Best ROM+Kernel for Battery Life - Epic 4G Q&A, Help & Troubleshooting

Ok guys so my brother in law has the EPIC 4G and im the one who flashes roms and such for it and has rooted it cuz he doesnt know how to do that stuff
so i am not usually caught up with the new roms and kernels for the EPIC 4G cuz i have an EVO 3D
anyway
what is the best ROM and Kernel combo out at the moment to get the best battery life for this phone
ive flashed MIUI and ive tryed CM7 for him and he says neither have been providing him a great battery life
im assuming its because of the current kernel hes using (havent flashed a new one in a while) or it could be because hes still using the stock battery which isnt all that great.
so if anyone can provide some answers it would be very helpful
please and thanks.

what rom and kernel is the phone using? every phone is different. so there is no specific rom or kernel combination to say per phone. cm7 is mtd, so i cannot help you with the mtd system. i don't use mtd yet.
but, is the phone running cm7 right now?
---------- Post added at 05:22 AM ---------- Previous post was at 05:19 AM ----------
fifasarajevo said:
Ok guys so my brother in law has the EPIC 4G and im the one who flashes roms and such for it and has rooted it cuz he doesnt know how to do that stuff
so i am not usually caught up with the new roms and kernels for the EPIC 4G cuz i have an EVO 3D
anyway
what is the best ROM and Kernel combo out at the moment to get the best battery life for this phone
ive flashed MIUI and ive tryed CM7 for him and he says neither have been providing him a great battery life
im assuming its because of the current kernel hes using (havent flashed a new one in a while) or it could be because hes still using the stock battery which isnt all that great.
so if anyone can provide some answers it would be very helpful
please and thanks.
Click to expand...
Click to collapse
just for the record, signal strength does affect the battery life a great deal. in other words, if he uses the phone where he gets fair coverage or less, his battery will drain faster.

Like what was just mentioned all phones and users are different. You will just have to try them out..no shortcuts. And if he expects to get much more than 4 hours display on time, it's not gonna happen on the stock battery. Keep him on CM7 and order him the GS2 1800 mAH battery from Amazon.
Sent from my SPH-D700 using XDA App

ok thanks for the help guys.

kennyglass123 said:
Like what was just mentioned all phones and users are different. You will just have to try them out..no shortcuts. And if he expects to get much more than 4 hours display on time, it's not gonna happen on the stock battery. Keep him on CM7 and order him the GS2 1800 mAH battery from Amazon.
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
I've gotten 5 hours on stock battery
Sent from my SPH-D700 using xda premium

Biggoron said:
I've gotten 5 hours on stock battery
Sent from my SPH-D700 using xda premium
Click to expand...
Click to collapse
Meaningless information unless you tell us everything you did in that 5 hours with durations and the strength of your signal. If I turn data off and just keep checking the time I could peobably get 10 hours display time.
Sent from my SPH-D700 using XDA App

kennyglass123 said:
Meaningless information unless you tell us everything you did in that 5 hours with durations and the strength of your signal. If I turn data off and just keep checking the time I could peobably get 10 hours display time.
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
I was really just checking the web and using xda for the most part a medium use if anything...
*it says 4 38 but I ran it down to 3 and I got another 30 minutes
Sent from my SPH-D700 using xda premium

Biggoron said:
I was really just checking the web and using xda for the most part a medium use if anything...
*it says 4 38 but I ran it down to 3 and I got another 30 minutes
Sent from my SPH-D700 using xda premium
Click to expand...
Click to collapse
That still doesnt display how big the battery is? for all we know it could be whatever.

I've gotten 3 days on the stock battery but my SD card got corrupted and I lost all of my pictures.
Sent from my SPH-D700 using Tapatalk

XxLostSoulxX said:
That still doesnt display how big the battery is? for all we know it could be whatever.
Click to expand...
Click to collapse
What would be the point in lying? Seriously though its the stock battery I could give you a screenshot now but you'd probably be like "well you just threw that in there for the screenshot"
Sent from my SPH-D700 using xda premium

Related

EF02 and overheating.....

I am using [Odin]Stock EF02 with CWM 3.1.0.1/Root/Busybox 1.18.4 and also tried EF02Plus as well. I seem to have an issue only with EF02 with overheating. I remember it was an issue with the orginial leak of GB but now my phone will say it refuses to charge when it gets too hot. I did a check and my temp reading is at 107F. Now it is about low 90's outside today and we dont have AC as we do not want to kill the planet. Is anyone else having over heating issues? I have also tried both modems ef02 and ef10... I wounder is modem ec03 may solve this... whats your thoughts?
htc_joe said:
I am using [Odin]Stock EF02 with CWM 3.1.0.1/Root/Busybox 1.18.4 and also tried EF02Plus as well. I seem to have an issue only with EF02 with overheating. I remember it was an issue with the orginial leak of GB but now my phone will say it refuses to charge when it gets too hot. I did a check and my temp reading is at 107F. Now it is about low 90's outside today and we dont have AC as we do not want to kill the planet. Is anyone else having over heating issues? I have also tried both modems ef02 and ef10... I wounder is modem ec03 may solve this... whats your thoughts?
Click to expand...
Click to collapse
I used to have that problem too... it seems to be better now... im running marcusiants acs unnamed rom rc10 with the ee03 modem... it has seemed to fix my heating problems... hope I helped you
Edit: also im using maddogins lockscreen mod... just incase that would effect it.
Sent from my SPH-D700 using XDA App
Yes, EE03 runs much cooler. I tried them all.
Sent from my SPH-D700 using XDA App
Lol im getting super overheating problems with stock efo2+eflo modem
Im think of going back to srf once 1.3 comes out
Sent from my SPH-D700 using XDA Premium App
gtuansdiamm said:
Lol im getting super overheating problems with stock efo2+eflo modem
Im think of going back to srf once 1.3 comes out
Sent from my SPH-D700 using XDA Premium App
Click to expand...
Click to collapse
Try marcusiants rom on the acs site and try the ee03 modem.. that should help.
Sent from my SPH-D700 using XDA App
I saw this problem go away when I switched from EF02Plus and went to decadence EF02 deodexed version.
I have had this problem on every ROM I have tried since the release of froyo.. On froyo it would shut down because of the temps and cause all sorts of corruption problems. At least on gingerbread, I am not seeing the corruption, but the overheat lockup is still there and requires a battery pull... I have posted in every thread about this issue and have not seen a real fix to the solution. And I am not sure if it is just certain phones or what as it is not a huge widespread thing, but people do have it... I may try one of the other two roms listed later this week to see if I can sort out the problem...
lilmexx said:
I have had this problem on every ROM I have tried since the release of froyo.. On froyo it would shut down because of the temps and cause all sorts of corruption problems. At least on gingerbread, I am not seeing the corruption, but the overheat lockup is still there and requires a battery pull... I have posted in every thread about this issue and have not seen a real fix to the solution. And I am not sure if it is just certain phones or what as it is not a huge widespread thing, but people do have it... I may try one of the other two roms listed later this week to see if I can sort out the problem...
Click to expand...
Click to collapse
That sounds like a hardware issue if you have it on froyo too...
Sent from my SPH-D700 using XDA App
I think if I charge via usb it stays cooler since lower amp of 500mha
Sent from my SPH-D700 using XDA Premium App
Ran in the big sprint store that has the tech center in it, just to see what they said about the problem.. They ran some tests and an hour later, they came back and said the battery was def on the bad side of things and gave me a new one. So far my battery life has been crazy good and no heat shut downs.. I havent really tested it fully yet, but hopefully my issues were purely battery..
Sent from my SPH-D700 using XDA App
I'm running on ef02 stocked with root and I also use a extended battery with 3500mah capacity ,, been using all this ever since samfirmware released it but so far not one over heat problem that I have seen
Sent from my SPH-D700 using XDA App
lilmexx said:
Ran in the big sprint store that has the tech center in it, just to see what they said about the problem.. They ran some tests and an hour later, they came back and said the battery was def on the bad side of things and gave me a new one. So far my battery life has been crazy good and no heat shut downs.. I havent really tested it fully yet, but hopefully my issues were purely battery..
Click to expand...
Click to collapse
Good to hear you didn't hae t get your whole phone replaced.
Now you should try rc10... batteries great after calibration with ee03 modem... right now I'm at 94% and my phones been off the charger for 3.5 hours and the screens been on 30 minutes... I got 3.5 hours with screen on yesterday, and that as urin the calibration process, so today it I'll probly be better .
Sent from my SPH-D700 using XDA App
kennyglass123 said:
Yes, EE03 runs much cooler. I tried them all.
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
I agree. I use the EE03 modem on the EF02 rom and it work better in my opinion.
Replaced battery did not change anything... On the drive home, talking, same thing happened.. Granted is was like 100 degrees out and I have no ac in my truck... But yeah still shut down!! I guess I am gonna try unnamed and ee03. I guess I have to odin to ee03 correct??
lilmexx said:
Replaced battery did not change anything... On the drive home, talking, same thing happened.. Granted is was like 100 degrees out and I have no ac in my truck... But yeah still shut down!! I guess I am gonna try unnamed and ee03. I guess I have to odin to ee03 correct??
Click to expand...
Click to collapse
That sucks... and yeah print it it take about like a minute to set everything up.
Sent from my SPH-D700 using XDA App
lilmexx said:
Replaced battery did not change anything... On the drive home, talking, same thing happened.. Granted is was like 100 degrees out and I have no ac in my truck... But yeah still shut down!! I guess I am gonna try unnamed and ee03. I guess I have to odin to ee03 correct??
Click to expand...
Click to collapse
Everything is in my sig plus newest version should fix any issues you have

Check this out!! Crazy! long battery life

Check out my battery life. Totally ridiculous. Here is my set up. Beast Mod 4.2 with synergy kernel. Using set CPU to under clock to 1.1. Haven't made any changes to the voltage, also I'm not using any profiles. I'm letting synergy do its own thing. The screen off time is unreal. I went to bed the other night at 9:30 with 35% left. I walked out of the house at 5am and had only lost 1%.
Sent from my SGH-T989 using xda premium
So..... Out of 3 days you only used your phone for 3 1/2 hrs?..
My friend.. Please enjoy your phone and recharge when it gets low or whenever you feel like it.
Sent from my SGH-T989 using xda premium
Nice. But yeah you've got this great phone, why not actually use it even if it means charging while you sleep?
Man, even without use you get 3 days of battery?
DAMN THIS LTE RADIO.
I can't do anything more then 2 days without touching the phone more then once every few hours to check the time...
LTE RADIO, WAI U GOTTA DRAIN MAH BATTERY.
I think people are overlooking the fact that he was able to use the phone with 3 1/2 hours display on time throughout 3 days. that's freaken 72 hours... people were saying they get 2% drain every hour... you guys do the math. That's freaken amazing... sooo 68.5 hours of it... even with a few background stuff running... the phone barely drained.
if he was to use the phone throughout a single day it looks like he'll get around 5 hours of display on time maybe more.
That was the point I was trying to make. 3 1/2 screen on time is a decent amount. The screen off drain is amazing I think.
What is the version of your kernel? Is it the same as the one comes with the ROM?
Sent from my SGH-T989 using XDA App
hyl4me said:
What is the version of your kernel? Is it the same as the one comes with the ROM?
Sent from my SGH-T989 using XDA App
Click to expand...
Click to collapse
Yes. Its the latest version of synergy.
Using the stock rom, i get the best battery life out of any phone i have ever had. I can use it as much as i want all day and only have to charge it at night.
Hey OP, do you think you could post your other stats? Like, wifi enabled or no, gps enabled or no, brightness, background data, auto-sync, etc? This is amazing battery life by the way
shinigenEddy said:
Hey OP, do you think you could post your other stats? Like, wifi enabled or no, gps enabled or no, brightness, background data, auto-sync, etc? This is amazing battery life by the way
Click to expand...
Click to collapse
I dont keep wifi, or gps on. Backround data and auto sync are on. I keep the screen brightness 2 clicks from the bottom. Also I have alot of apps frozen thru titanium. Like facebook, twtter, samsung apps, media hub.
i say its pretty impressive coming from a thunderbolt. if i charge that phone to 100% and leave it off the charger over night im lucky to wake up with 40% left. and thats with no use of the phone at all
GreggoryD502 said:
I dont keep wifi, or gps on. Backround data and auto sync are on. I keep the screen brightness 2 clicks from the bottom. Also I have alot of apps frozen thru titanium. Like facebook, twtter, samsung apps, media hub.
Click to expand...
Click to collapse
Thanks for the response, I will have to give BeastMod a try - currently running Bombaridier 3.0. Only problem is, none of the 5 download links on the BeastMod thread are working for me...do you think you would be able to kindly share a download link of BeastMod 4.2? Thanks!
shinigenEddy said:
Thanks for the response, I will have to give BeastMod a try - currently running Bombaridier 3.0. Only problem is, none of the 5 download links on the BeastMod thread are working for me...do you think you would be able to kindly share a download link of BeastMod 4.2? Thanks!
Click to expand...
Click to collapse
I don't mind. How would open go about doing that?
Sent from my SGH-T989 using xda premium
GreggoryD502 said:
I don't mind. How would open go about doing that?
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
An upload onto say, MediaFire or something would be great
OK. Ill upload later on.
Sent from my SGH-T989 using xda premium
GreggoryD502 said:
OK. Ill upload later on.
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
Yes can't download beast mod 4.2 anywhere. Would be very nice of u. Thanks
I would like to try that rom
Deleted post because Im a dork!
GreggoryD502 said:
Heres a link to BeastMOd 4.2
http://dl.dropbox.com/u/58368281/BeastMOD_Signed_II_v4.2.zip
Click to expand...
Click to collapse
Gives me a 404 Error not found when I click the link
Hang on. Im an idiot. I thought I knew how to use dropbox. Apprerntly I dont. Ill post a working link soon. Sorry!!

I just came from the Nokia n900

I just came from the Nokia n900 and having so many things working on the phone is a refreshing change! Ive lurked around and read a lot! As a result ive succesfully rooted my phone and have even tried out a few custom roms! However I have a question about a ROM im currently using but I cant post in the dev forum yet so I figured ill try here. Im currently using the digital warfare ROM and ive noticed that my powersave feature does not seem to work correctly. It will kick in regardless of the battery percentage I set. So ive just left it off for now. can someone help?
lvlonkey said:
I just came from the Nokia n900 and having so many things working on the phone is a refreshing change! Ive lurked around and read a lot! As a result ive succesfully rooted my phone and have even tried out a few custom roms! However I have a question about a ROM im currently using but I cant post in the dev forum yet so I figured ill try here. Im currently using the digital warfare ROM and ive noticed that my powersave feature does not seem to work correctly. It will kick in regardless of the battery percentage I set. So ive just left it off for now. can someone help?
Click to expand...
Click to collapse
First I want to give you huge props for actually reading and doing all that on your own instead of posting a ton of useless threads with questions that can easily be found! But to answer your question, the My Account app has its own power save feature, try going into that app and adjusting it from there or just disabling it all together. Hope this helps.
Sent from my GT-P7510 using xda premium
oh man it was really easy compared to what i had to deal with using the n900! well for now i suppose ill just disable it. thanks!
lvlonkey said:
oh man it was really easy compared to what i had to deal with using the n900! well for now i suppose ill just disable it. thanks!
Click to expand...
Click to collapse
Just disable the power saver in the my account app and use the power saver settings built into the phone, that's what I do.
Sent from my SGH-T989 using xda premium
Welcome to the family.
This phone is pretty beast, and it will only get better.
Thanks! I can tell! making the transition from hw Kb to all touch is kinda weird but this.phone is so capable and powerful its awesome!
Welcome dude and yea i would just disable this phone is great with battery life anyways. One suggestion tho i would freeze tmobile my account all together in titanium backup or uninstall it tgats if u have it installed it actually messes with wifi. When your on wifi it will turn on 4g signal whenever data is requested which isnt good cuz u think ur using wifi the whole time. Ever since ive disabled tgat app i have not had a problem with wifi or 4g service. I actually think its a way for tmobile to snoop on our data. I made a thread about this and other people have confirmed this app to be the culprit. I actually was gonna take my phone back because i couldnt get wifi to stay connected so thats when i started investigating and found this
Hmm I like to keep track of my data usage but if thats the case away it goes!
lvlonkey said:
Hmm I like to keep track of my data usage but if thats the case away it goes!
Click to expand...
Click to collapse
I remember someone posting some dialer codes where you can check how much data you have accumulated. I just don't know where I saw it. Post on the q&a to find put.
Sent from my SGH-T989 using Tapatalk
Ok nice ill look around for that. Ive just noticed the phone gets pretty warm/hot on some graphics intensive games. is this a cause for concern?!
novanosis85 said:
I remember someone posting some dialer codes where you can check how much data you have accumulated. I just don't know where I saw it. Post on the q&a to find put.
Sent from my SGH-T989 using Tapatalk
Click to expand...
Click to collapse
It's #932# to check data on the dialer..
Sent from my SGH-T989 using XDA App
lvlonkey said:
Ok nice ill look around for that. Ive just noticed the phone gets pretty warm/hot on some graphics intensive games. is this a cause for concern?!
Click to expand...
Click to collapse
Are you overclocked?
Sent from my SGH-T989 using Tapatalk
No im running at stock speeds
It's not unusual for a phone to get warm when running cpu/gpu intensive processes like games. It only becomes a problem when it gets incredibly hot and forces the phone to reboot or the battery gets too hot to touch.
#932# for data
Sent from my SGH-T989 using XDA App
Thanks. now i'm having a new problem. My phone will just randomly shut off and I cant turn it back on until I pull the battery. It has happened twice so far
is your phone hot when this happens? try darksides kernel. haven't had an issue.
Sent from my SGH-T989 using XDA App
not hot. i just flashed his new rom/kernel combo with a clean wipe and as i was messing around with milocker it did it again. just shut off on me. only way to bring it back is to pull the battery. very strange.
You using a new ROM? I know you said new ROM/kernel combo but that could imply same ROM new,kernel. If youre on the same ROM, check the thread to see if its an issue with it I guess. Could always try a new one and see if that fixes it. Let us know if you find out anything.
Sent from my SGH-T989 using xda premium
lvlonkey said:
Hmm I like to keep track of my data usage but if thats the case away it goes!
Click to expand...
Click to collapse
I use 3G Watchdog. It's available in the market. Has a nice little widget as well.

Darkside Evolution Beta3

Is without a doubt, the best rom I've tried yet. Just wanted to give props and show off a screenshot. The only thing I've found wrong with this rom is that is so damn perfect, I feel like there's nothing more I can do to it to tweak it or improve it
Well, the only thing I would like to figure out is how to make a live wallpaper based on the screenshot below with wiggly Cthulhu tentacles! RAWR!
Well I can't post images so included a file for those interested in seeing it in action but haven't flashed this goodness yet.
It is a wonderful rom.
As far as live wallpapers, you'll need to know some coding. Google hak5 live wallpaper. They have a decent tutorial. I'm on my phone right now and can't seem to find it
Good luck
Sent from the darkside of my Galaxy S III.
Thanks for the hint in the right direction. I've been estranged from Java for a while because most recently been using Ruby, might have to dust off my Java memory banks.
Thanks!
It shouldn't be too hard to relearn. They say you never forget. best of luck
Sent from the darkside of my Galaxy S III.
I agree, definitely best ics rom out.
Sent from my SGH-T989 using xda premium
I've been having a much better experience from beta 2 except batt life, seems to drain much faster
Sent from my SGH-T989
my phones screen won't dim or turn off.... It will dim or turn off after the initial boot, but afterwards whenever the screen turns on it will remain on forever. does anyone else have this issue?
Sent from my SGH-T989 using xda premium
icepally said:
I've been having a much better experience from beta 2 except batt life, seems to drain much faster
Sent from my SGH-T989
Click to expand...
Click to collapse
really I'm on hour 25 and have 36% battery left..
rsfaze said:
really I'm on hour 25 and have 36% battery left..
Click to expand...
Click to collapse
Do you even use your phone? Can you post a screenshot of your battery usage? I'm a little skeptical about that.
As for the ROM, I took a look at the changelog and most the problems I was having seem to have been fixed! Going to try beta 3 as soon as my phone is done charging.
rsfaze said:
really I'm on hour 25 and have 36% battery left..
Click to expand...
Click to collapse
Pics or it didn't happen.
He is fixing allot of the bugs getting rid of the dim screen bug and remove input select method in notification bar and allot more
Sent from my SGH-T989 using xda premium
totally agree. I added the ASOP theme and set the screen to 190 dpi .. looks so sharp! As for battery I consider my self a heavy user and yesterday I went just under 16 hours.
Jester6 said:
Pics or it didn't happen.
Click to expand...
Click to collapse
What are you 5? Get over your self.. and sorry if that's rude but lets be real..
Sent from my SAMSUNG-SGH-I727 using XDA
oh. so its a known bug? I hacked the op and it wasn't listed so I was just wondering if I was the only one that has that bug
Sent from my SGH-T989 using xda premium
I'm a very heavy user. Beta 3
Sent from the darkside of my Galaxy S III.
You charged it 3 times...
Sent from my SGH-T989D using xda premium
It still gives an idea of the battery life.
Sent from the darkside of my Galaxy S III.
danielblakes said:
It still gives an idea of the battery life.
Sent from the darkside of my Galaxy S III.
Click to expand...
Click to collapse
How do you figure? Also, are you from the future?
PJcastaldo said:
What are you 5? Get over your self.. and sorry if that's rude but lets be real..
Click to expand...
Click to collapse
28, but close guess. How was anything i typed egotistical? I require proof before I believe outlandish claims, probably why I'm an atheist...
edit: proof was provided but it was tainted, thus i see no reason to retract my statement.
Also having excellent battery life. Almost always connected to wifi as well.
So I started researching live wallpapers... got a set of three that I will be releasing that go along with the dark side theme!
Vader and the clown from Stephen kings "It" appearing and fading into darkness and wiggly cthulhu tentacles!
Stay tuned!
Sent from the Darkside
Smoother than a baby's bottom, but I might go back to beta 2 for the battery life. I had about 12 hours clocked at 70% for beta 2. Same usage on beta 3 left me at about 80% after only 5-6 hours
Sent from my SGH-T989 using XDA
Get juice defender. It really works
Sent from my SGH-T989 using Tapatalk 2

[Q] terrible battery life on Frankenstein's FIFO2

anyone else having the same problem? im not using it heavily, just texting; i have 6h 37m on it and i have currently at 15%. i have SetCPU at 800mhz and brightness is less than half. everything should be fine right?
another question, are the Kobridge Super Build.prop automatically on? or how do i turn them on. (if possible provide videos on how to do so.)
yes, i acknowledge the fact that i am a noob.
thanks.
3g
also 3g doesnt seem to be working, usually on calk's 3.0 gb rom it would be 40.0kB/s now its just horrible. average 3.0kB/s. yes it do have good signal.
Don't use setcpu, act you shouldn't use any CPU app right now. I have found them to keep the phone awake more often then not.
Sent from my SPH-D710 using xda premium
TeamERA said:
Don't use setcpu, act you shouldn't use any CPU app right now. I have found them to keep the phone awake more often then not.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
so how do you use the build.prop?
also what about the 3G? i think its stuck on 1x..
tonyec7 said:
so how do you use the build.prop?
also what about the 3G? i think its stuck on 1x..
Click to expand...
Click to collapse
Well the build.prop, what do you mean. And Yes I have had the same issue with data, sometimes I have to reboot before I even see 1x, so I say its either Sprint, or the modem. We will also check to see if a missing file may be causing an issue.
Sent from my SPH-D710 using xda premium
TeamERA said:
Well the build.prop, what do you mean. And Yes I have had the same issue with data, sometimes I have to reboot before I even see 1x, so I say its either Sprint, or the modem. We will also check to see if a missing file may be causing an issue.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
i mean like how do you use it? or does the phone automatically uses it?
tonyec7 said:
i mean like how do you use it? or does the phone automatically uses it?
Click to expand...
Click to collapse
It's automatic, you don't do anything with it.
Sent from my SPH-D710 using Tapatalk 2
Try changing the kernel I am always getting terrible battery life on roms based off leaks.
Zero Night said:
Try changing the kernel I am always getting terrible battery life on roms based off leaks.
Click to expand...
Click to collapse
which kernel should i use? because when i used calk's 3.0, the battery life is great. and i had no trouble with the 3g whatsoever.

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