[Q] Battery used up suddenly - Galaxy S II Q&A, Help & Troubleshooting

hi,
I recently change from rom IC stock to JB stock (Spain). Every thing is fine except after working with phone for some time & battery used up to 25%, suddenlly the signal drops & phone shuts down. I cannot turn on the phone unless I plug in the charger where my battery is 0%. Also after flashing to JB, I wiped the data in recovery.
Phone is NOT root & battery is brand new.
Thanx

cyrus.666 said:
hi,
I recently change from rom IC stock to JB stock (Spain). Every thing is fine except after working with phone for some time & battery used up to 25%, suddenlly the signal drops & phone shuts down. I cannot turn on the phone unless I plug in the charger where my battery is 0%. Also after flashing to JB, I wiped the data in recovery.
Phone is NOT root & battery is brand new.
Thanx
Click to expand...
Click to collapse
Did you create this topic immediately after putting it on charge or did you at least wait a hour or 2?

TheATHEiST said:
Did you create this topic immediately after putting it on charge or did you at least wait a hour or 2?
Click to expand...
Click to collapse
it happen after working with phone for couple of hours as the charge reduce normally from 100% to about 25%, then i lost the signal the phone shut down & i could turn it on only with my charger because the battery was 0%
tnx

cyrus.666 said:
it happen after working with phone for couple of hours as the charge reduce normally from 100% to about 25%, then i lost the signal the phone shut down & i could turn it on only with my charger because the battery was 0%
tnx
Click to expand...
Click to collapse
Yes, I know what happened you said so in your first post, My point was have you left it charging yet, for an hour or 2 and then tried to boot?

TheATHEiST said:
Yes, I know what happened you said so in your first post, My point was have you left it charging yet, for an hour or 2 and then tried to boot?
Click to expand...
Click to collapse
Actually I had the same problem with my old battery. I was advised to change the battery; with the brand new one, I left it charge fully to 100% for 6 hours as per instruction, then turn the phone on as the aforementioned problem occurred again. Again put it on charge for couple of hours to 100% charge then reboot the phone. Right now every thing looks Ok but I am worried why it happened with the new battery. is it the rom or the phone?

Related

Phone not charging properly while off?

OK, guys, I heard that ClockworkMod Recovery 5.0.2.0 has issues with off-charging. I tested that for myself.
I flashed Revolutionary Recovery 4.0.1.4, and the phone seems to CHARGE while turned off. There's a bit of a problem, though.
A few friends suggested that I discharge the phone entirely then charge it while it's turned off, for 12 hours. I did that! LED was green when I woke up (12 hours since plugged in), so I disconnected it and turned the phone on. SURPRISE ! 64% BATTERY ! I rebooted the phone, thinking that maybe the % counter isn't showing it properly. No, it WAS showing it properly.
What is the problem?! Is it because of the recovery, again? I thought Revolutionary CWM 4.0.1.4 isn't broken like that?!
The problem is not that it doesn't charge while off. After the phone's battery depleted, I plugged it to the wall charger, then the red LED switched on, 5 seconds later it went off then it switched back on. I believe the phone charged to 100% then it was supposed to discharge to 90% then charge back up to 100%... and it didn't recharge once it went back to 90%, but continued to discharge. Otherwise I see no explanation why it was at 64% after 10 hours of charging...
Formhault said:
OK, guys, I heard that ClockworkMod Recovery 5.0.2.0 has issues with off-charging. I tested that for myself.
I flashed Revolutionary Recovery 4.0.1.4, and the phone seems to CHARGE while turned off. There's a bit of a problem, though.
A few friends suggested that I discharge the phone entirely then charge it while it's turned off, for 12 hours. I did that! LED was green when I woke up (12 hours since plugged in), so I disconnected it and turned the phone on. SURPRISE ! 64% BATTERY ! I rebooted the phone, thinking that maybe the % counter isn't showing it properly. No, it WAS showing it properly.
What is the problem?! Is it because of the recovery, again? I thought Revolutionary CWM 4.0.1.4 isn't broken like that?!
The problem is not that it doesn't charge while off. After the phone's battery depleted, I plugged it to the wall charger, then the red LED switched on, 5 seconds later it went off then it switched back on. I believe the phone charged to 100% then it was supposed to discharge to 90% then charge back up to 100%... and it didn't recharge once it went back to 90%, but continued to discharge. Otherwise I see no explanation why it was at 64% after 10 hours of charging...
Click to expand...
Click to collapse
I have left mine on the charger over night when I woke up mine was green and said 96% it's discharging to keep from spakin the battery...
Once it gets to a certain point it will charge back up...
Charge your phone till 100% green light unplug it go to recovery wipe your battery stats reboot phone and use it till it dies.
Then give it a full charge and your good to go..
reaper24 said:
I have left mine on the charger over night when I woke up mine was green and said 96% it's discharging to keep from spakin the battery...
Once it gets to a certain point it will charge back up...
Charge your phone till 100% green light unplug it go to recovery wipe your battery stats reboot phone and use it till it dies.
Then give it a full charge and your good to go..
Click to expand...
Click to collapse
Charge it tll green while it's turned off, right? Then, RIGHT AS it goes green, I go wipe that placebo file?
I'll do that, I was planning to do that anyway.
I know it's a protection so it won't damage the battery... But it's supposed to charge back up once it's discharged to 90%, not continue to go down below 70%!
Formhault said:
Charge it tll green while it's turned off, right? Then, RIGHT AS it goes green, I go wipe that placebo file?
I'll do that, I was planning to do that anyway.
I know it's a protection so it won't damage the battery... But it's supposed to charge back up once it's discharged to 90%, not continue to go down below 70%!
Click to expand...
Click to collapse
Charge it till green with the phone turned on.... Then once full unplug wipe stats reboot the phone and leave it off the charger also make sure fastboot is off too..
Use it till it dies then charge it.... with it off till it goes green boot phone and your good to go...
Man that is weird about yours being off my guess is the stats are screwy so this should fix you up...
Nothing too odd tho ....
reaper24 said:
Charge it till green with the phone turned on.... Then once full unplug wipe stats reboot the phone and leave it off the charger also make sure fastboot is off too..
Use it till it dies then charge it.... with it off till it goes green boot phone and your good to go...
Man that is weird about yours being off my guess is the stats are screwy so this should fix you up...
Nothing too odd tho ....
Click to expand...
Click to collapse
Anyway, weren't we told that the batterystats.bin is not responsible for the battery percentage we see?
Formhault said:
Anyway, weren't we told that the batterystats.bin is not responsible for the battery percentage we see?
Click to expand...
Click to collapse
All im going off is I have seen my gauge say 99% stuck on that green light saying full charge and never hit 100%
Did a wipe and let it die did a full charge it held 100% I calibrated mine I get a about a whole day of moderate to heavy use outta mine or more depends on what I am doing....
reaper24 said:
All im going off is I have seen my gauge say 99% stuck on that green light saying full charge and never hit 100%
Did a wipe and let it die did a full charge it held 100% I calibrated mine I get a about a whole day of moderate to heavy use outta mine or more depends on what I am doing....
Click to expand...
Click to collapse
It's been charging from 80% to 99% relatively fast. Stood at 99% for about half an hour =) .
I'll wipe that file, then...? I let the phone battery die and charge it while it's off and when the LED goes green I disconnect it? That was my concern always : do we have to charge it back up while it's OFF or ON...
--
Also, what ROM are you using? Given you're from the US, I believe you're using a CDMA ROM that is NOT compatible with my GSM phone . Right?
TWRP 2.0 solved my recharging issues while the phone is off.
tailsthecat3 said:
TWRP 2.0 solved my recharging issues while the phone is off.
Click to expand...
Click to collapse
I see the topic for it is in the CDMA section of the forum. Would it work on my GSM variant?! I see no refference to that, in the main topic, AGAIN. -.-
Formhault said:
I see the topic for it is in the CDMA section of the forum. Would it work on my GSM variant?! I see no refference to that, in the main topic, AGAIN. -.-
Click to expand...
Click to collapse
sorry dude
It's 2012. It's time to aggressively spread the word that discharging your phone, charging it back up and repeating the cycle 3 times while you chant monk songs will do absolutely nothing for your battery.
Battery 'conditioning' methods do not work, are not needed, and haven't been for a very long time now.
That is all!
freeza said:
It's 2012. It's time to aggressively spread the word that discharging your phone, charging it back up and repeating the cycle 3 times while you chant monk songs will do absolutely nothing for your battery.
Battery 'conditioning' methods do not work, are not needed, and haven't been for a very long time now.
That is all!
Click to expand...
Click to collapse
Lmao nice I dunno Im still stickin with discharging mine till it drops and giving it a full charge never hurts to do once in a blue moon... Same goes for laptop battery's you don't wanna leave it on the charger all the time sometimes it good to kill them every once in awhile .....
freeza said:
It's 2012. It's time to aggressively spread the word that discharging your phone, charging it back up and repeating the cycle 3 times while you chant monk songs will do absolutely nothing for your battery.
Battery 'conditioning' methods do not work, are not needed, and haven't been for a very long time now.
That is all!
Click to expand...
Click to collapse
Yeah, well, I did do that 'conditioning' and it seemed like it worked, at least for a few days. I guess it's just a placebo. That was when I had the Desire and the Desire HD. I didn't have time to let the phone charge while off lately, perhaps I will, soon.
reaper24 said:
Lmao nice I dunno Im still stickin with discharging mine till it drops and giving it a full charge never hurts to do once in a blue moon... Same goes for laptop battery's you don't wanna leave it on the charger all the time sometimes it good to kill them every once in awhile .....
Click to expand...
Click to collapse
Whenever there's a socket nearby and I have the cords with me, I preffer to stay on the charger and take out the battery. I know it's reccomended that you use the battery 2-3 times a month and never stay without the battery for a long period of time.
--
Oh well, my initial problem seems to have been solved. I was worrying I may have a faulty battery / charger. This topic may be locked now... just to prevent somebody from answering something irrelevant and useless to it 2-3 years from now x)
I'm also having this problem.. Was wondering whether there is a solution for us GSM users? I've installed the oldest ClockworkMod that I can find on ROM Manager 5.0.1.6, but that still seems to have the same problem.
Are there any alternatives? Or does anyone have an older ClockWork and a method to install it without using ROM manager?
Thanks
fade2black101 said:
I'm also having this problem.. Was wondering whether there is a solution for us GSM users? I've installed the oldest ClockworkMod that I can find on ROM Manager 5.0.1.6, but that still seems to have the same problem.
Are there any alternatives? Or does anyone have an older ClockWork and a method to install it without using ROM manager?
Thanks
Click to expand...
Click to collapse
I let mine die dead put it on the charger for 9HRS and never got a green light might of need to let it sit long using clockwork 4.0
I turned it on and was at 99% and then I got a green light at 100% werid I use a Seidio 1900mha
Nah none of that worked for me unfortuntely.. had to do this to fix it. (install another recovery)
http://forum.xda-developers.com/showthread.php?t=1248231
number (3a)
fade2black101 said:
Nah none of that worked for me unfortuntely.. had to do this to fix it. (install another recovery)
http://forum.xda-developers.com/showthread.php?t=1248231
number (3a)
Click to expand...
Click to collapse
That is the recovery im using lol.. CDMA tho..
Wish I had discovered it before
reaper24 said:
I let mine die dead put it on the charger for 9HRS and never got a green light might of need to let it sit long using clockwork 4.0
I turned it on and was at 99% and then I got a green light at 100% werid I use a Seidio 1900mha
Click to expand...
Click to collapse
3rd party battery makers (like Momax, Seidio etc.) claim their batteries hold up to 80% of the specificed capacity, and sometimes, EVEN 60% ! That is RUBBISH.
I had a solar battery (China). It said it was of 2600 mAh. Wouldn't charge my old Desire even up to 80%... So it barely had 1000 mAh, lol.
--
And yeah, ClockworkMod Recovery by Revolutionary (not sure how to really call it, lol) 4.0.1.4 is the best... Too bad TeamWinRecoveryProject isn't available for us, GSM owners . WHY THE F*** is it for CDMA only, though. The hardware CAN'T DIFFER THAT MUCH .

[Q] Battery is burning FAST !

First of all it wouldnt charge past 99%, And then, after one hour of standby it went down to 88%!!
Cm7 official stable release.
Me too no pass 99% :S
Try to download a "battery caliberation" app and do that, also burn it to 0% and charge to 100% while the phone is off..i heard that this might help.
Now i will flash Nottachtrix and do what i wrote Good luck man !
Velcis Ribeiro said:
Me too no pass 99% :S
Click to expand...
Click to collapse
The charging thing is something that is (seemingly) well known throughout the community. I have tried to do the calibration, but it doesn't seem to work that well (at least for me). There is a thread around here somewhere for fixing the issue. I just have never tried it due to work reasons.
The charging past 99% is a known issue with most of the ROMs. There is a thread in here that takes you step by step to get it to display 100%. Basically....
Charge the phone long enough to where you know it should be at 100% even though it is still displaying 99%.
Power the phone off while it is still connected to the charger and then pull the battery.
With the battery pulled, power the phone back on until you see the battery indicator with the "?".
Put the battery back in and reboot.
You will then see the display of 100% with the phone still connected to the charger. The only downside is that as soon as you disconnect the charger, it will drop back to 99%. I have done this multiple times.
You can try the latest nightly: update-cm-7-20120508-NIGHTLY-olympus-signed.zip
I read good things about it.
First of all, use Wipe Battery Stats function at recovery.
1 - Discharge all your smartphone battery;
2 - Connect it to the wall charger and don't turn it on;
3 - Wait till it shows you 100%;
4 - Remove the battery, wait 10 seconds, put it again and keep it turned off;
5 - Wait 30 minutes, keep it connected to the wall charger and press power button till it turns on;
6 - Wait 30 minutes, keep it connected to the wall charger and use Battery Calibration App to calibrate it;
It doesn't make any sense, but sometimes, after step 5, i prefer connect it to usb port in a laptop or computer and wait one hour. It always worked with me.
It might solve your problem .
Wiping battery stats does nothing. it just takes a few charge cycles. If it's a new rom and it's draining fast it's also cause you are probably playing with it a lot
Sent from my Galaxy Nexus using Tapatalk 2
nathan96 said:
after one hour of standby it went down to 88%!!
Click to expand...
Click to collapse
It could be a bluesleep problem... Install CPU Spy App and look if it goes into deep sleep mode. If not, there is a fix for it.
Aside from the OP's issue with the battery draining quickly, why does it matter if it doesn't show 100%?
Nothing can ever 'really' be 100% charged because as soon as you take it off mains it is instantly on the battery at lets say 99.9999%...
As long as the battery doesn't drain quickly I couldn't care less if its showing 99 or 100%.
The problem was that it was draining very quickly to smt like 50% and then it would hold longer...I just wiped everything, restored a neutrino 2.7 nandroid backup i had, flashed the jug fix v2 and now it shows 100%

Battery, problem doing my head in :(

ok so i have the stock sony erricsson battery right, i have Naa kernel latest, i have tried every rom out there so far, and my battery is getting drained out within 3 hours, i thought it was the battery bought new battery guess what? same thing again so now ive tried ICS MINIcm9 Naa version, ive tried every version of MINIcm7, ive battery calibrated ALOT OF TIMES ! I am about to try different now, so guys please any advice? any else get this problem?
Try full wipe then flash the rom again
Send from my E15i using xda premium.
Press thanks if helped
*Xperia X8 Black @ ICS 4.0.4 miniCM9 on nAa ICS*
Thank you very much nAa!
inda95 said:
ok so i have the stock sony erricsson battery right, i have Naa kernel latest, i have tried every rom out there so far, and my battery is getting drained out within 3 hours, i thought it was the battery bought new battery guess what? same thing again so now ive tried ICS MINIcm9 Naa version, ive tried every version of MINIcm7, ive battery calibrated ALOT OF TIMES ! I am about to try different now, so guys please any advice? any else get this problem?
Click to expand...
Click to collapse
make a test disabling the data/wifi and bluetooth, don't use full brightness in the screen after that use it normally if in those conditions the battery still drains in 3 hours then I dare to say that is something in the hardware of the phone
DONE all of that ! tried everything trust me well i think ive tried everything, im on stock rom now, calibrating my battery again and again till i get 100% after restart, because whenever i charge it charges in like 20 minutes, lets see how i go, sometimes with 30% battery i get 4 hours, sometimes with 100% battery i get 4 hours battery, makes no sense whatsoever.
If u want u can tried to change a new battery
Send from my E15i using xda premium.
Press thanks if helped
*Xperia X8 Black @ ICS 4.0.4 miniCM9 on nAa ICS*
Thank you very much nAa!
inda95 said:
DONE all of that ! tried everything trust me well i think ive tried everything, im on stock rom now, calibrating my battery again and again till i get 100% after restart, because whenever i charge it charges in like 20 minutes, lets see how i go, sometimes with 30% battery i get 4 hours, sometimes with 100% battery i get 4 hours battery, makes no sense whatsoever.
Click to expand...
Click to collapse
you would never get 100% after restart because the phone uses battery when booting and loading the system.
calibrating if you are talking about the option that erase the file that have the stats of the battery that isn't going to change anything if your phone discharge in x minutes it will still discharge in that same amount of time because that method of calibration is a kind of reset to the %display in the phone nothing else.
if you can. try measuring the mA of the battery after charging it with a tester, then measure it again when the phone display something like 50% of charge it shouldn't vary a lot if the battery is in a good state.
but you in the first post said that you have tried with a new battery and still get the same time. and at the same time say that you have tried the phone with the data off. and get discharged quickly. if that is accurate then your phone have some kind of hardware failure that is making it use more battery than necessary, so you should send it to repair.
ps: also you can check the phone signal if you are in an area with poor reception the phone will use more battery because it will need to use more potency to establish a link with the cell tower.
anancr said:
you would never get 100% after restart because the phone uses battery when booting and loading the system.
calibrating if you are talking about the option that erase the file that have the stats of the battery that isn't going to change anything if your phone discharge in x minutes it will still discharge in that same amount of time because that method of calibration is a kind of reset to the %display in the phone nothing else.
if you can. try measuring the mA of the battery after charging it with a tester, then measure it again when the phone display something like 50% of charge it shouldn't vary a lot if the battery is in a good state.
but you in the first post said that you have tried with a new battery and still get the same time. and at the same time say that you have tried the phone with the data off. and get discharged quickly. if that is accurate then your phone have some kind of hardware failure that is making it use more battery than necessary, so you should send it to repair.
ps: also you can check the phone signal if you are in an area with poor reception the phone will use more battery because it will need to use more potency to establish a link with the cell tower.
Click to expand...
Click to collapse
nope not in an area with poor signal, ok im thinkin its an hardware failure as well, i might need to buy an external charger , my charging port might be screwed up, but like when i let my battery die down a little bit, and then i calibrate when it is at about 40% i then wipe battery stats and restart phone its at 22% and it stayed at 22% all night i didnt put it too charge and i listened to music for about 30 minutes or so, now i dont know what the f*** is going on i love my x10 mini pro, i just want this solved
I sort of got this kind of problem when i was running MiniCM2.2.0. It really buggered up the battery, it would lose about 7 or 8 percent when i was just looking at the lockscreen after powering up my phone.
Sometimes it will just drain like in no time at all, complain that i have to charge it, but when I turn off the phone and restart it, and it will say i'm at 60 percent. sometimes that is true, sometimes not, i only put it on the charger when I'm reasonably sure there is no power left, ie, if after a restart of two or three it will still say i'm under 10%.
So, whenever it runs out of power,do a restart and see how much power you've got left. don't charge it until you're absolutely sure you have to. Still not sure where it leads to, but I don't think i'll get back the battery-endurance i had before., which was about 3 or 4 days on fairly minimal use, without 3g or wifi.
(PS: Don't wipe battery stats until the phone is fully charged. Charging it from just about nothing to 100% in one go and then wiping the stats seems to give me best result.)
SmG67 said:
I sort of got this kind of problem when i was running MiniCM2.2.0. It really buggered up the battery, it would lose about 7 or 8 percent when i was just looking at the lockscreen after powering up my phone.
Sometimes it will just drain like in no time at all, complain that i have to charge it, but when I turn off the phone and restart it, and it will say i'm at 60 percent. sometimes that is true, sometimes not, i only put it on the charger when I'm reasonably sure there is no power left, ie, if after a restart of two or three it will still say i'm under 10%.
So, whenever it runs out of power,do a restart and see how much power you've got left. don't charge it until you're absolutely sure you have to. Still not sure where it leads to, but I don't think i'll get back the battery-endurance i had before., which was about 3 or 4 days on fairly minimal use, without 3g or wifi.
(PS: Don't wipe battery stats until the phone is fully charged. Charging it from just about nothing to 100% in one go and then wiping the stats seems to give me best result.)
Click to expand...
Click to collapse
hmmmm yes thats like my problem, ive wipe the battery at 100 most the time, and it works, but not well enough at all. ill try that buddy ! thanks and i might have a solution in mind, i think it is our phones charging capability not only the roms fault, cause im at stock now and still same problem, im going to try charge battery externally see where it gets me
did you tried with another charger ?
using USB on pc, 10cents USB charger... ?
matmutant said:
did you tried with another charger ?
using USB on pc, 10cents USB charger... ?
Click to expand...
Click to collapse
yep ive tried different charger and charging through USB. same thing charges to 100% really fast, and comes back down really fast, every single time i restart my phone after it has charged to one hundred percentage drops by 20% until it has come to its real charged percentage i think it is in the hardware of my phone, am i able to connect a bst38 battery to an old nokia to try charge the phone?

[Q] Phone shutdowns itself when battery is ~10%

Hi all,
I recently bought an Xperia Mini pro and it carries the stock firmware 2.3.3, The first few days were fine and I could use till batery reaches 0% or 1% . I recently noticed when the battery reaches 10-12% it shuts down automatically, when I try to power on again, the LED flashes in red color ( indication of 0% battery) and won't turn on. It will turn on only if I connect it to a charger and charge it, the weird thing is the charging starts at where the battery level was before shutting down (10-12%)
Please help me to solve this issue
P.S: I have CWM installed, can I use the "Wipe battery stats" to solve this ? if so how ?
Gayan said:
Hi all,
I recently bought an Xperia Mini pro and it carries the stock firmware 2.3.3, The first few days were fine and I could use till batery reaches 0% or 1% . I recently noticed when the battery reaches 10-12% it shuts down automatically, when I try to power on again, the LED flashes in red color ( indication of 0% battery) and won't turn on. It will turn on only if I connect it to a charger and charge it, the weird thing is the charging starts at where the battery level was before shutting down (10-12%)
Please help me to solve this issue
P.S: I have CWM installed, can I use the "Wipe battery stats" to solve this ? if so how ?
Click to expand...
Click to collapse
Try it just hit delete battery stats it will do the rest. then phone off recharge fully, then turn it on.
evilbarcode said:
Try it just hit delete battery stats it will do the rest. then phone off recharge fully, then turn it on.
Click to expand...
Click to collapse
This will not calibrate battery...
@OP
You said you recently bought the phone. If so, just wait. Make sure you charge battery completely and then let it discharge until the phone tells you to recharge it. Keep doing that for a couple of weeks. New batteries can give such problems
I have that problem too. there was no such a problem. My rom is jj,s 3..1 with locked bootloader on my Ray.
Sent from my ST18i using xda app-developers app
Feanor88 said:
This will not calibrate battery...
@OP
You said you recently bought the phone. If so, just wait. Make sure you charge battery completely and then let it discharge until the phone tells you to recharge it. Keep doing that for a couple of weeks. New batteries can give such problems
Click to expand...
Click to collapse
Yup, I bought it just 13 days ago, never experienced this with my older phones ( 3 Sony Ericssons )
Gayan said:
Yup, I bought it just 13 days ago, never experienced this with my older phones ( 3 Sony Ericssons )
Click to expand...
Click to collapse
Well, you were lucky in the past
Feanor88 said:
Well, you were lucky in the past
Click to expand...
Click to collapse
I hope this will be solved in few days, anything you want to add ?
Nothing more to say
same thing
i have this always when i change rom, then i have to charge it 100% and discharge to 0% min. 3 times (without interruptions like pluging usb cable just for some file download to pc).
removing battery stats didnt help, only .formatting. the battery.

Battery always charging and drain

hi guys.
my s2's battery thinks she is always charging...and it drains very fast.
to make a workaround on this i have to take off battery and put it again, so it shows "discharging". but it starts right after i put it to charge again, when i took off the charger, it still shows "charging"
any idea? this is fcking me up my battery wont last even 3 hours
obs: already changed Rom, Kernel, but it didnt change anything..
obs2: even when i turn off the phone, it shows that battery icon like when is charging while phone is off. lol
obs3: my problem is EXACTLY THE SAME as this: http://forum.xda-developers.com/showthread.php?t=1427539
You could try a new battery, maybe it's not the phones fault
xubeiga said:
hi guys.
my s2's battery thinks she is always charging...and it drains very fast.
to make a workaround on this i have to take off battery and put it again, so it shows "discharging". but it starts right after i put it to charge again, when i took off the charger, it still shows "charging"
any idea? this is fcking me up my battery wont last even 3 hours
obs: already changed Rom, Kernel, but it didnt change anything..
obs2: even when i turn off the phone, it shows that battery icon like when is charging while phone is off. lol
obs3: my problem is EXACTLY THE SAME as this: http://forum.xda-developers.com/showthread.php?t=1427539
Click to expand...
Click to collapse
this problem is usb slot, try wipe it with avio or wd40 but without battery(remove battery first)
if no work you need to change (30 euro here)
Read this thread. ....
http://forum.xda-developers.com/showthread.php?t=2335961
fairly common issue.....
Sent from my rooted, de bloated, stock JB powered S2 via PhilZ kernel and XDA developers app

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