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I installed cm11 on my s2 a while ago using the installer and since then im trying to figure out the reason for the huge battery drain. Cm works great but it drains the battery in an average rate of 19% per hour (a special app did the math,and i can clearly see for myself ). I dont do anything more than music, surfing and whatsapp. Android stats usually say the screen is the no1 battery drainer. Android os second.
I searched the internet and tried every possible tip there was. IMO the only thing I hadn't tried is flashing different modem and different kernel (didn't find good guides for it and was afraid to brick the device)
What I have tried:
1. Flashed neatrom just to compare. A little improvement but still not like old days and of its not a good performance like cm.
2. Went back to cm through recovery backup and Used battery stats, taking permissions away from every app with a redundant wake/cpu lock.
3. Got new battery, assuming the problem may have to do with an old battery (bought the device 2yrs ago)
4. Calibrated battery both with the app and also using the manual trick (chrage while phone off, take batter out, wait five mins and put back in).
5. Tried different governors.
Might be forgetting other things. Nothing works!
What can I do? I really wanna use cm and not get lost flashing less good roms.
Thanks
This device uses an old Exynos SoC optimized for Android 4.1, In new versions is normal battery performance loss because there is more consumption of resources
It also warms up and all.... You recommend flashing older version of cm?
Globboxxx said:
It also warms up and all.... You recommend flashing older version of cm?
Click to expand...
Click to collapse
Yes, only if you really need more battery life. I have a Galaxy S Advance, who died in the 4.1, Battery life in 4.4(CM) is 30% lower than the official 4.1.
Hi! I've been reading this forum on and off for few years, but never actually posted. Hope someone here can help me sort out my issue, thanks in advance!
Basically, I've flashed a cm13 via custom recovery on my second phone - Xiaomi Mi4, and I'm having all sorts of issues with it. I bought the phone in China, and for a while
used the stock MIUI interface, but I hated all the bloated apps and weird pop-up advertising, so decided to flash. it was the first time i've attempted it, so it took some
time to figure it out
My two main issues with cm13:
1. It crashes and restarts two/three times daily for me. I mean, I've cleared cache, I basically have no apps on the phone (apart from few messaging apps and facebook).
Is it just because it's an early cm13 build, or it's a nature of custom roms? I'm wondering if switching to a snapshot cm12 build would be better? I don't really care for
android 6 features on this phone that much, I just want a stable experience.
2. The charging became uber slow, painfully so. On MIUI it'd charge to 100% in about 3 hours or so. On cm13 it takes 3-4 hours to get to 30-40%! Never seen anything like
this. Also, if the battery depletes to 0%, the phone wouldn't turn on, even plugged in for charging. It'd turn on after an hour or two into the charging process. Seems weird,
as every other android phone I've owned previously would turn on even with 0% battery if I'm plugged in.
Anyone else experience any of the listed issues? Is it just an early build, or I've done something wrong in the flashing process? I really just want a stable simple os, no advanced
features or whatever, just need it to work
Thanks!
I have been using latest nightly.. No issues no reboot.. Charging time is 3hr
mmrx said:
I have been using latest nightly.. No issues no reboot.. Charging time is 3hr
Click to expand...
Click to collapse
Thanks for reply! Would you mind telling me which gaps you've used for your build? I remember I had some sort of an issue with few gaps
I tried, I think only the smallest package worked for me. Maybe that's the issue and something in the gaps i've installed freezing/rebooting my os?
Thanks
Hello everybody,
about two months ago, I had an issue with my installed ROM on my Redmi Note 2 Prime (I think it was this one: http://forum.xda-developers.com/redmi-note-2/orig-development/rom-cyanogenmod-12-1-t3288916 ). I decided to try out another ROM so I installled Bule's Mokee ROM ( http://forum.xda-developers.com/red...nt/rom-cm-12-1-mokee-bule-mokee-blue-t3328382 ). After a few days with this ROM I recognized a big battery drain while screen off so I installed BetterBatteryStats to get some more informations. It told me that about 50-75% of the time my CPU was running at 800mhz instead of deepsleep (at a normal day with about 1-2h of Screen-On-Time). It didn't look to me like something is creating a wakelock though (but maybe I am just unable to see this). I tried the next ROM: Daniel Pinto's CM12.1 (http://forum.xda-developers.com/redmi-note-2/development/rom-unofficial-t3310551) and again the same issue! I tried a full wipe of my internal storage, did not install xposed and did not install any titanium backup. The battery drain didn't go away. So i flashed another ROM: SlimMIUI V7.1.3.0 ( http://forum.xda-developers.com/redmi-note-2/development/rom-slimmiui-dev-stable-t3296594 ) and suddenly there was no more screen off battery drain! This went well for about three weeks and now I am facing the old problem again! Please tell me what I am doing wrong since I don't believe it's a ROM-related issue.
I installed these apps (according to MIUI):
9gag
AdAway
Android System WebView
Antutu 3DBench
Antutu Benchmark
AquaMail
BetterBatteryStats
BikeComputer
Burning Series
Chrome
DB Navigator
Dropbox
ES Datei Explorer
Google Play Store
Google Play-Dienste
Google-Tastatur
Greenify (wasn't installed before SlimMIUI)
GuitarTuna
Hacker's Keyboard
Hearthstone
irplus
Maps
Messenger
MX Player
mydealz
No-Frills CPU Control
Nova Launcher
Open Camera
PaderSprinter
QuickPic
scondoo
SleepTimer
Spotify
SuperSU
Telegram
TeslaUnread
Titanium Backup
Twitch
Unified Remote Control
Wakelock Detector Free
WhatsApp
Youtube
What I have tried so far:
- changing ROM (clean flash)
- not installing xposed
- not using old backups
- changing the battery
- using airplane mode
Also, I wonder why there are these gaps in the battery history since I didn't reboot yesterday...but these gaps don't appear every day.
Please help me to fix this really annoying problem and make my RN2 great again!
Thanks,
Kooneybert
The biggest drain comes from all the Xiaomi bloat. Read this thread for details on how to reduce the bloat. In my experience, the second main culprit is WhatsApp. I've had to stop it from giving sound notifications (or even vibrating) when messages come in. Now, I have between 90%-95% deep sleep on idle. Basically, anything that turns on audio could be a problem, because sometimes audio doesn't go off afterwards.
You might want to try GSAM Battery Monitor for more information about what is eating up your battery.
DarthJabba9 said:
The biggest drain comes from all the Xiaomi bloat. Read this thread for details on how to reduce the bloat. In my experience, the second main culprit is WhatsApp. I've had to stop it from giving sound notifications (or even vibrating) when messages come in. Now, I have between 90%-95% deep sleep on idle. Basically, anything that turns on audio could be a problem, because sometimes audio doesn't go off afterwards.
You might want to try GSAM Battery Monitor for more information about what is eating up your battery.
Click to expand...
Click to collapse
Thx for your reply! The problem is not MIUI-exclusive. CM 12.1 from Daniel Pinto is pretty slim but gave the same result (from the first day on).
Whatsapp can't be the only problem since all my friends use it and nobody have this problem (some of them also even have a RN2). Also, my phone is in silent mode almost all the time so no app is allowed to make noise or vibrate.
I just installed GSAM Battery Monitor but I don't know how to use the app/read the provided data. I could use some help there, too.
Kooneybert said:
Thx for your reply! The problem is not MIUI-exclusive. CM 12.1 from Daniel Pinto is pretty slim but gave the same result (from the first day on).
Whatsapp can't be the only problem since all my friends use it and nobody have this problem (some of them also even have a RN2). Also, my phone is in silent mode almost all the time so no app is allowed to make noise or vibrate.
I just installed GSAM Battery Monitor but I don't know how to use the app/read the provided data. I could use some help there, too.
Click to expand...
Click to collapse
You can only be sure if you have a really skinny ROM whereby all the unnecessary Xiaomi stuff has been removed. There are all sorts of things going on in the background - including things embedded in the boot image.
There are also possibly optimisation issues with the kernel. All the ROMs seem to depend on the same binary kernels, since there is no GPL release of the kernel source code. You might want to try one of the skinny boot images by @jajk
As for GSAM, the best to learn is by trial and error (tip: tap on everything visible to see where it leads to, and what information it gives you).
DarthJabba9 said:
You can only be sure if you have a really skinny ROM whereby all the unnecessary Xiaomi stuff has been removed. There are all sorts of things going on in the background - including things embedded in the boot image.
Click to expand...
Click to collapse
...on all three ROMs? Only for me? With this effect? On some days, it reduces my battery by 50-80%! Hard to believe it is not a bug. Also, SlimMIUI has reduced Xiaomi-Stuff, Daniel Pinto's CM 12.1 looked even more clean to me.
DarthJabba9 said:
There are also possibly optimisation issues with the kernel. All the ROMs seem to depend on the same binary kernels, since there is no GPL release of the kernel source code. You might want to try one of the skinny boot images by @jajk
Click to expand...
Click to collapse
Aren't there different kernels out there for the RN2? Bule's Mokee-ROM uses a modified kernel e.g. Does every ROM come with a certain kernel or may it be applied from the ROM before? So maybe I am still using the kernel from Bule's Rom with my MIUI?
DarthJabba9 said:
As for GSAM, the best to learn is by trial and error (tip: tap on everything visible to see where it leads to, and what information it gives you).
Click to expand...
Click to collapse
This will help me to read the information but it won't help to understand them, too. What do you think about this:
Kernels: You can't compile a custom kernel without the Xiaomi kernel source code. All you are left with is tinkering with ramdisk in the boot image
Screenshots: the one on the right shows what is sucking your battery; the biggest culprits are the Xiaomi kernel and Google ...
DarthJabba9 said:
Screenshots: the one on the right shows what is sucking your battery; the biggest culprits are the Xiaomi kernel and Google ...
Click to expand...
Click to collapse
...is this normal? The Kernel is the biggest battery sucker on my tablet aswell (which still has great battery). What do you think about the 8,5h of wakelock time produced by the kernel? If this is the problem, what can I do to solve it?
Kooneybert said:
...is this normal? The Kernel is the biggest battery sucker on my tablet aswell (which still has great battery). What do you think about the 8,5h of wakelock time produced by the kernel? If this is the problem, what can I do to solve it?
Click to expand...
Click to collapse
A "screen awake" of approximately 50% seems to me to be highly excessive (at least, if the phone was mostly idle). In nearly 12 hours, I have a screen awake of 55 minutes - so 8 hours in 15 hours seems strange. How exactly were you using your phone during this 15 hour period?
Perhaps the custom boot images by @jajk might help (see the first link in http://forum.xda-developers.com/redmi-note-2/general/roll-skinny-miui-t3309873). I am currently on v714-15 of the custom boot image.
Sounds like you may be having issues similar to what I was dealing with not too long ago, but my 'solution' was to install Bule's Mokee (still don't know why this ROM worked where so many others failed). Daniel's CM 12.1 and Xiaomi.eu were both giving me significant drain with and without the screen on to the point where I was sometimes finishing the day with an hour and a half of screen on time and ~20% battery. Now I'm getting up to double that.
One thing I can recommend is using MiFlash/Fastboot to do a total reset from scratch. Didn't really work for me, but you may be different.
Other than that, although it's tedious, you may have to install 1-3 apps per day after a fresh install to see if your battery holds at first and then dies sometime after installing certain culprits. It takes forever, but at least this helped me when I moved to Mokee to make sure that it wasn't any of my 'vital' apps that were causing me issues.
Best of luck!
Funny thing that the Mokee-Rom did SOLVE your problem. In my eyes this Rom was the beginning of my problems.
beokabatukaba said:
One thing I can recommend is using MiFlash/Fastboot to do a total reset from scratch. Didn't really work for me, but you may be different.
Click to expand...
Click to collapse
What is the difference to using TWRP?
I will try the Mokee-Rom tomorrow. Since I never used MiFlash/Fastboot before I won't use it until you tell me that there is a difference compared to doing a full wipe with TWRP.
I tried flashing the Mokee-Rom again but the problems go on. I installed very few apps and the battery is still very bad. Today I had 18 minutes of SOT and though I lost 14% in a few hours. This time it was caused by Whatsapp:
It always seems that some apps just don't like to stop doing something but it's random which app is the problem.
I am totally running out of ideas so please help me guys!
I'm on Mokee and satisfied with battery, this rom have less problems than other (for me). First of all i have installed MobileRadioActiveFix with xposed, then SmartNetwork to turn off wifi while my screen is off. I've got few other things but right now i've got over 4h SOT so it is not bad score.
i have the same problem! it happens with flashing severals ROMs (mokee by bule?) and starts battery drain with all ROM, it never goes... is not the battery, the cable or the rom..... i dont know im disperate... the sot changed from 4-4.5 h to 2-2.5 h... with all ROM, please help us and sorry for my bad english
Well i had situation that my SOT suddenly got down but i was still on march rom. After update to latest version without wipe it is ok right now.
Have you tried with wiping all with internal memory? Maybe something is there still and that is making a problem.
Another thing that came to my mind: have you changed build.prop and have copy of it? If so, delete it. I had some problems becuase of that.
Mauelith said:
Well i had situation that my SOT suddenly got down but i was still on march rom. After update to latest version without wipe it is ok right now.
Have you tried with wiping all with internal memory? Maybe something is there still and that is making a problem.
Another thing that came to my mind: have you changed build.prop and have copy of it? If so, delete it. I had some problems becuase of that.
Click to expand...
Click to collapse
every rom i have flashed was a clean install (full wipe of internal) after latest miui update, when the phone shut down at 0%, i put off the battery for 10 min, after i put back and the phone was at 19%!! now is on charge... maybe the problem is solved.. i will post if it is solved (sorry for my bad english)
I had that problem with earlier phone and it drived me crazy. I was not able to find what was the cause unfortunatelly. Phone was given to service point to install branded rom (it was not available for public). Right now i do not have problems like that, if i have some i'm able to find solution somehow. Although what i wrote helped me when i saw SOT problem.
problem persists... is there a method/app to calibrate battery that works?
AngelHxH said:
problem persists... is there a method/app to calibrate battery that works?
Click to expand...
Click to collapse
Not that I know of. I`m facing the same issues like you here.
You can try:
-discharging until the phone shuts off
-charge it in OFF mode until its full
-disconnect charger, put battery out and in again
-connect charger, charge it to 100% again...
repeat until it shows 100% when connecting the charger.
For some ppl this seems to work.
Please let me know if you find out something!
There are lots of ppl out there with exact the same issue!
BR
EDIT: Installed PSYROM V3 for testing purpose right now. Lets see how it does with skynet and a freshly calibrated Battery with the internal calibration tool of the rom. I`ll give feedback on monday.
Update to my issue:
-I did a full wipe (including internal memory)
-Installed PSY ROM V3.0 and Skynet
-Wiped cache/dalvic
-Startet the phone, installed my apps etc
-Charged it to 100%, waited 20 more minutes
-Did the Battery calibration with the internal calibration tool (everything is described in psy mans thread)
-Did a reboot
So far there is no Battery Drain, after the (long) reboot, wich took around 5-10min because miui is optimizing apps etc the phone came up with 97% and stayed there for almost an hour now.
I´ll give you guys feedback next week. Hopefully we get this sorted out.
You can try Angels & demons ROM v8.0 it is providing me with great battery life, so much better than stock or stable version of MIUI. I use Gsam battery monitor, and I have not faced that issue so far.
Hi there!
I love fresh stuff so updates of ROM, kernel and firmware are must have for me. For the better and for the worse. It happened for the worse. I've been waiting a year for stable pie roms to appear that have zero screen wake delay and Syberia was the only room with EAS support. I thought why not. So flashed Syberia Latest in may of 2019 and latest stable, global firmware from xiaomifirmwareupdater. I was very satisfied with Syberia's experience and even more it's kernel performance that I didn't have to flash a custom kernel. I've been using the rom till yesterday for about 3 months and always flashed newer updates of Syberia and opengapps pico. My mido device started to drain battery much faster. Even that much that for example when I wake up at 6:30 am and arrive at work for 8:00 10-20% battery juice is already drained even though all I did was read comics in a simple reader. Tried to solve the issue but after all my mido device is 3 years old. got the conclusion that my battery sadly went broke. Still it was extremely annoying for me that I can't read comics for more than 7 hours during my shift (I'm a seasonal pool warden so I do nothing from 8:00 to 20:00) because my phone's battery dies no matter how I try no to let it. I've had enough so I changed rom and even firmware. Flashed latest China stable firmware which arrived in july and latest Pixel Experience. See wonder now my battery drains way slower and the phone shows me that it can run for 1 day and a bit more from 100% to 0%. I'm so happy and relieved that there isn't anything wrong with my battery.
I want to find out what caused the extreme drain. I really do. Could you guys please help me find the cause? Was it the previous firmware? Syberia updates? The stock kernel? The opengapps packages?
I have a few clues but I hope there are others with more knowledge on battery factors. Thanks a lot in advance.
Maybe kernel and apps usage. You should check the in battery statistics it may mobile network standby.
iaintken said:
Maybe kernel and apps usage. You should check the in battery statistics it may mobile network standby.
Click to expand...
Click to collapse
I used better battery stats all the time and it showed nothing unusual. Not on Syberia, not on PE. Furthermore I used Migrate app so I have every single app on PE that I had on Syberia with exact same settings. Perhaps the high battery drain was caused by one of Syberia's system app? If yes shouldn't I've been able to see it in BBS? If it was caused by an user installed app shouldn't the problem migrate to PE as well with the apps? I still think firmware caused the battery drain but I can't belive something certainly based on my gut.
iaintken said:
Maybe kernel and apps usage. You should check the in battery statistics it may mobile network standby.
Click to expand...
Click to collapse
Perhaps yes. Perhaps no. I use BBS all the time and it never showed me unusual activity on Syberia. Furthermore I used migrate app so I have every single app on PE that I used on Syberia with the exact same settings but there is no bettery drain present. If user installed apps were the cause of battery drain shouldn't the drain migrated with them as well?
I still think it could have been a firmware issue.
greenys' said:
Perhaps yes. Perhaps no. I use BBS all the time and it never showed me unusual activity on Syberia. Furthermore I used migrate app so I have every single app on PE that I used on Syberia with the exact same settings but there is no bettery drain present. If user installed apps were the cause of battery drain shouldn't the drain migrated with them as well?
I still think it could have been a firmware issue.
Click to expand...
Click to collapse
Try rr oreo once excellent battery life
iaintken said:
Try rr oreo once excellent battery life
Click to expand...
Click to collapse
I'd like to. I really do but I spent years on Oreo. Loved it but it was so hard for me to get used to Pie and I've waited like for a year for a working Pie rom that didn't had any issues not even screen wake delay. Now that I've migrated to Pie I'm not planning to go back...
greenys' said:
Now that I've migrated to Pie I'm not planning to go back...
Click to expand...
Click to collapse
Did you ever try to use a bugreport + Battery Historian (Google's own tool) to check what is using your battery? I put together a small article about it on Telegra.ph the other day. Which MIUI ROM's firmware are you using actually at the moment? Some ppl. says that in less LTE covered areas the firmware derived from global stable ROM V9.6.3.0 does a really good job. Did you try to up- or downgrade the firmware? Did you ever try to disable LTE and use 2G/3G preferred or 2G/3G auto mode?
crok.bic said:
Did you ever try to use a bugreport + Battery Historian (Google's own tool) to check what is using your battery? I put together a small article about it on Telegra.ph the other day. Which MIUI ROM's firmware are you using actually at the moment? Some ppl. says that in less LTE covered areas the firmware derived from global stable ROM V9.6.3.0 does a really good job. Did you try to up- or downgrade the firmware? Did you ever try to disable LTE and use 2G/3G preferred or 2G/3G auto mode?
Click to expand...
Click to collapse
No. I never hear about those tools. All I saw over the web was better battery stats and it was widely recommended. So I used that. I was using 2019/05/16 china firmware while the battery drain was noticeable. Now I'm on 2019/07/19 china firmware and the battery drain is gone. I dunno. Since I didn't find anything about cellular network signals causing the battery drain I didn't experiment with it at all. It's constantly turned on. Like for a year now. I'll try 9.6.3.0 stable firmware and report back how battery drain is.
greenys' said:
No. I never hear about those tools. All I saw over the web was better battery stats and it was widely recommended. So I used that. I was using 2019/05/16 china firmware while the battery drain was noticeable. Now I'm on 2019/07/19 china firmware and the battery drain is gone. I dunno. Since I didn't find anything about cellular network signals causing the battery drain I didn't experiment with it at all. It's constantly turned on. Like for a year now. I'll try 9.6.3.0 stable firmware and report back how battery drain is.
Click to expand...
Click to collapse
I would never use the chinese firmwares on a global phone, especially when your are not in China.. I had issues in the past with some chinese firmware versions but never had any with the global ones (here in Hungary we use different carrier technologies than companies in PRC and as far as I know global is optimised differently for a different market, not for China).
crok.bic said:
I would never use the chinese firmwares on a global phone, especially when your are not in China.. I had issues in the past with some chinese firmware versions but never had any with the global ones (here in Hungary we use different carrier technologies than companies in PRC and as far as I know global is optimised differently for a different market, not for China).
Click to expand...
Click to collapse
I see. Good to know. I've been using chinese firmware for a good while now without issues. But I flashed the adviced 9.6.3.0 global stable now. I'll take your advice and stay away from China firmware. It'd only make sense.
Hey, I have a redmi note 4 snapdragon version and I have flashed aosp extended rom and franco kernel in it, but I am getting a very poor battery life, hardly 1 hour screen on time and the phone shuts off by the time battery gets to 30 to 20%. My phone is rooted too and i am not using any kind of battery saver app.
:crying:
I think this is an hardware issue but, I am no expert so please help me on this and let me know what should i do. Thank you.
Ebebeeh said:
Hey, I have a redmi note 4 snapdragon version and I have flashed aosp extended rom and franco kernel in it, but I am getting a very poor battery life, hardly 1 hour screen on time and the phone shuts off by the time battery gets to 30 to 20%. My phone is rooted too and i am not using any kind of battery saver app.
:crying:
I think this is an hardware issue but, I am no expert so please help me on this and let me know what should i do. Thank you.
Click to expand...
Click to collapse
When did this problem start?
Did you check the which apps are draining your battery?
Noter2017 said:
When did this problem start?
Did you check the which apps are draining your battery?
Click to expand...
Click to collapse
The problem started probably when i rooted my phone on stock rom(miui 10), the very next day i cleaned every thing (including my firmware accidentally) to flash custom rom, then after flashing i found out that none of the hardware components are working and i posted a thread about it and as per the answers i flashed a latest chinese firmware for redmi note 4.And it worked except i started noticing an awfully bad battery backup(hadn't noticed before as all this happened in just 2 days. (as a matter of fact the battery went down 5% as i wrote this, oh 6 now!)
HELP
Ebebeeh said:
Hey, I have a redmi note 4 snapdragon version and I have flashed aosp extended rom and franco kernel in it, but I am getting a very poor battery life, hardly 1 hour screen on time and the phone shuts off by the time battery gets to 30 to 20%. My phone is rooted too and i am not using any kind of battery saver app.
:crying:
I think this is an hardware issue but, I am no expert so please help me on this and let me know what should i do. Thank you.
Click to expand...
Click to collapse
I had similar problems.
I clean flashed the latest OFFICIAL AOSPExtended, Ethereal Kernel and Global STABLE firmware.
Haven't had any issues since.
Maybe it works for you?
Ebebeeh said:
The problem started probably when i rooted my phone on stock rom(miui 10), the very next day i cleaned every thing (including my firmware accidentally) to flash custom rom, then after flashing i found out that none of the hardware components are working and i posted a thread about it and as per the answers i flashed a latest chinese firmware for redmi note 4.And it worked except i started noticing an awfully bad battery backup(hadn't noticed before as all this happened in just 2 days. (as a matter of fact the battery went down 5% as i wrote this, oh 6 now!)
HELP
Click to expand...
Click to collapse
Cleaning everything, as you stated, including the whole firmware,
You answered your whole thread yourself, just flash stock frimware, then flash AEX like flashing any normal ROM.
I have the same problem, the battery die after 1h screen, when the battery Is on 20% the device shutdown,help me pls, i have rr with franco kernel.
hi OP. base on what you are describing, it looks like your battery is dying... nothing to do with the OS. be careful 'cause chinese batterys (like 70%) turn out to be real sh*t (on my own experiance). consider to replace battery from a confiable retailer or change device.