Complete Guide to Extend & Improve Battery Life of Samsung Galaxy S2 Android Device ~ How-to!

Samsung Galaxy S II is currently one of the best smartphone in the market which stand tall above most of the other competitor brand like Apple, BlackBerry, Nokia and it is believed to be on-par-with or better than Apple’s latest Phone 4S. Since it was last launch back in the June, Samsung Galaxy S2 has sold more than 10 million units worldwide and it is crown as one of the best Android smartphone to date. In term of the international recognition, Samsung’s GT-I9100 model has even won the title as “Phone of The Year’ by annual T3 award.

So everything seem to be perfect huh for Samsung Galaxy S II? Not really folks, one of the major complaint of Samsung Galaxy S2 is that the battery drain off too quickly. Yes, indeed Samsung Galaxy SII does has a bad battery life. I am experiencing the same problem too as I just got my brand new Samsung Galaxy S2 on last Thurs and one thing I did notice, the battery will get discharge too quickly when I using the device. And it has triggered me to do a lot of research on how I can possibly improve the battery life of my Samsung Galaxy S II.

So basically in this post, I will share with you all the research and study I have found so far that will be able to improve and extend the battery life of your Samsung device greatly. Checkout all the tweaks and hacks below on how to increase Samsung Galaxy S2 battery life.

 

Samsung Galaxy S ii Improve Battery Life

15 Tips How to Improve and Extend Battery Life of Samsung Galaxy S II (2) ~ Android

1. Update the latest stock firmware from Samsung with Samsung Kies

It is believe that the bad battery consumption issue of Samsung Galaxy S II is partly due to the buggy firmware and flashing your device with the latest firmware will ensure that your phone are free from the firmware bugs and improve your battery performance.

*Notes: Samsung Kies can be downloaded from the link here. You can check out the step by step video guide provided by Samsung if you not sure how to perform the firmware update. 

2. Reduce display brightness of your screen

Although Samsung Galaxy S2 come with Super AMOLED Plus which is supposedly to reduce your battery consumption but ironically it is one of the biggest battery life eater of your phone. Try to disable Automatic brightness and set it to the lowest level will improve your battery life a lot.

The configuration can be access through ~ >Settings >Display > Brightness (move the bar to the lowest point [far left]

3. Remove unused widget in the menu

You must always remember that the more widget you have, the more battery life will be consumed up especially those widgets that use data connection and auto sync based on schedule. PS: only keep those widgets that you really need.

4. Turn off Bluetooth, GPS when idle

Only turn on Bluetooth and GPS when you need it, otherwise please disable it as it will consume your battery resources. Or please ensure that the charger is hook on your device when you turn on the GPS in the car.

5. Turn off 3G data connection, use Wi-Fi instead

Always gets connected with Wi-Fi when available. 3G data connection consume more battery compare to Wi-Fi connection. Turn off both of them when not needed.

6. Ensure you phone have a good signal as poor signal consume more battery life

When the phone is at the poor receiving end it will tend to use more power than usual to increase its signal strength with the communication tower. So it is always good to make sure that your phone has a good signal reception. You can try to switch to 2G if 3G connection signal in your area is poor.


7. Try to disable / reduce auto-sync whenever possible

All you have learned, data connection does consume lot of your battery life. By disabling the background scheduled auto-sync applications like Facebook, Gmail and Twitter can save your phone lot deal of battery life. If you really have to turn on the auto-sync feature in the phone try to reduce the frequency of auto-sync will also help to improve your phone battery life.

8. Disable new Samsung Apps notification

You can turn off new Samsung Apps notification if you not using it.

The configuration can be access through ~ >Settings >Application > Samsung Apps > Off

9. Turn off motion sensor

Only enable the Samsung Galaxy S2 Motion features that you using and try to disable those you not using like turn over, tilt, panning and double tap, turn them off as it might save your some battery life.


10. Use solid black static wallpaper and no live wallpaper

Most of the phone including Samsung Galaxy S2 Super AMOLED Plus will tend to use less power on just solid black wallpaper than a lively solid white color based wallpaper because there will be almost no backlight on the screen. Please do bear in mind that a lovely animation live wallpaper will even cost you more battery life as ~ CPU power = battery life.

11. Fully close application that not use

Samsung Galaxy S2 is a super multitasking mini computer that come with dual-core processor but running a lot of  applications at the background can actually increase your battery usage because they all require your phone CPU processing power. So it is advisable to fully close all the background applications that you not needed.

12. Freeze unused bundle applications

Too many original bundle software running in your Samsung Galaxy S2? Freeze them… Titanium Backup Pro provide a way for you to freeze away all the stock application like Social Hub, Email, Maps that are running and utilizing your phone processing power even when you’r not using them. Ps: Your phone need to be rooted before you can use the Titanium Backup Pro.

13. Undervolt and underclock You 1.2 GHz CPU

Aside from display, Samsung Galaxy S2′s powerful CPU is one of the reason why your battery life eat up so fast. You can just underclock and undervolt it with SetCPU if you don’t need that much of processing power. Ps: Your phone need to be rooted before you can use the SetCPU.

14.Download and install JuiceDefender

With an amazingly over 5,000,000 downloads recorded so far in the Android market, JuiceDefender will definately extend your the battery life of your Samsung Galaxy S2. JuiceDefender pack with powerful and easy to use power manager app that specifically designed to extend the battery life of your Android device. It can automatically and transparently manages the utilisation of your SII battery like when to enable and disable the 3G/4G connectivity and WiFi.

JuiceDefender is available in the Android Market for free and if you would like to have a more powerful (customisable) version you can download the add-on JuiceDefender Ultimate for a small fee of $6.83.

15. Use custom ROM / firmware

Custom ROM / firmware offer a lot of optimization and tweaks to improve the performance of your battery life. You can try it out if you feel that after you have tried out all the tips above and your battery still draining too fast. But please be reminded that flashing a custom ROM / firmware will be voiding the warranty provided by Samsung.

Please let me know if there are other tips and tweaks to improve battery life of Samsung Galaxy S2 or any Android device that I have missed out.

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58 Responses to “Complete Guide to Extend & Improve Battery Life of Samsung Galaxy S2 Android Device ~ How-to!”

  1. George Navedo
    October 25, 2011 at 6:18 pm #

    you guys provide better information than many others, i consider it the best I have seen so far out of 8 or 9 I have checked out. Thank you great job.

    • Mike
      October 25, 2011 at 6:24 pm #

      Thanks a lot for the compliment George. We will continue to improve our site and come out with more tips and how-to guide that would benefit all. Btw thanks for drop by.

      Stay tune for more update from us.

      Regards,
      Mike

  2. Jim
    October 31, 2011 at 11:21 pm #

    I just got my Galaxy S2. Last night I fully charged it, closed all open apps, put it into lock mode and went to bed. When I got up six hours later the battery was down to 78%. This seems like way too much drain for standby mode. Any suggestions? Thanks!

    • Mike
      October 31, 2011 at 11:54 pm #

      Hi Jim,

      First of all I would like to congratulate you for getting one of the best smartphone in the world – SG2.

      I believe that got something to do with the default firmware that come with the unit as I am experiencing the same thing when I got my unit. And your unit should be GT-I9100 right?

      But don’t worry, go to Samsung site to grab the Samsung Kies then after you have installed in your PC. Hook up your Samsung Galaxy S2 to your PC and begin the firmware upgrade process. It is estimated to take you like hour+ to get the latest firmware upgraded.

      And you will observe that after the upgrade you will get a significant battery improvement and the unit will not become so hot as it used to.

      If you still feel that your battery is draining too fast then probably you should try out some tips which we have pointed out above. PS: Try to get yourself a Juice Defender from Android Market first, a free version will work fine.

      I hope you will see some improvement after that. Do let me know if you experiencing any issue during the process.

      Thanks for drop by.

      Regards,
      Mike

      • Jim
        November 1, 2011 at 5:51 am #

        Hi Mike,

        Thanks for your reply. When I get the model number of my phone from settings I see Samsung-SGH-1777. -Jim

      • Jim
        November 1, 2011 at 6:58 am #

        When connecting my phone after lengthy installation of Kies I get a message which says that my model # cannot be updated.

        • Mike
          November 1, 2011 at 8:39 am #

          Hi Jim,

          Oo SGH-1777 from AT&T. That sound weird as the normally Samsung Kies will try to determine which version you are currently running if it is some older version than recorded in Samsung database; the upgrade will begin.

          Btw please try to install the Juice Defender first while we are still looking for solution for your SGH-1777.

          Regards,
          Mike

  3. Stephanie
    November 6, 2011 at 1:51 am #

    I have the SGH-1777 from AT&T and am also have huge battery problems. I went to the AT&T store.. and they were like.. “Yeah that is normal… get an iPhone”…. so now my issue is.. obviously I cannot go to them for help with my phone.. who can I go to? I go online and read about what to do.. but the talk is so weird to me.. i have no idea what is being said…

    Ex:iPhone User – currently a Galaxy user who is frustrated to all he** and back.. about to become an iPhone user again if I cannot get help with the battery =(

    • Mike
      November 6, 2011 at 4:59 am #

      Hi Stephenie,

      Thanks for your visit. We understand your problem and how desperate it was when the phone keep draining off the battery like nothing. Ok here are few recommendation that we would suggest.

      1. Try to turn off WiFi manually before you off the screen, we found some users reported that there are default Apps that come with the SGH-1777 that keep draining off the battery life even when the device is set to sleep mode. According to xda-developer, the problematic apps change behavior on wifi and will start using lots of background data and it will drain your battery life.

      2. Try to disable or turn off AP Mobile widget which normally located at 2nd tab of your home screen.

      3. Get Juice Defender from Android Market.

      And keep us posted on your progress as we are interested to see whether it help to solve your issue. We going to help you to look for other option if these don’t work before you finally make up your mind to switch back to iPhone.

      Thanks
      Mike

  4. Josh
    November 18, 2011 at 12:34 am #

    Hey, i recently got the lte version of the s2, and it should be on the latest firmware, however my battery drains about 20 percent throughout the night on standby mode with all apps turned off. Any ideas?

    • Mike
      November 18, 2011 at 10:24 am #

      Hi Josh,

      Try to turn off the WiFi and data package as both are real battery eater and they will just run at the background even when the phone is in the stand by mode.

      Or a much easy way, you can try to get a Juice Defender from Android Market, a free version will do as it will automatically handle all the activity for you.

      Btw keep us posted whether it help. If it doesn’t we will suggest some other alternative solution.

      Thanks for your visit btw.:)

      Regards,
      MIke

  5. November 18, 2011 at 8:16 pm #

    Hi Mike

    I got my galaxy s2 on 14/11/11. I normally switch the 4ne off to save on battrey overnight.G uess what in the morning my battery still drained and low. i have pretty much taken your advice today. However what i want to know, is having emails on my 4ne a battrey sucker too? I just wonder, mhmm?

    With regards
    Sindi

    • Mike
      November 18, 2011 at 10:59 pm #

      Hi Sindi,

      Yes so far as what we found out by leaving the data syncing On either on the WiFi or 3G it going to take a lot of your battery life. Try to disable it whenever you not using it as leaving the background activity active you gonna to lose more of your battery life.

      From my experience on SG2, leaving the WiFi open alone in stand by mode will cost your battery life to sink from 92% to 72% that is a total of 20% drain in just a mere 5-6 hours. While when I enable the Juice Defender, I just get about 5% drain. A drastic improvement I would say.

      Our advise as usual install Juice Defender and let it take over/ handle your data connection.

      Keep us in the loop of your result.

      Regards,
      Mike

  6. Josh
    November 20, 2011 at 5:46 am #

    Hey Mike,

    I just wanted to say i’ve done everything you told me as well as things from your article, and my battery is significantly better. Juice defender actually helps a lot!

    thanks again!

    • Mike
      November 20, 2011 at 10:33 am #

      Hi Josh,

      Glad that help. Hope that the we can get a better battery life improvement on the upcoming Ice Cream Sandwich.

      Regards,
      Mike

  7. January 12, 2012 at 1:46 pm #

    such a useful advise MIKE, i bought my samsung galaxy couple of days before and i was almost thinking to return it to the service provider due to bad battery performance. I will surely follow your advice and looking forward for better result. cheers.

  8. Aryan
    January 27, 2012 at 12:58 pm #

    Dear Mike,

    I have a problem not related to battery life in my galaxy S2.

    I opened the browser (original or Opera Mini) and loaded some pages for reading. After a while, I wanted to launch some other apps by pressing the menu button first then followed by the apps I wanted to open. After using the apps, I still can launch the browser and see the web pages that I opened earlier for me to continue my reading. But if I leave the phone for sometimes, the web pages will be gone when I launched the browser and I need to reload all the web pages all over again.

    Any idea and advise on this problem? I suspect there is an auto terminating of the active application feature running in the background which I can’t locate anywhere in the phone setting. Please help!

    Thanks in advance,
    Aryan

  9. pankaj
    January 30, 2012 at 3:21 pm #

    Hi,

    i recently bought Sansung galaxy s and its battery get discharged soon.

    When I check the battery status, 54% of battery is used by cell standby which is usage of cell radio. rest all are less in comparision. I have already taken all other measures like wifi off, low brightness and all other tips given above.

    How can i save battery.

    thanks

    • Mike
      January 31, 2012 at 7:46 pm #

      Hi pankaj,

      Have you installed the Juice Defender? Cause we have experienced a great battery improvement after installation.

      And do upgrade your phone to the latest firmware as it really make a lot of different.

      Let us know what is your outcome after that.
      Thanks for your visit btw.
      Regards,
      Mike

  10. Henry
    February 2, 2012 at 8:21 pm #

    hello mike,
    i just bought my Samsung galaxy s2 and the battery went low.when i put the phone on charge,the battery wont charge as there is this Yellow caution sign attached to the battery sign but the phone wont charge again.i leave the phone on charge from evening till morning but it was the same thing.I taught there was problem with the battery so i bought new battery and after i use it for 2 weeks,i experience the same problem and now there is problem with the new battery.should i buy new battery or there is a way i can make the battery work again?i hope you can help me as i am tired of buying new battery.
    Thanks
    Henry

    • Mike
      February 4, 2012 at 12:09 am #

      Hi Henry,

      If the Galaxy S2 is a brand new unit think you could just return the faulty unit back to Samsung and they might just replace you a new phone or battery.

      Anyway you could try out this simple solution,

      Try to take out the battery and knock it a few times then install it back into your Galaxy S2.

      If that doesn’t work, we suggest you to get the warranty claim from Samsung.

      Hope that help.
      Regards,
      Mike

  11. Vidas
    February 11, 2012 at 7:12 pm #

    Hi Mike

    I have GS2 (i9100) for two weeks. I know that a smartphone is a small computer, and you should treat it like that, so i don’t expect very much of battery life. (laptops last 3-4 hours if you use them). I have tried one test, charged the battery fully, turned off all wifis, packet data, gps, bluetooth and stuff, just left the screen brightness to automatic. I used the phone just like normal phone, texting, calling, turn on internet when i use it, for short, and turn off again. When using like this, after 48 hours, i still had 66% of the battery. ;) But when i try to use it like a smartphone, like internet on, then it starts draining. The same like you told before on this forum, about 20-25 % only while standby at night (9hours) with just wifi on.
    I have the juice defender, i even bought now the ultimate version. Other thing is with the JD, that if i use some voip program, like Viber or Skype, will i get the calls with the JD on ? If i understand right, JD turns off the connectivity for some time, so i don’t get the calls on time (message i can read even when i get it later, but not a call). If that happens, then the JD is unusefull for me, because i turn on and off the connectivity myself when i don’t need it, but i want to keep it alive just fr those sync programs like viber, or even facebook messenger.
    How does that work ?
    Thanks, Vidas

  12. Vidas
    February 11, 2012 at 7:23 pm #

    P.S.
    Kies shows that i have latest firmware, Android version is 2.3.4 (i heard there is a newer 2.3 version, like 2.3.5 or 6, some phones have it, but Kies does not give that update to use on my GS2).
    Perhaps the Android 4.0 (ICS) will have a better battery usage ? I know that GS2 should get it on the first quarter of 2012, along with Galaxy Note and Galaxy R.
    Thanks again, Vidas

  13. laleethaa
    February 15, 2012 at 1:11 pm #

    how do i download the new firmware?

    • Mike
      February 15, 2012 at 11:29 pm #

      Hi laleethaa,

      Please follow the download link for Samsung Kies as indicated in the first step of the guide. Then connect your phone to the PC that has the Kies installed. Then just follow all the step provided by the software as it will prompt for a firmware update once it is available.

      Regards,
      Mike

  14. merlin
    February 16, 2012 at 4:00 pm #

    Hi Mike thanks very much brcause this is my problem too galaxy s2 its a monster for eating battery tnx alot

    • Mike
      February 16, 2012 at 10:44 pm #

      Hi merlin,

      You are most welcome. Glad the tips did help you up.

      Regards,
      Mike

  15. merlin
    February 17, 2012 at 5:19 pm #

    Hi Mike i hope you are good i doo all this things but my phone didnt save battery :(
    Merlin

    • Mike
      February 19, 2012 at 1:24 pm #

      Hi merlin,

      Have you tried to install the Juice Defender? So far I have a great experience with the app and could notice a significant battery life improvement after the installation.

      Regards,
      Mike

  16. Vidas
    February 18, 2012 at 6:22 pm #

    Hi Mike
    I wrote this before, but perhaps you don’t see it, because you answered to posts after mine. So i am repeating.

    I have GS2 (i9100) for two weeks. I know that a smartphone is a small computer, and you should treat it like that, so i don’t expect very much of battery life. (laptops last 3-4 hours if you use them). I have tried one test, charged the battery fully, turned off all wifis, packet data, gps, bluetooth and stuff, just left the screen brightness to automatic. I used the phone just like normal phone, texting, calling, turn on internet when i use it, for short, and turn off again. When using like this, after 48 hours, i still had 66% of the battery. But when i try to use it like a smartphone, like internet on, then it starts draining. The same like you told before on this forum, about 20-25 % only while standby at night (9hours) with just wifi on.
    I have the juice defender, i even bought now the ultimate version. Other thing is with the JD, that if i use some voip program, like Viber or Skype, will i get the calls with the JD on ? If i understand right, JD turns off the connectivity for some time, so i don’t get the calls on time (message i can read even when i get it later, but not a call). If that happens, then the JD is unusefull for me, because i turn on and off the connectivity myself when i don’t need it, but i want to keep it alive just fr those sync programs like viber, or even facebook messenger.
    How does that work ?

    P.S.
    Kies shows that i have latest firmware, Android version is 2.3.4 (i heard there is a newer 2.3 version, like 2.3.5 or 6, some phones have it, but Kies does not give that update to use on my GS2).
    Perhaps the Android 4.0 (ICS) will have a better battery usage ? I know that GS2 should get it on the first quarter of 2012, along with Galaxy Note and Galaxy R.
    Thanks, Vidas

    • Mike
      February 19, 2012 at 3:40 pm #

      Hi Vidas,

      Sorry for missing out your previous comment.

      Yes, you right about the JD that it will turn off all the WiFi/ data connectivity for some interval of time according to your sync setting. If you rely on text messaging via data (like WhatsApp, Viber, Kakaotalk, etc) then you will only receive your messages when the data is enabled at specified interval or when you’re using the phone. There may also be delays in receiving your emails and notifications. And it will not be practical if you would like to use Viber /Skype to receive calls.

      In addition, the syncing will really eaten up your battery greatly and the case not just apply to Android but to iPhone as well. Hopefully a new technology will be able to address that issue. Currently we couldn’t think of other solution except you would like to opt for a bigger mAh battery and it would get phone to last a longer hour.

      Yep, ICS should be released pretty soon and we don’t think Samsung will even release the Android 2.3.6 for the region/ country that yet to get the update.

      Hmm… for the better battery with ICS, we will review through the latest beta release of the ICS to check if there any improvement in that.

      Hope that answer your question.
      Regards,
      Mike

  17. Nicolas
    February 20, 2012 at 7:55 pm #

    Dear Mike,

    Over past couple of days I have noticed that my battery life reduces significantly as soon as i disconnect my phone from the power charger. I have only had my phone for about 1 month.

    I have a few apps (facebook, a few news website) but run no games or anything similar.

    I have been charging my phone for at least 6 hours but as stated above the battery never reaches 100%. Is this a fault with my phone?

    • Mike
      February 21, 2012 at 10:03 pm #

      Hi Nicolas,

      Have you turn off all the sync e.g Facebook, Gmail and etc when the screen was off? Is it the same thing after you installed the Juice Defender?

      The battery never reach 100%? We suggest you to hook the phone on the power charger for a couple of minute e.g. 10 – 15 minutes after the phone indicated that it was fulled.

      Normally I leave it hook with power source for a couple of minutes to ensure that it is fully charge before unplug the power supply.

      PS: Don’t worry of spoiling your battery this way, as there is an internal circuitry that will cut off the charging activity when it is fully charged so your phone will always be safe from overheating. It will take a couple more minutes for the battery to get full after the beeping sound.

      Let us know if that help.
      Thanks
      Regards,
      Mike

  18. Vidas
    February 23, 2012 at 12:37 pm #

    Hi Mike again.
    There is some problem i think. My GS2 sometimes gets stuck, black screen, and cannot start i, until i take out the battery, and put again. But while that i get a call, which i don’t see and don’t hear, but after restart it is not in the list of callers. I suspected some programs, so i took some of them out which i suspected more. But it happened again. Now only Juice defender ultimate and Viber left, which work on background, apart stock programs. Could that be that JD is the problem? I am tryint to not use it for some days, see how it goes then. But i paid for it 5 euros.
    Also other question. I have a game Wordfreud Free. It is not in the Running services list or something, but it still gives me nitifications when i get internet on about my next move. How can this be, and why i don’t see it if it is working? And how to turn that off? Only by uninstalling?
    Android 2.3.4, SG2 (i9100)
    Thanks, Vidas

  19. Deedubya
    March 1, 2012 at 5:39 pm #

    Its bullshit they put out a great phone with a crap battery so we can actually use the features.

    • Mike
      March 5, 2012 at 8:25 pm #

      Hi Deedubya,

      It is not totally impossible. Hopefully we really get a better battery management OS in the upcoming ICS – Ice Cream Sandwich (Android 4.0.3).

      Regards,
      Mike

  20. March 17, 2012 at 7:39 pm #

    hi mike
    i own a sg2 since aug 2011.i updated it only yest.and my android version is nw 2.3.4.before update it ws 2.3.3.i heard th latest is2.3.6.i connected thru keis and its showing der is not software update.i even cheked for software updates in fone.setting-about phone-software updates.there also ders no software updates.am in oman and bought the phone from here.also after the update my msg skin is mising ano there is no option for scientific calculator in calculator app.it was there b4 the update.

    why am i not getting the updates for latest version of android.kindly help.thx in advance

    • Mike
      March 21, 2012 at 2:15 pm #

      Hi nitha,

      As what we have posted earlier, we expected Samsung to fully switch over for the ICS firmware update instead of the 2.3.6 version that most country yet to receive.

      So you could now expect to receive the latest Ice Cream Sandwich (Android 4.0.3) update instead of the Gingerbread.

      About the missing apps skin and option, we think it might be due to the firmware get corrupted on the previous update. So you might want to ask Samsung to get it fix for you or through the latest ICS update.

      Regards,
      Mike

  21. Hedge
    March 21, 2012 at 7:56 pm #

    I have disabled background data services and the battery is ok for 5 days…!!!! Before I had to charge it every day…!!

  22. Amkooy
    March 28, 2012 at 11:50 am #

    Hi,

    I have been reading your posts and you have been banging about using JD to save battery. I installed it on my SGS2 but I found it too complicated to configure(maybe I am not very smart). However, I found Easy Battery Saver app which is a little bit more easier to use. What is your opinion about EBS?

    Although both disconnect network in their smart modes which defeats the whole purpose of buying a smartphone.

    Cheers,
    A

    • Mike
      March 29, 2012 at 11:57 pm #

      Hi Amkooy,

      Thanks for your recommendation on the Easy Battery Saver. So far from the review, yes it definitely a good one especially with over 320,000 rating and over 230,000 rated it at 5 stars.

      We would really recommend it.

      Thanks for the great tips btw.

      Regards,
      Mike

  23. S2 user
    April 10, 2012 at 10:34 am #

    Hi Mike,

    I also Easy Battery Saver user…so far, i really recommended for those who love simplicity, just install and configure to intelligent mode. Same functioning as JD, i think.

    • Mike
      April 10, 2012 at 2:39 pm #

      Hi S2 user,

      Thanks for the info. We definitely recommend Easy Battery Saver to all the Android users due to its simplicity.

      Regards,
      Mike

  24. james
    April 15, 2012 at 3:56 pm #

    Hey there a little off the battery subject but i have a galaxy sW on vodafone in the usays (xeu) what does this mea and why and when will it get and updqte

    all the best

    • Mike
      April 17, 2012 at 6:55 am #

      Hi james,

      Could we understand what you mean by ‘usays’?

      Update for ICS? If the phone is attached to the carrier then you might have to wait until they officially release it. Anyway you could always call up the carrier to check up on that.

      Regards,
      Mike

  25. Kal
    April 28, 2012 at 6:25 am #

    Thanks for the info.. but geez, I might as well switch off my phone and use it only when I need it.

    • Mike
      April 28, 2012 at 8:23 pm #

      Hi Kal,

      Hopefully we get some real improvement in the battery life management in the upcoming ICS.

      Regards,
      Mike

  26. Yue
    May 16, 2012 at 7:06 am #

    Hi! i installed the juice defender and i read it automatically rooted my phone. i uninstalled it after few hours and at the start up there’s a warning sign. it all started when i installed the juice defender. how can i remove the warning sign at the start up? i got my fone 2 days ago.

    • Mike
      May 17, 2012 at 3:19 pm #

      Hi Yue,

      Look like you have rooted the phone? You could remove the warning sign by follow the instruction from the XDA Developer here.

      Regards,
      Mike

  27. Jess
    May 27, 2012 at 5:58 am #

    Hi mike

    I am just wandermg that if i charge my phone at evening and yhen take it out after like about 2 to 3 houres later my phone fully charged but when i wake up on the morning the charge is half even i didnot use it….
    Before it wasnot happening when i frist brought but now days it happens evryday…..
    I donot know whats happening
    can u please replaying fast about this matter
    thanks !!!!!

  28. Emmy
    July 8, 2012 at 9:40 pm #

    I have tried all the suggestions but still find that my phone battery wastes si quick I was told to buy a a battery with more voltage would that work

    • Mike
      July 11, 2012 at 12:39 am #

      Hi Emmy,

      Yes of course if you go for a bigger mAh battery for sure your phone would last longer but the cons point is that your phone might look bulky at the back.

      Anyway you could check out the listed battery pack from Anker 2200mAh Li-ion Batteries here.

      Regards,
      Mike

  29. hedi
    July 16, 2012 at 11:49 pm #

    i noted people struggling with battery issue with this smartphone. i’m sick with all of this. For samsung, why you built such phone like this with great feature if at the end of the day people have to turn them all off to save the battery???

  30. Mero
    August 8, 2012 at 11:05 am #

    Hey mike
    My phone is 1 month old. my phone was sent to me from china. I don’t know for sure but I think its the international version gt-i9110 (it says so in about phone under settings). I live in nepal. Now I try to update my phone to Ics but kies says no update available. I read that ics update is already available. How can I update. Plz help.
    Also I have problems with battery. thanks for your tips.I will try them. When in full charge it works well for up to 60%. Then it discharges rapidlyeven when idle. Every 5 minutes 1% reduces. I have read about battery re calibration and tried but no luck.any tips.
    Thanks in advance..

  31. pearl
    December 5, 2012 at 3:31 pm #

    Hi mike
    i just finish downloading the Samsung Kies but for some reason it won’t let me do the upgrade.This is the msg am getting “Your device’s current firmware version is not supported to update firmware via kies”.The other message says”current firmware version:PDA:L11/PHONE:L11/CSC:L11(TMB).So my question is what do i do pls help cuz am really getting frustrated with this battery fast draining thing.
    p.s.got this phone just 4 days ago and am already regreting

  32. Piotr
    January 9, 2013 at 5:20 am #

    Hej Mike
    Few days ago I finally got my S2 GT-I9100 Android 4.0.4
    and I’ve noticed something that no one actually mentioned here.
    In Settings on the bottom right above ‘About Phone’ there is something like
    {} Developer Options where I found option ‘Don’t keep activities’ described as “destroy every activity as soon as user leaves it” so I ticked that box.
    Second one is ‘Background process limit’ where I can choose from:
    standard limit
    no background processes
    at most 1 process
    at most 2 processes
    at most 3 processes
    at most 4 processes
    I ticked 3 processes and now when I clear RAM only few apps are closing.
    I’m testing this for the last few hours now. It is hard to say does it work or not,
    I will see how it’s gonna be in the long run but
    I guess this may help to save some battery.
    How do you reckon?
    Did anyone used these settings before?

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