[ARC][ROM] LT15i_4.0.2.A.0.42_Singapore_Generic - Xperia Arc General

This is Singapore Generic v4.0.2.A.0.42 (Android v2.3.4) untouched firmware.
Flash it using Flashtool.
Download it here.
Like it? Click THANKS .

Any feedback on battery life?
Sent from my LT15i using Tapatalk

superlimau said:
Any feedback on battery life?
Sent from my LT15i using Tapatalk
Click to expand...
Click to collapse
How do I know? , I updated this afternoon only

was hoping someone could shed some light and provide feedbacks.
Sent from my LT15i using Tapatalk

superlimau said:
was hoping someone could shed some light and provide feedbacks.
Sent from my LT15i using Tapatalk
Click to expand...
Click to collapse
8 hours gone and I'm left with 49%. With the standby estimation, I should be good to go through out the night. So I hope it should be the same as previous. Just note that I'm a moderate user .

have you tried using zergrush rooting this firmware?

elnitrox said:
have you tried using zergrush rooting this firmware?
Click to expand...
Click to collapse
My bootloader is unlocked. So I've root using this method.

elnitrox said:
have you tried using zergrush rooting this firmware?
Click to expand...
Click to collapse
Yes, I tried and successful
Sent from my awesome Xperia Arc

Any update on battery life?

superlimau said:
Any update on battery life?
Click to expand...
Click to collapse
Draining like hell. Can't even last for a day due to radio issue . The issue is there in .283 & .42.

i've not seen a fw that had great battery life...
on cm041, miui the drain was there as well....
what is wrong here....

Slightly off topic: I'm getting about 8-10 hours with pretty heavy usage on CM7.1.0.1. When I leave it on standby, I have about 10% drain after about 8-9 hours of standby, with the occasional time check.
And back to topic, thanks for having the generic SG ROM here, I might go back to this as I have some issues with Wi-Fi tethering on CM7.

Just to add on, i had previously used the .283 version, battery was good. Then i started to root and unlock bootloader, and installed the doomlord v12 for .283, battery drain about 10-15% overnight in 6hrs. Days back, I had flashed the SG ROM .042, the battery was good again, averaging 3% overnight. Its proven to be good.

3% drain overnight is impressive. Which kernel are you using? Stock .0.42?
Sent from my LT15i

superlimau said:
3% drain overnight is impressive. Which kernel are you using? Stock .0.42?
Sent from my LT15i
Click to expand...
Click to collapse
Same experience as me. But I turn off the data connectivity at night.

As far I used (I used almost all the versions, I guess) the .368 firmware is the best of battery usage. I usually get 24-26 hrs of usage (I would say pretty heavy, with all guns up... [BT, WiFi, GPS]) out of it, compared to this .42 firmware, I can't cross 15 hrs mark!!!
But from what I experimented, I understand that it's the baseband that is giving problem. I notice that there are many users from SG here and specially from SingTel, if you guys observe closely, the network coverage is poor with this firmware compared to the previous .145 firmware. So I'm planning to flash back the old baseband on to the new firmware and give a try whether the battery life improves together with the network coverage.

How do I know which firmware I am using?

Ok, I am on .0.42 world generic now. Let me monitor and revert.
Sent from my LT15i

I'm on stock kernel, and i'm using Juice defender Ultimate, let it auto manage my battery-drain stuffs, so i need no worry on forgetting to switch off any batt drain functions. I"m not sure if the SETCPU profiles works, I just enable the profile when screen off I set to 245MHz max 122MHz min. Mine is M1 set.
Kinda tired of flashing custom rom/kernel.. there's always some problem with the features, i.e. 0 batt, wifi cannot connect, batt drain etc etc.. stick to stock for the moment.. Root hp is good enough to play with some stuffs for the moment. Especially ad free.

Personally I don't like any programs that turns off my data to save the battery. It defects the purpose of having data plan moreover, you miss the updates (I've tried lot of applications like Juice defender and I experience the same issue...missing the updates, even the Whatsapp messages are not delivered to you on time).
Now I've flashed the old baseband (from UK .368 firmware) on to the latest firmware (.42 SG) for testing to see how is the battery drainage

Related

Does any Indian has BB .58 Running?

I am new to this stuff and i have heard that BB 58 causes a battery drain.Can any Indian with BB 58 can confirm this?
Thank you,
Regards
It will work go for it
Sent from my X10 using Tapatalk
I'm on BB 58 and Wolf Break ROM V5. I don't see any battery drain. I'm getting 1.5 days with moderate usage. I used to get 1 day with stock 2.1 SE ROM. So I feel the battery life has improved for me. I didn't install any themes. But again battery drain is upon the usage of the device, I use lot of Edge though for surfing.
sajjad4joy said:
I'm on BB 58 and Wolf Break ROM V5. I don't see any battery drain. I'm getting 1.5 days with moderate usage. I used to get 1 day with stock 2.1 SE ROM. So I feel the battery life has improved for me. I didn't install any themes. But again battery drain is upon the usage of the device, I use lot of Edge though for surfing.
Click to expand...
Click to collapse
I did not feel any diffrence in battery when using edge or 3g.
It's d best baseband uptill now in terms of longer battery life... go fr it...
Sent from my X10i using XDA Premium App
Do i have to completely format or flash to install new baseband ??
i am running BB .58 ,no problem,great battery!!
I am on Orange France
I live in paris
but i am Indian
hope it helps
Running baseband .58 with wolf's v05 and use WiFi continuously and still go a day. Take the plunge, if you don't like it can always go back...
BTW:- Country of residence most probably does not have anything to do with it...
I got BB .58 now running for almost 24 hours on my x10! It's really amazing! My battery life has doubled.
I have BB58 ever since it released and have used it with wolfbreak's rom. Battery drains according to usage. I dont see any difference at all.
One question though, Why should an indian confirm? why not others? You think the radio signals in India are thicker than the other countries because of which the battery drains ? I can understand that the operator or country plays important role, but not on the battery drain. Or you think its because of our politicians?
Khimera said:
I have BB58 ever since it released and have used it with wolfbreak's rom. Battery drains according to usage. I dont see any difference at all.
One question though, Why should an indian confirm? why not others? You think the radio signals in India are thicker than the other countries? Or you think its because of our politicians?
Click to expand...
Click to collapse
I think that the Radio in India is even worse then in The Netherlands
Yeah the radio signals.I dont know why but my battery gets heated up with bb58on charging.I have At&t x10 and currently running bb54 wolf rom

[CLUE] 2.3.4 GRJ22 Battery Drain

Hi,
I have a 9023 and performed the manual upgrade to 2.3.4. One thing I've noticed was a massive battery drain with the same previous usage.
Using Astro I've found that the process d.process.media was constantly using nearly 90% of CPU.
So, I have restarted and the process seems to have stop.
As I noticed some users also complained about the battery drain after the update. Please check if this process is also being crazy with you.
Actually, same thing happens on my 2.3.3 when i use a picture in usb storage as wallpaper. if i use system wallpaper, then problem goes
Sent from my Nexus S using XDA App
I9020a here on manual 2.3.4 with the same battery drain. I had cell standby eating up the bulk of it. I figured flashing kb3 would fix it.
Sent from my Nexus S using Tapatalk
I would like to point out that the above process will not appear in battery usage screen. Also I have the same Cell Standby as top eater.
From what I see, battery usage is now more inline with what I had in 2.3.3 GRI40.
Still I'll charge it overnight ans see how it manages tomorrow during the day.
I can't find that process in my list. However, so far since the update my battery does appear to be draining faster. Im quite a light user and from one charge can get 2 days worth of usage (ie, charge tonight, use thursday and friday and charge friday night). I will see if this can still be acheived. Wont be happy if not.
Im trying 2.3.4 with kb3.
Rotellian said:
I can't find that process in my list.
Click to expand...
Click to collapse
Using Astro file manager: Menu -> Tools -> Process Manager -> Processes tab.
My process id (pid) is 336. Yours may vary.
I think I have identified my issue. But still it could be a good idea to find if any process is misbehaving.
DoomFragger said:
Using Astro file manager: Menu -> Tools -> Process Manager -> Processes tab.
My process id (pid) is 336. Yours may vary.
I think I have identified my issue. But still it could be a good idea to find if any process is misbehaving.
Click to expand...
Click to collapse
Cheers, found it, different pid. not using anything at the moment, and none of the other processes seem to be msbehaving, Will have to keep an eye on the usage though.
Initial findings not good. Lost 7 percent whilst asleep (~1% for every hr). Im pretty sure on 2.3.2 i used to lose 2 or 3%. How difficult it is it to role back to an earlier version. For me its quite important to be able to get 2 days usage out of it. One of the things ive been most impressed with.
Rotellian said:
Initial findings not good. Lost 7 percent whilst asleep (~1% for every hr). Im pretty sure on 2.3.2 i used to lose 2 or 3%. How difficult it is it to role back to an earlier version. For me its quite important to be able to get 2 days usage out of it. One of the things ive been most impressed with.
Click to expand...
Click to collapse
Flash 2.3.2 full ROM to downgrade or restore 2.3.2 nandroid (you might want to downgrade radio as well, nandroid doesn't include radio).
My battery life is back to normal with kb3 radio.
Sent from my Nexus S using Tapatalk
i noticed after the upgrade to 2.3.4 + netarchy kernel the battery life is amazing! 2 days and still at 53%
normally by now it would be down to like 10% using the previous ROM
hrm do you use custom UV?
Rotellian said:
I can't find that process in my list. However, so far since the update my battery does appear to be draining faster. Im quite a light user and from one charge can get 2 days worth of usage (ie, charge tonight, use thursday and friday and charge friday night). I will see if this can still be acheived. Wont be happy if not.
Click to expand...
Click to collapse
How is your battery life after 2.3.4, testing complete?
I use stock 2.3.4. After 1.5 days of use there is still 55% of my akku left.
Sent from my Nexus S using XDA App
I think that my problem is the radio too. Could you please tell me where I can download kb3 so I can flash it? **edit.. it ok, I found it http://forum.xda-developers.com/showthread.php?t=975105
I will try to flash it and see if it works for me. Battery life for me has definitely gone down after 2.3.4
Trying to upload a picture. This is overnight. The Cell standby is ridiculous. Lets see how it goes.
Could you please not upload anymore screenshots without writing down some more details ?
Ok, you have 34% display and 31% cell standby, but how do we know if display time was 5 mins and not 2 hours ? Or if it was at 10% brightness or at 100% brightness ?
You should either write down all the details to the story, or don't write them at all. That includes uploading useless screenshots as well.
robstunner said:
I9020a here on manual 2.3.4 with the same battery drain. I had cell standby eating up the bulk of it. I figured flashing kb3 would fix it.
Sent from my Nexus S using Tapatalk
Click to expand...
Click to collapse
Hmmm. I'm running a I9020a also and no battery drain.
Sent from my Nexus S using XDA App
I also have faster speeds than I previously had with kb2 & kb3. Battery drain seems normal with faster connectivity.
Sent from my Nexus S using XDA App
Cell standby is fixed tenfold with my 2.3.4 i9020a on kb3. I personally saw no improves connectivity with kd1
Sent from my Nexus S using Tapatalk

battery drain on jvp please post here

i would like to know if this problem continue on jvp.
it will be much easier to see it in one post instead of following it on 3 different post.
No battery drain for me. I did 34 hours with one charge.
Definitely the best gingerbread rom for me.
Sent from my GT-I9000 using Tapatalk
I also don't have any draining problem after playing gameloft games without restart for almost 2 days.
Sent from my GT-I9000 using Tapatalk
thzone said:
No battery drain for me. I did 34 hours with one charge.
Definitely the best gingerbread rom for me.
Sent from my GT-I9000 using Tapatalk
Click to expand...
Click to collapse
do you have auto rotation on?
Sent from my GT-I9000
I have absolutely no battery drain, 10% lose after 1 day (with playing calls etc included), however I've applied my little solution, deleting all the suspicious system apks
Definitely no battery drain here. Auto-rotation and GPS is ON all the time, played orientation-based and 3d-intensive games multiple times, used Google Maps (just had a nice tour today here in Japan )
By the way I haven't charged yet since I installed this rom 2 days ago.
samsung finally solved it or you did not have the problem before?
same for me right now i am at 1day and 8 hours with wifi on the whole time 3 hrs of calling and texting ,few games,radio etc i always have had the battery drain in the previous roms so this one is looking good
No drain here. With one charge phone now survives two days of intense use.
(stock JVP, dark core kernel, stock bloatware removed, ext4 lagfix)
I surely had it before that is why I started this infamous thread: http://forum.xda-developers.com/showthread.php?t=1039696
No unusual drain here.
In fact this is the best battery efficiency out of any rom (except stock 2.1) I've used. Down to 64% after 24hrs with pretty low usage, which is subjective. To put it in perspective I rarely got past 24hours with typical usage on any 2.2 rom.
94kram01 said:
I have absolutely no battery drain, 10% lose after 1 day (with playing calls etc included), however I've applied my little solution, deleting all the suspicious system apks
Click to expand...
Click to collapse
Wath is this suspicios system apk?
Sent from my GT-I9000 using XDA Premium App
Jeez, unless everyone in this thread is one person, i think we just might have a winning firmware.
Sent from my SGH-I897 using Tapatalk
Android System at 18%, Android OS at 4%.
39min on battery and it went down 2% with nothing running, only wifi on, screen off most of the time.
Doesn't look good for me. About to calibrate battery, but just letting you know.
ghenn4 said:
No drain here. With one charge phone now survives two days of intense use.
(stock JVP, dark core kernel, stock bloatware removed, ext4 lagfix)
Click to expand...
Click to collapse
what apps do you class as stock bloatware ? as im going to do the same as you !
p34nuTT said:
what apps do you class as stock bloatware ? as im going to do the same as you !
Click to expand...
Click to collapse
Me too!
ghenn4 said:
No drain here. With one charge phone now survives two days of intense use.
(stock JVP, dark core kernel, stock bloatware removed, ext4 lagfix)
Click to expand...
Click to collapse
Could you also tell me how i get from Miui 6.1 to your firmwarebuild and which steps i have to follow?
Thanks in advance =)
p34nuTT said:
what apps do you class as stock bloatware ? as im going to do the same as you !
Click to expand...
Click to collapse
Well, it depends on personal preference , but for me bloatware is software that I will never use, or use someting else instead of the preinstalled one, for exaple : layer,mini diary, write and go, thinkfree office, stock audio player, swype, stock gallery app, samsung apps, touchwiz+widgets, live wallpapers,dual clock, etc.
Of course you need root, and titanium backup to remove, or you can delete the apk`s manually with root explorer, just don`t remove crucial stuff. You can search on google, or in the forums for a list of files,that can be safely removed.
Andeby said:
Android System at 18%, Android OS at 4%.
39min on battery and it went down 2% with nothing running, only wifi on, screen off most of the time.
Doesn't look good for me. About to calibrate battery, but just letting you know.
Click to expand...
Click to collapse
I had it also, but after a few hours it stabilized. Give it some time.
Sent from my GT-I9000 using Tapatalk
so thats means on JVP battery life is very good isn't ? because i never heard any complaint on this firmware.
mainmain820000 said:
so thats means on JVP battery life is very good isn't ? because i never heard any complaint on this firmware.
Click to expand...
Click to collapse
For most it is amazing.
For me it has been so-so but I am letting it drain to calibrate now. Maybe it just looks like it's so-so.

Battery life on custom roms

Hey guys im keen to know your experiences with the various custom roms out there.. I have flashed villianrom today as my first custom along with various kernals but have had constant drain issues..
Looking at my battery awake stats it seems as if it never sleeps :-(
Sent from my GT-I9100 using Tapatalk
JAG131990 said:
Hey guys im keen to know your experiences with the various custom roms out there.. I have flashed villianrom today as my first custom along with various kernals but have had constant drain issues..
Looking at my battery awake stats it seems as if it never sleeps :-(
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
Screenshots showing battery usage and more importantly screen on time.
I don't have Villian ROM but from reading the comments on thst thread this is one of the best as regards battery drain so im amazed you experience high drain.
I run Cognition and am happy with this.
Sent from my GT-I9100 using Tapatalk
You can see it just gettin eaten away screen off doesnt stop drain note the awake vs.screentime i have tried 4 kernals to no avail
Sent from my GT-I9100 using Tapatalk
Put on watchdog and let it run in the back ground and see if it's any app or widget misbehaving.
Thanks trying now
Sent from my GT-I9100 using Tapatalk
Just read in another thread that having motion sensor enabled causes this.
In my case ... Absolutely confirmed!
Very weird
Sent from my GT-I9100 using Tapatalk
JAG131990 said:
Just read in another thread that having motion sensor enabled causes this.
In my case ... Absolutely confirmed!
Very weird
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
That is very very weird!!
I was on Villain too,1.4 to be exact...drains as well,now on Litening 2.2,after resetting batt stats,best so far screen on time almost 5 hours, using mostly wifi..but with 3G,I get around 4hr 30mins...I usually leave my wifi on all the time at home,and switch on data only when I leave...
literom 2.2 doubled my battery life (no exageration) coming from stock rom. impressive.
Bus Driver said:
I was on Villain too,1.4 to be exact...drains as well,now on Litening 2.2,after resetting batt stats,best so far screen on time almost 5 hours, using mostly wifi..but with 3G,I get around 4hr 30mins...I usually leave my wifi on all the time at home,and switch on data only when I leave...
Click to expand...
Click to collapse
That sounds really poor performance..
Sent from my GT-I9100 using Tapatalk
Some extended idling:
Cognition 1.13 with CF KG1 Kernel, Phone undervolted as in screenshot + GPU @ 750mV for both states.
Android OS still taking 1h15m CPU time in that screenshot, which, in my experience in this case is I *think* because of Skype running all the time there. Also Trillian connected to multiple services running constantly with Wifi.
I'm using Cognition 1.15 with modified 1.4 ninmphetamine kernel, very good battery life so far! (probably the best compared to villainrom and litening rom for me)
Having fixed my awake issue my battery life is reasonable but i expected betted with villainrom + nenphetamine custom + undervolt.
We need to guage some good comparisons id like to get an extended idle test dont know if i can leave my phone for that long. LOL
Btw How did you undervolt gpu?
Sent from my GT-I9100 using Tapatalk
I would stay away from these newer kernels like Nephetamine until they actually mature. I alslo tried some other custom kernels and they kinda drained the battery way more. So I'm sticking to a plain kernel like CF for the moment. Also seems better to stick to the normal ondemand governor.
Undervolting GPU via Tegrak Ultimate, it's worth it imho, especially since I basically shaved off 25% voltage without any issues.
JAG131990 said:
That sounds really poor performance..
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
How many hours are you getting if 4:30 and 5 hours screen display on time is poor performance? Please enlighten me...
I too flashed Villain rom (KF2) 2 days back and after flashing I get more battery drain compared to KF2 stock rom. android os is consuming 60% of battery.
BTW How can i see that graph thats shown above? is there any app for that
galaxyII said:
I too flashed Villain rom (KF2) 2 days back and after flashing I get more battery drain compared to KF2 stock rom. android os is consuming 60% of battery.
BTW How can i see that graph thats shown above? is there any app for that
Click to expand...
Click to collapse
Just tap on the grey part,where it states the hours and minutes on battery, the graph will be expanded and shown...
I will post screenshots i took this morning 9 hours standby wifi off, background data off, auto sync off, everything else on, stock rom KF3, no freezing of anything
the result?
1%!! loss over 8.5 hours

s2 in jb 4.1.2 battery life

hi. I am o supernexus build 5 wth siyah kernel. I got round 7 hiurs if heavy usage on gs2. I've done facebook, viber, internet using stock browser and downloading around 200mb zip file. what can you say about this battery life. its my first time to use gs2 and I am using 2000mah. the battery life seems pretty bad in my opinion. I will attach screenshot of my hardware info, battery use and screen time. hoping for any opinions out there
Sent from my GT-I9100 using xda app-developers app
I think is good , for me with stock battery (1650mah) i get 3 hours and 30-40 minutes (screen on time), wifi on , screen brightness auto
Send from my SGS2 I9100 with HassanROM and latest DorimanX 8.xx kernel
I think the battery life should be better with a 2000mah battery..
Is the battery properly callibrated??
krazy1101 said:
I think is good , for me with stock battery (1650mah) i get 3 hours and 30-40 minutes (screen on time), wifi on , screen brightness auto
Send from my SGS2 I9100 with HassanROM and latest DorimanX 8.xx kernel
Click to expand...
Click to collapse
oh really that means I should be getting better because I am on 2000mah but it seems not. Im not sure what's the problem if its the battery or the kernel. I also used an ICS firmware from Samsung I9100TDULP4. I don't know if that affects the battery life
Sent from my GT-I9100 using xda app-developers app
peRFect! said:
I think the battery life should be better with a 2000mah battery..
Is the battery properly callibrated??
Click to expand...
Click to collapse
Well I dont know if it is properly calibrated. By the way I got this unit from my uncle so I am not really sure if the battery is still good. How do we know if its still good. I dont know how old is this battery. How do we calibrate the battery and does the room affect this battery life?
Sent from my GT-I9100 using xda app-developers app
by the way I just installed this rom A week ago. The battery takes 3-4 hours to be charged using my xperia charger
Sent from my GT-I9100 using xda app-developers app
I have suggestion for you , go to miuiandroid.com and download the latest build , install Siyah Kernel v6.0b5 with that and you will love the battery timing on that (Trust me, i am using it right now)
Mr.KiLLeR said:
I have suggestion for you , go to miuiandroid.com and download the latest build , install Siyah Kernel v6.0b5 with that and you will love the battery timing on that (Trust me, i am using it right now)
Click to expand...
Click to collapse
you mean downloading the miui rom? yeah definitely I'll give it a try after slimbean which I will try if I see no improvement on the bAttery. Has anyone had 2000mah and siyah kernel with supernexus rom build 5? What are your timings?
Sent from my GT-I9100 using xda app-developers app
infinitylook said:
you mean downloading the miui rom? yeah definitely I'll give it a try after slimbean which I will try if I see no improvement on the bAttery. Has anyone had 2000mah and siyah kernel with supernexus rom build 5? What are your timings?
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
I have tried Slim Bean too and after trying that i came to Miui Rom
anyone who have experience with 2000battery
Sent from my GT-I9100 using xda app-developers app
anyone who have experience with 2000battery
Sent from my GT-I9100 using xda app-developers app
right now I am using the original 1650 mah stock battery of s2. I've been doing a lot of file transfers as of this moment via e.s. file explorer and currently I am transferring almost 13gb of data via wifi from my laptop. its been awake for 4 hours now with screen time of 1 hour and 30min. e.s. file explorer is keeping the system awake for 3 hours. I did some facebook and viber chats. screen at 35% brightness.. do you think this is the expected life of the stock battery? I am fairly new to samsung and I found the battery life to be disappointing even with the stock jelly bean rom from samsung. I will post some pics of the battery stats and cpu stats from cpu spy. another thing though. is there a good app from the market where I can test my two batteries and compare them? thank you
Sent from my GT-I9100 using xda app-developers app
infinitylook said:
right now I am using the original 1650 mah stock battery of s2. I've been doing a lot of file transfers as of this moment via e.s. file explorer and currently I am transferring almost 13gb of data via wifi from my laptop. its been awake for 4 hours now with screen time of 1 hour and 30min. e.s. file explorer is keeping the system awake for 3 hours. I did some facebook and viber chats. screen at 35% brightness.. do you think this is the expected life of the stock battery? I am fairly new to samsung and I found the battery life to be disappointing even with the stock jelly bean rom from samsung. I will post some pics of the battery stats and cpu stats from cpu spy. another thing though. is there a good app from the market where I can test my two batteries and compare them? thank you
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
To callibrate battery..first completely drain the battery to about 5%, then charge the phone non stop without disturbing it till 100% and immediately remove the charger..again fully drain the battery and follow the above steps and u will get better battery life after a few cycles!
About roms..battery life does differ from rom to rom...i suggest u could check the custom kernels packed with zzmoove governor, ithat particular governor definitely improves the battery backup!
And in the above post es file explorer is eating ur battery..for that u should download greenify and hibernate apps continuously running in background!
great. I will follow your steps. one more thing. how can I know if the battery is still good or if its still holding the proper charge its suppose to have? thanks
Sent from my GT-I9100 using xda app-developers app
best I can get is about 3 days standby in jb stock.
I use the 2000mAh battery is primary battery.. no big surprise to expect here, capacity is just 21% more by construction...
With wifi on, JB burns in my case about 3% in IDLE.. stock kernel.. and about 5% in 3G mode, IDLE.. then battery drains more or less fast depending on screen on, phone calls etc. I use the phone extensively for work (email sync & replies, phone calls, sms and voip) and i have to topup the battery twice or trice a day!
Have tried various custom kernels with all sort of magic to reduce battery drain.. more or less effectively.. sometimes with less stability.
Right now trying out latest dorimanx 8.27.. seems thatn IDLE with WIFI on drains around 2% per hour.. better than stock.. still not quite awesome
I miss the GB battery life.. but JB is so beautiful in comparison, I cannot go back!
jmarcnms said:
I use the 2000mAh battery is primary battery.. no big surprise to expect here, capacity is just 21% more by construction...
With wifi on, JB burns in my case about 3% in IDLE.. stock kernel.. and about 5% in 3G mode, IDLE.. then battery drains more or less fast depending on screen on, phone calls etc. I use the phone extensively for work (email sync & replies, phone calls, sms and voip) and i have to topup the battery twice or trice a day!
Have tried various custom kernels with all sort of magic to reduce battery drain.. more or less effectively.. sometimes with less stability.
Right now trying out latest dorimanx 8.27.. seems thatn IDLE with WIFI on drains around 2% per hour.. better than stock.. still not quite awesome
I miss the GB battery life.. but JB is so beautiful in comparison, I cannot go back!
Click to expand...
Click to collapse
Does Jb stock for you has better life or does custom rom have more? I really like the custom roms but as per observation stock rom offers more battery time. Right now I just reverted to stock rom i9100xwlss. Touchwiz really sucks. Supernexus is really beautiful but offers less battery (but I will have to try yet their latest build). Also one of the reasons for going back to stock is the camera shot quality. Custom roms really have poor camera quality. I guess when it comes to lowlight shots the stock roms are best. So much for that. Does stock rom offer more battry for you or custom rom does?
Sent from my GT-I9100 using xda app-developers app
SGS2 Battery Life on 4.1.2
infinitylook said:
hi. I am o supernexus build 5 wth siyah kernel. I got round 7 hiurs if heavy usage on gs2. I've done facebook, viber, internet using stock browser and downloading around 200mb zip file. what can you say about this battery life. its my first time to use gs2 and I am using 2000mah. the battery life seems pretty bad in my opinion. I will attach screenshot of my hardware info, battery use and screen time. hoping for any opinions out there
Sent from my GT-I9100 using xda app-developers app
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Below is a reply in some other forum by Samsung offcials regarding a specific method to Hard-Reboot your phone after a Firmware update: This method particularly helped me improve the battery life on SGS2 after 4.1.2 update.
"1. I’m sorry you are having issues with your device after upgrading the firmware. I can understand your frustration about this.
Old systems settings can be left on the phone after an update occurs, which is why we usually recommend a full factory reset after updating. If this isn’t done your device may begin to give false readings from system resources, or experience technical problems, which may explain the issue you are having.
We would advise on doing the following, which is designed to reset the settings on your device. Please back up your device using Samsung KIES before you do this.
1) Remove the battery for at least 40 minutes, put the battery back in and allow it to fully discharge. Afterwards, perform a full battery charge with the device turned off. Do not interrupt the charging process.
2) After the battery is fully charged, we would like you to perform a full factory reset, which can be done via Settings > Backup > Reset.
This process will reset your device, remove old system files that are no longer needed and enable your device to operate normally again.
Please let us know if your device continues to experience problems after the reset so we can investigate further.
If you require any further assistance, please contact Samsung again and we will be more than happy to help.
Kind regards,
Stewart
Online Support Team
SAMSUNG Customer Support Centre
infinitylook said:
Does Jb stock for you has better life or does custom rom have more? I really like the custom roms but as per observation stock rom offers more battery time. Right now I just reverted to stock rom i9100xwlss. Touchwiz really sucks. Supernexus is really beautiful but offers less battery (but I will have to try yet their latest build). Also one of the reasons for going back to stock is the camera shot quality. Custom roms really have poor camera quality. I guess when it comes to lowlight shots the stock roms are best. So much for that. Does stock rom offer more battry for you or custom rom does?
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
Actually I only use stock JB.. and trying to get it last longer with some custom kernels.. recently trying snapdragon rom, which is stock JB as well but with some S4 apk made compatible with S2... tried some time back omega, vanila rootbox and some other android builds for s2.. but was facing few stability issues / bugs and also missed some features that i was getting from stock rom.. so i gave up with these... now just aiming at stability and if possible battery endurance.. but not at the cost of stability.

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