Sony Xperia Z1 Battery - Xperia Z1 Q&A, Help & Troubleshooting

hello everyone,
I use a Sony Xperia Z1 model c6902 phone. It is around 1 years old. No modifications have been done and it was on stock. When the battery was at 60 - 65% I get a notification saying battery low 1% powering off and shuts down. Then when the charger is plugged In it starts charging from 1% And after reaching 10% jumps suddenly back to 60%!!
Here are the steps I tried to resolve it:
1. It looked like a software bug so reset the phone to factory. No go
2. Unlocked bootloader, rooted, flashed 2-3 ROMS, no go
3. Flashed a stock . Ftf file. No go.
4. At the moment trying this app called Battery repair which I know for sure isn't going to help.
What should I do?
Edit: after battery recalibration and cell map (pretty sure all it does is reset batt stats) charge now dropped from 90% to 1%

Don't think there's a such thing as battery recalibration.
Probably just need to replace the battery

tomascus said:
Don't think there's a such thing as battery recalibration.
Probably just need to replace the battery
Click to expand...
Click to collapse
But the phone's battery cannot be removed

yassirnc said:
But the phone's battery cannot be removed
Click to expand...
Click to collapse
You can do or take it to a repair center
how to open the device --> https://youtu.be/Io9jHfs6z94

Masterblop said:
You can do or take it to a repair center
how to open the device --> https://youtu.be/Io9jHfs6z94
Click to expand...
Click to collapse
But it must be obtained from another phone, which does not make
or there is a new battery

buy a new battery for z1 and replace it, its easy to open the back cover

yassirnc said:
hello everyone,
I use a Sony Xperia Z1 model c6902 phone. It is around 1 years old. No modifications have been done and it was on stock. When the battery was at 60 - 65% I get a notification saying battery low 1% powering off and shuts down. Then when the charger is plugged In it starts charging from 1% And after reaching 10% jumps suddenly back to 60%!!
Here are the steps I tried to resolve it:
1. It looked like a software bug so reset the phone to factory. No go
2. Unlocked bootloader, rooted, flashed 2-3 ROMS, no go
3. Flashed a stock . Ftf file. No go.
4. At the moment trying this app called Battery repair which I know for sure isn't going to help.
What should I do?
Edit: after battery recalibration and cell map (pretty sure all it does is reset batt stats) charge now dropped from 90% to 1%
Click to expand...
Click to collapse
Heres a battery I found for very cheap: http://www.ebay.co.uk/itm/Genuine-O...174495?hash=item4af9d6a85f:g:jI4AAOSwe7BWz5ec
Just follow the instructions on how to open it and you'll be good to go

Solution
for me also the same prob
just try to replace the battery even if it doesnt work then there ill be a ic issue
for me ic gone in mother board and now its fixed

Yes. You can replace the built in battery. I had this problem before. I send my phone to a service center in my place for a battery replacement. The service costs more than a normal removable battery (of course). But now at least I can use it for another few years.

Related

Xperia T Battery Problems - Like Never Before

First things first, this is my first time posting on XDA Developers and yes I have searched the forums for a similar question/answer and only found one but my I had a small additional problem as well.
Problem 1) My battery indicator is always wrong, one time it says it's 50% and then I restart my phone and then it says 15%, then I play games until it's 12% and then restart again and then the phone now says 20%.
Problem 2) When my battery indicator is incorrect, when I turn off my phone, the xperia T will just restart and then I have to turn it off again.
What I've done;
- I used sony's repair software online (Sony PC Companion)
- Used ICS format option
- Exchanged Xperia T for another one at Carphone Warehouse 2-3 days ago (Original purchase was last week)
- Drained the battery from 100% to 0% and then charged it again.
NOTE: My Xperia T was bought from UK (Carphone Warehouse) and I haven't flashed it onto another ROM nor have I rooted the phone and the phone is unlocked too.
NOTE 2: I had exchange the phone once and still same problems occurred, dunno if I'm "Bad Luck Brian" this week or all certain xperia T's behave this way.
cmr333 said:
First things first, this is my first time posting on XDA Developers and yes I have searched the forums for a similar question/answer and only found one but my I had a small additional problem as well.
Problem 1) My battery indicator is always wrong, one time it says it's 50% and then I restart my phone and then it says 15%, then I play games until it's 12% and then restart again and then the phone now says 20%.
Problem 2) When my battery indicator is incorrect, when I turn off my phone, the xperia T will just restart and then I have to turn it off again.
What I've done;
- I used sony's repair software online (Sony PC Companion)
- Used ICS format option
- Exchanged Xperia T for another one at Carphone Warehouse 2-3 days ago (Original purchase was last week)
- Drained the battery from 100% to 0% and then charged it again.
NOTE: My Xperia T was bought from UK (Carphone Warehouse) and I haven't flashed it onto another ROM nor have I rooted the phone and the phone is unlocked too.
NOTE 2: I had exchange the phone once and still same problems occurred, dunno if I'm "Bad Luck Brian" this week or all certain xperia T's behave this way.
Click to expand...
Click to collapse
I have come across the issue of the phone restarting on power off. Quite strange but yet couldnt isolate as to why it does it.
Just gt my phone exchanged due to a suspected bad microphone, and the new one too restarted on a power off.
The previous one seemed quite good with battery life and the new one is yet on the 1st cycle of drain.
Yes, occasionaly my phone does a restart instead of a power off, but i find it quitw usefull because normally I am rebooting to get into recovery and I hate not having a reboot option...
Well done sony
EDIT
The other thing that bigs me is the random reboots...does anyone else get this on stock kernel. I am advanced v3 stock kernel.
gregbradley said:
Yes, occasionaly my phone does a restart instead of a power off, but i find it quitw usefull because normally I am rebooting to get into recovery and I hate not having a reboot option...
Well done sony
EDIT
The other thing that bigs me is the random reboots...does anyone else get this on stock kernel. I am advanced v3 stock kernel.
Click to expand...
Click to collapse
Good to hear the restart is a common thing
I've had a random reboot once, while running sat nav sw (sygic).
Today I exchanged my phone to Galaxy Note 2, couldn't be happier.
Also, I've contacted Sony before the exchange (and after this thread was posted) and they said that the issue is known by Sony and it's unknown if it's a software or hardware problem for now, wish you guys good luck and hopefully it's a software bug
gregbradley said:
Yes, occasionaly my phone does a restart instead of a power off, but i find it quitw usefull because normally I am rebooting to get into recovery and I hate not having a reboot option...
Well done sony
EDIT
The other thing that bigs me is the random reboots...does anyone else get this on stock kernel. I am advanced v3 stock kernel.
Click to expand...
Click to collapse
In the past month on which I own the device I maybe had one or two random reboots. All stock only rooted. So my guess is its in the advance kernel. Since most people who have it have a unlocked bootloader
Did I help? Then please don't forget to press the thanks button.
Is your question solved? Then mark your question solved in your title.
Sent from my Xperia T using XDA Premium.
I haven't experienced any restarts but my battery level indicator is a bit hit and miss.
I can run my batt down to, say, 5% then turn the screen off and leave it for a while and it'll report something like 15% when I turn the screen back on several minutes later. It will also stay working for AGES when at 1% - my best effort was just under an hour of video with 1% being reported!
I'm sure it'll all get fixed in an update. The T is much more stable than my G-Note was just after release, it took months for Samsung to sort things out on it!
Not random reboots nor battery level issues. Currently in fw 195.
The first 2 weeks of my tx, it could stay at 100% for several hours even over night.
After that, It could stay at 1% for up to 3 hours. Lol
The indicator is not Accurate, but hey, I got pretty good battery life out of TX, around 30hrs per charge.
As for the battery indicator: the percentage is calculated based on the current the battery puts out. The problem with current batteries is, if you pull a lot of energy in a short amount of time (boot/reboot, play game, other hard phone use) the current temporarily drops and thus a wrong percentage is calculated. After a while, the current recovers and the correct value will be shown. Comparable to the fuel gauge showing less/more fuel when parked at a steep hill.
This explains how the meter can fluctuate. What I cant answer is if your phone acts inside the "tolerance margin" or if its way off. My Galaxy Note recently went from 30% to 5% in a couple minutes (I used the hell out of it...) and after I stopped using it, it went back to 15% overthe following 30 mimutes.
As for the other issue, I obviously cant help as I dont possess a X T.
Gesendet von meinem ASUS Transformer Pad TF300TG mit Tapatalk 2
So far battery life seems insane with the extended standby mode... Haven't run a full day yet but it's barely dropping at all for the last couple hours.
Sony T restart problems
Hey guys,
Just looking at sony website, i searched xperia t and in the tutorial it said that holding the power off button turns the phone off while holding the power off button and volume up button at the same time makes it restart. All you guys saying you've got problems with the device re-booting. ITS NOT THE DEVICE ITS YOU PRESSING THE VOLUME UP BUTTON:silly: . A little research never hurts every once in a while!!!!!!!!!!
Noticed the battery percentage peculiarities too... Can't we hide the battery percentage altogether? It makes me anxious.
Had only 1 reboot on the other hand, while going into airplane mode. Phone is pretty stable (build 223).
I was having the same problem + some. Got a replacement TL and it behaves normally Read this post, http://forum.xda-developers.com/showthread.php?t=2355862 if it sounds familiar get a replacement ASAP
gpgon said:
I was having the same problem + some. Got a replacement TL and it behaves normally Read this post, http://forum.xda-developers.com/showthread.php?t=2355862 if it sounds familiar get a replacement ASAP
Click to expand...
Click to collapse
That's 3 VERY old threads you have dug up, can I ask the reason why you are doing so?

[Q] Restart and red LED

Hi guys,
I have a problem with my Xperia ZR C5502 (3G) some time ago began to restart, and make bad level of the battery, said to be 1% and then I plug it in less than 5 minutes and says 100 % the same is discharged, even when I leave it connected for several hours does not reload, I thought it was the battery and buy another but the problem is, I thought it was the rom, (4.4 stock) so install many (all stock) but the problem persists, try and calibrate the battery but nothing, any idea or solution (cell lost the warranty by unlocking the bootloader) is less than 4 months, anyone have any ideas?
jonathanarvaez said:
Hi guys,
I have a problem with my Xperia ZR C5502 (3G) some time ago began to restart, and make bad level of the battery, said to be 1% and then I plug it in less than 5 minutes and says 100 % the same is discharged, even when I leave it connected for several hours does not reload, I thought it was the battery and buy another but the problem is, I thought it was the rom, (4.4 stock) so install many (all stock) but the problem persists, try and calibrate the battery but nothing, any idea or solution (cell lost the warranty by unlocking the bootloader) is less than 4 months, anyone have any ideas?
Click to expand...
Click to collapse
relock the bootloader if you have saved DRM keys n backed up TA partition. then you can take it to service center.
may b battery is dead. u need to replace it.
sourabhp said:
relock the bootloader if you have saved DRM keys n backed up TA partition. then you can take it to service center.
may b battery is dead. u need to replace it.
Click to expand...
Click to collapse
thanks for your answer, but I have no copy of it or dmr, replace the battery with a new one and the problem continues, any other ideas?
jonathanarvaez said:
thanks for your answer, but I have no copy of it or dmr, replace the battery with a new one and the problem continues, any other ideas?
Click to expand...
Click to collapse
u have tried everything to make it work. only thing left is to try out new battery. but cant be sure it will work
sourabhp said:
u have tried everything to make it work. only thing left is to try out new battery. but cant be sure it will work
Click to expand...
Click to collapse
Thanks, but with the new battery still the problem, I hope they can do something else
jonathanarvaez said:
Thanks, but with the new battery still the problem, I hope they can do something else
Click to expand...
Click to collapse
can u get handset replaced?
sourabhp said:
can u get handset replaced?
Click to expand...
Click to collapse
No, I can not, I want to try all possible solutions before buying a new one, I repeat, the problem seems to be that it does not recognize the level d ela battery good, sometimes was 83% and off, turning on says this 1 % and put it to charge and two munutos already at 100% or in other high value, and change the battery and the problem continues. thanks

[Q] Hardware Battery Issue?

Ok, I have had my phone two plus months now and love it. However, as of late, my phone will reach around 57% battery life and suddenly begin to shut down and then show 0% battery and I have to plug it in for a few minutes (using Turbo Charger) to get it working.
This has occurred on a few ROM's and different kernels it seems. I can't pinpoint the exact ROM or kernel if it is the case.
I have flashed the factory image a few times but havent kept it long enough on stock to see if it occurs on the stock image.
Should I be worried? Could my battery be going or be defective?
I could try just running stock with no kernel changes, etc.
What do you think? Very strange.
Could be a defective battery
Sent from my Z3
Ulver said:
Could be a defective battery
Sent from my Z3
Click to expand...
Click to collapse
Yes, since I am still under warranty and not wanting to take any chances, I contacted MOTO and they are sending out a replacement.
Any update I'm having a similar issue phone just shuts off then shows the empty battery symbol even when the battery had about 30 or so percent

Battery 15% to Phone dead in 2 sec...

hi.
i get only 3 hours of SOT max and the real problem is that when the battery goes down to 15% it all of a sudden gives me prompt that battery is low and then in next 3 seconds it says battery is 1% and then mobile turns off and it does not even turn on again!!!
i even try to on it but it does not that means all the charge is just gone away...
can anyone help me whats wrong? i have Dr. Ketan rom L3
here i have the screenshots now.
here are 2 images i took of the problem im talking about:
http://imgur.com/c8pna2v,I3qJfy5
in first u can see its 11% and in few seconds its 5% and then phone gone dead and will not even power on
here is same charge cycle i charged phone for like 15 min and then i see SOT here u can see its only 3 hours which is pretty low for Note 4 with very light use.
http://imgur.com/v6Wv47g,QMleogS
and here following images show the battery drainage just sitting the phone, no messages, no calls, not even time checked, i didnt even touch the phone from 6:45am to 1:30pm and drainage is 6%
http://imgur.com/koYDgL4,QAxyvSA
aami.aami said:
hi.
i get only 3 hours of SOT max and the real problem is that when the battery goes down to 15% it all of a sudden gives me prompt that battery is low and then in next 3 seconds it says battery is 1% and then mobile turns off and it does not even turn on again!!!
i even try to on it but it does not that means all the charge is just gone away...
can anyone help me whats wrong? i have Dr. Ketan rom L3
here i have the screenshots now.
here are 2 images i took of the problem im talking about:
http://imgur.com/c8pna2v,I3qJfy5
in first u can see its 11% and in few seconds its 5% and then phone gone dead and will not even power on
here is same charge cycle i charged phone for like 15 min and then i see SOT here u can see its only 3 hours which is pretty low for Note 4 with very light use.
http://imgur.com/v6Wv47g,QMleogS
and here following images show the battery drainage just sitting the phone, no messages, no calls, not even time checked, i didnt even touch the phone from 6:45am to 1:30pm and drainage is 6%
http://imgur.com/koYDgL4,QAxyvSA
Click to expand...
Click to collapse
Just flash the stock firmware and kernel, and see if it solves the problem. If not then you have a dead battery on your hands.
I also have the same problem, it also seems to happen at 30 percent. I'm pretty sure we need to change our battery
Sent from my SM-N910F using Tapatalk
Toss3 said:
Just flash the stock firmware and kernel, and see if it solves the problem. If not then you have a dead battery on your hands.
Click to expand...
Click to collapse
u mean to say that i should go stock samsung firmware and remove this rom?
aami.aami said:
u mean to say that i should go stock samsung firmware and remove this rom?
Click to expand...
Click to collapse
Well its the easiest way to see if it is rom/kernel related or if something is wrong with the hardware.
Toss3 said:
Well its the easiest way to see if it is rom/kernel related or if something is wrong with the hardware.
Click to expand...
Click to collapse
ok thank you. just one more question just to be safe, should i just download the firmware from sammobile and flash via odin in download mode right?
and another fellow here advised me to calibrate my battery to check if its hardware or software. he told me to charge to 100% and delete this file data/ system / and delete BatteryStats.bin use to 0% and then charge 100%. should i do it before going stock or not?
had the same issue a few days back (f2 stock rom and kernel), battery dropped from 17% to 0 within a few seconds.
but this occured only once, the next cycle was ok, so i guess it was a calibration issue!
aami.aami said:
ok thank you. just one more question just to be safe, should i just download the firmware from sammobile and flash via odin in download mode right?
and another fellow here advised me to calibrate my battery to check if its hardware or software. he told me to charge to 100% and delete this file data/ system / and delete BatteryStats.bin use to 0% and then charge 100%. should i do it before going stock or not?
Click to expand...
Click to collapse
Easiest to try battery calibration first. If that doesn't work after a couple of cycles then just flash the stock rom from Sammobile using Odin.
TML1504 said:
had the same issue a few days back (f2 stock rom and kernel), battery dropped from 17% to 0 within a few seconds.
but this occured only once, the next cycle was ok, so i guess it was a calibration issue!
Click to expand...
Click to collapse
Toss3 said:
Easiest to try battery calibration first. If that doesn't work after a couple of cycles then just flash the stock rom from Sammobile using Odin.
Click to expand...
Click to collapse
ok thank you guys, i guess i just have a ****ty life and very very ****ty luck happens to every phone tablet i buy. FML
There are 3 possible reasons this happens - broken phone, broken battery or software problem.
I think the first one is unlikely so you need to figure out which of the last 2 is.
Make a back up of your current rom and install an official TW software. If this still doesnt fix your problem, its most likely the battery. A new genuine battery is around 20$.
PS - i think that the battery stats bin file is automatically deleted once you fully charge the battery anyway but you can still try it altough i doubt it will fix it.
Sent from my SM-N910F using XDA Free mobile app
same problem here
And here.
This is typical of a dead battery. Your best bet is to buy a new one.
Less than a year is short but not unheard of. Overheating (especially when 100% full), deep discharge, very intensive use (especially with quick charging) and manufacturing defects all can kill a battery.
I'm on CM12.1 with this problem. I've tried battery calibration and tried a new battery but its still apparent.
Will be trying a factory reset as my last resort.
This is happening to 2 phones in my household it started after the upgrade to 5.0.1 one note is Tmobile the other sprint....highly doubt we both developed battery problems RIGHT after we both ota upgraded.
Same here at ~13%.
I do always either fast charge or QI charge.
So far I've tried:
- Battery calibration
- Bought new battery
- Factory reset
Still happens!!
Maybe I'll try TW flash or modem change
Weird, I have this exact same problem as the original post. I'm running BOC5 on the 9105. It's a sporadic problem only occurring on occasion
Sent from my SM-N910F using XDA Free mobile app
KK > LP
VuBoo said:
KK > LP
Click to expand...
Click to collapse
I've been running Lollipop for ages until this problem happened. Frankly, I still prefer Lollipop with this problem.

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.
[/COLOR]
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:
[/COLOR]
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...
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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.
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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?
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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:
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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...
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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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