GT-i8190 random reboots + battery drain - Galaxy S III Mini Q&A, Help & Troubleshooting

Since two months my phone randomly reboots losing a great percentage of his charge.
It usually happens when i'm taking a lot of photos, increasing the probability of reboots when i'm using flash. It also happens when i'm using Navigator or anyway i'm requesting a lot of data on the net.
If the charge is under the 50% the probability increases also with the normal use.
The phone Hard reboots and the charge falls to 1%-20% depending to the initial percentage.

HylianHero said:
Since two months my phone randomly reboots losing a great percentage of his charge.
It usually happens when i'm taking a lot of photos, increasing the probability of reboots when i'm using flash. It also happens when i'm using Navigator or anyway i'm requesting a lot of data on the net.
If the charge is under the 50% the probability increases also with the normal use.
The phone Hard reboots and the charge falls to 1%-20% depending to the initial percentage.
Click to expand...
Click to collapse
Replace your battery with a new one.

jstath1972 said:
Replace your battery with a new one.
Click to expand...
Click to collapse
I'll try with another GT-i8190's Battery that i have in my home

HylianHero said:
I'll try with another GT-i8190's Battery that i have in my home
Click to expand...
Click to collapse
Did it work?

jstath1972 said:
Replace your battery with a new one.
Click to expand...
Click to collapse
same happened to me,tried everything from firmware side but no success.
changed my battery>new phone:good:

Related

[SOLVED] Incorrect Battery Values

This seems to be quite a common and somewhat obscure at the same time.
Many people have reported installing a new rom or even just powering up their phone and seeing a battery % much different from what they expect. Most often much lower than it should be. Evidently this corrects itself after some time but it's a real problem if your display reads <15% because you really have to plug it in then, even with you know you have 90% battery!
So, here's the solution after testing it under different circumstances over a few days:
Simply boot your phone when it is not plugged in to a power source and battery % will be accurate.​
That simple. Silly LG!
So, if you flash a new rom, unplug the USB cable before you reboot...
Hit 'Thanks' below for the 50 reboots I did to prove this...
hehehe jups allready figured that out on myself tho haha. But indeed that's kinda silly of LG
djmcnz said:
This seems to be quite a common and somewhat obscure at the same time.
Many people have reported installing a new rom or even just powering up their phone and seeing a battery % much different from what they expect. Most often much lower than it should be. Evidently this corrects itself after some time but it's a real problem if your display reads <15% because you really have to plug it in then, even with you know you have 90% battery!
So, here's the solution after testing it under different circumstances over a few days:
Simply boot your phone when it is not plugged in to a power source and battery % will be accurate.​
That simple. Silly LG!
So, if you flash a new rom, unplug the USB cable before you reboot...
Hit 'Thanks' below for the 50 reboots I did to prove this...
Click to expand...
Click to collapse
What about every time I use a custom rom the battery % indicator jumps right down to 90-95% when unplugging from charger ? Do you have a solution for that ?
reidar.ostrem said:
What about every time I use a custom rom the battery % indicator jumps right down to 90-95% when unplugging from charger ? Do you have a solution for that ?
Click to expand...
Click to collapse
Try rebooting after you disconnect power.
djmcnz said:
Try rebooting after you disconnect power.
Click to expand...
Click to collapse
Sorry to say the same..
Even while charging with the phone shut down, pulling it off the charger and then booting this happens. On my phone I have experienced it on all MCR's.
It's really not a big deal as long as the battery performs as Stock 10b, that build has been stable batterywise on my phone. But staying stock isn't too much fun
Well, every time I charge, whether I reboot/shut down before unplugging or not, my charge always maxes out at 96%.
Annoying and I'd like it sorted if at all possible.
Anyone?..........lol
Sent from my LG-P990 using XDA App
ye i got that exact same issue i was wondering why that was happening and hoped that a simple reboot would fix it but its a bit more complicated than that i suppose...
also the battery reset in cwm didnt fix the loading till 97% w/e percentage.
when i install the stock rom it allows me to load it till 100% though pretty weird stuff -.-
mcnob said:
Well, every time I charge, whether I reboot/shut down before unplugging or not, my charge always maxes out at 96%.
Annoying and I'd like it sorted if at all possible.
Anyone?..........lol
Click to expand...
Click to collapse
I had a replacement netbook battery that could only max to 90%. So, over the weekend, I practically drained it to 0% (not a healthy practice for Li-ion batteries but I was desperate). Took out the battery for a while, and then recharged for several hours. Well, it seems to get up to 100% now.
Perhaps you could try using the the phone until it very low on battery before recharging. Maybe the charging process in the phone needs some sort of recalibration. But should not be doing this all the time as it will reduce Li-ion battery longevity.
Let mine totally die last night so it wouldn't even turn on at all. Took out and replaced battery and then charged it overnight and hey-presto, when I unplugged it this morning, it stayed at 100%.
Solved indeed....for me anyway. Feel free to try the same and post your results.
Sent from my LG-P990 using XDA App
mcnob said:
Let mine totally die last night so it wouldn't even turn on at all. Took out and replaced battery and then charged it overnight and hey-presto, when I unplugged it this morning, it stayed at 100%.
Solved indeed....for me anyway. Feel free to try the same and post your results.
Sent from my LG-P990 using XDA App
Click to expand...
Click to collapse
I'll be sure to try your tip man. But not easy drain it completely when I always need the phone :=)
I guys! I've got the same problem.
I think that it could depend on the "full battery popup FIX" that Paul introduced in his roms by the FR8.
So I would like to ask Paul if you can create a patch to remove that fix. Just to try it!
According to me, incorrect battery amount depend on a wrong voltage read error (offset introduced?) by the rom. :blink:
In my case, I have followed many times battery wype procedure without positive issue. The matter leaves only by flashing original roms.
I think that if Paul have written a wrong battery values range (to delete the battery full popup) that can be traduced in an incorrect battery status displays.
manciu said:
I guys! I've got the same problem.
I think that it could depend on the "full battery popup FIX" that Paul introduced in his roms by the FR8.
So I would like to ask Paul if you can create a patch to remove that fix. Just to try it!
According to me, incorrect battery amount depend on a wrong voltage read error (offset introduced?) by the rom. :blink:
In my case, I have followed many times battery wype procedure without positive issue. The matter leaves only by flashing original roms.
I think that if Paul have written a wrong battery values range (to delete the battery full popup) that can be traduced in an incorrect battery status displays.
Click to expand...
Click to collapse
It was occurring before Paul introduced that change unfortunately...
After I wrote here, I registered a premium account to Paul's from modaco site and toke a custom fr12 rom without "battery full popup remove patch". Now I'm going to sleep and plugin the 2x to charge. Tomorrow I'll write here if is that the solution...
djmcnz said:
It was occurring before Paul introduced that change unfortunately...
Click to expand...
Click to collapse
I'm sure it's occured from fr8 in my case. With stock rom I haven't any battery problem so there is something wrong in fr raleases of course... I hope somebody discovers what is...
manciu said:
After I wrote here, I registered a premium account to Paul's from modaco site and toke a custom fr12 rom without "battery full popup remove patch". Now I'm going to sleep and plugin the 2x to charge. Tomorrow I'll write here if is that the solution...
I'm sure it's occured from fr8 in my case. With stock rom I haven't any battery problem so there is something wrong in fr raleases of course... I hope somebody discovers what is...
Click to expand...
Click to collapse
Perhaps, but you can not conclude it was introduced by MCR. You logic is wrong there.
Even without "battery full popup fix" it doesn't work good...
Battery level, when unpluged, stay at 100% for 2 minutes afterwards drop down fast until 85% then drain normally...
I'm getting huge battery display problems no matter what I do.
When I took it off the charger this morning, it said I had 100%... thats fair enough. However it stayed at 100% all day, so to "refresh" it this evening I restarted the phone, and low and behold it now says I have 27% left. But again, it's just sticking at that value, even with me now plugging the phone into the wall to charge. It simply says "Charging (27%)" and won't budge, likely until I restart the phone again.
Sometimes it works fine, it seemed to be doing ok last night before I put it on the charger. Any tips/suggestions? Is this something likely to be fixed when the Gingerbread update rolls around?
This is my first real smartphone, and am fairly annoyed as its giving me a fair few problems that I've not had from other electronic devices.
As I stated in another thread, I had the same issue while on MoDaCo Fr12. However, after reverting back to stock, the battery percentage is spot-on and I'm getting up to 48 hours use out of it.
Draw your own conclusions.
Sent from my LG-P990 using XDA App
That sounds super, but I'm still on stock too. About the only things of note I've done are root and switching to Launcher Pro. Oh, and Clockwork Mod of course. Perhaps a complete reboot is needed, we'll see how it goes.
Saying that - since charging, my phone has been at 90% all evening, until right this moment when it changed to 89%. It's less than I'd expect on this type of phone for 3-4 hours use (or lack thereof, I've barely touched it), but it's a start eh?
Welcome to the world of smartphones my friend. I've had various handsets over the last 4 years from iphone to android and a day and a half out of the battery is about average......at best. ;-)
Sent from my LG-P990 using XDA App
Just to clarify, what I meant in my previous post was that I was expecting to battery to drop a lot more than it did. The fact that it only went down 1% in several hours of use prompted me to think that the battery value was messed up.
As it is, I've not charged my phone in the 36 hours since, and it tells me I have 73% battery left. Perhaps it is performing extremely well after all? If that's the case then I'm more than happy with it, but being the pessimist I'm still expecting the phone to turn off sometime with the battery reporting incorrect values.

Battery virtually dropping, hardware or software problem?

Hello,
for months it has been happening that when the battery usually reaches 25% (but not always sometimes even 40ish) the battery indicator drops to 19% and it could either remain stuck at that value until the charge actually drops below 19% and continue the usual drop or it will rapidly drop to lower values in big steps like (19->10->4) in minutes to finally actually automatically power off. The strange thing is that it's all fake! When I power the phone again the % will go back to where it should be before this virtual drop happened and continue its usual drop, it always worked until today when for the first time it continued the "game" non-stop until the battery ended the actual charge (for hours)! You have to consider that i was in a place in the mountains where the gsm coverage was very low/non existent so it could be connected. But it got me worried because it couldn't control it!
Apart from a solution I'm asking also what the reason could be. It could seem like a battery problem but why would the phone actually recognize the actual charge after it powers off and I restart it ? Seems like a software problem (battery driver maybe?). But I wouldn't exclude that it could be the battery maybe when the charge gets low the voltage drops dramatically under stress to a point where the phone thinks its almost empty.
I'm using cm7.2 kang 119 with standard kernel.
Have you tried wiping the battery stats..?
Sent from my Optimus 2X using xda premium
-sandro- said:
Hello,
for months it has been happening that when the battery usually reaches 25% (but not always sometimes even 40ish) the battery indicator drops to 19% and it could either remain stuck at that value until the charge actually drops below 19% and continue the usual drop or it will rapidly drop to lower values in big steps like (19->10->4) in minutes to finally actually automatically power off. The strange thing is that it's all fake! When I power the phone again the % will go back to where it should be before this virtual drop happened and continue its usual drop, it always worked until today when for the first time it continued the "game" non-stop until the battery ended the actual charge (for hours)! You have to consider that i was in a place in the mountains where the gsm coverage was very low/non existent so it could be connected. But it got me worried because it couldn't control it!
Apart from a solution I'm asking also what the reason could be. It could seem like a battery problem but why would the phone actually recognize the actual charge after it powers off and I restart it ? Seems like a software problem (battery driver maybe?). But I wouldn't exclude that it could be the battery maybe when the charge gets low the voltage drops dramatically under stress to a point where the phone thinks its almost empty.
I'm using cm7.2 kang 119 with standard kernel.
Click to expand...
Click to collapse
So you say it's done that for a while... obviously it's not possible to pinpoint an app. I guess then you have some funky cruft buildup (say, a lot of rom flashes and some settings getting squiffy) or your battery's dying. I know for sure that the rather excellent Battery Widget Reborn can give a health check on the battery as part of the widget (although I dunno if it's GB compatible). The second solution may be to try a clean wipe. It's drastic, yes, but can clean up any lingering problems if you've been updating for a long time without the occasional wipe. If you haven't...then I dunno.
xExabyte said:
Have you tried wiping the battery stats..?
Sent from my Optimus 2X using xda premium
Click to expand...
Click to collapse
Baaaaaad advice. That's just a placebo and doesn't do anything. So please don't recommend it.
Dekudan said:
Baaaaaad advice. That's just a placebo and doesn't do anything. So please don't recommend it.
Click to expand...
Click to collapse
What do you mean by this? Don't be rude, just help out if you can.
OP: is it possible you update the rom/kernel?
Sent from O2X via xda premium, beware of autocorrection
The thing is it doesn't happen at every single charge! That's confusing! Maybe I'll try to update to #135 and install symbiosis kernel and see.
coolacrille said:
What do you mean by this? Don't be rude, just help out if you can.
OP: is it possible you update the rom/kernel?
Sent from O2X via xda premium, beware of autocorrection
Click to expand...
Click to collapse
I'm not trying to be rude. It's just that battery stats are reset after every reboot, so wiping them does nothing. It's also easier to be blunt to get a message across.
-sandro- said:
Hello,
for months it has been happening that when the battery usually reaches 25% (but not always sometimes even 40ish) the battery indicator drops to 19% and it could either remain stuck at that value until the charge actually drops below 19% and continue the usual drop or it will rapidly drop to lower values in big steps like (19->10->4) in minutes to finally actually automatically power off. The strange thing is that it's all fake! When I power the phone again the % will go back to where it should be before this virtual drop happened and continue its usual drop, it always worked until today when for the first time it continued the "game" non-stop until the battery ended the actual charge (for hours)! You have to consider that i was in a place in the mountains where the gsm coverage was very low/non existent so it could be connected. But it got me worried because it couldn't control it!
Apart from a solution I'm asking also what the reason could be. It could seem like a battery problem but why would the phone actually recognize the actual charge after it powers off and I restart it ? Seems like a software problem (battery driver maybe?). But I wouldn't exclude that it could be the battery maybe when the charge gets low the voltage drops dramatically under stress to a point where the phone thinks its almost empty.
I'm using cm7.2 kang 119 with standard kernel.
Click to expand...
Click to collapse
dude i have sale some days it drops 2 a 5 times and some times not at all....
reggiexp said:
dude i have sale some days it drops 2 a 5 times and some times not at all....
Click to expand...
Click to collapse
by "sale" you meant "same"?
I have similar problems...
Mine force closes 1 out of 7 charges at a random percentage...today it was at 53%...it shows cc% but in reality the battery is drained out...I am not sure what is the problem...this showed up after I inhaled wiui 2.5.25, other than that I have minor issues with this rom...I really like it...only if I could make the radio work...
sysex said:
I have similar problems...
Mine force closes 1 out of 7 charges at a random percentage...today it was at 53%...it shows cc% but in reality the battery is drained out...I am not sure what is the problem...this showed up after I inhaled wiui 2.5.25, other than that I have minor issues with this rom...I really like it...only if I could make the radio work...
Click to expand...
Click to collapse
What kernel? Bb? Ril? Obviously your problem started when flashing wiui, have an idea what to try.....?
Sent from O2X via xda premium, beware of autocorrection
coolacrille said:
What kernel? Bb? Ril? Obviously your problem started when flashing wiui, have an idea what to try.....?
Sent from O2X via xda premium, beware of autocorrection
Click to expand...
Click to collapse
Bb=725 ril=0218(10b) the kernel is the latest OC kernel from temasek (any suggestions there, is there a better one for wiui/miui roms?).
I'll do a battery wipe after a full charge and see what happens next...
Please don't post questions in the General section
Moving to Q&A

Battery drain when rebooting phone

I have 2 batteries and one broken phone, I use the broken phone to charge the extra battery. If I reboot my phone with a battery with a perfectly good charge when it reboots it shows the battery is dying? If I put the battery in the other phone and charge the status says the battery has a charge, not sure what is wrong?
poprocksncoke said:
I have 2 batteries and one broken phone, I use the broken phone to charge the extra battery. If I reboot my phone with a battery with a perfectly good charge when it reboots it shows the battery is dying? If I put the battery in the other phone and charge the status says the battery has a charge, not sure what is wrong?
Click to expand...
Click to collapse
My guess: Your broken phone doesn't actually charge your battery or at least, not fully. It might think it's fully charged at a very low %.
It could also just be the os not reading the charge correctly. I've had it happen on numerous occasions where I'll reboot my phone and the charge drops by 20-30% after reboot. But if I continue to use it without charging or rebooting the percentage will eventually increase or at the very least stay at one level for an extended time.
Sent from my SGH-I897 using xda app-developers app
BWolf56 said:
My guess: Your broken phone doesn't actually charge your battery or at least, not fully. It might think it's fully charged at a very low %.
Click to expand...
Click to collapse
Well when I take it out of the broken phone and put it in the good one, the good one says its fully charged too. The only reason the charging phone is broken is cause the IMEI is toast.
m1batt1 said:
It could also just be the os not reading the charge correctly. I've had it happen on numerous occasions where I'll reboot my phone and the charge drops by 20-30% after reboot. But if I continue to use it without charging or rebooting the percentage will eventually increase or at the very least stay at one level for an extended time.
Sent from my SGH-I897 using xda app-developers app
Click to expand...
Click to collapse
It doesnt increase, just dies......... tried charging the battery to 100% turned off then ran battery optimization app, used the phone for a while and rebooted it at about 60% and after the phone rebooted it said the battery was at 2%
poprocksncoke said:
Well when I take it out of the broken phone and put it in the good one, the good one says its fully charged too. The only reason the charging phone is broken is cause the IMEI is toast.
It doesnt increase, just dies......... tried charging the battery to 100% turned off then ran battery optimization app, used the phone for a while and rebooted it at about 60% and after the phone rebooted it said the battery was at 2%
Click to expand...
Click to collapse
You should probably stop rebooting, let it die and fully charge it. Might need to recalibrate your battery stats too.
As for your IMEI being toast, you can flash stock KK4 to fix it.
BWolf56 said:
You should probably stop rebooting, let it die and fully charge it. Might need to recalibrate your battery stats too.
As for your IMEI being toast, you can flash stock KK4 to fix it.
Click to expand...
Click to collapse
Thats what I did was let it die and fully charge and used the battery recalibration app to change the stats. then rebooted later and lost all my battery?
Have tried flashing stock KK4 with no luck on it, now its just an expensive charger
poprocksncoke said:
Thats what I did was let it die and fully charge and used the battery recalibration app to change the stats. then rebooted later and lost all my battery?
Have tried flashing stock KK4 with no luck on it, now its just an expensive charger
Click to expand...
Click to collapse
Ok.. maybe we've been missled this entire time. What's the highest battery consumption in settings->battery?
Also, you could get betterbatterystats app to help trigger what's draining your battery.
BWolf56 said:
Ok.. maybe we've been missled this entire time. What's the highest battery consumption in settings->battery?
Also, you could get betterbatterystats app to help trigger what's draining your battery.
Click to expand...
Click to collapse
I will dl betterbatterystats tonight and see what comes up. I dont know what you mean by being missled tho?
poprocksncoke said:
I will dl betterbatterystats tonight and see what comes up. I dont know what you mean by being missled tho?
Click to expand...
Click to collapse
Well what I'm starting to think is that the way you charge your battery has nothing to do with it. The OP missled me to think that it was coming from your broken phone. It might come from your phone (or app/setting on your phone).
Imo, backup your apps and such (after finding out what's draining your battery), flash back to stock and start from there to get back to your ROM.
How old are the batteries?
Do they both report the same percentage immediately after boot and after comparable use for a similar amount of time?
They are only good for 500 to 1000 cycles. A dying battery will appear fully charged when on the charger but quickly drop to a lower voltage when used.
Sent from my SGH-I897
BWolf56 said:
Well what I'm starting to think is that the way you charge your battery has nothing to do with it. The OP missled me to think that it was coming from your broken phone. It might come from your phone (or app/setting on your phone).
Imo, backup your apps and such (after finding out what's draining your battery), flash back to stock and start from there to get back to your ROM.
Click to expand...
Click to collapse
Looks like the major drain on my battery is MediaScannerService and AudioOut_2?
poprocksncoke said:
Looks like the major drain on my battery is MediaScannerService and AudioOut_2?
Click to expand...
Click to collapse
Eh yeah, I would highly suggest backing up, going back to stock and reflashing your way up.
MediaScannerService is probably cause your SD card is a mess, a factory reset usually helps for that. AudioOut_2 is weird though, do you have clicks sounds on?
BWolf56 said:
Eh yeah, I would highly suggest backing up, going back to stock and reflashing your way up.
MediaScannerService is probably cause your SD card is a mess, a factory reset usually helps for that. AudioOut_2 is weird though, do you have clicks sounds on?
Click to expand...
Click to collapse
I do have clicks sounds on.
poprocksncoke said:
I do have clicks sounds on.
Click to expand...
Click to collapse
Run a full battery cycle without it on. I'm pretty sure I saw this issue before.
For the media, it can be a few things but cleaning your SD card can help a lot.
BWolf56 said:
Eh yeah, I would highly suggest backing up, going back to stock and reflashing your way up.
MediaScannerService is probably cause your SD card is a mess, a factory reset usually helps for that. AudioOut_2 is weird though, do you have clicks sounds on?
Click to expand...
Click to collapse
I did a factory data reset from my phone, still on Slim ROM and phone cant access external SD card now
poprocksncoke said:
I did a factory data reset from my phone, still on Slim ROM and phone cant access external SD card now
Click to expand...
Click to collapse
What's the error? You external might've been the problem all along. I would suggest to copy the files that are on it to your pc and format it, see if it works.
Wipe battery stats in clockwork mod recovery and check. I hope your issue might resolve by wiping battery stats..
BWolf56 said:
What's the error? You external might've been the problem all along. I would suggest to copy the files that are on it to your pc and format it, see if it works.
Click to expand...
Click to collapse
no error, just doesnt show up. connect to pc and it doesnt show up there either?
poprocksncoke said:
no error, just doesnt show up. connect to pc and it doesnt show up there either?
Click to expand...
Click to collapse
Connect it directly to your pc (not through the phone) and see if that works. I'm pretty sure your external needs reformat.
BWolf56 said:
Connect it directly to your pc (not through the phone) and see if that works. I'm pretty sure your external needs reformat.
Click to expand...
Click to collapse
I dont have anything to connect it to my pc with. anyway to reformat it through the phone?

Why does this happen?! Battery annoyance.

Just when I think I've got it all setup nicely...
Latest AOSIP rom with Hellscore kernel, stock settings greenify, full discharge and recharge, all seemed so good....
And then boom. Go to reboot to recovery and I get the little empty battery icon upon reboot - but I was at around 40%?!
I use the battery calibration app, for what it's worth knowing the debate about the battery stats file. I've done the bootloader logs 'trick' and still I get a random occurrence like this?!
Anyone else been plagued with this randomly happening to them?
There are so many reasons it can happen. on thing id recommend is install ampere form play. Using this you should be able to monitor the voltage of the battery and at least know that it is operating within the correct range. if your 0% voltage is too high, it could rule some stuff out.
rootSU said:
There are so many reasons it can happen. on thing id recommend is install ampere form play. Using this you should be able to monitor the voltage of the battery and at least know that it is operating within the correct range. if your 0% voltage is too high, it could rule some stuff out.
Click to expand...
Click to collapse
Many thanks for the suggestion, gonna give that a try now!
cd993 said:
Many thanks for the suggestion, gonna give that a try now!
Click to expand...
Click to collapse
Cool. Just periodically check the app and jot down the percentage and voltage. keep doing that until its ready to shut down. preferably a reading every 10-15% if you can but really important is to try and capture readings just before and after any drop off you may see.
rootSU said:
Cool. Just periodically check the app and jot down the percentage and voltage. keep doing that until its ready to shut down. preferably a reading every 10-15% if you can but really important is to try and capture readings just before and after any drop off you may see.
Click to expand...
Click to collapse
Perfect thanks for the advice, I've got it installed and now juts doing a full charge.
Following that drop out, the device then reported 7% battery so I let that go flat and now fully recharging.
If it's the case that there is something going on here, how can the issue be corrected? Does Ampere help configure reported VS actual readings, or does it purely show what's being drained?
cd993 said:
Perfect thanks for the advice, I've got it installed and now juts doing a full charge.
Following that drop out, the device then reported 7% battery so I let that go flat and now fully recharging.
If it's the case that there is something going on here, how can the issue be corrected? Does Ampere help configure reported VS actual readings, or does it purely show what's being drained?
Click to expand...
Click to collapse
Its worth getting a voltage reading now too then, to see if it is as low as expected. As for solution, we need a root cause first.
rootSU said:
Its worth getting a voltage reading now too then, to see if it is as low as expected. As for solution, we need a root cause first.
Click to expand...
Click to collapse
Ok here is my first screen. I'd browsed Facebook (web version) and watched a video or 2, battery dropped to 97% soon after.
Yep. Just keep going. Every 10% is fine. No more than that. Actual battery charge is voltage so we just want to see if there are any conflicting data sets later on
rootSU said:
Yep. Just keep going. Every 10% is fine. No more than that. Actual battery charge is voltage so we just want to see if there are any conflicting data sets later on
Click to expand...
Click to collapse
Thank you, I'll keep you posted.
danarama said:
Yep. Just keep going. Every 10% is fine. No more than that. Actual battery charge is voltage so we just want to see if there are any conflicting data sets later on
Click to expand...
Click to collapse
It just did it again!!?
I had even doing the Ampere monitoring but didn't go all the way down. But today I just experienced the random drop out again. Strangely when I booted back up, it was as if the cache had been wiped as the Android Optimising app screen came on.
This was from the other day though, if this helps?
The other day did it seem to deplete normally? I'm around 20%/right now and see similar voltage to you.
Sometimes my phone used to crash and when it booted up I had this graph / drainage issue. It's as if it goes into some manic sleep that kills everything. What you've got here seems similar. I don't think there's an issue with the battery cycle itself.
I'd be tempted to do a factory reset and start clean to be honest.
Is the back of your N6 lifting away from the frame? I had this issue too and ended up doing a RMA because the battery was bulging.
danarama said:
The other day did it seem to deplete normally? I'm around 20%/right now and see similar voltage to you.
Sometimes my phone used to crash and when it booted up I had this graph / drainage issue. It's as if it goes into some manic sleep that kills everything. What you've got here seems similar. I don't think there's an issue with the battery cycle itself.
I'd be tempted to do a factory reset and start clean to be honest.
Click to expand...
Click to collapse
Weird and annoying isn't it!
I've recently flashed this new rom and so has been a fresh start so I'm kind of at a loss as to what to try next.
drkboze said:
Is the back of your N6 lifting away from the frame? I had this issue too and ended up doing a RMA because the battery was bulging.
Click to expand...
Click to collapse
Just took off my case and checked and all seems normal, back doesn't appear to be coming away and seems to be ok.
It's times like this I miss my good old Note 3, never had a battery life like it for its flat lining ability!! (see attached)
If it were the battery capacity due to bloating, I would expect to see the Voltage value to be wrong
Go back to stock and run it with no restored apps / data. If it still happens RMA
cd993 said:
Just when I think I've got it all setup nicely...
Latest AOSIP rom with Hellscore kernel, stock settings greenify, full discharge and recharge, all seemed so good....
And then boom. Go to reboot to recovery and I get the little empty battery icon upon reboot - but I was at around 40%?!
I use the battery calibration app, for what it's worth knowing the debate about the battery stats file. I've done the bootloader logs 'trick' and still I get a random occurrence like this?!
Anyone else been plagued with this randomly happening to them?
Click to expand...
Click to collapse
Your battery calibration is messed up. It happens.
DO NOT waste your time with "battery calibration app" -- there is NO software you can install and run from Android that will have ANY impact AT ALL on the battery calibration. All those "battery calibration" programs do, is delete the battery stats file, and all the battery stats file does, is store a log of what programs are responsible for how much resource utilization -- nothing at all to do with calibration.
Battery calibration reset is done through the BOOTLOADER.
Reboot your phone to bootloader. Scroll to "bootloader logs". Press and hold power button until the phone shuts down.
And that is all there is to it.
doitright said:
Your battery calibration is messed up. It happens.
DO NOT waste your time with "battery calibration app" -- there is NO software you can install and run from Android that will have ANY impact AT ALL on the battery calibration. All those "battery calibration" programs do, is delete the battery stats file, and all the battery stats file does, is store a log of what programs are responsible for how much resource utilization -- nothing at all to do with calibration.
Battery calibration reset is done through the BOOTLOADER.
Reboot your phone to bootloader. Scroll to "bootloader logs". Press and hold power button until the phone shuts down.
And that is all there is to it.
Click to expand...
Click to collapse
Thanks for the reply.
Unfortunately, I have tried this many times and so there must be more to it than this. On my latest rom, I had wiped phone and clean flashed whilst phone was connected and at 100%. Therefore a new clean install whilst phone was at 100%. I cleaned that stats (for what it was worth) and also did the bootloader logs trick. I would have thought that would have solved the issue, but as reported it still happened.
cd993 said:
Thanks for the reply.
Unfortunately, I have tried this many times and so there must be more to it than this. On my latest rom, I had wiped phone and clean flashed whilst phone was connected and at 100%. Therefore a new clean install whilst phone was at 100%. I cleaned that stats (for what it was worth) and also did the bootloader logs trick. I would have thought that would have solved the issue, but as reported it still happened.
Click to expand...
Click to collapse
Your calibration is fine because the % matches up to the voltage, which is all calibration matches.
danarama said:
Your calibration is fine because the % matches up to the voltage, which is all calibration matches.
Click to expand...
Click to collapse
Thanks yeah, I thought as much.
The question remains then..... What in earth causes these drop outs!
cd993 said:
Thanks yeah, I thought as much.
The question remains then..... What in earth causes these drop outs!
Click to expand...
Click to collapse
It's hard to say. It seems like the system may be crashing or something at that time and causing an inordinate drain. Thats what mine used to do sometimes.

Z1 Battery Problems

Hi, I have a Sony Xperia Z1 running cm12 nightlies. I've been getting this problem where the phone shows 40% battery but turns off at this and on restart shows 1%
This was okay, however, recently it has started turning off at 70%
I don't really want to replace the battery, as my warrenty is voided (isn't it) and it's not the easiest thing to disassemble.
Thanks.
iamthatmattguy said:
Hi, I have a Sony Xperia Z1 running cm12 nightlies. I've been getting this problem where the phone shows 40% battery but turns off at this and on restart shows 1%
This was okay, however, recently it has started turning off at 70%
I don't really want to replace the battery, as my warrenty is voided (isn't it) and it's not the easiest thing to disassemble.
Thanks.
Click to expand...
Click to collapse
Can you try to calibrate your battery once?
100-0% and then 0-100% in one go
___
v7
XDA Assist
v7 said:
Can you try to calibrate your battery once?
100-0% and then 0-100% in one go
___
v7
XDA Assist
Click to expand...
Click to collapse
Yeah, I've already tried this, even did it for a couple of cycles and it didn't seem to have much of an effect.
iamthatmattguy said:
Yeah, I've already tried this, even did it for a couple of cycles and it didn't seem to have much of an effect.
Click to expand...
Click to collapse
This happens only on the current ROM?Did you try flashing stock?
___
v7
XDA Assist
v7 said:
This happens only on the current ROM?Did you try flashing stock?
___
v7
XDA Assist
Click to expand...
Click to collapse
Bit of a dumb question, but where could I get stock from?
iamthatmattguy said:
Bit of a dumb question, but where could I get stock from?
Click to expand...
Click to collapse
Use XperiFirm to download stock firmware for your device.You can use Flashtool to flash the stock fw.
___
v7
XDA Assist
v7 said:
Use XperiFirm to download stock firmware for your device.You can use Flashtool to flash the stock fw.
___
v7
XDA Assist
Click to expand...
Click to collapse
Thanks, could I not just simply flash it with the recovery?
iamthatmattguy said:
Thanks, could I not just simply flash it with the recovery?
Click to expand...
Click to collapse
Don't waste your time on flashing and calibrating. You have classic symptoms of a dying battery. Soon, the phone would shut down at 90%, because your battery capacity is 6-7 times less. Try to run a youtube video and your phone will die in less than 20 min.
If you read this and general threads, you would have found similar complains. You need to replace your battery.
optimumpro said:
Don't waste your time on flashing and calibrating. You have classic symptoms of a dying battery. Soon, the phone would shut down at 90%, because your battery capacity is 6-7 times less. Try to run a youtube video and your phone will die in less than 20 min.
If you read this and general threads, you would have found similar complains. You need to replace your battery.
Click to expand...
Click to collapse
Ugh yeah that's what a quick Google search told me as well
How easy would you say taking apart and replacing the battery in a Z1 is?
Edit: If it's the battery why does it suddenly cut off instead of quickly decreasing.
iamthatmattguy said:
Ugh yeah that's what a quick Google search told me as well
How easy would you say taking apart and replacing the battery in a Z1 is?
Edit: If it's the battery why does it suddenly cut off instead of quickly decreasing.
Click to expand...
Click to collapse
Because battery is measured by voltage and when voltage goes down to a certain level, kernel shuts down the phone. If your normal battery has 20 cells, yours has only 3 left and voltage goes down rapidly under load, because the other cells are dead. Even if the battery has 1 cell left, when it is charged, the phone will show 100%, while there is a real capacity to hold just a few percents.
Watch youtube videos on how to change the battery. You may or may not break the back pannel (I did). So, get a replacement back glass too.
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optimumpro said:
Because battery is measured by voltage and when voltage goes down to a certain level, kernel shuts down the phone. If your normal battery has 20 cells, yours has only 3 left and voltage goes down rapidly under load, because the other cells are dead. Even if the battery has 1 cell left, when it is charged, the phone will show 100%, while there is a real capacity to hold just a few percents.
Watch youtube videos on how to change the battery. You may or may not break the back pannel (I did). So, get a replacement back glass too.
Click to expand...
Click to collapse
I had same issue with my z1 since last 4-5 weeks. Thinking that battery is dying I changed it yesterday with a brand new sony battery. Now even after changing my battery, the problem persists. Phone switches off suddenly with 45-60% charge left.
I am on PAC Roam running 5.1.1 . Prior to this I have tried MX rom, Ressurection remix and few other ROMs running 5.1.1 however the same problem wa there as well.
I think it is not only to do with battery but with something else. Please help
roushan84 said:
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I had same issue with my z1 since last 4-5 weeks. Thinking that battery is dying I changed it yesterday with a brand new sony battery. Now even after changing my battery, the problem persists. Phone switches off suddenly with 45-60% charge left.
I am on PAC Roam running 5.1.1 . Prior to this I have tried MX rom, Ressurection remix and few other ROMs running 5.1.1 however the same problem wa there as well.
I think it is not only to do with battery but with something else. Please help
Click to expand...
Click to collapse
You probably have a random reboot issue (thanks to some recent dumb kernel/rom improvements), as opposed to switch off. Look for what your battery shows after reboot: if it is 1%, it is battery related and you got a bad replacement. If it is close to the value before reboot, it is your rom/kernel. There is no third option. And by the way, battery drain has nothing to do with bad battery. Most drains are caused by Gapps and social apps. Also, if you install a new rom or battery, you have to give it a few charging cycles.
optimumpro said:
You probably have a random reboot issue (thanks to some recent dumb kernel/rom improvements), as opposed to switch off. Look for what your battery shows after reboot: if it is 1%, it is battery related and you got a bad replacement. If it is close to the value before reboot, it is your rom/kernel. There is no third option. And by the way, battery drain has nothing to do with bad battery. Most drains are caused by Gapps and social apps. Also, if you install a new rom or battery, you have to give it a few charging cycles.
Click to expand...
Click to collapse
Sometimes (like just 10 mins back) my phone goes off and when I reboot it, it comeback with same battery percentage but most times it needs charging to reboot and when it comes back alive, battery stat is 1%
Same was the case with my last battery. Now I am even more confused as to what is the exact cause Should I lock my bootloader and flash Stock 5.1.1. ftf and see if problem still persists?
roushan84 said:
Sometimes (like just 10 mins back) my phone goes off and when I reboot it, it comeback with same battery percentage but most times it needs charging to reboot and when it comes back alive, battery stat is 1%
Same was the case with my last battery. Now I am even more confused as to what is the exact cause Should I lock my bootloader and flash Stock 5.1.1. ftf and see if problem still persists?
Click to expand...
Click to collapse
If your phone boots on its own after switching off, then it is not the battery issue. CM roms are becoming worse and worse for several reasons: too many devices; bad sources from google and incompetent software guys (both at CM and Google). I don't like apple and their products, but when one entity controls hardware and software, you will have fewer bugs. Google pays their engineers for introducing more and more ad related things into Android, as opposed to making Android a full blown operating system.
Go to stock and see how long your new battery lasts: if it dies after 20 min of youtube, you have a bad battery. Period. If it is not, then find a custom rom that does not have random reboots, which unfortunately there is only 2 or 3...
For any measurements to be valid, you need to give your battery at least one cycle on a current rom (from 100% to 15-16%).
P.S. You may have both issues. If you paid $10-12 for a new battery, then most likely, you have a Chinese fake that only looks like real Sony...
optimumpro said:
If your phone boots on its own after switching off, then it is not the battery issue. CM roms are becoming worse and worse for several reasons: too many devices; bad sources from google and incompetent software guys (both at CM and Google). I don't like apple and their products, but when one entity controls hardware and software, you will have fewer bugs. Google pays their engineers for introducing more and more ad related things into Android, as opposed to making Android a full blown operating system.
Go to stock and see how long your new battery lasts: if it dies after 20 min of youtube, you have a bad battery. Period. If it is not, then find a custom rom that does not have random reboots, which unfortunately there is only 2 or 3...
For any measurements to be valid, you need to give your battery at least one cycle on a current rom (from 100% to 15-16%).
P.S. You may have both issues. If you paid $10-12 for a new battery, then most likely, you have a Chinese fake that only looks like real Sony...
Click to expand...
Click to collapse
I bought it in Rs 1500 (approx $30) from authorized sony service centre which also gave me a warranty of 6 months. Worst case I can return it to them but just want to be sure before I try and do that.
My phone switched on once after going off and it was with same battery stat (last instance). there have been couple of times when I could turn my phone on but it showed only 1 or 2% battery.
roushan84 said:
I bought it in Rs 1500 (approx $30) from authorized sony service centre which also gave me a warranty of 6 months. Worst case I can return it to them but just want to be sure before I try and do that.
My phone switched on once after going off and it was with same battery stat (last instance). there have been couple of times when I could turn my phone on but it showed only 1 or 2% battery.
Click to expand...
Click to collapse
Just do what I recommended in the previous post: go to stock, fully charge and see how long the battery lasts on youtube: in 20 minutes, you should lose no more than 13-15% on a new battery, as opposed to go to zero. Some Z1 batteries have a problem: Mine died about 9 months ago. My old Xperia ION (which is a 2012 phone) battery is still going strong (lasts for at least 2 days on Jeallybean).
roushan84 said:
Sometimes (like just 10 mins back) my phone goes off and when I reboot it, it comeback with same battery percentage but most times it needs charging to reboot and when it comes back alive, battery stat is 1%
Same was the case with my last battery. Now I am even more confused as to what is the exact cause Should I lock my bootloader and flash Stock 5.1.1. ftf and see if problem still persists?
Click to expand...
Click to collapse
I just recharge it to 100% and ran YouTube for 35 mins and from 100 it went to 93%..!!
Only 7 battery loss for 30mins YouTube on 240p and full volume
I hope the issue was there for first few cycles. In case if still persists, will try and flash FTF tomorrow and see what happens:fingers-crossed:
roushan84 said:
I just recharge it to 100% and ran YouTube for 35 mins and from 100 it went to 93%..!!
Only 7 battery loss for 30mins YouTube on 240p and full volume
I hope the issue was there for first few cycles. In case if still persists, will try and flash FTF tomorrow and see what happens:fingers-crossed:
Click to expand...
Click to collapse
That means your battery is fine and you have random reboots related to the rom you use. Here are custom roms that have no reboots: slimrom; tesla, DU and Jaguar. The last 3 are mine. LOL. I am not promoting my roms, don't need to (just look at the number of downloads, especially Jaguar)... In case of Jaguar, you have to flash November 1 kernel on top of the latest release. It is in November that they introduced changes that cause reboots...
Haha..
I know you don't have to plug-in your roms. I guess I will hold it for a day to see how my phone behaves. Major battery drain is when I play Clash of Clans. I am on CoC to check endurance. If not, them will move to Jaguar with Nov kernel on top.
I have realized that it's somewhere in November since there random reboots and battery issues started
optimumpro said:
That means your battery is fine and you have random reboots related to the rom you use. Here are custom roms that have no reboots: slimrom; tesla, DU and Jaguar. The last 3 are mine. LOL. I am not promoting my roms, don't need to (just look at the number of downloads, especially Jaguar)... In case of Jaguar, you have to flash November 1 kernel on top of the latest release. It is in November that they introduced changes that cause reboots...
Click to expand...
Click to collapse
I flashed latest Jaguar with Nov 1 kernel and c6902 modem (Version 4). Have also flashed 5.1 gapps (Micro version) and restored all my apps. have created Zip from titanium backup.
Phone still went off from around 75% battery. when restarted again, it came back with 45% battery, just to die within 30 seconds :crying:

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