Changing ROMs often? - Samsung Galaxy Nexus

This is a semi general android question... but i have a galaxy nexus... and that's what I'll be paying with...so....
I am currently testing out ROMs... mostly apex and its previous incarnations...
I was wondering if there is any downside to flash ROMs often? Like once or twice a week, as far as longevity of the device or its rank management or " snappiness"?
Thanks for the info!

You will be fine. From what I understand it takes your battery a couple of days to "adjust" to your rom properly and display accurately

wayneb02 said:
You will be fine. From what I understand it takes your battery a couple of days to "adjust" to your rom properly and display accurately
Click to expand...
Click to collapse
and if not you can calibrate your battery using battery calibration.

truthlesshero said:
This is a semi general android question... but i have a galaxy nexus... and that's what I'll be paying with...so....
I am currently testing out ROMs... mostly apex and its previous incarnations...
I was wondering if there is any downside to flash ROMs often? Like once or twice a week, as far as longevity of the device or its rank management or " snappiness"?
Thanks for the info!
Click to expand...
Click to collapse
Hey I am on build 20 or AOKP so I have rebuilt mine at least twenty times but probably a lot more because I have tried ever rom available. I think of it like rebuilding my laptop, I don't think it does any harm at all but over time the device will deteriorate just like any other hardware device.

NAND flash is susceptible to write wear and will degrade over time. Frequent ROM flashing will increase the write rate to the NAND and over time the storage performance will decrease.
I have not measured the impact myself.

what sillow said is what is worrying me mostly...i will probably end up keeping one stable build and only reflashing once a month or something of the nature just to get updates....
I know that hardware performance will deteriorate over time like any other device...the only thing is that i'm in Canada...so...yeah, three year contracts...hehe
i'd like to have my phone survive at least 2+ years comfortably...hehe
minipaolo - do you mean the battery calibration app? i'm using cwm recovery and there is an option to wipe the battery stats from the recovery, which i think is just what the app does, if i'm not mistaken? (other than showing stats, of course...)

truthlesshero said:
minipaolo - do you mean the battery calibration app? i'm using cwm recovery and there is an option to wipe the battery stats from the recovery, which i think is just what the app does, if i'm not mistaken? (other than showing stats, of course...)
Click to expand...
Click to collapse
There has recently been a google+ post from one of the google developers who said that deleting you're battery stats has no influence whatsoever. Your battery will automatically calibrate itself, so no need to use a special app or delete the stats.
Anyway, good question in the OP. I can imagine it decreases the lifespan, but I can't imagine that it's decreased by a lot -or maybe just wishful thinking-

haha...exactly, let's just hope if there is an impact, that it's quite minimal...

I've been flashing roms ever since I got my first Android phone all the way up to the Galaxy Nexus now. Never had a problem.

Related

[Q] Battery Draining at 10%/hr

Recently purchased the T-Mobile Samsung Galaxy S2 and I flashed Beastmod v4.2 onto it. I'm experiencing a lot of battery drain, approximately 10% an hour with very minimal usage. I flashed the same ROM onto an identical SGS2 and the batterylife on that one is great. I've tried reflashing Beastmod but still getting the same issues. Anyone knows whats going on or how to resolve this?
How are you flashing it? Wipe everything and fix permissions?
Sent from my SGH-T989
I flashed it following the directions on the Beastmod thread in development.
1. Download it and place it at the root of your SD Card.
2. Boot into recovery.
3. Factory Reset then wipe cache.
4. Flash the ROM then wipe dalvik cache.
5. Reboot!
Beastmod is still 2.3.5, you should consider flashing one of the 2.3.6 ROMs and maybe updating your Radio to the latest , much better battery seems to come with the newer update ...
tcboo said:
Beastmod is still 2.3.5, you should consider flashing one of the 2.3.6 ROMs and maybe updating your Radio to the latest , much better battery seems to come with the newer update ...
Click to expand...
Click to collapse
Why would there be such a large discrepancy in battery life though from one T-Mo SGS2 with Beastmod to the other? That's what is making me scratch my head.
Did u do a battery Calibration? If not this might the reason why
Djapatos said:
Did u do a battery Calibration? If not this might the reason why
Click to expand...
Click to collapse
Umm yeah that too ... duh ....
There is a BIG change in 2.3.6 in battery life, at least what I am seeing and others have reported, some say it is the ROM some say it is the radio , I am using both, I get better battery life, but overall the SGS2 Hercules is a battery hog ...
Djapatos said:
Did u do a battery Calibration? If not this might the reason why
Click to expand...
Click to collapse
I have done a battery calibration on the phone.
Disable sync for your Exchange email. I found that to be the biggest source of drain.
Sent from my SGH-T989 using XDA App
I feel the same way my man..no matter which ROM I use, my battery drains like a mother
A lot of this can be due to signal strength. If you're in an area where you're constantly disconnecting/reconnecting to the towers, or you're just below the acceptable level for 4g, it might be switching between 3 and 4g, draining your battery.
Another thing to note, you usually want to run a rom for a couple of days before you start judging battery. It takes a while sometimes to build the dalvik-cache, and calibrate the battery. Sometimes as much as 3 full charges.
Lastly, look at what you have running on your phone. If you've tried tons of different roms, and they all drain, chances are it's an app you have that's misbehaving causing wake-lock. I'd try downloading system tuner from the market, and first going into the startup section. Remove ANYTHING that doesn't need to run in the background. You'd be amazed how many apps run at startup that really shouldn't, at least until you start them yourselves. Battery spy and cpu spy can be useful for troubleshooting what's draining your phone as well.
I drop 1% per 5 minutes or less....
Sent from my SGH-T989 using Tapatalk
mstrk242 said:
A lot of this can be due to signal strength. If you're in an area where you're constantly disconnecting/reconnecting to the towers, or you're just below the acceptable level for 4g, it might be switching between 3 and 4g, draining your battery.
Another thing to note, you usually want to run a rom for a couple of days before you start judging battery. It takes a while sometimes to build the dalvik-cache, and calibrate the battery. Sometimes as much as 3 full charges.
Lastly, look at what you have running on your phone. If you've tried tons of different roms, and they all drain, chances are it's an app you have that's misbehaving causing wake-lock. I'd try downloading system tuner from the market, and first going into the startup section. Remove ANYTHING that doesn't need to run in the background. You'd be amazed how many apps run at startup that really shouldn't, at least until you start them yourselves. Battery spy and cpu spy can be useful for troubleshooting what's draining your phone as well.
Click to expand...
Click to collapse
Thanks for the tips. I didn't give it a chance to do 3 full charges yet and I'll take a look into removing startup apps.
From the OP, it sounds like you have more than one SG2 phone available to you. Try swapping batteries to see if the same rapid discharge occurs where transferred.
audscott said:
From the OP, it sounds like you have more than one SG2 phone available to you. Try swapping batteries to see if the same rapid discharge occurs where transferred.
Click to expand...
Click to collapse
Very good thinking.
Sent from my SGH-T989 using XDA App
513263337 said:
Very good thinking.
Sent from my SGH-T989 using XDA App
Click to expand...
Click to collapse
I did try this but the issue with the draining is still there.
Have you tried changing kernels? Each phone responds differently to kernels and like some more than others. I've tried everyone and Faux's "stock" kernel works the best on my phone. It's UV, on stock speeds with a screen off profile.
To make sure your phone is actually going into deep sleep check the app CPU spy on the market. it'll tell you what clocks your phone is running through and staying at for the most time.
Also, check out System Tuner to see what rogue apps could be running constantly in the background [se Bloatware Freezer to freeze or remove apps as necessary] as well as if your 2nd core is staying offline and not staying on when it's not needed.
I would also throw your phone into airplane mode and compare the drain with no data activation to how you normally keep it to check if the 3G/4G toggling is draining your battery.

CM10 Performance

I've been running the 9/15 nightly, and while I haven't had excellent battery life, it has typically lasted around 8 hours or more. Today was a little different; with only an hour of screen time, my battery was down to 30%. On top of that, it usually takes 3 or 4 presses of the home button to wake my phone up.
EDIT: I forgot to add that my screen usage usually accounts for 60%, or more, of my battery usage--and that's with minimal usage. It always seemed like my screen was draining the battery even when it was off. It is much less now.
I read on the forums that a simple increase of the minimum frequency can resolve the waking issue. However, it didn't; instead, my battery life improved dramatically. I'm used to a pretty jagged and sharp battery graph, but now it's as smooth and linear as I have ever seen it.
Can anyone explain why raising the min freq improved my battery life?
Sent from my SAMSUNG-SGH-I747 using xda premium
Why don't you update? Its Oct 5th. Maybe give that a try? Old build man.
Well, I've considered it, but I always check the main thread first. It always seems like people are having LTE or GPS issues with the new build. Everything, aside from the battery life and screen waking, has been working exceptionally well. Not to mention, school and work hasn't given me enough free time to experiment with the new builds. I might try this tonight though.
Sent from my SAMSUNG-SGH-I747 using xda premium
DStevens5833 said:
Well, I've considered it, but I always check the main thread first. It always seems like people are having LTE or GPS issues with the new build. Everything, aside from the battery life and screen waking, has been working exceptionally well. Not to mention, school and work hasn't given me enough free time to experiment with the new builds. I might try this tonight though.
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
The rom actually updates EVERY DAY you have missed many many updates here is a changelog http://changelog.bbqdroid.org/#d2att/cm10/1349329973
well all devices are not created equal. i suppose its possible that the ideal minimum frequency for your device is a above stock (or whatever you had it at before). raising the minimum frequency can improve cell connection, screen flickering issues, ect (things that cause battery drain).
also i advise you to update your cm build. either that or switch to cm monthly or another rom that doesn't push out critical updates every night. Try a rom that is considered stable like liquidsmooth, slimbean..
On the Oct 3 build and it's very fast. Batter life has been quite bad, have to charge it twice a day. Had a lot of crashing yesterday, phone decided to reboot continuously. Apollo has stopped error persisted until I cleared cache, and keep getting email/exchange devices have stopped errors until I disabled email.
Battery is the only thing that really bugs me though
Not sent from my toilet with a soap bar.
@nccu_eagles & @jefferson9: To be honest, I never realized the minimum frequency affected so many different elements outside of power saving. I admit I haven't kept it up-to-date; I'm always afraid to update after seeing some of the bugs people post. Perhaps I would be better off with a more stable release--at least until the semester is over, which will leave me with much more time to dabble. If I finish my homework in time, I might try a few different roms tonight.
@adammur: Those are the type of bugs that keep me from updating.
On another note, today's battery life has been great. My battery would normally drain between 12-20% an hour. Today, I'm averaging 5% an hour with similar usage. :good: Anyways, thank you guys for the replies. I'll see if I can't find something to better suit me.... for now :fingers-crossed:.
Before playing with the TouchWiz Jellybean Milestone 5 (Firefly) ROM by Drew Garen, I was running the JellyBro's euroskank October 3rd nightly along with LeanKernel as well as JuiceDefender Ultimate...
My Galaxy S3 could literally last 2 days with that setup. It was UNREAL.
The problem is, I really actually do like the TouchWiz interface (I know I know, I'm one of the few).
But if ultimate battery life is your goal with the Samsung Galaxy S3... Do a factory reset / cache wipe and install the Oct 3rd version of JellyBro's euroskank for the d2att... Then go ahead and install yourself the tmobile / AT&T version of leankernel...
You WILL NOT be sorry!
DStevens5833 said:
I've been running the 9/15 nightly, and while I haven't had excellent battery life, it has typically lasted around 8 hours or more. Today was a little different; with only an hour of screen time, my battery was down to 30%. On top of that, it usually takes 3 or 4 presses of the home button to wake my phone up.
EDIT: I forgot to add that my screen usage usually accounts for 60%, or more, of my battery usage--and that's with minimal usage. It always seemed like my screen was draining the battery even when it was off. It is much less now.
I read on the forums that a simple increase of the minimum frequency can resolve the waking issue. However, it didn't; instead, my battery life improved dramatically. I'm used to a pretty jagged and sharp battery graph, but now it's as smooth and linear as I have ever seen it.
Can anyone explain why raising the min freq improved my battery life?
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
What did you increase it to, if you don't mind me asking?
I normally use up-to-the-moment builds (downloading 10/07 ad I write) and my battery life has been reasonable - up to two days total with light use. Seems to me to be a matter of making sure you're not running too many (any?) battery-hogging apps (BetterBatteryStats has been enormously helpful in this respect).
Unfortunately, I was unable to play with anything last night due to homework. I did, however, purchase and install BBS and JD. I'm actually at work right now, so I can't really post much other than a few screenshots.
Sent from my SAMSUNG-SGH-I747 using xda premium
Cuddlesy said:
What did you increase it to, if you don't mind me asking?
Click to expand...
Click to collapse
I increased it from 384 to 486. So far it seems to have helped a lot. I'm actually about to try a couple different ROMs and see how they go. Wish me luck :cyclops:
dpav02 said:
The problem is, I really actually do like the TouchWiz interface (I know I know, I'm one of the few).
Click to expand...
Click to collapse
You are not alone, I enjoy the functions/features of the OTA ROMs.
Notification accessible when in full screen apps, the multi-window screen lets you "clear all" and access task manager&Google Now, the stock dialer has more efficient functions(Displays all calls from a contact if selected, slide right/left to call/send sms)
But going back on topic, I set my cpu to be conservative but I'm not sure if that'll save battery.
I want to be able to game when at work but not have the power-saving setting limit it yet still be able to last me a day. The OTA ROMs' power-saving feature was able to do that.

pacman rom

Hey guys I'm kind of new to the rom world and let me say i LOVE IT. So much stuff you can do with the android. I'm on a i747 galaxy s3 and I've just downloaded the Pacman rom.I've downloaded other roms so i know i flashed this one correctly. I even re flashed it again last night. Both yesterday and tonight my battery went to 100%-%50 in one hour. After i charged it up it would decline 20 percent in one hour. I look at the time screen time on and to see if anything is waking up my phone excessively. And all sings say to no. Any tips? I feel like I'm back in pre ics days haha.
rvicencio123 said:
Hey guys I'm kind of new to the rom world and let me say i LOVE IT. So much stuff you can do with the android. I'm on a i747 galaxy s3 and I've just downloaded the Pacman rom.I've downloaded other roms so i know i flashed this one correctly. I even re flashed it again last night. Both yesterday and tonight my battery went to 100%-%50 in one hour. After i charged it up it would decline 20 percent in one hour. I look at the time screen time on and to see if anything is waking up my phone excessively. And all sings say to no. Any tips? I feel like I'm back in pre ics days haha.
Click to expand...
Click to collapse
when you flash a new ROM it is recommended to wipe Cache, Dalvik, Factory Reset and System. If you've done that you should be okay with the installation portion.
Have you modified the kernel at all, have you over clocked anything?
Go to the play store and download BetterBatteryStats. This will help you determine the cause.
Sent from my SGH-I747 using xda app-developers app
RPelham said:
when you flash a new ROM it is recommended to wipe Cache, Dalvik, Factory Reset and System. If you've done that you should be okay with the installation portion.
Have you modified the kernel at all, have you over clocked anything?
Go to the play store and download BetterBatteryStats. This will help you determine the cause.
Sent from my SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Yeah i have. When i installed i did the whole wipe thing. And I'm useing gsm batter monitor. All the readings are normal which is the weird part to me. And no i haven't over clocked (No need to imo) and haven't modified the kernel. I know that on previous androids you would have to do a wipe batter stats. I actually tried looking for that in CMW but i wasn't able to find it. Would you have to wipe the battery stats using "batter calibration" or wiping it manually in CMW? Or is that even necessary for galaxy s3s?
rvicencio123 said:
Yeah i have. When i installed i did the whole wipe thing. And I'm useing gsm batter monitor. All the readings are normal which is the weird part to me. And no i haven't over clocked (No need to imo) and haven't modified the kernel. I know that on previous androids you would have to do a wipe batter stats. I actually tried looking for that in CMW but i wasn't able to find it. Would you have to wipe the battery stats using "batter calibration" or wiping it manually in CMW? Or is that even necessary for galaxy s3s?
Click to expand...
Click to collapse
I would also recommend using Better Battery Stats as it is the best one I think. I always use the battery calibration app after I flash a new ROM. It usually takes a couple days or so anyways to have the new ROM settle in and everything. After a couple days you should see your battery life where it should be and not draining so fast depending on what your settings are.
Battery calibration is a myth and has been confirmed by Google themselves. Its all over the forum and wholly unnecessary. Those apps are useless. The only way to truly let your battery stats "calibrate" is to let the ROM and kernel settle into the phone after a few charge cycles.
Here's the Google+ discussion by one of Google's people: https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT
If you want to keep "calibrating" your battery for the warm and fuzzies, its your time and device.
CrackerTeg said:
Battery calibration is a myth and has been confirmed by Google themselves. Its all over the forum and wholly unnecessary. Those apps are useless. The only way to truly let your battery stats "calibrate" is to let the ROM and kernel settle into the phone after a few charge cycles.
If you want to keep "calibrating" your battery for the warm and fuzzies, its your time and device.
Click to expand...
Click to collapse
Wow thats interesting. Everywhere i go people say that battery calibration is a necessary part when switching roms. Just out of curiosity what do you do for better battery life ? Basically what you use and not use settings wise.
rvicencio123 said:
Wow thats interesting. Everywhere i go people say that battery calibration is a necessary part when switching roms. Just out of curiosity what do you do for better battery life ? Basically what you use and not use settings wise.
Click to expand...
Click to collapse
Everyone's battery life varies. Honestly, it doesn't matter the ROM. The kernel does play a part in it but its how YOU use the phone, display brightness, sync, etc. Way too many factors.
As for me, I get about the same life on most ROM's I use after letting the phone settle for a few days. The only constant I have is the kernel I use which is in my signature. Lately, I've settled on one ROM as the dev is on top of his game with this device. That ROM is also in my sig.

[Q] Battery calibration - Placebo or godsend?

Hi guys -
So I saw in one of the 4.4 ROM threads that someone had used the Battery Calibration app from the Play Store and they claimed it seriously helped their battery life on the geespr. I decided to look at the app in the Store, and I started reading the reviews. I'm perplexed - - many people gave five star reviews claiming it significantly improved their battery life, while others said it did nothing, and a few even said it made their battery WORSE. Then there's the few who have said that wiping the battery stats file (the function that the app fulfills) can't possibly make a difference to your battery life because it only affects how Android reports the battery info. Still further, some say that the battery stats are ALREADY wiped when you flash a new ROM or even just unplug your charger.
So how about it, guys? Can we get a definitive answer about this? Surely our talented devs know the truth?
prowlingfox said:
Hi guys -
So I saw in one of the 4.4 ROM threads that someone had used the Battery Calibration app from the Play Store and they claimed it seriously helped their battery life on the geespr. I decided to look at the app in the Store, and I started reading the reviews. I'm perplexed - - many people gave five star reviews claiming it significantly improved their battery life, while others said it did nothing, and a few even said it made their battery WORSE. Then there's the few who have said that wiping the battery stats file (the function that the app fulfills) can't possibly make a difference to your battery life because it only affects how Android reports the battery info. Still further, some say that the battery stats are ALREADY wiped when you flash a new ROM or even just unplug your charger.
So how about it, guys? Can we get a definitive answer about this? Surely our talented devs know the truth?
Click to expand...
Click to collapse
I've been confused by the same thing. I usually recommend doing it when switching between roms. While I can't give you a definite answer, I have also read that wiping the batterystats.bin file does nothing. This thread here says it does absolutely nothing and explains why. That being said, I am one of the people who have noticed significant increases in battery performance from it - which is why I recommend it. Apparently it shouldn't work though! So now the real question is, why the hell did my battery performance increase to such a high degree afterwards, if it does nothing? I didn't use the app, I just deleted the file once my phone hit 100%.
That thread I posted states it is clearly a placebo, and is even backed up by google. It won't hurt so I still do it because like I said Ive noticed an increase. Now Im completely unsure as to why that increase has taken place.
The app also says to let your phone drain to 0% and then recharge uninterrupted back to 100%. It says that it isn't necessary but helpful. Now this could help your battery IF it was a nickel based battery. Since ours in Lithium based, it can actually hurt performance and shorten your batteries life span.
HPTesla said:
Apparently it shouldn't work though! So now the real question is, why the hell did my battery performance increase to such a high degree afterwards, if it does nothing?
Click to expand...
Click to collapse
This is a real conundrum :\ and it's going to bug the heck out of me.
prowlingfox said:
This is a real conundrum :\ and it's going to bug the heck out of me.
Click to expand...
Click to collapse
Yeah, it appears as if it is simply a placebo. That thread is clear on what that file does and it shouldn't affect performance. Perhaps my increases happened because of changes in charging that just happened to coincide with wiping that file? What I do know is that I was regularly getting 15 hours or so with moderate use. Afterwards it doubled. The longest this battery has lasted for me was a little over 30 hours on a full charge.
HPTesla said:
Yeah, it appears as if it is simply a placebo. That thread is clear on what that file does and it shouldn't affect performance. Perhaps my increases happened because of changes in charging that just happened to coincide with wiping that file? What I do know is that I was regularly getting 15 hours or so with moderate use. Afterwards it doubled. The longest this battery has lasted for me was a little over 30 hours on a full charge.
Click to expand...
Click to collapse
It must just be a combination of factors then...which would explain why some people say it helps and some people say it hurts. Seems there's no real clear trend. Thanks for your replies
prowlingfox said:
It must just be a combination of factors then...which would explain why some people say it helps and some people say it hurts. Seems there's no real clear trend. Thanks for your replies
Click to expand...
Click to collapse
Eh, no problem, thanks for asking. I've been telling people false info based on misguided observations - and that's never good.
It works for me. I used to get like 11 hour with 3 hr screen time, and now I get 13
Sent from my LG-LS970 using xda app-developers app

Battery Life TERRIBLY sucks

My battery life on 4.3 stock was 8 hours screen time (half brightness I believe)
Rooted and flashed a custom rom and kernel 7hr30min screen time
Flashed different kernels dropped to 6hr max screen time (without factory reset)
After installing Xposed and many many modules the screen time kept dropping to like 5hr to 6hr
Updated to KitKat and rooted 4:30min to 5 HOUR MAX screen time PLUS phone got hot ALOT OF TIMES
***RIGHT NOW*** Flashed a custom ROM HyperDrive with Colonel X latest and Compulsion latest BOTH 3hr30min to 4hr30min MAX screen on (EVEN with Jovy23's kernel settings that got him AMAZING battery life with ConservativeX governor - It still did not fix the issue not even a little - I still like Compulsion which was awesome when I was on jellybean) :'(
Same settings for all the above set ups. Whenever I flash a ROM I ALWAYS clean flash and I DO NOT have Titanium Backup NOR do I use any other restoration app. I tried to clear and format every partition. I formatted SD card. SAME issue. I am frustrated by the battery life; it DOES NOT last me a day when on stock unrooted it was easily 8 hours. Also I do not use auto-brightness cuz the sensor uses more battery, so it was on half-brightness)
Someone please help me. The worst thing about a phone is the battery life. I usually browse Chrome and Facebook and for these simple tasks my battery dies quickly (WTH?!). I can't even think about gaming (and I REALLY want to GAME), but I know the battery life would die so much.
Is my phone defective? I tripped Knox. I already had a warranty replacement in like the first 2 weeks cuz of Knox issues stock. WTH is wrong with my phone. I want to format and clean EVERY SINGLE THING on my phone to get it the 8 hours screen on time I used to get. No matter what I do my battery life right now WILL NOT go above 4hr30min to 5hrs screen on. I used to watch Netflix for quite a while back on my stock Jellybean / rooted Jellybean days, now it dies extremely fast.
What should I do? I was thinking of flashing AOSP so it cleans up whatever Touchwiz and Samsung related is on my phone and then re-flash touchwiz so everything is set up correctly. I tried to use the mega-wipe script for a certain Note 3 model but it stopped at like 10% to 20%, so that route did not go well (I manually wiped everything data, internal, etc, before flashing many ROMs and this problem persisted).
I cannot do anything good on my phone until this issue is fixed. I hate clean-flashing and setting up things (I think titanium backup and stuff screws up your system) all the time. I cannot game, I cannot download good apps, I cannot do anything that is not online based or can be backed up online. Apparently my battery state is stated as "good" on the system.
"... All of this in under one day..." Give it a few cycles over the next few days. It'll change. I've been using HyperDrive with ColonelX with the conservative governor tweaked for performance. Can't really say much about the battery life since I have the 10000mAh battery.
Sent from my HyperDrive SM-N900A/T
Dude, if it's all under one day. You need to let a ROM and kernel set In. You can't drive a car without wheels. Just give it 2 or 3 days it will begin to get better. That's what I think too but I give it some days to stabilised if you will . Then my battery goes from normal to good to great. It won't right away start getting great battery life. Unless you have a kernel your phone don't like and flash another it does like battery life improvements where almost instant at least in my case. Like now I'm getting Ok battery life. It's not the best. But it holds. I might switch kernels tonight to spice things up.
Sent from my SM-N9005 using Tapatalk
chuko303 said:
Dude, if it's all under one day. You need to let a ROM and kernel set In. You can't drive a car without wheels. Just give it 2 or 3 days it will begin to get better. That's what I think too but I give it some days to stabilised if you will . Then my battery goes from normal to good to great. It won't right away start getting great battery life. Unless you have a kernel your phone don't like and flash another it does like battery life improvements where almost instant at least in my case. Like now I'm getting Ok battery life. It's not the best. But it holds. I might switch kernels tonight to spice things up.
Sent from my SM-N9005 using Tapatalk
Click to expand...
Click to collapse
I meant the right now part is under a few days. Idk why i said all under one day (it was late night). This has beena problem since February at least
Trust me I know you have to let a ROM and Kernel set in but my phone keeps working harder than its supposed to. Screen off battery is good, so wake locks are not the problem. The problem is cpu wise something is messed up that it puts my cpu to drain huge amounta of battery
Even you tried another or different ROM still happens?
Lorettaa said:
Even you tried another or different ROM still happens?
Click to expand...
Click to collapse
Yes tried many roms and many kernels with many governors... i suspect its my battery but my battery state is good for some reason
I had this issue but it went away when I updated my phone to 4.2.2
Sent from my SM-N900T using Xparent Red Tapatalk 2
The rom and kernels might be the one messing your battery life, since your battery is in good state, but why not try replacing a battery if you have an extra and see the results...
Neroga said:
"... All of this in under one day..." Give it a few cycles over the next few days. It'll change. I've been using HyperDrive with ColonelX with the conservative governor tweaked for performance. Can't really say much about the battery life since I have the 10000mAh battery.
Sent from my HyperDrive SM-N900A/T
Click to expand...
Click to collapse
Lol I to have zerolemons battery and I must say I dont have to worry about on screen time I get more than 10 hrs...but yeah gotta let the roms and kernals sit in for a day to a week...
Sent from my SM-G900T using Tapatalk
Maybe you have the dreadful chip with "1". Mines a "3" so it's OK
Sent from my SM-N9005 using Tapatalk
the bigger the better?
chuko303 said:
Maybe you have the dreadful chip with "1". Mines a "3" so it's OK
Sent from my SM-N9005 using Tapatalk
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Click to collapse
How do you find that out?
There is an app that can report this value. The premise is that certain cpu's have different values which indicate how the cpu will perform. The problem is, the same cpu can over time end up reporting different values which pretty much means it is not really a set hardware value and most likely means nothing.
You can find the large thread about it if you look, but it was pretty much debunked as a really value at the time.
first download the new rom http://forum.xda-developers.com/showthread.php?t=2709867
put it on a sd card
make sure you have a custom recovery
1 go to setting back up and recovery do a reset from there
2 let the reset be done then restart the phone and go to recovery
from recovery do a full wipe factory restet
3 install the zip from the sd card
4 pick the apps you want with aroma installer and install compulsion kernel
4 finish installation and boot up
set up the phone and enjoy it bro.....
mrej201 said:
first download the new rom http://forum.xda-developers.com/showthread.php?t=2709867
put it on a sd card
make sure you have a custom recovery
1 go to setting back up and recovery do a reset from there
2 let the reset be done then restart the phone and go to recovery
from recovery do a full wipe factory restet
3 install the zip from the sd card
4 pick the apps you want with aroma installer and install compulsion kernel
4 finish installation and boot up
set up the phone and enjoy it bro.....
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Click to collapse
Nice battery life enhancer.
You have to let the rom settle before you can get accurate battery life akin to the rom and kernel. Trust me I know this as a fact. I have been flashing roms like crazy since the days of the Samsung admire and the rom takes days to settle.
messiahfreedom said:
You have to let the rom settle before you can get accurate battery life akin to the rom and kernel. Trust me I know this as a fact. I have been flashing roms like crazy since the days of the Samsung admire and the rom takes days to settle.
Click to expand...
Click to collapse
Yes he let it settle but still no good for him.
I have the same problem. 4.3 battery life was 6 hours screen time, 4.4 down to 3 hours screen time. Note 3 used to be my ideal, perfect phone. 4.4 ruined that.
hfuizo said:
I have the same problem. 4.3 battery life was 6 hours screen time, 4.4 down to 3 hours screen time. Note 3 used to be my ideal, perfect phone. 4.4 ruined that.
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Click to collapse
You made sure to toggle allows allow scanning off?
Toggle either power-saving or GPS only under location?
Power saving mode if applicable?
Turning of haptic feedback?
The always allow scanning seems to be the number one battery killer for me. I turned that off and noticed immediately better battery life. Almost akin to an extra minute per one percent, which adds up.
messiahfreedom said:
You made sure to toggle allows allow scanning off?
Toggle either power-saving or GPS only under location?
Power saving mode if applicable?
Turning of haptic feedback?
The always allow scanning seems to be the number one battery killer for me. I turned that off and noticed immediately better battery life. Almost akin to an extra minute per one percent, which adds up.
Click to expand...
Click to collapse
Yep, did all that stuff from day 1 back on 4.3. Updating to 4.4 was the most frustrating thing ever. Many people here report great battery life with 4.4, but many like myself had it slashed in half upon upgrading. It ruined an otherwise perfect phone.

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