About battery calibration. - Huawei P9 Lite Questions & Answers

Hi,
Somebody can help me? Because i have changed my display for a new one because the old was broken.
In the process the battery need be removed, normaly it's hard to do that, because the lot of glue that includes the battery.
The change of display was succesfull, but since that day my battery not show the % of charge correcly.
Y try to calibrate without root, let it shut down, then charging to 100% and discharging again but it doesnt work.
The battery works because i use the phone all day, but the % its incorrect.
Somebody could help me with an advice to repair this issue please.
Thanks in advance.!

sounds like your battery is screwed, i don't recommend this as they are mostly BS but try download a couple battery calibration apps and use them you can also try wiping cache and davisk cache

The only battery calibration apps that work are only the ones that use root.
I recommend changing the battery with a new fresh one, if you don't want rooting your phone

Related

Battery inaccurate after boot

Hi all
since a week or so i have a strange problem with my sgs and i hope you can help me to fix it
Everything works just fine (battery is accurate) until i switch off / reboot the phone
but at next boot the battery reports a very low value
(e.g. the phone has 55% battery left and after the reboot it reports only 8%)
with Froyo 2.2.1 (Speedmod Kernel) it would stay at that level until the battery has really drained to that point
With GB (JVQ - Galaxian Kernel) the battery percentage increases slowly
What i tried so far:
first of all, i deleted the battery stats for a few times and because that didn't work i upgraded to JVQ (with repartitioning and all), but that didn't solve the problem either
i don't really know what to do anymore and i hope someone can help me
thanks
Just do a few drain/ charge cycles and that should sort it
Sent from my GT-I9000 using XDA Premium App
First off, wiping batterystats.bin alone won't help.
Try this:
1. Charge to 100% until it says unplug charger.
2. Wipe batterystats.bin from recovery, unplug and then reboot
3. Drain your phone's battery until it shuts itself down
4. Charge to 100% without interrupting the charge
5. Enjoy :3
thanks for the quick replay!
unfortunately thats basically what i have already done
since the problem happened the first time, i have charged the phone at least 5 times and wiped the battery stats for 2 or 3 times right after charging the phone to 100%
its true that normally i don't drain the battery completely, but yesterday i have done just that and than let the phone charge overnight - but that didn't solve the problem
i will try to fully discharge the phone a few more times and load the battery while the phone is switched off
still i hope someone has an other suggestion how to solve this annoying problem
thanks
lol - stop deleting the batterystats.bin for starters.
The batterystats needs to indentify the top and bottom markers such as 0% - 100%, delete it ONCE.
Firstly, turn the phone off, charge the phone to 100%, bump charge it, till 100% truely.
This means, unplug...then plug it in again until you keep getting 100% show up.
Boot up into recovery then delete the batterystats.bin.
Use it heavy, activate everything and drain it. Make sure it is compeltely drained, try turning the phone back on, take the battery out for about 2 mins, try turning it on again, if it doesnt turn on, you've drained it.
Plug your charger in, do not turn the phone on, let it charge to 100%, again, bump charge it until 100% truely full, turn the phone on and let it run its natural course this time.
Do not delete the batterystats.bin again, you will have to repeat the process, it will take a good 2/3 times of charge/discharge for the stats to settle.
Hopefully helps dude! Good luck
thanks pidz!
just to clarify: i have had my sgs for a half year now and i never wiped the battery stats until last week
But i haven't tried bump charging jet - i really don't like that process as it is bad for the battery but might be worth a try, thanks
it usually happens with non original batteries. did you changed a battery? or maybe you got a fake one with you phone?

{Q} Battery issue; please help

Hi, i bought tattoo from another user... to encounter a problem with battery, when i charge it-it never goes 100%, but charges to for an example 33%... then it instantly drops to 16-17% until it reaches to 1% (fast dropes)...but it stays like that for one or two days (like it has been charged to 100%). I did a factory reset-it dind't work (offical rom, not rooted). I first tought it was a rom problem it self... then i rooted my phone and flashed cm7 (wiped all 3 times)... and the problem still presists. I dont know what to do... i tried to put my batt. to another tattoo, and it works fine...also tried another charger, doesnt help... i dont know what to do. Please help....
Thanks.
Aca902 said:
Hi, i bought tattoo from another user... to encounter a problem with battery, when i charge it-it never goes 100%, but charges to for an example 33%... then it instantly drops to 16-17% until it reaches to 1% (fast dropes)...but it stays like that for one or two days (like it has been charged to 100%). I did a factory reset-it dind't work (offical rom, not rooted). I first tought it was a rom problem it self... then i rooted my phone and flashed cm7 (wiped all 3 times)... and the problem still presists. I dont know what to do... i tried to put my batt. to another tattoo, and it works fine...also tried another charger, doesnt help... i dont know what to do. Please help....
Thanks.
Click to expand...
Click to collapse
Looks like a battery calibration problem, fully charge your battery, go to clockworkmod (if you use it, i dont know does this option exist in amon-ra), then go to advanced, wipe battery stats, after that do a full drain and then a full charge again
Yeah, I'm having the exact same problem.
I read that the problem would go away if you buy new battery for your phone. I, myself, tried re-calibrating battery but had no luck. With re-calibrated battery it looks like that battery is in a bit better shape than it was previously.
i had the same problem and i bought another battery and the problem wasn't yet solved .. but i think it got fixed by it self.
Try doing Wipe Battery state couple more times..
Try another battery to see how changes
Aca902 said:
Hi, i bought tattoo from another user... to encounter a problem with battery, when i charge it-it never goes 100%, but charges to for an example 33%... then it instantly drops to 16-17% until it reaches to 1% (fast dropes)...but it stays like that for one or two days (like it has been charged to 100%). I did a factory reset-it dind't work (offical rom, not rooted). I first tought it was a rom problem it self... then i rooted my phone and flashed cm7 (wiped all 3 times)... and the problem still presists. I dont know what to do... i tried to put my batt. to another tattoo, and it works fine...also tried another charger, doesnt help... i dont know what to do. Please help....
Thanks.
Click to expand...
Click to collapse
Hi, I've the same problem, tried with factory reset, cm7, wipe battery stats, wipe dalvik cache, and no changes at all. The battery never charges to 100%, and it drops to 1% very fast. When I put that battery to another HTC Tattoo, it shows that the battery is fully charged.
Do you fixed this issue?

Battery issue since unrooting

Hey all,
Since unrooting my phone the battery seems to go down a lot faster, now I didn't clear anything off the phone once I added the new firmware so that maybe the issue.
When I look at the battery meter it's saying most of it's being used by android services, can anyone help me sort this?
Cheers
Paul
Hi,
Try recalibrating your battery . To do it, just let it fully discharge, then charge it completely while turned off (battery icon will pop up). After it you'll let it discharge completely again and do the same. I don't know if it's really the method, but always worked for me .
~Lord
Before unrooting did you use stock rom too?
Sent from my GT-I9500 using XDA Free mobile app
Yes used stock firmware to unroot everything and went okay but now my battery doesnt last long and wondered what I can potentially try to sort the issue out. I have tried letting the battery drain as above.
Paul
XxLordxX said:
Hi,
Try recalibrating your battery . To do it, just let it fully discharge, then charge it completely while turned off (battery icon will pop up). After it you'll let it discharge completely again and do the same. I don't know if it's really the method, but always worked for me .
~Lord
Click to expand...
Click to collapse
It's not.
Charge to 100%, pull battery, charge again to 100% while off. Battery calibrated. Fully discharging only damages your battery.
Yes I have done this also.
I have now done a factory rest and wiped everything clean so I will report back with my findings. Fingers crossed.
Paul
Problem fixed after the factory reset

[GUIDE] Know more about battery life on your LG G3 by having accurate readings!

Hi just sharing some experience with my battery life as it lasted me more than half a day and I'm quite glad with the results. So let me share what i did...
*Rooted my phone
*Did a nandroid backup (in case battery readings are way off)
*Installed xposed
*Downloaded Boot Manager from xposed.
*Disabled unwanted startup apps such as facebook, etc.
*Downloaded Titanium backup and disabled some bloatwares like McAfee, Email, etc.
*Downloaded Battery calibration from playstore by NeMA.
*Charged my phone to 100% and did the calibration.
*i let the phone discharge and charge it up to 100% without opening the phone.
FAQ:
1. So what does battery calibration do exactly? - Root is required. It deletes your batterystats.bin and replaces it with a fresh one. This is usually used after flashing a custom rom. I tried my luck on stock and seen the difference.
2. Do i get a bootloop if i deleted batterystats.bin? - chance is 0%. You can actually manually delete it using your root explorer then reboot. Now after reboot, you can see that a new batterystats.bin is there.
3. Does battery calibration support all android device? - probably yes.
4. Does it improve battery life? - NO. it actually gives you an accurate reading of your battery. If your battery starts to drain faster than it should, go get a new battery.
And here i got almost 16 hours of battery as i wasn't able to last a day before without 2nd charge. I was at 4G with auto mode, played clash of clans, brightness set to 50 with auto brightness on, some music for 4 hours straight, and a lil bit of Youtube. Btw I'm using stock rom 4.4.2 and so far this is the best battery experience for me. Try it and I hope this also works for most of you.
Deleting batterystats.bin does nothing you describe.
All apps concerning this matter ("calibrating") are completely useless and bogus :good:
Kinda useless on our self-calibrating charging chip... Besides, batterystats does not influence displayed percent, if we are not talking about samsung phone on 2.3 rom...
YaDr said:
Kinda useless on our self-calibrating charging chip... Besides, batterystats does not influence displayed percent, if we are not talking about samsung phone on 2.3 rom...
Click to expand...
Click to collapse
I've got an LG G3 D855 that shuts down at about 30% every time. When it shuts down it says 0%. Ive just replaced the battery (twice) after getting stuck in the endless loop restart. Could this be a problem with the batterystats.bin file? Truly stumped here and would really appreciate some help.
Thanks, D.

Battery reading issues

Hey everyone. So I bought a second hand note 4 recently and have been having battery problems.
I did a full wipe install of CM13 and the battery dropped to 0% at random times and I had to plug it in the charger for the phone to even boot as it would just restart as soon as it turned on. Anyway, i thought this is probably due to faulty battery. I purchased another one and now this one doesn't reboot at random times but seems like the phone keeps reading the battery percentage wrong, sometimes it doesn't charge over certain percent, just gets stuck at 77% or 63% or any percentage really. If I remove the battery and plug it back in, it shows a completely different percentage everytime. I have tried wiping battery stats, do a full discharge/charge, nothing seems to help. Battery drains fairly fast too, once I manage to get it to 100% it shows that expected time is like 2-3hrs if screen on. Thanks!
idoluvizsick said:
Hey everyone. So I bought a second hand note 4 recently and have been having battery problems.
I did a full wipe install of CM13 and the battery dropped to 0% at random times and I had to plug it in the charger for the phone to even boot as it would just restart as soon as it turned on. Anyway, i thought this is probably due to faulty battery. I purchased another one and now this one doesn't reboot at random times but seems like the phone keeps reading the battery percentage wrong, sometimes it doesn't charge over certain percent, just gets stuck at 77% or 63% or any percentage really. If I remove the battery and plug it back in, it shows a completely different percentage everytime. I have tried wiping battery stats, do a full discharge/charge, nothing seems to help. Battery drains fairly fast too, once I manage to get it to 100% it shows that expected time is like 2-3hrs if screen on. Thanks!
Click to expand...
Click to collapse
battery displaying different percentage after u remove it and put it back in is normal i have 3 note4s all do the same (up to 10 percentage change, it either increases or decreases) but the other issues like getting stuck on a certain percentage are not normal make sure u have the genuine battery and try stock rom.
yeah, i tried stock and the same thing really. such a random issue. I just noticed that battery charges once I turn the screen on and use it , so it only gets stuck on random percent only with screen off.
idoluvizsick said:
yeah, i tried stock and the same thing really. such a random issue. I just noticed that battery charges once I turn the screen on and use it , so it only gets stuck on random percent only with screen off.
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Click to collapse
U can try recalibraring the battery....
Bishal 00 said:
U can try recalibraring the battery....
Click to expand...
Click to collapse
yeah, i said I wiped battery stats, which is basically recalibration
once the battery is charged to 100% it also drops first 10-20% really fast and then it gets better but still I only get around 2hrs screen time
idoluvizsick said:
yeah, i said I wiped battery stats, which is basically recalibration
Click to expand...
Click to collapse
Oops my bad..Didn't read your whole post...
the only way to fix this replace your battery by new one
i tried all options (Format ROM - Wipe battery status - Getting back to stock ROM - Unroot - re Celebrate apps - Changing recovery-Removing battery from device for while sleeping - charge without fast charge - charge via USB)
i asked myself after that all of this headache doesn't worth 20$, i replaced the battery with new one and its working fine now
A0_o said:
the only way to fix this replace your battery by new one
i tried all options (Format ROM - Wipe battery status - Getting back to stock ROM - Unroot - re Celebrate apps - Changing recovery-Removing battery from device for while sleeping - charge without fast charge - charge via USB)
i asked myself after that all of this headache doesn't worth 20$, i replaced the battery with new one and its working fine now
Click to expand...
Click to collapse
yeah, i replaced battery as well but it's still the same issue. old one at least charged fully but would randomly reboot on me, the new one doesn't reboot but drains extra fast and doesn't always charge fully. can't believe both batteries are faulty
I am sorry for summoning this old post but did you find any solution to your problem? I have exactly the same experience with my note 4.
Thanks!
Is there a solution for this problem?
Power down and then out-and-in same battery and my stuck-at78%... was 100% when started.
if you having problems with auto restarting.... download the app " WAKE LOCK" and put it on Partial Wake Lock setting... your restarts will be a thing of the past.

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