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Hi,
I have been facing these two weird issues:
1. Sudden drop in battery percentage: I have found that this occurs only when i reboot my phone (not every time though). So when the phone restarts, the battery is down by 20-30% or sometimes even more. And its not a one time issue. I have seen it happen at least 3-4 times in the last 5 months.
2. Sometimes when I am not charging the phone, the battery % keeps increasing slowly. This has been happening lately since the time I have rooted and flashed my phone. 2-3 occurrences that i know. I don't recall seeing this when I was on stock. Just this morning I plugged my phone off the charger at 52% and I left for work. And right now at this moment when I am writing this, the phone is at 58% charge!!
Just FYI.. I calibrate the battery every time I flash a new ROM.
Thanks,
Sam
sammy.samsung said:
Hi,
I have been facing these two weird issues:
1. Sudden drop in battery percentage: I have found that this occurs only when i reboot my phone (not every time though). So when the phone restarts, the battery is down by 20-30% or sometimes even more. And its not a one time issue. I have seen it happen at least 3-4 times in the last 5 months.
2. Sometimes when I am not charging the phone, the battery % keeps increasing slowly. This has been happening lately since the time I have rooted and flashed my phone. 2-3 occurrences that i know. I don't recall seeing this when I was on stock. Just this morning I plugged my phone off the charger at 52% and I left for work. And right now at this moment when I am writing this, the phone is at 58% charge!!
Just FYI.. I calibrate the battery every time I flash a new ROM.
Thanks,
Sam
Click to expand...
Click to collapse
I think that Entropy can answer this better but I'll still give a try.
[Q] Why these sudden battery level drops after reboot?
[A] The sudden battery drops is a known 'issue'. It's not a bug, it's the way the fuel gauges are designed for i777.
[Q] How to avoid these sudden battery level drops?
[A] Try not to reboot while it's on battery if the battery level is <50%. In that case, if you need to, make sure that the phone is plugged in for charging and then do the reboot. That should prevent those random battery level drops.
[Q] Will using battery calibration apps help?
[A] No, the way the i777 fuel gauges are designed, there is no need of battery calibration apps. The best way to get accurate battery level readings is to allow the battery to go through full 100%->0% battery discharge cycles for atleast 2-3 times. After each full discharge remove the battery, keep it out for a minute or two and reinsert, recharge the phone.
PS: The weird battery charges that violate E=MC^2 law might have to do with your battery not having been through proper discharge cycles (and thus not having been properly calibrated) after flashing a new ROM.
@Mod These questions are asked many times, how about adding them to FAQs (not sure if that will help though )
@Entropy Please review this post.
Pretty close.
Calibration does nothing on our device - the fuel gauge is designed so that it will always converge towards truth instead of diverging. Also, the "wipe battery stats" method of "calibration" has been proven to do NOTHING on ANY device whatsoever - https://plus.google.com/105051985738280261832/posts/FV3LVtdVxPT - The "charge battery to full" and "discharge/recharge" battery are valid tactics on some devices, but NOT any Galaxy S or S II device (maybe the ****rocket and T989, but not the I9100 or I777.) - There's a slight chance this may change with ICS on the I9100/I777 but not likely.
The advantage of this is that it never needs funky calibration cycles other than "just wait"
The disadvantage is that the gauge will get thrown off in a few limited corner cases - and the "two" issues described are one widely documented one. The gauge gets confused and falseley reports low by heavily battery load immediately following a reset, and takes a few hours to converge back to normality (during which the estimate creeps upward, because it was lower than reality initially).
And yeah this should probably be in the FAQ. I'll work on submitting it this weekend.
Thanks guys..
So looks like the sudden battery drop issue can only be prevented but not fixed!
sammy.samsung said:
Thanks guys..
So looks like the sudden battery drop issue can only be prevented but not fixed!
Click to expand...
Click to collapse
It's pretty much the characteristics of putting a battery under load and using voltage to dictate battery level. when you draw a lot of current from a battery you'll usually see the voltage level drop, more so as the battery is discharged. Booting up the phone consumes quite a bit of power, substantially more than the device at idle. So upon start up the device reads the voltage level to dictate battery level. Since the device is under a relatively high power draw, it sees a lower voltage than would be at idle. It in return thinks the battery is lower than it actually is, or would read under idle load. the battery level will actually creep back up slowly because it will read a higher voltage, than it did upon start up.
The only way i could think of to get a more accurate reading would be to delay the initial voltage reading/recording upon start up, or to use the last voltage reading to help dictate the battery level. But i have no idea if that's even possible, or if it would conflict with some sort of other operation.
I just don't get it!!!!!!!
I was playing multiplayer in bombsquad today morning wid my friend .My battery was @ 86% at that time
suddenly my battery came down to 15% then in the other moment it went to0% and mt phone got shut down. I plugged my phone in charge through the power bank and rebooted it and I saw my phone was @52 % I started using my phone and it again suddenly sut down this time without even a battery low message
it's been happening regularly wid my phone since then.
What could be the reason? And what can I do to make it right?
MY PHONE INFORMATION
MODEL:SAMSUNG GALAXY CORE GT I8262
ROM:USING STOCK ROM(ROOTED) (CWM RECOVERY INSTALLED)
avijeetpandey87 said:
MODEL:SAMSUNG GALAXY CORE GT I8262
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Click to collapse
This is the wrong forum. Even though the thread is about a problem similar to yours, we don't know anything about your phone.
If you have a removable battery, you might try purchasing a new battery, but that's just a guess.
The forums for you phone are here.
I have a extended battery. I usually get 2 days use on a charge. about a week ago I cannot make it thru a day. The battery is only about 6 weeks old. I tried another battery and same thing. I use task killer and app cleaner and have restarted several times. When I look in battery usage is shows the Android OS using 24% Display 26% and phone idle 24%. I did update all my app and this seemed to help just a little. Anyone have any suggestions before I return my extended battery or do a factory reset. tks in advance.
have you tried draining the phone completely till it shuts off, then plugging it in and letting it charge to 100% with the phone powered down?
Battery instructions say NOT to every let battery drain to 0. So not sure I should try that.
cdenloe said:
Battery instructions say NOT to every let battery drain to 0. So not sure I should try that.
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Click to collapse
That is about the life that I get on mine on a bad day. Now that you have had the phone for a while, more than likely, your battery has not changed but you have installed more apps which are draining you battery even faster. You shouldn't use task killers either, they screw with the roms built in memory management. However, if you must, then use "Task Manager" the built in stock task manager to end apps. Also i agree that you should completely discharge your battery and then let it recharge completely without turning it on and without using it.
PS: You have a nice avatar. Conservative til i die
cdenloe said:
Battery instructions say NOT to every let battery drain to 0. So not sure I should try that.
Click to expand...
Click to collapse
This is not true. The phone has its own power management. When you reach 0%, the battery has still at least 3100mV (on mine it's more than 3200mV).
Li-On and Li-Pol batteries are designed to operate between 4300 and 3000 mV when they reach more or less, than they are damaging.
So you can charge and discharge your phone everyday between 100 and 0%, without any battery damage.
Other thing is Android power management, every time you wipe battery stats or restore backup, or you spend some time in recovery, Android doesn't know, how much capacity is remaining and you need to make more charging cycles, to teach it again and get full capacity from battery. I still don't understand this kind of management in Android.
I've tried all the battery stuff. No dice still discharging fairly quick. In the Battery Usage section It still showing Android OS using around 39 to 40% usage all the time. I have done a full factory reset on the phone 2 days ago and still same.
I noticed, you are using the task killer, stop using it, you have probably loop of killing and starting of some services. Task killer kills, android starts, again and again...
I have uninstalled task killer restarted the phone and still got the high Android OS usage showing.
You won't notice any difference immediately, make one discharge, charge and discharge cycle and you'll see.
Do NOT discharge the battery completely. Over discharging Lithium ion batteries can be harmful to them. Here's a great article going into probably a little too much detail but it gets the point across: http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
As far as your problem goes it may be an issue with the phone itself I've seen a couple photons that needed to be exchanged due to issues that sound similar to yours. If it's doing the same thing on a different battery I'd take your phone into a sprint repair center, you could also try a factory reset if you have not already done so. If your only seeing this behavior with your current battery then I would return it or request a warranty replacement.
I have a extended battery. I usually get 2 days use on a charge. about a week ago I cannot make it thru a day. The battery is only about 6 weeks old. I tried another battery and same thing. I use task killer and app cleaner and have restarted several times. When I look in battery usage is shows the Android OS using 24% Display 26% and phone idle 24%. I did update all my app and this seemed to help just a little. Anyone have any suggestions before I return my extended battery or do a factory reset. tks in advance.
Click to expand...
Click to collapse
root your photon (if not already rooted) and download battery calibration from market, also after rooting go to android development and download th3bill's extended battery mod
schale01 said:
Do NOT discharge the battery completely. Over discharging Lithium ion batteries can be harmful to them. Here's a great article going into probably a little too much detail but it gets the point across: http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
Click to expand...
Click to collapse
Omg... Read that article again, and check, how much voltage is in the phone battery, when it reaches 0% ;-)
peetr_ said:
Omg... Read that article again, and check, how much voltage is in the phone battery, when it reaches 0% ;-)
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Click to collapse
Yes, there is an additional reserve that the Smart chip will protect by turning off the battery once it reaches the "0% mark". The Smart chip will also continue to drain the battery further past the 0% mark eating into this battery reserve. Now one full discharge like this probably would not hurt the battery as long as the battery is recharge within a reasonable amount of time. However it certainly does nothing to benefit the battery health whatsoever and it is never recommended to let a battery fully discharge. There are some practices of only charging the battery to 75%-80% that can improve battery life, but individual run time will be sacrificed. My recommendation is if the battery is under 65% than to charge the battery if it is possible to do so.
After doing a factory reset the same problem remained. Sprint exchanged the phone for a new photon. Put my extended battery back in and so far no problems at all with the exception of not being able to join my contacts with my FB contacts.
I have been discharging my Photon and previous phones to 0-5% at least 3 times for a week and did not find any difference in capacity, compared with the new battery. Lasts from the morning to the evening. If I should charge it on 65%, then the phone would be unusable for me.
Like Schale said it could be an actual phone issue, but i highly doubt it. I would try some things before assuming its a problem with your phone. Do this... Also this assumes you are unlocked or at least rooted.
1: Factory reset so to start fresh with no crap applications (task killer apps do more harm than good, as do most battery saver apps)
2: Drain battery till the phone shuts itself off (Dude what right about it reserving a certain amount of juice to not cause damage)
3: Charge to 100% (Dont use the phone during this time.)
4: Use a battery calibrator app (rooted) or recovery (unlocked) to wipe the battery stats.
5: Drain power as fast as possible till phone shuts off
6: Charge to 100% (Again, dont use the phone during this time.)
You can now use the phone how you normally would. If you don't notice a drastic increase in battery after discharging and recharging three or four times over the next few days, I would be comfortable in assuming it's a phone problem. Good luck!
Having issues with roms lately. Some roms won't even give me 2 hours of battery life. (Maybe 4 hours even in standby!!)
Talked to Motorola over the phone they think maybe it's the battery, they sent me a free one but I still have the same issues.
Sometimes I look at my phone and it has already been drained. Then I see that standby has taken up 75% of the battery. Like wtf lol.
So the question is, what is the best ROM for battery life?
Thanks.
Neutrino v2.9
Make sure you install bluesleep fix if the rom you are using doesn't have it....
For me the best results have: "old" ALIEN and CM7 !!!
CM7 - 1day and 27minutes with 7hours and 28minutes screen on (30-35% luminoziti)
Sorry for english!
Atrix - "CM7"
Seeing as it happens with every ROM, you may try to calibrate your battery, it may help. Download 'Battery Calibration' app from the Play Store and follow the in-app instructions. I always calibrate mine after changing ROMs exactly because problems like yours happened to me in the past.
MaxK47 said:
Seeing as it happens with every ROM, you may try to calibrate your battery, it may help. Download 'Battery Calibration' app from the Play Store and follow the in-app instructions. I always calibrate mine after changing ROMs exactly because problems like yours happened to me in the past.
Click to expand...
Click to collapse
That app does not calibrate the battery. All it does reset the previous battery usage graphic table.
Sent from my MB860 on CM10 (Epinter)
Soldier-2Point0 said:
That app does not calibrate the battery. All it does reset the previous battery usage graphic table.
Sent from my MB860 on CM10 (Epinter)
Click to expand...
Click to collapse
But it helps. If I don't do it, after 2~3 flashes of different ROMs I start to have huge drops (staying at ~80% for 6 hours, then instantly dropping to 20%) or the system misreads the actual battery capacity (turning off with at least 30% battery remaining, for example).
Have you tried wiping battery stats?...
Charge the phone as far as it will go (lets say over night)(also if you need to plug the phone into the charger after it has charged over night without the battery in it so you get he battery with a question mark, then put the battery in and it should show like 5% battery or something then let that charge as long as it will, which is usually around 15% if i remember correctly), then wipe battery stats in cwm or whatever way you prefer. Reboot the phone and use it until it is completely dead (0% battery and the phone shuts itself off and wont turn back on, but do not try to drain the battery using video loops or anything, just use it like you normally do. Then charge it up to 100% but do not turn it on, let it stay on the charging screen until it gets to 100% and dont use or unplug it at all. It should take longer to get from 99% to 100%, just be patient Hopefully that solves the issue.
Although there are similar reports of battery issues, I haven't found anyone with the same issue. I have an SGS2 running 4.0.4 - all stock and although I'm on Orange, it's not an Orange handset. It's just over a year old.
Since being on 4.0.4, I've noticed the battery level drops when I switch it back on/reboot. It has been dropping by 20-30% but recently it's been dropping all the way to 1%. It has also taken to switching itself off with no warning (or shutdown) - I can only assume because it suddenly thinks the battery is at 0% despite what it was seconds beforehand.
As a typical example, it was charged to 100% (4200mV as shown via *#0228#). After a few hours standard use, it was around 60%. Then, seemingly when I'm doing something intensive like recording video or downloading something over a data connection, the screen goes off and I realise it's dead. I restart and the "battery critical" warning comes up - 1%. It dies again and I remove the battery for a minute, put it back, then power up. This time it says 9%. Then after a short while it dies again. So I connect the charger. After a couple of seconds, the battery charging indicator shows about a 1/3rd full. I switch on and the battery is now at 46%. Whatever the issue, reattaching the charger seems to rescue it - even if it's not back to the original level. The charge levels (in mV) seem to match the percentage.
This happened so much that a few weeks ago, it wouldn't even start and I had to wipe and reinstall everything. It does work now, but still crashes at least once a day. I'm not sure what else to do other than wait for Jelly Bean and hope that will miraculously fix the problem.
I have attempted "battery calibration" though it's a bit difficult - and I've read that it doesn't actually work anyway.
I am a noob - so please treat me like an idiot in case I've missed something obvious.
Thanks.
Dude, I believe it's time to buy a new battery.
1.Battery Calibration apps don't work(They don't do anythight good) Battery calibrates selfs...
2.I think that your battery is dead like my (Buy one it cheap)
3.And I think too that Insane gauge chip is very crazy...(You can reset it maybe helps... need flash Syiah and Get Stweaks)
I have the exact same problem, see this thread: http://forum.xda-developers.com/showthread.php?t=2062056
Tomorrow I will buy a new battery, I can tell you if this will help me out
Yup, battery calibration is a myth. Google already states that you do not need to reset your fuel gauge for ICS/JB devices. All battery parameters are automatically reset when it's 100% charge.
Sent from my GT-I9100 using Tapatalk 2
Thanks
I've ordered a new battery which I should have later this week. Let's see if that does anything useful. In the meantime, I'm attaching some battery meter screenshots to illustrate the problem.
Thanks for your suggestions so far!
xdanoober said:
Yup, battery calibration is a myth. Google already states that you do not need to reset your fuel gauge for ICS/JB devices. All battery parameters are automatically reset when it's 100% charge.
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
No, this dont apply for us. Google stated that is useless wipe battery stats, the didnt say anything about our fuel gauge chip
Enviado desde mi GT-I9100 usando Tapatalk 2
Solved
:victory: New battery installed and, 24hrs later, no crashes or glitches. My phone's as good as new. Thanks for the suggestions folks!:victory:
My battery went from 50% to 15% after a reboot.
The bizarre thing, though, was that I watched it increase from 15% to 20% charge even though it was not plugged in.
Weird...
Mr Anderson said:
My battery went from 50% to 15% after a reboot.
The bizarre thing, though, was that I watched it increase from 15% to 20% charge even though it was not plugged in.
Weird...
Click to expand...
Click to collapse
fuel gauge.
Hey guys what's this means?!
My battery is falling down automatically with no use!
See
I am wondering about this faulty behavior because i am in 510 firmware with no extra apps installed
I had this issue with. 475 too.
Help me please if this is a hardware issue send it back for second time in this week!
Instead of i charged this phone two time totally when i am bought it.first time faulty drainage happened yesterday when i played some game and battery went to 80% then i went to sleep for half an hour and when i turn the phone on again,noticed to battery is lost to 30%!
Sent from my C6802 using Tapatalk 2
I noticed a faulty battery usage indicator on mine.
It happened 2 or 3 times, when I plugged the USB cable to the phone (other end connected to a PC or charger) and the phone LED immediately turned green and the battery indicator jumped from 60% to 100%.
Nothing happens if I re-plug the charging cable, the phone keeps saying it's fully charged. Even powering off doesn't help.
The 100% power won't drain faster but I noticed that when it goes to 30% the phone will shutdown because no more juice is inside the battery and the indicator will go back to less than 10% after re-plugging the power cord.
luisarn said:
I noticed a faulty battery usage indicator on mine.
It happened 2 or 3 times, when I plugged the USB cable to the phone (other end connected to a PC or charger) and the phone LED immediately turned green and the battery indicator jumped from 60% to 100%.
Nothing happens if I re-plug the charging cable, the phone keeps saying it's fully charged. Even powering off doesn't help.
The 100% power won't drain faster but I noticed that when it goes to 30% the phone will shutdown because no more juice is inside the battery and the indicator will go back to less than 10% after re-plugging the power cord.
Click to expand...
Click to collapse
Is this happened even after new update for you?
Anybody else has similar issue like me?
i am so confused ? !
Sent from my C6802 using Tapatalk 2
babakmaham said:
Is this happened even after new update for you?
Anybody else has similar issue like me?
i am so confused ? !
Sent from my C6802 using Tapatalk 2
Click to expand...
Click to collapse
I'm using the build 14.1.B.0.471
luisarn said:
I'm using the build 14.1.B.0.471
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Click to collapse
In your case i think that's better try it with latest firmware.maybe solved.
But for me,the story is different,unfortunately!
another Q has been busy in my mind. Why sony didn't used a better charger for this phone?! Charger has only 1.5 mA output power! For test, i am charging the phone now with s IV charger (2mA)
Sent from my C6802 using Tapatalk 2
babakmaham said:
In your case i think that's better try it with latest firmware.maybe solved.
But for me,the story is different,unfortunately!
another Q has been busy in my mind. Why sony didn't used a better charger for this phone?! Charger has only 1.5 mA output power! For test, i am charging the phone now with s IV charger (2mA)
Sent from my C6802 using Tapatalk 2
Click to expand...
Click to collapse
Higher mA output is not necessarily better.
Taking more time to charge is more gentler on your battery.
Pumping up the mAh to 2 or higher will improve the charging time, but the number of total cycle charges (i.e. life span of your battery) will go down and suffer.
Anyway, 3 hrs from empty to full is normal, right? Anything quicker is a quickcharger.
jewelkobayashi said:
Higher mA output is not necessarily better.
Taking more time to charge is more gentler on your battery.
Pumping up the mAh to 2 or higher will improve the charging time, but the number of total cycle charges (i.e. life span of your battery) will go down and suffer.
Anyway, 3 hrs from empty to full is normal, right? Anything quicker is a quickcharger.
Click to expand...
Click to collapse
Ok.no problem dude.3 hours is good time charge for me,but i have another issue that is explained to you.my battery is falling down suddenly!i don't know what is caused for this behavior.see picture in this post!this is a normal drain after a couple of hours.but after one or more hours that is falling down suddenly to 40%! Without any usage.
Sent from my C6802 using Tapatalk 2
babakmaham said:
Ok.no problem dude.3 hours is good time charge for me,but i have another issue that is explained to you.my battery is falling down suddenly!i don't know what is caused for this behavior.see picture in this post!this is a normal drain after a couple of hours.but after one or more hours that is falling down suddenly to 40%! Without any usage.
Click to expand...
Click to collapse
Good thing you included screenshots from GSAM, so that we have something to go on now.
Remaining (Av.use) 18:51
This tells me that you once had a phone that was efficient, so from the day you realised this drop in performance, scrutinize what settings have changed (inc app installation)
Remaining (last 15 min usage) 5:47
IF u continue using your device in the way you have done in the last 15 mins, you have under 6 hours left of battery power.
In the 15% discharge since fully charged (and since when GSAM started taking this data on your screenshot), 62.9% of power was used by screen.
Some conclusions can be drawn here.
As you mention, you were probably playing some games during the 4hrs and 11min the phone was turned on(from when it was fully charged and then unplugged), very likely during the latter stages than earlier from when the phone was fully charged.
I see your screen is set on DIM, and that it has been active for nearly one hour. Your display was on for 25% of the time since full charge, and that has only used up 15% of battery.
Whether it is games or video playback, screen will be on, and looking at the data there is nothing faulty. In another words, set at dim, 7 hours or so of continuous display on sounds about right..(1 hr already used plus 5:47 expected left)
Now, if your complaint is that if you turned your phone screen off and left it that way for a few hours, came back, then found massive power drain, again, a few conclusions can be taken.
It is a shame there is no screenshot of the app usage form the exact same period. But, If you left the game app open in the background, it is possible that power is drawn still, possibly if your phone is not sleeping properly. In another words, CPU usage for game is there even when not used.
Do you have stamina mode on?
Conclusion... Form GSAM data, there is nothing wrong.
Looking at the first screen capture in OP, as you say, drain happened when phone was not awake, and screen off. I can only conclude that there was an app(s) open at the time which had been still running. If the app(s) is not closed or hibernated properly, it can happen.
If your phone felt hot at that time, it confirms CPU usage.In another words something was left open. If it was cold, even though the phone had been off for a while, then it could be faulty battery calibration.
And next time you see this big drop in charge, take screen shots of GSAM from apps and system. We would know then for sure.
jewelkobayashi said:
Good thing you included screenshots from GSAM, so that we have something to go on now.
Remaining (Av.use) 18:51
This tells me that you once had a phone that was efficient, so from the day you realised this drop in performance, scrutinize what settings have changed (inc app installation)
Remaining (last 15 min usage) 5:47
IF u continue using your device in the way you have done in the last 15 mins, you have under 6 hours left of battery power.
In the 15% discharge since fully charged (and since when GSAM started taking this data on your screenshot), 62.9% of power was used by screen.
Some conclusions can be drawn here.
As you mention, you were probably playing some games during the 4hrs and 11min the phone was turned on(from when it was fully charged and then unplugged), very likely during the latter stages than earlier from when the phone was fully charged.
I see your screen is set on DIM, and that it has been active for nearly one hour. Your display was on for 25% of the time since full charge, and that has only used up 15% of battery.
Whether it is games or video playback, screen will be on, and looking at the data there is nothing faulty. In another words, set at dim, 7 hours or so of continuous display on sounds about right..(1 hr already used plus 5:47 expected left)
Now, if your complaint is that if you turned your phone screen off and left it that way for a few hours, came back, then found massive power drain, again, a few conclusions can be taken.
It is a shame there is no screenshot of the app usage form the exact same period. But, If you left the game app open in the background, it is possible that power is drawn still, possibly if your phone is not sleeping properly. In another words, CPU usage for game is there even when not used.
Do you have stamina mode on?
Conclusion... Form GSAM data, there is nothing wrong.
Looking at the first screen capture in OP, as you say, drain happened when phone was not awake, and screen off. I can only conclude that there was an app(s) open at the time which had been still running. If the app(s) is not closed or hibernated properly, it can happen.
If your phone felt hot at that time, it confirms CPU usage.In another words something was left open. If it was cold, even though the phone had been off for a while, then it could be faulty battery calibration.
And next time you see this big drop in charge, take screen shots of GSAM from apps and system. We would know then for sure.
Click to expand...
Click to collapse
Special thanks for your great comment
Fortunately,that horrible battery drainage don't happened from yesterday to now.
This means there is no faulty behavior after last full charge that i have been!
I don't know that reason but i done some actions after fully charged phone yestarday:
1.instilling Gsam battery pro as you have seen!
2.Charging with another charger(2mA galaxy s4 charger)
3.setting screen brightness to 30%
4.setting off "optimized backlight"
5.battery calibration with "battery calibration" app
This new informations from my battery behavior after 19 hours fully charged at last day from now and i hope that horrible drainage wouldn't happen in future else!
Sent from my C6802 using Tapatalk 2