core disable, 30 Jun 2013I've got the same battery problem. I'm considering install app to manage the core.
LGGearB... morehi i prefer quadgearbox it just disables the 2 cores and leaves the other 2 running on 1.5ghz.
this keeps everything smooth and stil you have a gain in batterylife.
the problem from not being able to turn the 2 cores back on lies within some android apps but is easy to get arruond.
the problem excists because some apps keep the cores awake for to long this means as the cores are actrive you cannot swotch the other 2 cores on as a ap is active.
if you really want or need to (which i cant immagine) turn the 2 cores back on just reboot and disable all apps trou application manager> active apps and turn on the 2 cores.
or just tap the turn back on button a few times it will turn back on ive done it many times to test.
the only disadvantage is you cannot downclock the cores but in my opinion downclocking is bad.
the higher mhz the cores run themore power they consume and to my knowledge the power preformance ration isnt linear.
this means that if at 500 mhz the core uses 1 watt on 1500 mhz the core doesnt use 3 watts but more like 3.5 watts (dont know the exact numberts its a example).
this makes having 2 cores active the wiser choice because you can run 2 cores @750mhz for the same task and use less power.
unless you ofcourse underclock a LOT like a 800 mhz cap on both cores then its usefull but im not sure the phone stays smooth then.
Help me please.
I bought this phone about a month ago.
I have some problems with it now.
First, sometimes when someone calls me even though their names are already saved in my contacts, names don't show up! And you can see just the number. But when I look the call logs(history)I can see their names.
Second is since my phone hit on the ground(but it wasn't serious and it was covered with protector)sometimes when I'm not using it light turns on and the lock screen appears and again it turns off!! I just look at it without any single touch. I thought it might be because of antena or network going off and on so I put it on the flight mode but it kept happening again.
also I'm not pleased with battery life.
I"ll appreciate any help in advanced. Let me know please if you know the reasons and whether they are fixable or ...
I've got the same battery problem. I'm considering install app to manage the core.
LGGearBox or quadgearbox, which one is better. I found someone saying they can't get other cores back when disabled, and others talking about even factory reset the core speed wouldn't return to normal. will these damage the cpu? or brick the phone?
I really hope you can give me some experts advices.
Thank you guys.
I have a big problem in downloading anything from the internet , i even can't download any application from google play store , it always stuck on downloading message without real download , can anybody help me please
4X HD User, 29 Jun 2013Yes, battery drains faster even if we dont use phone, when we use its 2 -3 % drain per minute2/3% per minute is absurd i get 4 hours use time out of my phone which means no more then 0.41 % per minute and i mostly use it for whatsapp or browsing.
i do have 2 cores dusabled but that only gave me 45 minutes extra at best.
you can download the app to disable 2 cores here :
youl barely notice a difference in preformance.
but the main thing to do is manage your phone dont be lazy.
-manualy close apps before going to bed (slide them away and close them under applications)
-slide apps and close them when you dont use them for extended time.
-if you use apps in the morningto drive to work or whatever when you arrive take the time to disable it in apps again maps is a BAD app only activate when needed but best is to download a alternative like synergic.
-dont download apps with adds go for alternatives or the paid versions, apps with adds download net adds all the time if they run in the background which nog only uses your 3g limit but also soaks energy.
-dont wait for the screen to time out press the button if you put it away.
-get rid of the stock browser and use chrome (do NOT update to the latest version of 22 may tho its bugged for tegra3 devices google messed up.
-get rid of the facebook app and make aa shortcut on your desktop the facebook app drains battery you wont get notifications but the battery gain can be great.
-if you have cache cleaners get rid of them cache prevents you from having to reload data and recalculate it which saves not only 3g data but also cpu time which = battery life.
-get rid of task killers they are useless and evil they kill apps that android boots up automaticly again anyway which results in used battery life for loading the app used battery life for killing the app and this goes on in a circle.
-dont use battery/wakelock analizers permanently they are evil battery drainers as they monitor the battery constantly the apps constantly uses resources.
-get rid of apps that stay active in the background if they dont need to (mostly games).
-if you dont care about goole+ disable it its a battery drainer.
if you do all this and do it correctly you will greatly extend the battery life but as said it comes with compromises.
if you want to use some of these apps realize it costs battery life.
the final solution is buy a mobile battery pack if you but a 10.000 mah pac you can charge your battery 4 times a day from the pack giving you even in worst case scenarios 8 / 10 hours use time.
Anonymous, 29 Jun 2013i think the Nvidia Tegra 3 is so badly designed. i disable the some preloaded apps. when scree... more15-20% in 10 min is IMPOSSIBLE period.
the tegra 3 design is just fine its just a fact that quad cores eat a lot of power tey are afterall quad cores they should use 4x more then a single core.
but you get preformance in return.
chats the choice you made when buying this phone if you need superious battery life buy a old xperia arc 1ghz single core they last quite a bit longer but they will lag and stutter all over the place and cant handle the pretty HD screen smoothly.
everything comes with compromises power usage is the compromise of current qquad cores and this is unlikely to change anytime soon ad the new a15 cores only suck up more and more power at higher mhz.
but if you use 15 or even 20% in 10 minutes id do a hard reset and get rid of some crap as something is wrong. even when gaming 2 hours should be possible which means no more then 8.3% drain per 10 min.
Anonymous, 29 Jun 2013i think the Nvidia Tegra 3 is so badly designed. i disable the some preloaded apps. when scree... moreYes, battery drains faster even if we dont use phone, when we use its 2 -3 % drain per minute
i think the Nvidia Tegra 3 is so badly designed. i disable the some preloaded apps. when screen off, the cpu switch to the fifth core, battery usually 0.5-1% per hour. however when running some app even surfing the internet when screen set to 20% brightness, sys monitor show tegra fired 4 cores up and eat battery like hell. 10mins 15-20% battery is gone.
my note 2 with bigger screen, and set @ 50% brightness, surfing net. 10mins usually less then 5% battery is consumed. sys monitor shows only 1 or 2 core is used.
pino, 28 Jun 2013are you 2 sure you have the mp3's in the correct folder on the sd card (NOT external sd card) ?I had only transfered my BFs ringtone to the internal storage, that's why I proposed them this solution. When I upgrade to V10H I'll choose ringtones for other people too, but now only needed him to have a special one
AnonD-141228, 27 Jun 2013I think I might know what causes the issue, not really how to fix, but a workaround. Your pho... moreare you 2 sure you have the mp3's in the correct folder on the sd card (NOT external sd card) ?
diogo, 27 Jun 2013I've gone back to ICS.
My problems with the JB update were:
.Really bad battery duration.
.... moresadly it seems lg choose to boot up with everything preloaded. not my choice sadly.
id prefer to boot with as little as possible and make us choose what should start on boot but no dev seems to agree as its still not possible in any rom even tho android is capable of it.
AnonD-158526, 24 Jun 2013I don't have any help for you but YES I have the exact same thing with the ringtones, drives m... moreI think I might know what causes the issue, not really how to fix, but a workaround.
Your phone might be thinking the Memory Card is being removed.
Try adding the mp3 you want to the ringtone folder in the phone memory. should work,
I removed the MC to try to update the phone (had a problem while trying to update, but, gonna try again later, as soon as I'm answered at XDA if I have to do factory resets or not), when I turned it on again, my BF\s ringtone was saved due to being stored on thehpone, but my general ringtone returned to LG original, even if the MC was back on the phone.
I've gone back to ICS.
My problems with the JB update were:
.Really bad battery duration.
.phone slow as hell.
.erratic in some functions such as lock/unlock screen.
.it overheats even more (just by having the screen on).
.more RAM consumption. (it's funny cause I also have a note 2 with JB and it consumes less ram than this phone with the same JB, and believe me the note 2 has a lot of functions)
I experienced all of this only with stock apps installed.
Anonymous, 26 Jun 2013hi everybody. i want to downgrade from the firmware 20a JB to ics. i just wondering if ... morehttp://forum.xda-developers.com/showthread.php?t=2179126
i want to downgrade from the firmware 20a JB to ics.
i just wondering if it would be the same way as flashing using the LG FlashTool and kdz files?
since i'v got both ics and jb KDZ files in my pc, and youtube method can't download the file.
appreciate for your experience.
AnonD-158464, 24 Jun 2013Dear Friends, have anybody experienced screen flickering on this device? I was playing a ga... morethe same thing happened to me sooo many times when i have a phone call the screen turn itself off .... N.b : that happened since i updated it to jb officially
HK, 25 Jun 2013Hello, Pino.
I'm a newbie to this forum. I'm from Hong Kong. In Hong Kong and Taiwan region... morethe battery life will stay about the same so for that its no point updating.
the camera will be better in v20 then it is in v10E (only v10F en v10H are the good ones camera wise)
however JB does have some other buggs that are furstrating and it can preform a little slower some of the time but if your ok with that and thnk camera is more important go for it.
if your a bit more advanced and are willing to take the risk you could install a v10H from europe or another country that has it.
this is how :
i cant link you the roms so you will have to find those yourself.
I'm a newbie to this forum. I'm from Hong Kong. In Hong Kong and Taiwan region we only got 10E, NO 10H of ICS. 10E seems still have some bugs.
Can you please tell me whether I should update to the 20B JB to improve the photo and video capture, and battery life?
Thanks a lot.
AnonD-158464, 24 Jun 2013Dear Friends, have anybody experienced screen flickering on this device? I was playing a ga... moreIt's simple the game doest have the setting to keep the screen on just in the settings keep screen timeout never then play the game and then turn it to 1 minute