Database Users

Anyone else having partial wakelocks/worse battery life after JB OTA?

Just wanted to throw this out there and see if anyone happens to be getting a lot of partial wakelocks without screen on or if your overall battery life has decreased since installing the 4.1.1 OTA. When I first purchased the phone, I had very very few incidents under my battery info where I would have a session awake without the screen on. Post update, seems like I've got a ton of really small wakes with no screen activity. I have turned off Google Now and every GPS/Location setting I could find. Downloaded Better Battery Stats today so I'm going to see if I can get some better info on what's going on, new to the program though and I don't understand most of the info that it reads.
Prior to the update, letting my phone sit overnight I would maybe see a 3 or 4% drop over the course of say six or seven hours. Now I'm seeing a 3 to 4% drop in battery per hour, more if I'm actively using the phone. I'm going to do more testing, specifically overnight to see how it fairs. Just wanted to throw this out there and see if anyone else is experiencing any of these issues.
:good: -Matt

I am noticing the same thing. Don't know the cause. Keep sync off all day.
Sent from my Sony Tablet S using xda premium

Im getting the fast dormancy symptom again... no matter what i tried I cant fix it... always connecting as HSPDA+ even if im not using......anyone got any ideas?

Hmm, might try a factory reset and not installing any apps at all and seeing how it fairs. By chance, do you guys have any of the stock bloatware apps disabled? Not rooted/Frozen, but just disabled via the apps menu? Wondering if perhaps disabling any of them might be a trigger.
-Matt

sombody said:
Im getting the fast dormancy symptom again... no matter what i tried I cant fix it... always connecting as HSPDA+ even if im not using......anyone got any ideas?
Click to expand...
Click to collapse
for me freezing modem fast dormancy monitor and modem stats service appears to fix fast dormancy

Yes I am noticing it to. I disabled Google now and it got a bit better.
Sent from my XT907 using xda premium

Roflwafflez said:
Prior to the update, letting my phone sit overnight I would maybe see a 3 or 4% drop over the course of say six or seven hours. Now I'm seeing a 3 to 4% drop in battery per hour, more if I'm actively using the phone. I'm going to do more testing, specifically overnight to see how it fairs. Just wanted to throw this out there and see if anyone else is experiencing any of these issues.
:good: -Matt
Click to expand...
Click to collapse
Yea i'm getting that. I'm using 13% overnight now vs like 4% before. Not sure about the wakelocks though.
Some random things I've noticed are the blur widget resets itself alot. And the transition to the settings window on the left is laggy. How would one revert back to ICS? Google Now is not that worth it to me and the phone was smooth enough before. I'd take the battery life over the new features.
I did buy a second Razr M for my girlfriend that's still on ICS. I guess I can do a side by side compare this weekend.

I am loving the update.. only issue so far is fire fox crashing..no battery issues. Must be settings guys..
sent via xda premium with nexus 7-Xbox live-loneleppard add me

i don't think it is setting i have all my syncs to manual, and i have been noticing a lot worse battery life since the update i would have 18+ hours or so off charger with pretty heavy texting / game / some voice calls. Now i'm not getting close to that. I just disabled the fast dormancy service to see if that helps any, ill post back results

Just did a factory reset today, I'm not going to disable any of the bloatware this time, and I only installed BetterBatteryStats as well as updated all the default apps in the Play Store. Going to see if I get any wakelocks this time around.
Last night, after a period of 6 hours, I had over an hours worth of partial wakelocks from AlarmManager (subheading Phone).
-Matt :good:

I disabled Google Now and my phone used 7% battery over 6 and a half hours. A little bit better.

A factory reset (annoying as it is) helped me considerably. My phone was also seriously laggy before the reset...slow like my old DX on GB, much worse than factory ICS. It finally feels smooth now, like JB should.
Still seeing a lot more wakelocks than on ICS, but it doesn't seem to be draining the battery like it was before the reset. I also removed or disabled a couple of apps that seemed to be serious offenders (Accuweather was one).

Did a reset on mine as well and did not restore from Google backup. Still seeing wakelocks, but as someone noted earlier they don't seem to be draining the battery too much. With that said, the battery does still seem to tick down much faster than on ICS. One thing I did find that helped, although honestly it's not really a solution, is turning off data use when I'm out and about just answering texts and such. If I have data/wifi disabled, I'm getting closer to the battery life that ICS was giving, but then again who wants to go around having to toggle data on and off every time you want to look something up.
-Matt

Is maps showing up on your battery stats and you're not using it? If so, simply open the application. It should say "updated to the latest version" or something like that. If this is happening, this will solve your battery problems.
Happened on my Galaxy Nexus and was happening initially for this phone too. Hope this helps someone.

Modem Fast Dormancy Monitor Service Not Responding.
Me and my wife both updated to KitKat on our Razr M's. I like it so far. The pop up about modem fast dormancy bothers both of use. When you look under battery, it uses more battery than other apps. I force stop it, reboot and it comes right back. A chat on Motorola web site sugested to wipe partition cache. The link that was provide gives the wrong instructions. KitKat using the power and volume keys has changed. They forgot to tell some people. That didn't work! I sent a long email to Motorola telling them that someone messed up or they did this for a reason! I guess if you get mad enough you'll just buy a newer phone. If that one thing is fixed, we would both be happy. The white background in text take some getting use to also. I hope Motorola will help us, but I kind of think Razr M's will be considered OLD! They are betting we will junk them for a new model.

notrite63 said:
Me and my wife both updated to KitKat on our Razr M's. I like it so far. The pop up about modem fast dormancy bothers both of use. When you look under battery, it uses more battery than other apps. I force stop it, reboot and it comes right back. A chat on Motorola web site sugested to wipe partition cache. The link that was provide gives the wrong instructions. KitKat using the power and volume keys has changed. They forgot to tell some people. That didn't work! I sent a long email to Motorola telling them that someone messed up or they did this for a reason! I guess if you get mad enough you'll just buy a newer phone. If that one thing is fixed, we would both be happy. The white background in text take some getting use to also. I hope Motorola will help us, but I kind of think Razr M's will be considered OLD! They are betting we will junk them for a new model.
Click to expand...
Click to collapse
dude its a 2012 thread
about 4.1.1 (jellybean)
kitkat is 4.4.1 (or something)
thread is supose to be dead&buried

dead and buried
fredsky2 said:
dude its a 2012 thread
about 4.1.1 (jellybean)
kitkat is 4.4.1 (or something)
thread is supose to be dead&buried
Click to expand...
Click to collapse
Sorry! My bad. I didn't notice it was closed. Why do they not take old olds off line.

Sudden drop in battery performance on my Nexus 6P(no rogue 3rd party apps).

Hello everyone!
So I have been having these battery issues since April security patch. the phone gets really warm to the touch even by doing the simplest of things like browsing and watching youtube. Android OS keeps the phone awake 80% of the time and I am only getting 2-3 hours of use throughout the day. Restored the phone to factory settings(fresh start, nothing restored) three days ago and still the same issue. Android OS drains the battery life even though I made sure that only google apps are installed on the phone.
But today things got even weirder. I disabled Google Now and location services as a test and the battery drain and heat issues were gone temporarily. I was getting a great battery performance from morning to afternoon. I check my battery stats and I notice that Google services mysteriously drained 17% of my battery life and that it's been running for 21 days straight? That's impossible since I just did a fresh reset to the phone three days ago. I rebooted the phone and that "Google services" drain changed to WiFi instead?! That's crazy!
I contacted Google store support team and they have been really helpful so far. They offered to replace the phone with a refurbished unit, but I don't think I am ready to give up on this phone just yet.
Thank you!

waelalzubieri said:
Hello everyone!
So I have been having these battery issues since April security patch. the phone gets really warm to the touch even by doing the simplest of things like browsing and watching youtube. Android OS keeps the phone awake 80% of the time and I am only getting 2-3 hours of use throughout the day. Restored the phone to factory settings(fresh start, nothing restored) three days ago and still the same issue. Android OS drains the battery life even though I made sure that only google apps are installed on the phone.
But today things got even weirder. I disabled Google Now and location services as a test and the battery drain and heat issues were gone temporarily. I was getting a great battery performance from morning to afternoon. I check my battery stats and I notice that Google services mysteriously drained 17% of my battery life and that it's been running for 21 days straight? That's impossible since I just did a fresh reset to the phone three days ago. I rebooted the phone and that "Google services" drain changed to WiFi instead?! That's crazy!
I contacted Google store support team and they have been really helpful so far. They offered to replace the phone with a refurbished unit, but I don't think I am ready to give up on this phone just yet.
Thank you!
Click to expand...
Click to collapse
I hate to recommend this, but sometimes things go out of wack after a SW update, so a hard reset would probably be needed. I would try that (just start from zero) before jumping into a refurbished phone that might have some other kind of issues. Have you tried a hard reset yet? I see that you did a fresh reset. Did you go through the recovery though? Not just the regular UI. I think it's better to clear cache, and every thing through the recovery (custom or stock).

en28so said:
I hate to recommend this, but sometimes things go out of wack after a SW update, so a hard reset would probably be needed. I would try that (just start from zero) before jumping into a refurbished phone that might have some other kind of issues. Have you tried a hard reset yet? I see that you did a fresh reset. Did you go through the recovery though? Not just the regular UI. I think it's better to clear cache, and every thing through the recovery (custom or stock).
Click to expand...
Click to collapse
I did it through recovery. I have cleared the cache and rebooted the phone several times the past few days. Nothing seems to help at all.

Turn off your google backup.
Sent from my Nexus 6 using Tapatalk

waelalzubieri said:
I did it through recovery. I have cleared the cache and rebooted the phone several times the past few days. Nothing seems to help at all.
Click to expand...
Click to collapse
Wow. Maybe a custom ROM might help? Have you tried that? That's the last thing I would do. Good luck!

Not recommended but I just flashed January vendor and ROM and that has helped my battery life. I. Believe it is the security updates that kill our battery.

shawn1482 said:
Not recommended but I just flashed January vendor and ROM and that has helped my battery life. I. Believe it is the security updates that kill our battery.
Click to expand...
Click to collapse
Is it a widespread issue? Like I said in my post, I saw the decline ever since I got the April security update. The May patch actually managed to make things worse. There seems to be something hidden in the OS that it's draining the battery and causing the awake issues. I haven't tried rooting the device because I lack the experience to do so. I will probably look into it on these forums, but at this point I have tried everything.
Disabling Google now helped a lot and it exposed some sort of a glitch with the stock battery monitoring app. I am not sure if it's hardware or software, but it's certainly not normal. I am tempted to just replace it, but I am afraid that this issue will just plague the new one from Google. I am really disappointed How Google handles updates on this device. I always thought that stock android is most stable version of android, but the software on my old Xperia Z is actually more stable than this. It never had battery drain issues and standby battery life was always great. The battery life on Nexus 6P is actually worse than the Xperia Z even though that phone is 3 years old.

waelalzubieri said:
Is it a widespread issue? Like I said in my post, I saw the decline ever since I got the April security update. The May patch actually managed to make things worse. There seems to be something hidden in the OS that it's draining the battery and causing the awake issues. I haven't tried rooting the device because I lack the experience to do so. I will probably look into it on these forums, but at this point I have tried everything.
Disabling Google now helped a lot and it exposed some sort of a glitch with the stock battery monitoring app. I am not sure if it's hardware or software, but it's certainly not normal. I am tempted to just replace it, but I am afraid that this issue will just plague the new one from Google. I am really disappointed How Google handles updates on this device. I always thought that stock android is most stable version of android, but the software on my old Xperia Z is actually more stable than this. It never had battery drain issues and standby battery life was always great. The battery life on Nexus 6P is actually worse than the Xperia Z even though that phone is 3 years old.
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Click to collapse
I've seen a lot of posts over the months with people having the same problem we are. I came from a mid range LG stylo with a snapdragon 610. I would have 8 hours screen on time daily. Its sad that goggle cant get the same out of their own hardware. Also I have seen that the Note 5 and S7 Edge both get better battery life as opposed to our stock phones. For as much as people praise stock and look down on Touchwiz, they are doing something right over there.

But it doesn't affect everyone and that what puzzles me. Only certain phones are hit by these issues, while other people are getting excellent battery life. I have seen plenty of people post screenshots of 6 hours+ of on screen time. I am lucky to get 3 hours. I think Google should really invest in creating a better power management system into Android. Companies like Sony and Samsung built their own and the battery life on their devices always perform predictably relative to what I am seeing on this phone. I have never witnessed The doze feature kick in since I have bought this phone. Sony had stamina mode since 2013 and it actually worked.

waelalzubieri said:
But it doesn't affect everyone and that what puzzles me. Only certain phones are hit by these issues, while other people are getting excellent battery life. I have seen plenty of people post screenshots of 6 hours+ of on screen time. I am lucky to get 3 hours. I think Google should really invest in creating a better power management system into Android. Companies like Sony and Samsung built their own and the battery life on their devices always perform predictably relative to what I am seeing on this phone. I have never witnessed The doze feature kick in since I have bought this phone. Sony had stamina mode since 2013 and it actually worked.
Click to expand...
Click to collapse
Most of those people posting those outrageous number root and do kernel tweaks. I've gotten at most 6 hours SOT on stock without root. You are right our phones do all react differently to certain circumstances. I don't know if it's feasible to you ,but you should try rooting and trying out a few Roms some help others don't. If you aren't into Roms and decide to root try earlier vendors and stock roms and see it those work. I'm not an expert by any means just my suggestions.

shawn1482 said:
Most of those people posting those outrageous number root and do kernel tweaks. I've gotten at most 6 hours SOT on stock without root. You are right our phones do all react differently to certain circumstances. I don't know if it's feasible to you ,but you should try rooting and trying out a few Roms some help others don't. If you aren't into Roms and decide to root try earlier vendors and stock roms and see it those work. I'm not an expert by any means just my suggestions.
Click to expand...
Click to collapse
Well, the fact that you are having great battery life proves my point. It's either that the quality control of the batteries used on these phones are terrible, or that the software or kernel are corrupted from factory causing these issues. There is no way to fix them by hard reseting the phone so far. I am going to try to flash a stock rom on this device and see what happens. Thanks by the way.

1) Are you rooted? If not, at least do that and install BBS in order to track down what's eating your battery.
2) Probably we'll run into a common problem / bug the last two months.
After unplugging the phone, it seems that the wakelock *backup* runs constantly, does not let phone get into sleep, and runs in the background while using your phone causin battery to drain faster.
3) About battery life. Comparing battery results between two users it has no point, unless you really now his usage pattern. Not only the setup, but which apps of them used most etc.
For example Facebook app is real battery eater. I've seen an hour more SOT without this app.
I can give several examples like this.
Sent from my Nexus 6P using Tapatalk

What should I do....

So I just switched to 7.0 U firmware from 7.0 att.
I have done a lot of stuff to save battery on this phone and still no luck. So far this is what I have today. Not even 2 hours of screen on time and it's almost dead... any helps?
Factory rest and cleared cache several times after switching and no luck

Start the RMA process. You have a bad battery.

Krazie99 said:
So I just switched to 7.0 U firmware from 7.0 att.
I have done a lot of stuff to save battery on this phone and still no luck. So far this is what I have today. Not even 2 hours of screen on time and it's almost dead... any helps?
Factory rest and cleared cache several times after switching and no luck
Click to expand...
Click to collapse
From my experience, you could have an app that is doing the dirty deed. Try to factory wipe without restoring apps, do a basic set up and see how it works.
Also, try going back to the stock AT&T release.

kangi26 said:
From my experience, you could have an app that is doing the dirty deed. Try to factory wipe without restoring apps, do a basic set up and see how it works.
Also, try going back to the stock AT&T release.
Click to expand...
Click to collapse
It's possible, but the screen shot lists the usual top three suspects and only a couple of hours of SOT is abysmal, even for stock.
It's certainly worth a shot going back to stock and installing nothing but the bare essentials, but I'd say there is a better than average chance the device has a hardware problem with those kinds of numbers.

jshamlet said:
It's possible, but the screen shot lists the usual top three suspects and only a couple of hours of SOT is abysmal, even for stock.
It's certainly worth a shot going back to stock and installing nothing but the bare essentials, but I'd say there is a better than average chance the device has a hardware problem with those kinds of numbers.
Click to expand...
Click to collapse
I would rather keep the u firmware with stuff I need and have bad battery then have stock with nothing on it. I was thinking of going back to stock when I switched to U but only the that held me back ass all the bloatware on att. So should I get a new battery?

Krazie99 said:
I would rather keep the u firmware with stuff I need and have bad battery then have stock with nothing on it. I was thinking of going back to stock when I switched to U but only the that held me back ass all the bloatware on att. So should I get a new battery?
Click to expand...
Click to collapse
IMO, the bloat that is on the stock ROM's are somewhat irrelevant now. You may not be able to un-install it, but you can disable it, and in the grand scheme of things has little impact on the device or performance once that's done. Annoying? YES, but......
I'd say if the U ROM isnt performing, ditch it
Again, In My Opinion

kangi26 said:
IMO, the bloat that is on the stock ROM's are somewhat irrelevant now. You may not be able to un-install it, but you can disable it, and in the grand scheme of things has little impact on the device or performance once that's done. Annoying? YES, but......
I'd say if the U ROM isnt performing, ditch it
Again, In My Opinion
Click to expand...
Click to collapse
Updated. Have any idea what can cause this?

Battery life on Oreo

I flashed the stock image and i found the battery life abysmal. Not even a day
7-8 hrs tops with barely any usage
Anyone has experienced the same issue

Give it a few days and see if it improves. Sometimes drastic updates can have adverse effects on the battery
Sent from my Nexus 6P using Tapatalk

I have one of the best battery life on O right now and I'm not pointing fingers to anything but google.
I was excited after hearing "Android Vitals" and they are on point about it.
Try to flash a custom kernel like EX or Flash though Ex's kernel isn't fully committed with the O source code but you may at least try it. On a side note there are still apps out there that aren't coded properly for O which would probably hinder your angler so look out for them a lot.

Thank you everyone for pitching in
Like I mentioned I flashed the stock image and gave it 2 days but as I disconnect the phone from the charger at around 9 AM (100%) , by 3-4 PM I am being left with 30% or less . By 6 PM it starts beeping as it hovers 15%
I barely use the phone at work. I just do occasional messaging (text and whatsapp). I removed all apps except the ones that I really need. No games...etc
I did flash the other day the EX Kernel ( Beta for O) for which I have the paid manager version.
It drives me crazy as it seems to be draining at a very fast rate with no apparent reason.
What's even more frustrating is that the built in battery app doesn't shed much light. The process that takes the most battery is "System" but that's all.
Maybe it's time for a new phone

rainfactor said:
Thank you everyone for pitching in
Like I mentioned I flashed the stock image and gave it 2 days but as I disconnect the phone from the charger at around 9 AM (100%) , by 3-4 PM I am being left with 30% or less . By 6 PM it starts beeping as it hovers 15%
I barely use the phone at work. I just do occasional messaging (text and whatsapp). I removed all apps except the ones that I really need. No games...etc
I did flash the other day the EX Kernel ( Beta for O) for which I have the paid manager version.
It drives me crazy as it seems to be draining at a very fast rate with no apparent reason.
What's even more frustrating is that the built in battery app doesn't shed much light. The process that takes the most battery is "System" but that's all.
Maybe it's time for a new phone
Click to expand...
Click to collapse
Yes, I went back to paranoid nougat, because I got the same
battery experience as you with O. But I'm reading that you use
what's app, do you can play a video if someone sending you one? Since the O previews for me the videos are just loading but not playing, and that's only the case by using android O, doesn't matter if I use what's app or what's app beta.

I got the 2% battery drain bug and sometimes i dont, ive reflashed oreo about 8 times lol, sometimes it dies at 15%..

coremania said:
Yes, I went back to paranoid nougat, because I got the same
battery experience as you with O. But I'm reading that you use
what's app, do you can play a video if someone sending you one? Since the O previews for me the videos are just loading but not playing, and that's only the case by using android O, doesn't matter if I use what's app or what's app beta.
Click to expand...
Click to collapse
I haven't had any issues with any of the apps. Whatsapp works well I can play videos see the pics etc
I think I am going to get back to Paranoid
I read somewhere I needed to flash first the Nougat stock before attempting to put any custom ROM. Is that what you did?

rainfactor said:
I haven't had any issues with any of the apps. Whatsapp works well I can play videos see the pics etc
I think I am going to get back to Paranoid
I read somewhere I needed to flash first the Nougat stock before attempting to put any custom ROM. Is that what you did?
Click to expand...
Click to collapse
No, just my twrp backup, you can stay on latest bootloader and radio. Strange thing with whats app, may oreo doesn't like my internal, if final release come I will complete clean flash with fastboot.
Edit: check latest Pixeldust rom, it's like pa with a bit more useful features

I think my phone may be defective
Even on Paranoid the battery seems bad
The miscellaneous was on top of the list . What does that mean .... ?

Battery update.- Running kylo kernel r9 , working great so far just a few personal tweaks applied.

rainfactor said:
I think my phone may be defective
Even on Paranoid the battery seems bad
The miscellaneous was on top of the list . What does that mean .... ?
Click to expand...
Click to collapse
I'm not sure what you're expecting, give the rom some time and charges to settle battery. How old is your phone? If you don't have patience flash stock image and completely wipe your phone if you think something is faulty.

Well...
I used to get like a day out of the phone . With my minimal usage I would disconnect it in the morning and still have like 30-40% when getting back home in the evening.
All of the sudden one day I was just on my way home and I noticed the phone was off. I tried power it back on but it kept on flashing red as it was totally drained. Since then battery went downhill.
I'm not crazy and I do not have unrealistic expectations but 5 or 6 hours of battery with almost no usage seems a bit off. I gauged just by looking at the numbers being something ridiculous like 10% an hour.
I did wipe and flash the stock few times. Oreo then Nougat
Since the issue persisted I am thinking the phone just went bad.

If your battery is faulty, then it's faulty, that's why i asked how old your phone is. Ain't there battery health apps to take a look how worse it is.

Yeah I think it's maybe 1yr and half old.
I'm starting to evaluate those Essentials and Pixels 2.
Or better get a Pixel 1st gen if they drop low enough

Sounds to me like your battery is worn out. I'm amazed that you got 1.5 years out of it because I've seen posts from people who didn't even make it a year. You mentioned that it's draining 2% at a time and shuts down at 15%, which are pretty strong indicators that your battery is shot.

rainfactor said:
Yeah I think it's maybe 1yr and half old.
I'm starting to evaluate those Essentials and Pixels 2.
Or better get a Pixel 1st gen if they drop low enough
Click to expand...
Click to collapse
Nokia 8 (pure android) is an option too, but I would change the battery, n6p is still a very nice piece of hardware. Essential
is a hype phone til now.

Do you have a trusted source you can share for a battery?
There are so many floating around and I'm not sure about their quality

rainfactor said:
Do you have a trusted source you can share for a battery?
There are so many floating around and I'm not sure about their quality
Click to expand...
Click to collapse
Hard to say, I will run accubattery for week, after a first charge it doesn't look very promising for me too, and my phone is a bit over a year old. may some other users know a better tool or app, but this one doesn't seem to be so bad. Let's see what happens after some charges.
Akku Gesundheit=Accu Health, sry it's german here.
If you search for a replacement there is a thread here on xda
for the 6p, OEM battery or something like this
https://forum.xda-developers.com/nexus-6p/accessories/oem-battery-t3534410
Edit: may you try to do a rma with your 6p, like this lucky guy
https://forum.xda-developers.com/nexus-6p/general/nexus-6p-google-replaced-pixel-xl-t3660808

rainfactor said:
I think my phone may be defective
Even on Paranoid the battery seems bad
The miscellaneous was on top of the list . What does that mean .... ?
Click to expand...
Click to collapse
Same for me, with Oreo it's even worse

Update, kylo kernel r9, works fine however my phone now dies at 5% instead of 15%-20% much better but still.

Where's my battery going?! (Phone won't sleep?!)

HELP!!!
I picked up an H918 for my wife to use on T-mobile USA. Since it was used, I also got one of the extended life 4100Mah batteries to hopefully make it last at least the entire day without topping off the charge. She usually averages around 4 - 5 hour SOT, so this seemed like a good option from what I've read, and fits in the original door so I can use the wallet case she wants with it.
But man, her battery life is TERRIBLE! I checked with Accubattery, and it reports that the battery is charging within 99% of it's 4100mah spec, so I don't think its a bad battery. Yet, she can barely go 12 hours with just under 2 hours SOT before the phone dies!
She is unrooted, running stock Oreo.
I installed GSam Battery Monitor and used their ADB commands to give it permission to record deep statistics w/out root (pretty cool, never did that before). I ran it for a little while this morning. Within 3 hours 40 minutes off the charger, she was already down to 72% with barely any SOT. I'm attaching screenshots of the app usage and doze screen (sorry for the phone-snapped-of-phone picture, it's my wifes phone like I said, so it was easier to just snap with my camera than take a screenshot and send it to myself to post).
Maybe I'm not reading this right, but it seems like something is keeping her phone from sleeping. A big culprit seems to be call services, and in my location settings, I noticed it mention that LG IMS was doing a lot of heavy battery drain with location related inquiries.
I thought maybe it was related to WiFi calling, so I turned that off. Cell reception is average.
2 hours later, she's down to 50% so that wasn't it. I don't know what else to try other than hard reset, but we literally just got this and set it up 2 days ago, and its been like this from day one. I don't see why it would be any different the second time around.

It's likely a junk battery. It's really hard to get a good oem replacement battery.
If you shop Amazon look for a Taeozi 4200 or Shemnz 4200. They both have 2 year warranty and decent reviews here on XDA
The Perfine 4100 is also highly recommend
Any Li-polymer should be better
Sent from my ONEPLUS A6010 using Tapatalk

When I bought my wife's phone it had a battery drain/overheat and wakelock issue as well. I fixed it and haven't had an issue since. Here's what I did to fix it:
https://forum.xda-developers.com/v20/help/absolutely-terrible-battery-life-t3531456/post78654160

clsA said:
It's likely a junk battery. It's really hard to get a good oem replacement battery.
If you shop Amazon look for a Taeozi 4200 or Shemnz 4200. They both have 2 year warranty and decent reviews here on XDA
The Perfine 4100 is also highly recommend
Any Li-polymer should be better
Sent from my ONEPLUS A6010 using Tapatalk
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Click to collapse
I did my homework first and got the Perfine from Amazon, not a no-name junk battery. When I couldn't fit it without removing the sticker, the seller was really helpful and actually offered to replace it after checking first that it fit in *THEIR* V20 at the factory. Really solid customer support. And according to Accubattery, it really is the capacity it says. Or at least within 99% of it (I think it estimated 4080 or something like that). So I don't think that's the issue.
pistacios said:
When I bought my wife's phone it had a battery drain/overheat and wakelock issue as well. I fixed it and haven't had an issue since. Here's what I did to fix it:
https://forum.xda-developers.com/v20/help/absolutely-terrible-battery-life-t3531456/post78654160
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Click to collapse
That's actually really interesting- I did take apart the phone to do the thermal mod thing (wiped off the dried up pink gunk and put a thermal pad there), but it seemed pretty clean otherwise inside when I did. How on earth did you figure out that was the problem?
After speaking with some folks on Telegram, Reddit, and other corners of the internet, I have a different theory. A bunch of people told me to let the rom "settle", that battery life is never good after a fresh format or new rom flash. Honestly, the critical thinker in me says that sounds like nonsense. I've never heard of this before and I've been flashing roms for the better half of a decade. I'd think after it takes the time the load up your apps and settings and configure itself, it would be done. But I Googled it, and it seems to be a hotly debated subject.
Those that swear by it claim that whenever you start fresh or flash a new rom, it takes anywhere from one to a few battery cycles before the kernel calms down. Perhaps it is doing some sort of internal calibration based on your battery life and system demands or something like that. The theory seems to be that the Kernel doesn't allow the CPU to fully doze until it is done with this process, which sometimes takes days. I don't know, but the more I read about it, the more it sort of started sound plausible. When I got the phone, I tried out some things on it myself without a SIM card first, just to make sure everything on it checked out before giving it to the wife. Then, I did a hard reset, popped in her SIM card and let it do its thing. That's when we realized battery life was pretty terrible, as after 10-12 hours she already needed to charge... and this was on the 4100mah perfine!
I tried another hard reset, and when that didn't fix it, I decided it was time to root and see if I could get to the bottom of the bad battery. It seemed the kernel was where a lot of it currently went according to battery stat apps. After downgrading my H918 to Nougat so I could install TWRP, I promptly flashed Alpha Omega Oreo 20H and restored her apps. Turns out the next morning we couldn't sync her smartwatch, somehow we broke bluetooth (going into BT settings would crash the phone everytime). So weird, and while we were at it the battery life still wasn't great. So I did a hard reset that evening and found that even with nothing installed, BT was borked. (looking back at it, I think I should have flashed an Oreo rom like the stock 20H rooted first, and THEN the AO rom. I think going straight from nougat might have led to a driver mismatch or something)
Anyway, after that didn't work I flashed the stock rooted 20H rom, and lo and behold bluetooth and everything else is working again! But the battery has been bad all along and is still doing its generally suckiness thing.
BUT... as someone pointed out, if this kernel settle thing is real, I've been pretty much flashing and resetting this thing every other day. If roms need to "settle" first (still a debatable subject), than I never really gave it a chance yet and that's why I'm constantly seeing battery drain from things like Kernel even on different roms! And @pistacios, is it possible that you were having a kernel do the same thing since it was just reset and it just so happened to be that when it calibrated itself you thought you had fixed it by cleaning out the USB port?
All I know is I'm going to give this a couple of days before deciding on a plan B. Seems too simple to be the reason, but hey- I'm desperate.

Dishe said:
I did my homework first and got the Perfine from Amazon, not a no-name junk battery. When I couldn't fit it without removing the sticker, the seller was really helpful and actually offered to replace it after checking first that it fit in *THEIR* V20 at the factory. Really solid customer support. And according to Accubattery, it really is the capacity it says. Or at least within 99% of it (I think it estimated 4080 or something like that). So I don't think that's the issue.
That's actually really interesting- I did take apart the phone to do the thermal mod thing (wiped off the dried up pink gunk and put a thermal pad there), but it seemed pretty clean otherwise inside when I did. How on earth did you figure out that was the problem?
After speaking with some folks on Telegram, Reddit, and other corners of the internet, I have a different theory. A bunch of people told me to let the rom "settle", that battery life is never good after a fresh format or new rom flash. Honestly, the critical thinker in me says that sounds like nonsense. I've never heard of this before and I've been flashing roms for the better half of a decade. I'd think after it takes the time the load up your apps and settings and configure itself, it would be done. But I Googled it, and it seems to be a hotly debated subject.
Those that swear by it claim that whenever you start fresh or flash a new rom, it takes anywhere from one to a few battery cycles before the kernel calms down. Perhaps it is doing some sort of internal calibration based on your battery life and system demands or something like that. The theory seems to be that the Kernel doesn't allow the CPU to fully doze until it is done with this process, which sometimes takes days. I don't know, but the more I read about it, the more it sort of started sound plausible. When I got the phone, I tried out some things on it myself without a SIM card first, just to make sure everything on it checked out before giving it to the wife. Then, I did a hard reset, popped in her SIM card and let it do its thing. That's when we realized battery life was pretty terrible, as after 10-12 hours she already needed to charge... and this was on the 4100mah perfine!
I tried another hard reset, and when that didn't fix it, I decided it was time to root and see if I could get to the bottom of the bad battery. It seemed the kernel was where a lot of it currently went according to battery stat apps. After downgrading my H918 to Nougat so I could install TWRP, I promptly flashed Alpha Omega Oreo 20H and restored her apps. Turns out the next morning we couldn't sync her smartwatch, somehow we broke bluetooth (going into BT settings would crash the phone everytime). So weird, and while we were at it the battery life still wasn't great. So I did a hard reset that evening and found that even with nothing installed, BT was borked. (looking back at it, I think I should have flashed an Oreo rom like the stock 20H rooted first, and THEN the AO rom. I think going straight from nougat might have led to a driver mismatch or something)
Anyway, after that didn't work I flashed the stock rooted 20H rom, and lo and behold bluetooth and everything else is working again! But the battery has been bad all along and is still doing its generally suckiness thing.
BUT... as someone pointed out, if this kernel settle thing is real, I've been pretty much flashing and resetting this thing every other day. If roms need to "settle" first (still a debatable subject), than I never really gave it a chance yet and that's why I'm constantly seeing battery drain from things like Kernel even on different roms! And @pistacios, is it possible that you were having a kernel do the same thing since it was just reset and it just so happened to be that when it calibrated itself you thought you had fixed it by cleaning out the USB port?
All I know is I'm going to give this a couple of days before deciding on a plan B. Seems too simple to be the reason, but hey- I'm desperate.
Click to expand...
Click to collapse
Ive experienced ROMs settling in and battery stabilizing after a few days. But this was pretty far back with the HTC M7 and M8. Most modern phone's I've flashed pretty well settled in within the first few hours. The battery life on this phone was never amazing. It was good to just Ok for most when it was new.
If you flashed the stock rooted rom and still had bad battery life, I still suspect the battery itself. I still recommend one of the battery I listed earlier. If the perfine didn't work out try a different one.
Sent from my ONEPLUS A6010 using Tapatalk

clsA said:
Ive experienced ROMs settling in and battery stabilizing after a few days. But this was pretty far back with the HTC M7 and M8. Most modern phone's I've flashed pretty well settled in within the first few hours. The battery life on this phone was never amazing. It was good to just Ok for most when it was new.
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Click to collapse
Right, with the stock 3200mah battery. With the Perfine 4100, a lot of reports are saying 6-7 hours SOT or at least a full day of regular use. That's good enough, really. Mine is dying at half of that. I'm wondering if I have faulty hardware. I could put the stock battery back in and see if it dies much sooner.
I'm actually wondering if someone can check their mA use per hour with the screen on vs off, and I can see if the numbers make sense on mine. Accubattery is pretty good at the math.

Dishe said:
.....
And @pistacios, is it possible that you were having a kernel do the same thing since it was just reset and it just so happened to be that when it calibrated itself you thought you had fixed it by cleaning out the USB port?
....,
Click to expand...
Click to collapse
Phone was up and running for 2 weeks, so it wasn't due to fresh reset.
GSAM battery monitor showed kennel wakelock, something about USB OTG in the top of the list, so I figured the port was my first check for a problem, and it was. It wasn't obvious that there was dirt or foreign matter in there, because it looked clean. But sure enough, after the light brushing with 94% alcohol, the problem disappeared.
I'm not saying this is definitely your problem, just throwing it out there.