screen blinking problem i9100 - Galaxy S II Q&A, Help & Troubleshooting

I bought my i9100 7 months ago. When I first have it I was very happy. But from first day of having this phone I've been facing many issues. Just because of this I become a flashcoholic (I flashed new rom more than 500 times I think) but nothing have changed. Here, I am using this little monster for 7 months. I can handle almost everything by myself to this phone but this problem. Screen starts blinking at 8% avarage. And few seconds later it turns off without warning. I changed battery because voltage is too low (I saw 2.9V when %8) new battery is same...
My old battery drains in 1 hour max (screen on time)
New battery 3 and a half hour but problem is still here.
And most of all I changed my screen mom have broke it... But old screen is also doing this.
Btw I bought this phone from someone so it didnt come with box it has already used.

And I almost forgot it... My old screen is better than this one.. Colors was really great on sunlight

Maybe it's a hardware related problem. But first,flash stock JB rom and see if the problem persists

I have exactly the same problem with this one. I bought two sets of new battery and still the same. It even dont prompt me lowbatt notification. When it reaches 40% it just flicker and die and it will not boot anymore until you charged it coz the battery is dead batt. I dont know if this has to be calibrated because im using 2000mAh before.

Related

[Q] Extreme low battery usage / Battery drops/ SG2 suddenly shut down

Hi all,
I've got my sg2 since june and since the first moment I have got the same problems. I had the stock ROM & kernel with android 2.3.3. The problems I experienced were these:
1) extreme low battery life (6-10 hours, with normal usage)
2) when using heavy apps, my s2 just suddenly turns of. When rebooting it, it has a battery drop of like ~15%. (this only occurs when battery is already bellow 40% left).
3) Like 5-20 times a day (it really difference day-to-day), I got the notification that I have to put my sg2 on a charger. - So the battery bar drops from example 80% to 1%. After like 1 or 2 minutes it just fills up back again to the 80% before. Sometimes when this occurs, it also turns in a few % (like 80% before, and afterwards 75%).
So what did I already tried to fix this?:
- bought new 1600mah battery > didnt solve the problem, conclusion: no hardware malfunction
- I thought the problems could be occured by the tiny space between the battery and the frame of the phone. So it had a lack in connection... So I filled up the little space with i tiny piece of paper> nope didnt helped.
- downloaded mutiply apps for battery saving, task killers, etc etc.> didnt help!
It's really really frustrating, and I'm guessing more and more it's just a software problem. I do have warranty/insurance on it, but i don't want to send my phone to a repairservice because then I've no phone for like 3 or 4 weeks.
So my last option for me was to try a custom ROM and Kernel. So last week I installed the Lite'ning ROM. I also followed up the advice to calibrate my battery, so i did.
And the first day it was running really smoothed! At the end of the day my battery was still alive and I've used it for over 20hours, so I was really statisfied... But a small sidenote: I had a really busy day at work, so I didnt use my phone that much.
So next day, used it alot more. After 5 hours it had only 50% left.... And that's not all, my phone turned off suddenly. Not once, not twice, but 5 times that day.
Seems all these solutions didnt help. The only positive thing of installing Lite'ning ROM is that i now have about 4 or 5 hours more battery life a day.. But if I use it alot, it shut downs a lot more. Wich lead in more battery drops after reboot.
I'm really desperate, and I really don't know what to do now. Does someone have got these really frustrating problems, and do you guys have got some solutions?
And one more question: is my warranty/issurance voided after installing the Lite'ning 6.1 ROM? or can it by tresspassed by using a Jig?
Tnx for your time, and I really really hope you guys can help me cause i'm really getting sick of all this. It's killing me!!!
ps. sorry for my bad english
your warranty is voided by installing custom rom but u can unroot and use the jig to remove counts in counter.
now apart from that it seems if u use your phone for 5-6 hours continuous it will drain the battery because main source of battery drain is the screen display but for moderate use it should be a little over a day.
i am unclear about your usage but still if you have doubts you should really get it checked at a service center.
I would flash back to stock, use the jig to clear the flash counter and exchange that phone, seems it has some type of hardware issue that could be related to temperature as it only shuts down when you use it.
My 0.02 cents
vickarul said:
your warranty is voided by installing custom rom but u can unroot and use the jig to remove counts in counter.
now apart from that it seems if u use your phone for 5-6 hours continuous it will drain the battery because main source of battery drain is the screen display but for moderate use it should be a little over a day.
i am unclear about your usage but still if you have doubts you should really get it checked at a service center.
Click to expand...
Click to collapse
My usage is definetly not THAT extreme, i guess moderate: I never watch movies or youtube, just some messages with WhatsApp, about 4 of 5 times a day checking Facebook, same for Twitter, always GPS off, some time of the day Wi-fi on, never play games, always closing apps on background.
i've got an example of my battery usage (this is one of the best battery usage days i got!!!):
imageshack.us/photo/my-images/809/sc20110622204452.jpg/
(Can't post direct link because i dont have 8 posts yet...)
Battery life the beginning .
better battery stats .
http://forum.xda-developers.com/showthread.php?t=1179809
check Wakelocks .
jje
Today step 2) happened to me

[Q] Any one else have this weird battery drain?

I got my galaxy s2 (international version) about 4 months ago. Recently I've noticed some weird battery drain mostly when I restart my phone, but it happens other times just out of the blue.
It might be a software bug not showing the proper battery level, but I've attached pictures that show normal battery drain even after that jump down. Obviously, if it was a a software fault the battery percentage should remain level or go up slightly. (Yes the battery level does go up a bit, but I lose significantly more battery than I gain.)
This has happened in many instances and I've only got a screenshot of two. Sometimes I get big discharge and at other times its small. It's pretty annoying when you think you've got enough battery and go out, only to find the phones dropped 20-30% out of nowhere.
My phone is unlocked and not branded (bought from carphone warehouse UK- CPW). It's running stock XXKI4 firmware (2.3.4) and I'm not rooted.
So my question is, has anyone else seen this happen or have I got a faulty battery? Is there a fix?
Hi there,
Battery drain is one one the main argouments you can find in this forums. ATM I'm in your same condition: after latets ROM ugrade (I've got latest CheckROM release), my phone "sucks" al lot more battery than before.
A lot of things could affect this: themes, skin, kernel, application bug, bad battery checking and so on. There isn't a valid answer... I think you must indagate on yourself, comparing what you find with forum's infos!!
Good luck!!
J.
ThatNerdGuy said:
I got my galaxy s2 (international version) about 4 months ago. Recently I've noticed some weird battery drain mostly when I restart my phone, but it happens other times just out of the blue.
It might be a software bug not showing the proper battery level, but I've attached pictures that show normal battery drain even after that jump down. Obviously, if it was a a software fault the battery percentage should remain level or go up slightly. (Yes the battery level does go up a bit, but I lose significantly more battery than I gain.)
This has happened in many instances and I've only got a screenshot of two. Sometimes I get big discharge and at other times its small. It's pretty annoying when you think you've got enough battery and go out, only to find the phones dropped 20-30% out of nowhere.
My phone is unlocked and not branded (bought from carphone warehouse UK- CPW). It's running stock XXKI4 firmware (2.3.4) and I'm not rooted.
So my question is, has anyone else seen this happen or have I got a faulty battery? Is there a fix?
Click to expand...
Click to collapse
There are several threads about battery drain.
For example here => http://forum.xda-developers.com/showthread.php?p=16973603
Maybe you find a useful tip.
You have always test it on your phone under your conditions.
You can try to flash special (Custom) ROMs and kernels, which are optimized for better battery life, but as there are so many different influences on battery life, it is nearly impossible to find a general "fix" for all users and phones.
Good luck!
well at least yours lasts 15 hours, mine lasts at most 10 hours on heavy usage.
P.S. I am using 2.3.5
As to Anwser to those "drops" or "gaps" in the graph, just recently i noticed that my phone was working normally, i was monitoring its battery drain (i have a thread going on about it), and after some time of no using, after class, i noticed that my phone asks for my SIM PIN again, and is in Safe Mode (i dont really know what that it). When i checked the battery monitoring graph (battery info) i notice the absolutr same fall (from 70% to 40%), but i remember that i saw and used my phone at 60-50% too ! So i can only assume that the phone crashes, eighter reboots for some reason, and the data isnt saved (for example it saves the data every 2 hours or so), so there appears the "gap".
Thats simply my opinion, but i do remember using the phone at the % between the two extremes (IN the gap), so i guess the data wasnt saved.
EDIT: Ha! I'll add some pis now to show you guys this: so in my current history i have two gaps, one big, and one smaller before. So, the first time, i turned off the phone and PULLED OUT THE BATTERY aswell cause i wanted to check my batteries mAh (its 1650 but thats offtopic). Thats how the small gap appeared ! As for the big one, my phone seemed to crash and reboot while i didnt notice, because in an hour or so of no using i woke it up and it asked for the SIM PIN.
So there, i think the phone eighter crashes or doesnt manages to save the battery data, and those gaps ("falls") appear.
[ GT-I9100 ] XDA APP SO TASTY WITH MY SLOW INTERNET OMNOMNOM
If i helped you in sure its easy to press that lil' pretty "Thanks" button

[Q] Phone Stops, Overheats, Abnormal battery draining

Hi everybody!! First of all thanks to all nice guys and girls here who are always willing to help noobs like me!! You really deserve a prize!! :highfive: Now, talking about my phone.. my gt-i9100 with JellyBAM ROM 7.8.0 and dorimanx 9.18 has a big problem. Well, after 5 months i haven't been able to understand if it's a hardware problem or a software one. Because I' ve always had problems even with my stock firmware (4.0.3 XWLPF italian no-brand ITV), but they were different. My battery has always drained very fast in every condition (asleep, full loaded cpu, even while off) and sometimes the battery went down from 70 to 20 in one night while the telephone was off. Then while the telephone was on it suddenly blocked and started heating. i wasn't able to switch it off normally but i had to do it forcibly (pressing 10 secs power off button). Then i changed battery with a new original samsung one. After a bit the problems were the same. Meanwhile i rooted the phone then got a cooked rom and a new kernel. Same results. High battery drain in every situation, then when the battery is about 35%, it goes down like in 5 minutes and the telephone shuts down even if there are no running tasks, wifi and mobile data off, screen off. I really don't know what to do.. I waited so long before posting this because i know there are tons of threads like this, but i couldn't find any solution searching in them. Now i've seen that BetterBatteryStats report a partial wakelock called AudioOut_2. I' ve already done some researches, but i haven't been able to make it go away. Please Help me!! I don't know what to do anymore
P.S. This happened while i was writing. battery at 60%, then the phone freezed and i couldn't turn it off normally. so i forced to shut down and when i switched it on again battery was at 33%. The phone was quite hot around the camera. Then i used it about 3 minutes and it freezed again, this time becoming really really hot. i forced to power off again and when i switched on, battery was 1%. Then i turned it off normally and put it in charge. But the battery went up again on her own (Blue part of the graphic) at 70%!!! then it started charging (Lighter part of the graphic)...

[Q] Galaxy S2 CM11 Extreme battery drain problem!

Hello there, I recently installed CM11- 20141224-Nightly and now I have a serious battery drain issue on my phone. It barely stays 5 hours with minimum usage, like browsing the web reading stuff it stays for about less than 2 hours, and without using it(on sleep) drains from 90% to 75% in 2hours. Because of this I have to charge the phone like 2-3 times daily! Is this something to do with the nightly? I thought of updating it to the new nightly that appeared on the 30th of December.
Will updating my phone into the new Snapshot make things any better? Should I do it?
I tried all kinds of battery fix apps, nothing works. The battery is a bit old though, maybe like 1 and a half years and I dont know how it was like on stock because it was handed to me from someone else. I would appreciate any help please!
FYI my phone is i9100T, after upgrading to CM it became i9100. Heard somewhere its not an issue.

[SGS2][GUIDE] GT-I9100 Phone shut-off at 30%-50% battery issue

Device: Samsung Galaxy S2 (GT-I9100) T-mobile carrier- unlocked, Rooted ,Running stock rom with a Philz touch recovery
Problem occurred after about a week of purchasing a new battery since the old one got swelled... but i have two brand new batteries now both are not original but good quality (1 Year Warranty) With both batteries I had the Problem
Let me explain the problem :
______________________
Device would go off in at a certain battery level from 30%-50% (as for my experience):fingers-crossed:
To turn the device ON plugging in is compulsory... but then the battery would be Completely drained..
Also if you try to do a restart at a battery level which is closer to the sudden death the after re boot the battery will be at a extremely low level and wont rise...
I searched all of i can to find a cure to this because the last thing u expect in a situation is your phone dying?
Apparently the problem seems to be that the phone is reading the battery wrong? about a 40% so simple do a calibration Nope Nothing not even a change...
Here is what I tried
_________________
Calibration Methods - Apps and manualy
Reset the device
Let the battery chip reset
and all other methods
but finally i decided to reflash another stock rom :silly:
and I Downloaded This file I9100XWLSD_I9100XENLS1_XEN Since it was a Genuine Netherlands version but i decided not to go with T mobile this time:fingers-crossed:
I Wiped all the phone in Recovery then went to download mode and using Odin V1.85 I flashed the stock rom:fingers-crossed:
Turned it on using a Fully charged battery that i charged separately and i used it for some time max brightness max vol radio and gps wifi bluetooth etc. to drain the battery and at 38% phone started to flicker and turned off again:crying: (no Sim or Memory inserted no apps downloaded)
But i decided to go again i plugged it in ( never changed the batt) and let it charge for about 95% and turned all on again and this time i put on my simcard and memory and did all what i did except that i downloaded whats app and instagram. and also when it reached below 55% i Played some music and locked the phone (NO SCREEN LOCK USED) and after some time i checked batt was at 38% :fingers-crossed: immediately i locked it back and left it again....
Viola !!!!!!!:laugh: last time i checked it was 15% low batt warning came ( haven't seen it in weeks) and then the battery drop was a bit fast and at 12% the screen got a little flicker so i plugged it in.. I think the problem is halfway solved, ill let the battery go some cycles and update soon.. also i will attach some screen shots off the battery level too and take a close look at the time and battery level after 15% on the pics
:victory:
Here is the original thread i created
_____________________________________________________________________________________________________________________________
BY KEVINR34
ANYONE IS WELCOME TO UPDATE ME ON MY MISTAKES!!​
Photos
https://drive.google.com/file/d/0BwUUQQJbYKT2VTZpREdSVE9mYWc/view?usp=sharing
https://drive.google.com/file/d/0BwUUQQJbYKT2Ym9SUnhJUTAzcnM/view?usp=sharing
https://drive.google.com/file/d/0BwUUQQJbYKT2bGV2dkhueWNFOUE/view?usp=sharing
https://drive.google.com/file/d/0BwUUQQJbYKT2Z2gxVDZNcjFJcnc/view?usp=sharing
https://drive.google.com/file/d/0BwUUQQJbYKT2eFlZVWNYdnpZSjg/view?usp=sharing
So yesterday I plugged the device until it reached about 85% and unplugged it when I was going to sleep, and at about 8 o'clock this morning i noticed that the battery level has risen to 96% , I think that is because the phone slowly gets to know the battery level correctly.. and right now it 11.08 am and I had turned on Mobile Hotspot and Data from 8 am , battery level is 82%.
I'll update again tonight when the battery drains completely
KevinR34 said:
So yesterday I plugged the device until it reached about 85% and unplugged it when I was going to sleep, and at about 8 o'clock this morning i noticed that the battery level has risen to 96% , I think that is because the phone slowly gets to know the battery level correctly.. and right now it 11.08 am and I had turned on Mobile Hotspot and Data from 8 am , battery level is 82%.
I'll update again tonight when the battery drains completely
Click to expand...
Click to collapse
Can you also share the SoT ? I know it depends on how a person uses the phone but still I want to have an idea. I might also try this to have a better battery life. I also once tried that exact stock rom but without even charging completely, I went on to another ROM. So I am gonna give it another try today . :good:
Eren Kibar said:
Can you also share the SoT ? I know it depends on how a person uses the phone but still I want to have an idea. I might also try this to have a better battery life. I also once tried that exact stock rom but without even charging completely, I went on to another ROM. So I am gonna give it another try today . :good:
Click to expand...
Click to collapse
Hello Eren ! Whats SoT? and you also have the same problem?
So... Now the problem is still there.....
Phone went off at 43% and also figured that there has been a near vertical drop of battery from 40 % to 12% and thats when the device was standby,
phone goes off only when im using it?
Can a Expert please look into this matter and help me please. looks like all what I did has been useless
KevinR34 said:
Hello Eren ! Whats SoT? and you also have the same problem?
Click to expand...
Click to collapse
SoT=Screen on time. And no I don't have this problem. But I want to try the stock rom so I wanted to see what your screen on time is.
Eren Kibar said:
SoT=Screen on time. And no I don't have this problem. But I want to try the stock rom so I wanted to see what your screen on time is.
View attachment 3857555
Click to expand...
Click to collapse
1hr 45m 15s
btw its charging now so ill give you a number when the battery drains completely
I have the same problem. when I reboot my device in most of cases the battry level showed is a 10/30% lower than before and also my phone shuts off showing 10% percent or less and the sreen brightness goes a bit crazy for 2 secs before it shuts off. I have the original Samsung battery but I also bought the 2000mAh extended kit but now this issue happens in both of them I've read that I have to callibrate battery so I will try this and post results
1. Turn off your phone.
2. Fully Charge.
3. When getting 100% signal, unplug quickly.
4. Pull off the battery and put it anywhere.
5. Wait for 180 seconds exactly (be careful )
6. Meanwhile, take this opportunity to dust off the internal compartment.
7. Put back the battery on the right side.
8. Turn on the phone.
9. Pray the Battery god
10. ... and voilà !
This is from this post http://forum.xda-developers.com/galaxy-s2/general/tips-best-to-calibrate-s2-battery-t1312273
achimakulo said:
I have the same problem. when I reboot my device in most of cases the battry level showed is a 10/30% lower than before and also my phone shuts off showing 10% percent or less and the sreen brightness goes a bit crazy for 2 secs before it shuts off. I have the original Samsung battery but I also bought the 2000mAh extended kit but now this issue happens in both of them I've read that I have to callibrate battery so I will try this and post results
1. Turn off your phone.
2. Fully Charge.
3. When getting 100% signal, unplug quickly.
4. Pull off the battery and put it anywhere.
5. Wait for 180 seconds exactly (be careful )
6. Meanwhile, take this opportunity to dust off the internal compartment.
7. Put back the battery on the right side.
8. Turn on the phone.
9. Pray the Battery god
10. ... and voilà !
This is from this post http://forum.xda-developers.com/galaxy-s2/general/tips-best-to-calibrate-s2-battery-t1312273
Click to expand...
Click to collapse
I did this method already but results were negative for me:crying::crying::crying::crying::crying:
KevinR34 said:
I did this method already but results were negative for me:crying::crying::crying::crying::crying:
Click to expand...
Click to collapse
I did it and my results were this. My phone shuts off at 5%, slightly less than other times. I rebooted it once while 80% percent and remained the same. Battery lasted 2h and 40 mins with medium/high usage
I would say it fixed something for me but not a lot. Now im going to try it with the 2000mAh samsung battery
Edit1: now after another full cycle the battery lasted for more or less 3 hours with medium usage and shutted off at 8% now im going to try on my 2000mAh battery that had an 8% and it shutted of normally with the shutting off screen and without weird screen brightness tweaks
achimakulo said:
I did it and my results were this. My phone shuts off at 5%, slightly less than other times. I rebooted it once while 80% percent and remained the same. Battery lasted 2h and 40 mins with medium/high usage
I would say it fixed something for me but not a lot. Now im going to try it with the 2000mAh samsung battery
Edit1: now after another full cycle the battery lasted for more or less 3 hours with medium usage and shutted off at 8% now im going to try on my 2000mAh battery that had an 8% and it shutted of normally with the shutting off screen and without weird screen brightness tweaks
Click to expand...
Click to collapse
Well I think it worked for you because you had a Original Samsung Battery Right?
In SL a Original batt would only come with the phone :crying: Fakes have invaded,,
So i read some where that fakes dont have the original capacity? so if it is then it would match perfectly !
so now im in hunt of a original hopefully this is not a phone problem
No its not definetly a phone problem and it isn't a big deal to find an original samsung battery for sgs2 however the Samsung 2000 mAh battery kit its waay harder to find and the ones that I found are more expensive than when it came out
Yeah, I definitely think the problem is with your battery, so you just need to replace it.
Btw guys, what is your general Screen on Time with your standard 1650mah battery (not extended)? I'm running CM13 and I barely get 2h on a single charge, but then I read reviews from the early days of S2 and for instance here they have 4h24 browsing time (with screen at 50% brightness) or 8h video playback.
Is it all related to being a different ROM, or my battery just needs a retirement? Being a different ROM would impact so much on the Screen on Time? Also, I have auto-brightness always enabled, would that have such a significant impact?
Greetings
EDIT: Since I generally use the phone indoors I don't think that would be the difference in such a different Screen on Time
bolshoi_booze said:
Yeah, I definitely think the problem is with your battery, so you just need to replace it.
Btw guys, what is your general Screen on Time with your standard 1650mah battery (not extended)? I'm running CM13 and I barely get 2h on a single charge, but then I read reviews from the early days of S2 and for instance here they have 4h24 browsing time (with screen at 50% brightness) or 8h video playback.
Is it all related to being a different ROM, or my battery just needs a retirement? Being a different ROM would impact so much on the Screen on Time? Also, I have auto-brightness always enabled, would that have such a significant impact?
Greetings
EDIT: Since I generally use the phone indoors I don't think that would be the difference in such a different Screen on Time
Click to expand...
Click to collapse
With 1650 mAh and on CM13 nightlies, my best so far is 2h and 28 mins with brightness at between %0 and %25 and only wifi is on.
That 4 hour SoT is probably on gingerbread though.
bolshoi_booze said:
Yeah, I definitely think the problem is with your battery, so you just need to replace it.
Btw guys, what is your general Screen on Time with your standard 1650mah battery (not extended)? I'm running CM13 and I barely get 2h on a single charge, but then I read reviews from the early days of S2 and for instance here they have 4h24 browsing time (with screen at 50% brightness) or 8h video playback.
Is it all related to being a different ROM, or my battery just needs a retirement? Being a different ROM would impact so much on the Screen on Time? Also, I have auto-brightness always enabled, would that have such a significant impact?
Greetings
EDIT: Since I generally use the phone indoors I don't think that would be the difference in such a different Screen on Time
Click to expand...
Click to collapse
Im on cm12.1 and 1650mAh last for about 2 and a half hour with lowest brightness and high use
Eren Kibar said:
...
That 4 hour SoT is probably on gingerbread though.
Click to expand...
Click to collapse
Being gingerbread would make so much of a difference? It's like twice as much SoT...
Thanks anyways
bolshoi_booze said:
Being gingerbread would make so much of a difference? It's like twice as much SoT...
Thanks anyways
Click to expand...
Click to collapse
Never used SGS2 on gingerbread but it is possible I think. I remember reading on forums that people started to get worse battery life with ICS and with JB it got even worse. So yeah probably possible.
bolshoi_booze said:
Yeah, I definitely think the problem is with your battery, so you just need to replace it.
Btw guys, what is your general Screen on Time with your standard 1650mah battery (not extended)? I'm running CM13 and I barely get 2h on a single charge, but then I read reviews from the early days of S2 and for instance here they have 4h24 browsing time (with screen at 50% brightness) or 8h video playback.
Is it all related to being a different ROM, or my battery just needs a retirement? Being a different ROM would impact so much on the Screen on Time? Also, I have auto-brightness always enabled, would that have such a significant impact?
Greetings
EDIT: Since I generally use the phone indoors I don't think that would be the difference in such a different Screen on Time
Click to expand...
Click to collapse
Hi Bolshoi! I will definetly update the SOT on the stock rom after the new battery arrives! I asked one of my friends who is in Netherlands to buy and send me a batt. Regards!
achimakulo said:
No its not definetly a phone problem and it isn't a big deal to find an original samsung battery for sgs2 however the Samsung 2000 mAh battery kit its waay harder to find and the ones that I found are more expensive than when it came out
Click to expand...
Click to collapse
Im From Sri Lanka Achimakulo its so rare to find a Genuine Samsung battery for a older device like mine and even if i found one its either old or way too much priced
I think its because my device is so rare in this country
Is it fixed now??
See attachment
battery level drop is natural? ?

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