartphone almost always warm at the back-right. Is this normal? Should I try to install any custom ROM to see if this improves?

A5 2017 awful battery drain while idle!! I need serious help!

First of all, I am new to Xda so I am not sure if this is the right section for this post. So let me start. Bought this device from samsung last May here in the Philippines. Everything worked fine. I rooted it after a month and re-flashed the stock firmware from sammobile immediately after rooting. Nothing changed. Battery was so good. Last august 12, I flashed the first ever nougat firmware for a520f, the russian firmware. Battery was still good in the first 2 weeks but after that my phone keeps draining battery like hell while doing nothing!! I ignored it for a while coz i thought that its just a bug or the battery was not calibrated properly. But after a week, I got worried. I sleep with 100% and after I wake up, only 65% was left. It drains 5% an hour and it's pretty awful. I couldnt enjoy my phone especially after school. I go home with only 20% or below with 2 hrs SoT. Couldnt resist the problem thats why I did a full factory factory reset including the cache partition. Was excited after resetting coz i thought the problem will be fixed but unfortunately, it wasn't. I was confused and didnt know what to do thats why I flashed a different firmware. The Cyprus version of Nougat. But still, the battery drain is still killing my device. After 2days I flashed the Indian version of nougat and STILL NOTHING HAPPENED Phone still drains 5% every hour. Did everything I could. Rollbacked to marshmallow (ph firmware which was my original firmware). So im back at mm and im hoping that the drain is gone but still, it's killing me. Dont know what to do. I updated my a520f to nougat via OTA. But still nothing happened tried rooting, still nothing. I really need help. I think there is a bug in my phone's deep sleep mode that causes it to be awake even when the screen is off. Please help me guys. I did everything and the batter drain is killing me!!
Ps: i tried safemode, ultra power saving and more stuff but still the battery is drained while idle.
Note: Battery is good when im using the phone

OnePlus 7 Pro battery drain

HI all,
I need help figuring out what drains my battery, it drops from 100 to 79% over night which is too much of course. I tried factory reseting but the issue persists. I'm on the latest firmware, rooted with magisk 19.2, have a ton of apps but none indicate battery drainage in the battery settings so I installed betterbatterystats and hope someone can tell me what's the issue
btw another issue that I had on my last phone as well, I get randomly three short vibration without any nottification, as it was present on the last phone like it it now it must be related to an app, how to figure out which one?

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