Possible Solution to Battery life problems - myTouch 4G Q&A, Help & Troubleshooting

Take this for what it is worth, it applies to my device.
I define "acceptable" battery life as I arrive home at night with > 25% battery remaining. I firmly believe that if you want to charge your smart phone once a week you need to wait for fusion batteries because current technology will just cause you to complain bitterly on-line.
That said, I had seen occasions when my battery would be hot and you could practically watch it drain. This while the phone was not in use and in good coverage area i.e. an aberration.
I read a reference a while back in a vaguely related support site talking about the phone getting stuck in USB polling mode. Honest I did! I am just completely unable to find the reference to include here.
Anyhow, as all programmers know polling is a fatally, catastrophically, horrible, thing to do; there are only a very few specific circumstances when that is an acceptable design.
So, after a fair bit of digging I found that my Glacier (rooted, stock ROM) can sometimes get itself into a USB polling mode. I theorize this is related to the mini-USB to micro-USB adapter, although it may also just be the act of plugging and unplugging it too quickly (loose connection, plug slips out of fingers etc.). But for whatever reason it appears caused by the device seeing something on the USB port but disappearing before the driver can decide what it is looking at.
Once it gets in this state the CPU clocks up to 1GHz, and goes to 100% duty cycle. And it does not move from that state. User interaction is a bit sluggish but not necessarily that noticeable.
The best solution is to toggle USB debugging off and back on. This seems to reset the driver and settle it down. I leave USB debugging on but do not believe that is causal. So if you don't use USB debugging I still believe this could apply to your device and by toggling on and back off you can probably achieve the same results. The key is to get the USB driver to reset its state.
As a pitch, the most expensive piece of software I have thus far purchased is SystemPanel. It was instrumental in figuring this out, although any task monitor, even "top" would probably help. Still SystemPanel is just so cool I have to pitch it here. (No I don't have a monetary interest, blah, blah, blah. It rocks, you'll like it. Trust me).
Anyhow, if your USB driver goes into polling mode it will fairly well wipe out a fully charged battery in 2-3 hours. And anyone is right to complain about that!
Hope this helps.
Terry

Terry,
Are you absolutely, 100% certain you are not experiencing either one of the following issues:
Issue #11126 - http://code.google.com/p/android/issues/detail?id=11126
Issue #13130 - http://code.google.com/p/android/issues/detail?id=13130, which points back here to a thread on XDA, regarding the USB Debugging workaround...
http://forum.xda-developers.com/showthread.php?t=826507
No one, has the real explanation of what causes either of these processes to run out of control. I guess that's why they're still bugs.
We all know that a phone running Froyo, that is experiencing either of these issues, will experience extremely rapid battery drain. Why it happens to some and not others, no one yet knows. Phones NOT experiencing this issue, specifically, Glaciers not experiencing this issue, regularly hit 15 hours of battery life without any form of ROM modification, hacks, SetCPU adjustments, etc. - such as me and the 5 Glaciers I currently have here and have tested numerous times...
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*3 of those are going back on Monday.
I am fortunate to never have experienced this, while my fiancee has experienced this across 3 separate MT4G's, even though I had used 2 of those phones for over a week each and never experienced either issue once. I thought I was on to something when I had her try a completely new Google account on her 3rd phone, only to see the issue arise again after about 4 days. I'll be updating the thread I started with that info.

shlongwoodian said:
Terry,
Are you absolutely, 100% certain you are not experiencing either one of the following issues:
Issue #11126 - http://code.google.com/p/android/issues/detail?id=11126
Issue #13130 - http://code.google.com/p/android/issues/detail?id=13130, which points back here to a thread on XDA, regarding the USB Debugging workaround...
http://forum.xda-developers.com/showthread.php?t=826507
Click to expand...
Click to collapse
It sounds similar but link #3 is not the one I referenced in the original post; it was not an XDA thread.
The first 2 links seem closely related to each other and likely my observation as well. I do not believe this is hardware related, nor do I believe a separate Google account will help - sorry. Of course I could easily be wrong.
Anyhow, I do have a problem that I plan to call TMOB about. It seems I cannot EVER send an MMS unless I am connected to a wifi access point. Perhaps it uses wifi perhaps that is only incidental but the correlation is 100%.
I mention that because as I was once again failing to MMS a picture today I tried to Restart. Surprisingly when the phone restarted it was in the 100% CPU utilization again. I did not research the problem as I'm familiar with the solution now. I cycled USB debugging and all was well. This was good because I wasn't home. This was surprising because no USB devices were part of this story at all (first time I've observed that scenario).
Just for clarity, I routinely get 15+ hours of life out of my device and have no complaints at all. I didn't mean to sound like I was complaining about battery life. I will mention that if you crank the brightness up to 100%, or even 80%, it does have a pretty significant impact on battery life. Moral: there are only so may electrons in those ions. Be a little circumspect where you spend them.
Anyhow, this is one more potentially useful data point in the ongoing battery saga.

I think more so, what I'm trying to do is get down to actual brass-tacks. Have you checked the list of running processes when this happens? The next time you see your battery running so low, can you launch Watchdog and take a screen shot of both your /init process and the /suspend process?
There's no "ghost in the machine" here. This isn't random. These are documented bugs that are 100% related to what you're experiencing.
It's very easy to associate events with one another. Just because it rained on Monday, doesn't mean Mondays make it rain. I'm totally not trying to be combative, but I am trying to be very specific and I am doing my best to avoid speculation.
I have a feeling if you look at either of those two processes the next time you see 100% CPU usage, you might find you're not alone. That's awesome you're getting that kind of battery life. It sounds just like my fiancee, who's getting 15 hours a day...except when /suspend runs out of control and she doesn't catch it in time.

ethutch said:
Anyhow, I do have a problem that I plan to call TMOB about. It seems I cannot EVER send an MMS unless I am connected to a wifi access point. Perhaps it uses wifi perhaps that is only incidental but the correlation is 100%.
Click to expand...
Click to collapse
Get rid of the Telkila apn if it's still on your phone. I had the same problem. There's a few threads about it around here.
Sent from my HTC Glacier using XDA App

Related

First Day with G1 (diary) - Hardware problems ?

This is my first topic so: hello all, my name is Filipe and im from Lisboa, i buy the G1 with sim unlock from T-Mobile (Uk version) two days ago. First Day im really impressed with Device, I try a lot of stuff, like bar code reader, Camera, GPS, i download a lot of stuff in the Market, and, with the help of the forum, i access the device as a root user, for wifi sharing with my computer.
Today (monday) i worked far from where i live, (im a network engineer and i need the device for planing my life, and for navigate across the country). I have a company phone so i only need G1 for internet access, and for that i buy dedicated sim card only for 3g connection). Like i said before, today was the first working day for the G1.
3g active all the time
(8:00 AM): Wake up, unplug it from charger.
(8:30 AM): See the traffic status over the internet
(9:00 AM): Arrive to my car, plug the phone to charger, start Imeem mobile for music (Start with nirvana ), start GPS with one navigation system that i find yesterday and i liked alot, called wisepilot, i have other navigation system like Nav4All and AndNav2! but i can only put wisepilot to work (??). First Problem. GPS Satellites take 10 minutes to apear (??)
(10:40 AM): Arrive to destination unplug the phone and damn, the back end of the G1 is HOT, very HOT, i never experienced nothing like it in my other HTC 3300, but it never slow down or lag the map, and the music continues playing without any kind of delay. So i Guess that is normal ???. Turn of the GPS with Useful Switchers and go to work. I don't know if im closing the programs correctly, if i press Home for 3 or 4 seconds i found last used programs, and i only have to touch them to open, so my guess is that they continued running in background and not really closing when i press back (??) for closing them. (when i go to terminal and make #top command i see alot of stuff, can this be the cause of high temperature??? a lot of things working in background?)
(11:00 AM): BIG PROBLEM: the battery is dead. completely dead, i dont know why, the 3g is always on but everything else is off (everything that i can put off in useful switchers). I dont have where to plug it for charging so i have to wait until 5 PM
(5:00 PM): Arrive again to car, start google maps, start tunewiki for music (start with Bob Marley other day of work ) and back to home again
(7:00 PM): when i arrive home, after two hours of driving i only have 57% charged (this is too low isnt it???) and the device is again to HOT.
(9:00 PM): when i start this topic G1 just show the message that battery is lower that 15% and is hot again, it is plugged to PC just like i show in next photo.
The device was very very nice, alot of stuff to explore but and alot of IU problems (Incompetent User), i dont know why the device is always to HOT and im loosing battery very very fast. But always stable and without lag.
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Well first off, congrats on your G1. I got my ADP1 (developer G1) just after christmas and love it. It does get very hot. It has never really been a problem for me, just an annoyance. That is just the price for having background apps, more ram, and a pretty powerful processer. My iPhone doesn't have any of those features (well... it didn't before I jailbroke anyway ) and it STILL gets hot. It is just a common problem with many modern smartphones (my friends blackberry storm does the same occasionally). I wouldn't worry too much about it. And the G1 battery is pretty crappy. It is low compared to even some dumbphones. You can either buy one of the extended batteries available online, or just use a program like Advanced Task Manager (in the market) to shut off all other applications running in the background. Especially since those pesky radio apps like to run in the background
Hope this helps! Enjoy your G1!
Filipe.Nogueira said:
Click to expand...
Click to collapse
I love the design! My battery does the same thing you described, as i have to use it for planning, internet, and coding, etc. Seems to be a normal thing across all G1 owners thought
Turn off 3G -- you don't need it for navigation and it sucks the battery dry fast.
Also, takes a few charge/discharge cycled for battery capacity to get up to maximum.
Yeah I think the low capacity battery is a serious problem, I will consider buy a new one. And, if I navigate using google maps I need the 3g connection because the maps loading and the music streaming in background...
I erase all the settings and data of my phone yesterday (alt + w in startup menu) and it is more cool and fresh.
When I'm writing this in g1 battery goes from 36% to 28%...

~50% battery loss in 6 hours, idling...

Hey guys, a few days ago I flashed the new Energy ROM, August 28th and, for the first time I used Task29, I have never used it before as I just didn't see the necessity, my flashes have always been problem free. However whether or not this is related is unbeknownst to me.
My phone has been uber sluggish lately, sometimes for ten or fifteen minutes at a time, so I looked into the processes active in the task manager and there is a process called filesys.exe that has been running as high as 98% in standby, while the phone is in use, after a reset, bascially whenever and it feels like it.
I have searched and searched and I can't find a solution to this, I have hard reset, flashed a new ROM and it still persists. I've uploaded some pics of the process in action, as you can see in eight minutes I've lost four percent battery, although I did use Wi-Fi and Remote Access briefly to send the pics I took using ShakeAndSave.
Does anyone have any solution to this? It's rendering my phone unusable.
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Try removing your SD card and reboot, see if it still does it.
It might be error correcting a corruption.
Check if the sense musicplayer still works, mine doesn't work anymore and if I press the music-tab one time it keeps searching for the library, and my phone's battery drowned pretty quickly.
Hello there,
Try disabling your HSPDA and switching to just GPRS for the day, see if there are improvements or not. I once had this mega draining situation, I went out, bought a new battery and it was still the same, THEN a friend of mine who works for the Telco i was using told me that sometimes, when the Telco is having issues with the transmitters, it causes everyone's phone to reconnect repeatedly, that could exhaust the batteries also.. don't know how much truth but I switched my SIM to another telco, and I don't have that issue any more..
Peace!
Ben
Have you go G-Profile running
A while ago I had issues on a stock ROM with the phone draining battery power quite fast. I traced the problem to the phone never really going into standby mode. It turned out that G-Profile was the culprit. I un-installed it and the problem was resolved.
heres a snap of mine just a few secs ago, phone has been on all day, been playing music for 2.5 hours and spoken for 17 mins. as u can see 80% VBN rom,
not sure if it helps u at all
bjkoh said:
Hello there,
Try disabling your HSPDA and switching to just GPRS for the day
Click to expand...
Click to collapse
I seldom have it on 3G/HSDPA, I usually just keep it on EDGE until I have the need to use the faster connection.
There isn't much covering this subject in the recent 2-3 years, but I do seem to have solved it, although I am aware some people haven't been able to rid their handsets of it even after multiple flashes, I don't know the root cause of it, so I can't claim to know if this actually did solve a problem etc etc...
I Task29'd, installed Energy CHT, left it for a few days and the problem persisted, it had been going on for 2-3 days before I used Task29 I have established. While the OS was on there I hard reset 1-2 times and eventually reflashed the Energy CHT again, and it still happened.
I then removed HSPL, flashed the O2UK stock 1.72 ROM, left it like it for half a day, I didn't install any mods or programs and it seemed to be fine, so I re-HSPL'd with 2.08, installed Energy GTX (I fancied a change) and bingo it's been right as rain for a good 24 hours now.
I don't know where the issue came from, or where it went to, but I seem to be sailing smoothly once again, and I am very grateful for it!
I am currently fighting with this same issue, I lost more than 30% last night while I slept, am currently tshooting the issue using the batt log and truning off a few things and starting to use bandswitch.
When I find something definitive, I will post it.
Check that you arent having this "car kit mode" issue. The battery in the phone seems to drain alot faster when the phone is acting up, because the phone will never goto sleep or stay asleep.
http://forum.xda-developers.com/showthread.php?t=619859
innovator8 said:
I am currently fighting with this same issue, I lost more than 30% last night while I slept, am currently tshooting the issue using the batt log and truning off a few things and starting to use bandswitch.
When I find something definitive, I will post it.
Click to expand...
Click to collapse
My issue was definitive, it was the Filesys.exe file chewing up all the CPU's cycles, it wasn't a random battery drain.

[Q] About WP7.5

Hi guys, just a quick question.
Which Windows phone 7.5 mango rom is best on battery life?
I'm currently using Pdaimatejams V8 VERSION of his wp7.5 rom, and the battery life on that is terrible. 8:30am to 1pm and battery is dead .
Advice on this would be nice as these roms are huge and take ages to download, so manually checking one by one would take years.
Regards,
Not as simple as that mate, they are all more or less the same ROM.
you have the defunct BTTF line which was complicated but by far the best overall ROM with the least problems
then you have Ultrafruit Clones
the really killer on battery life comes from the radio your using and any live tiles, also BT and Wifi can kill it pretty quick too.
in short try the 2.12 hardware radio ROM and the 51t software radio, the hardware radio can be flashed whenever but the software must be installed when you flash the initial ROM.
With those you can also try the camera trick, which is tap the camera button, put it in to video mode, let it auto focus then tap the home button.
its thought that for some reason the camera doesn't stop focusing or something like that unless you do the above, loading up the camera again will mean you need to reapply the fix
anyhow, so make sure you have no background tiles killing you, your running those radios, and you have done the camera trick, all with BT and wifi off as much as possible, and it will last a day with heavy use.
dazza9075 said:
Not as simple as that mate, they are all more or less the same ROM.
you have the defunct BTTF line which was complicated but by far the best overall ROM with the least problems
then you have Ultrafruit Clones
the really killer on battery life comes from the radio your using and any live tiles, also BT and Wifi can kill it pretty quick too.
in short try the 2.12 hardware radio ROM and the 51t software radio, the hardware radio can be flashed whenever but the software must be installed when you flash the initial ROM.
With those you can also try the camera trick, which is tap the camera button, put it in to video mode, let it auto focus then tap the home button.
its thought that for some reason the camera doesn't stop focusing or something like that unless you do the above, loading up the camera again will mean you need to reapply the fix
anyhow, so make sure you have no background tiles killing you, your running those radios, and you have done the camera trick, all with BT and wifi off as much as possible, and it will last a day with heavy use.
Click to expand...
Click to collapse
Right thanks for the tips! I had 4 live tiles, moved them.
Although i'm not quite sure what you meant by the camera trick?
Say i've done a fresh boot of the phone and not opened the camera app since, will that affect the battery life?
What's the camera trick meant to do exactly and how does it increase battery life?
Thanks for your response though!
Tenpin said:
Right thanks for the tips! I had 4 live tiles, moved them.
Although i'm not quite sure what you meant by the camera trick?
Say i've done a fresh boot of the phone and not opened the camera app since, will that affect the battery life?
What's the camera trick meant to do exactly and how does it increase battery life?
Thanks for your response though!
Click to expand...
Click to collapse
well you need to remember that this phone was only a test phone for WP7, it never had proper drivers made for it, hence some of the issues.
if you have the 51T soft radio then you can do the "camera trick"
I don't think there is any real answer (feel free to correct me folks!) to this other than guessing but I think it goes along the lines of, the camera even when off or not even ran that session can continue to focus, which eats up the battery, its like leaving the camera on. by opening the camera, then turning to video mode, then let it focus and finally tapping the home button, it seems to dramatically reduce the discharge rate, in some cases to as low as 2-5mA
Now to be honest that sounds very low, but I guess if you turn everything off and live in a good signal strength area you may get that., ive not had it lower than 10mA, before the trick it could use anything from 30mA - 80mA for some reason it can jump up to 300mA, this is all in standby mode, putting the screen on with it set to high will zap your battery, the backlight settings are next to useless as well so its worth turning off the backlight if you can. I think the choices are, Burn your eyeballs out, wheres my sunglasses and finally Off, auto doesn't work.
dazza9075 said:
well you need to remember that this phone was only a test phone for WP7, it never had proper drivers made for it, hence some of the issues.
if you have the 51T soft radio then you can do the "camera trick"
I don't think there is any real answer (feel free to correct me folks!) to this other than guessing but I think it goes along the lines of, the camera even when off or not even ran that session can continue to focus, which eats up the battery, its like leaving the camera on. by opening the camera, then turning to video mode, then let it focus and finally tapping the home button, it seems to dramatically reduce the discharge rate, in some cases to as low as 2-5mA
Now to be honest that sounds very low, but I guess if you turn everything off and live in a good signal strength area you may get that., ive not had it lower than 10mA, before the trick it could use anything from 30mA - 80mA for some reason it can jump up to 300mA, this is all in standby mode, putting the screen on with it set to high will zap your battery, the backlight settings are next to useless as well so its worth turning off the backlight if you can. I think the choices are, Burn your eyeballs out, wheres my sunglasses and finally Off, auto doesn't work.
Click to expand...
Click to collapse
battery life is subjective...it depends on the types of apps you have installed, their use of wireless services, your personal usage habits, etc.
Yea we already established that, but what is not clear is why it can go on a melt down and drain the battery very quickly for no apparent reason one day to the next. My theory on that is that ita not fully charged. IE. its half full but reporting full, thus it may appear to drain twice as fast
Sent from my HD2 using XDA Windows Phone 7 App
dazza9075 said:
Yea we already established that, but what is not clear is why it can go on a melt down and drain the battery very quickly for no apparent reason one day to the next. My theory on that is that ita not fully charged. IE. its half full but reporting full, thus it may appear to drain twice as fast
Sent from my HD2 using XDA Windows Phone 7 App
Click to expand...
Click to collapse
what day to day melt down? he only described one day's battery life of 6 hrs of use. 6hrs is not a meltdown.
it's an issue with the rom. if you READ the v8 rom thread, the v8 rom has lots of power issues. i've read many posts complaining about the poor battery life.
hjhjhj said:
what day to day melt down? he only described one day's battery life.
it's an issue with the rom. if you READ the v8 rom thread, the v8 rom has lots of power issues. i've read many posts complaining about the poor battery life.
Click to expand...
Click to collapse
I've only described one days, although for this entire week it has been pretty much the same. Only lasting around 6 hours.. and are you suggesting it is Pdaimatejam v8 that's causing the immense drain? Perhaps I should try this rom: http://forum.xda-developers.com/showthread.php?t=953078?
Tenpin said:
I've only described one days, although for this entire week it has been pretty much the same. Only lasting around 6 hours.. and are you suggesting it is Pdaimatejam v8 that's causing the immense drain? Perhaps I should try this rom: http://forum.xda-developers.com/showthread.php?t=953078?
Click to expand...
Click to collapse
i'm not suggesting anything. just conveying what other users have posted. you've posted to the v8 thread and you've seen all the posts about battery life issues since v8 was released. if you like pdaim's rom...why don't you just flash v7.9?
hjhjhj said:
what day to day melt down? he only described one day's battery life of 6 hrs of use. 6hrs is not a meltdown.
it's an issue with the rom. if you READ the v8 rom thread, the v8 rom has lots of power issues. i've read many posts complaining about the poor battery life.
Click to expand...
Click to collapse
I see you've not change in the months since our last encounter.
Im running the V8 as I have been running just about all his updates and there are many, as well as HD2s, xbmods and even the Ultrafruit original that this comes from, the issues are the same on all of them. But If you care to read and follow all the information available in here you will see that its quite common for the HD2 running WP to draw ~300mA in standby, that its a huge amount of power to draw when its off and would empty the battery in 4 hours, without even using it.
when it comes to battery life, nothing is clear, however we do know that it doesn't always charge the battery fully, we do know that it can incorrectly report the available charge, we do know what despite devices using identical ROMs some folk can get <7mA in standby, others get >300mA in standby.
In short its a mess.
If you have an external charger and spare battery use it, it will help with half the problem, high current usage can be down to several things and probably many more that we do not know about, all things being well, if you use your phone a lot, use an external charger, make sure you have good radios for your area installed including the 51T soft radio an then do the camera trick, you may get a working day out of it without issue.
Thats with a lot of usage, making calls, BT, excel, music, 2 email accounts set to push etc
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This is a meltdown. Overnight, no wifi, just sleeping. Tried camera trick. Nice rom and my first try at WP7.
I call this a fail.
Back in ICS now.
Sent from my HD2 using the power of ICS
just reminding, there are some problem with HD2 wp7 battery indicator which always shows wrong battery percentage...
altough it shows 0%, you still can use it for several hours....
try to change the radio SW and HW, and do camera trick...
wazzzuuuup2 said:
just reminding, there are some problem with HD2 wp7 battery indicator which always shows wrong battery percentage...
altough it shows 0%, you still can use it for several hours....
try to change the radio SW and HW, and do camera trick...
Click to expand...
Click to collapse
ok, there maybe some problems with the battery indicator, but for sure it was deader then a dead thing. after pluggin in and restarting in android it was on 1%
i had what seemed to be the best radios and tried the camera trick.
but... apart from that, the phone was asleep (or pretending to be) with wifi and bt off.

Nougat wreaking havoc on your battery? Solutions...

Welcome to Nougat prison.
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If you're reading this, you're probably regretting taking the latest OTA update.
It seems that Google hasn't been so kind to our batteries this time around, and with no root is in sight (thanks AT&T), our likelihood of any real battery life improvements is severely limited. Here are a few tips which may help remediate the situation.
Don't drop the soap...
Suggestion 1.) Reset app preferences. This may help to sort out some battery draining bugs:
Navigate to Settings>General>Apps>(dropdown)>Reset app preferences
Suggestion 2.) Disable all AT&T & LG bloatware. Less apps to run = less potential battery drain:
Navigate to Settings>General>Apps> disable everything you don't need
Suggestion 3.) Force GPU rendering. This will take some load off of the CPU which is more power-hungry than the GPU:
Navigate to Settings>General>Developer Options>Force GPU Rendreing>On
Suggestion 4.) Disable battery optimizations for all Bluetooth-related entries, Nougat is known to play nasty with Bluetooth:
Navigate to Settings>General>Battery & Power Saving>Usage>Ignore Optimizations
Suggestion 5.) Turn off IZAT low power location estimation. Contrary to it's description - this will actually actively use Wi-Fi for location services when your GPS is off. This feature is a no-go for battery life:
Navigate to Settings>General>Location>Low power location estimation>Off
Suggestion 6.) Disable Wi-Fi when screen is off, this will mitigate network drain while your phone is idle:
Navigate to Settings>Networks>Wi-Fi>(dropdown)>Advanced Wi-Fi>Keep Wi-Fi on when screen is off>No
Suggestion 7.) Disable Enhanced LTE services. You will lose HD call audio, however this feature is known to cause excessive battery usage on the AT&T network:
Navigate to Settings>Networks>More>Enhanced LTE Services>Off
Suggestion 8.) Install Greenify and Greenify pretty much everything, including system apps. Make sure you connect the phone to your PC, enable USB debugging and run the ADB commands to enable aggressive doze. It is still far better than Nougat's built-in doze.
Suggestion 9.) Pray. Jesus may not save your battery, but doing anything rather than using your phone may help the battery last longer... :angel:
Or just do a factory reset and solve a lot of the issues. I don't have the battery drain I always do a factory reset after an OTA for 2 reasons 1 it's recommended 2 it solves the optimization of apps because when changing operating systems it doesn't do a smooth transition and usually leaves behind some of the old system cache that can only be removed by factory reset
Sent from my LG-H820 using Tapatalk
krazyace35 said:
Or just do a factory reset and solve a lot of the issues. I don't have the battery drain I always do a factory reset after an OTA for 2 reasons 1 it's recommended 2 it solves the optimization of apps because when changing operating systems it doesn't do a smooth transition and usually leaves behind some of the old system cache that can only be removed by factory reset
Sent from my LG-H820 using Tapatalk
Click to expand...
Click to collapse
Not everyone wants to do a factory reset. It can be a big pain losing data and restoring all your apps one by one. If course this wouldn't be a problem at all if we had root, because we could use a custom recovery and clear the system cache manually.
Idle drain vs SOT before:
Idle drain vs SOT after:
Factory reset is the only way to go, does wonders for the phone
Nitro1max1 said:
Factory reset is the only way to go, does wonders for the phone
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Click to collapse
I reset my phone 4 times two different ways. I think I narrowed it down to Android Wear. Will know today. Because this sucks.
Sobr0801 said:
I reset my phone 4 times two different ways. I think I narrowed it down to Android Wear. Will know today. Because this sucks.
Click to expand...
Click to collapse
So pretty much anything I install kills the battery that runs in the back ground.
Sobr0801 said:
So pretty much anything I install kills the battery that runs in the back ground.
Click to expand...
Click to collapse
Yup, I've pretty much figured out this phone. Carrier models (especially AT&T's) really suck because of background apps you can't disable without root (which is also likely impossible unless they'd release a .TOT/ .KDZ to be examined for root possibility). Additional installed apps drain the battery to varying degrees, especially with Nougat. Compounding everything, this phone's battery life is anywhere from 2/3 to 1/2 as efficient while using mobile data/ especially with a low mobile signal. Factory resets do nothing to fix these problems. Hopefully 7.1.2 or 8.0 will eventually be signed and distributed for us, otherwise this phone seems like a lost cause.
Strange thing it's it now works. I pretty much uninstalled everything. Then I slowly reinstalled the things I wanted slowly, over weeks. Even android wear. But there are things that still will crush the battery life. Either way it seems normal now.
PHYCLOPSH said:
Welcome to Nougat prison.
Suggestion 9.) Pray. Jesus may not save your battery, but doing anything rather than using your phone may help the battery last longer... :angel:
Click to expand...
Click to collapse
I am awaiting my g6 and was curious to know the battery life , came from real life review battery standby drain on g6 to here via link. This made me lol . Thanks for the other suggestions as well , will try them out.
Thank you for this! Ever since getting this phone (Just over a year ago), the ONE THING that has bugged me is the immediate and apparent horrible battery life! I went through this and did as much as I could, and noticed an immediate improvement. Also has helped with the heat, it would get a worrying level of hot. One thing I wasn't able to figure out was this, as I couldn't find it where you indicated in settings.
PHYCLOPSH said:
Suggestion 3.) Force GPU rendering. This will take some load off of the CPU which is more power-hungry than the GPU:
Navigate to Settings>General>Developer Options>Force GPU Rendreing>On
Click to expand...
Click to collapse
Thanks again!
JMTurner1981 said:
Thank you for this! Ever since getting this phone (Just over a year ago), the ONE THING that has bugged me is the immediate and apparent horrible battery life! I went through this and did as much as I could, and noticed an immediate improvement. Also has helped with the heat, it would get a worrying level of hot. One thing I wasn't able to figure out was this, as I couldn't find it where you indicated in settings.
Thanks again!
Click to expand...
Click to collapse
You need to activate the Developer Options. To do that simply navigate to (assuming to are on G5 LG-H820, Android v.7):
Settings>General>About Phone>Software info
Now start tapping on "Build number" till you get the message "You are now a developer".
Developer Options will appear in:
Settings>General>Developer Options

Huge battery consumption, help needed

Hi all,
I am very satisfied with my device except for the battery life. I always had like 3-4 hours SOT. I was not happy but it was OK.
Lately I started charging the device every day after work (I would come home with dead phone after only 8-9 hours of it being unplugged).
So I thought the battery is defective, I must change it... and I did change it yesterday. The thing is that even the new battery behaves almost the same. It approved somewhat and now I will return home with 10% battery instead of dead phone 1 hour ago. But still the battery is terrible...
Can anyone help me, share some advice on how to improve it? I have disabled many software (even facebook), disabled location... did everything I could think of.
I am thinking some app is drawing the juice but cannot put my finger on any of them.
Some screenshots are attached that might help with your tips/advices.
Thanks!
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Are you rooted? On nougat? If so get background restrictor APK here on XDA and kill background apps and tasks so they can't run if you do not open them. Lower screen brightness. Install kernel auditor and shut off cores 4 and 8.
ljesh said:
Hi all,
I am very satisfied with my device except for the battery life. I always had like 3-4 hours SOT. I was not happy but it was OK.
Lately I started charging the device every day after work (I would come home with dead phone after only 8-9 hours of it being unplugged).
So I thought the battery is defective, I must change it... and I did change it yesterday. The thing is that even the new battery behaves almost the same. It approved somewhat and now I will return home with 10% battery instead of dead phone 1 hour ago. But still the battery is terrible...
Can anyone help me, share some advice on how to improve it? I have disabled many software (even facebook), disabled location... did everything I could think of.
I am thinking some app is drawing the juice but cannot put my finger on any of them.
Some screenshots are attached that might help with your tips/advices.
Thanks!
View attachment 4421981 View attachment 4421982 View attachment 4421983 View attachment 4421984
Click to expand...
Click to collapse
uninstall chrome. Then try accubattery (better bcause after android 7, they join all in android system to mask each app consumption. If after this you still can't find out where's the problem, start the phone in "safe mode". Even the consumption is better in this mode you must do a full wipe in recovery mode (vol up+power+home) and after this, reinstall one app each time and see after reinstall the second one and so on until you find out in which app is draining the battery
If you want you can starting by disabling background data in settings but I think isn't the clearer way to find out
This is going to surprise you.
I've had this phone for years and I've tried everything - and the BEST result is when you DON'T DO ANYTHING except disable Facebook and Instagram, and any Google Apps you don't use.
Do not tamper with anything else.
I figure that Samsung tunes this phone so tightly that if you leave it alone it operates as it should.
Anytime I disabled anything else, battery life suddenly and drastically reduced.
The phones runtime software kicks in and if you have disabled something it checks routinely, it will keep the phone awake constantly looking for a ping back from that process.
I just went through the whole process again meticulously, App by App.
Also DO NOT enhanced messaging OR the device antivirus. If you have, you must reset and then train yourself not to engage these too regardless of how hard The phone tries to persuade you!
Then - the battery life becomes like a normal phone which means you'll still need to charge everyday but it will take you through a full heavy day... And this is fantastic!
Honestly try it and you'll see what I mean. The S6 edge plus is so finely tuned, anything you block will start a feedback loop.
I had similiar problems , the way i fixed it, i disabled/uninstalled all samsung applications what i dont use, i disabled/uninstalled all google applications what i dont use. Cold weather (like -20C) will affect the battery life too.
Disable / uninstall apps you dont need. That helped me a lot and got even more battery life while at stock nougat rom with all updates installed.
try wiping cache from recovery and reboot your phone.
I hope this helps you

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