Related
In several threads I've seen it recommended that you charge to 100% before flashing your phone. Are there any facts behind this or is it just voodoo?
What's the reasoning behind it?
Thanks,
-Brett.
Dont Die
If you phone dies whilst flashing it becomes a nice shiny brick! You can try and fix it but it wont be easy.
If you're at 100% there is little chance of the phone turning off.
zzoinks said:
In several threads I've seen it recommended that you charge to 100% before flashing your phone. Are there any facts behind this or is it just voodoo?
What's the reasoning behind it?
Thanks,
-Brett.
Click to expand...
Click to collapse
CustomRUU will not start when your battery is under 50%.
When your battery is over 50% loaded you can flash safely.
There is no reason why it should be fully loaded.
i would suggest it being more than the required 50%.. flashing a phone takes alot out of the battery....
I think I phrased my original question wrong: I understand that sufficient charge is needed for the actual act of flashing.... however, I've seen it suggested that having a 100% charge has positive effects even after the flash. i.e., it somehow makes your phone perform better post-flash.
Any truth to this?
Thanks for the replies so far!
-Brett.
Sounds like voodoo to me. You're not polishing a car, you're putting bits of information in places. It's either there, or not there.
zzoinks said:
I think I phrased my original question wrong: I understand that sufficient charge is needed for the actual act of flashing.... however, I've seen it suggested that having a 100% charge has positive effects even after the flash. i.e., it somehow makes your phone perform better post-flash.
Any truth to this?
Click to expand...
Click to collapse
No, it's not truth.
zzoinks said:
I think I phrased my original question wrong: I understand that sufficient charge is needed for the actual act of flashing.... however, I've seen it suggested that having a 100% charge has positive effects even after the flash. i.e., it somehow makes your phone perform better post-flash.
Any truth to this?
Thanks for the replies so far!
-Brett.
Click to expand...
Click to collapse
I have flashed ALOT of units in my PDA days.. never bricked a unit.
They have been from 50-100% in charge.
Used both card and USB flash.
No difference noticed.
Carlis.
I do not see any scientific fact in the 100% thing never done in my 1000+ flashes
zzoinks said:
Are there any facts behind this or is it just voodoo?
Click to expand...
Click to collapse
It's just voodoo. The point is just to be sure that you have enough power to prevent the phone from shutting down because that will crab it up and good.
If you look at the number of complete idiots here that simply cannot be bothered to read what are often very very simple instructions, it makes sense to make your point as simple as possible without a bunch of caveats.
'Nuff said.
Not just voodoo
I'll admit that I, personally, have not given much thought to this nor have I thoroughly tested it, but the reasons I've come to understand for fully charging your battery before flashing is to ensure that you get completely accurate battery readings post flash. It has nothing to do with the required 50% to flash. That is requirement is just as it sounds. 50%. I've never had a problem with my battery meter when I didn't flash at 100%, but I can see the logic in the claim
Not totally voodoo.
Having the battery at 100% seems to work better for the calibration of the battery indicator. After a Hard Reset it seems that the OS expects the battery to be at 100% and if it isn't you can get some interesting effects such as the battery charge dropping 40% in five minutes, or reading 100% until it's nearly dead. After a while this behavior sort of settles down but why put up with it if you don't have to?
I take reports of unusually fast battery drains with a grain of salt -- more often than not it's a charge calibration issue or an unusally active/buggy radio ROM that's the culprit.
Mind you, this isn't technically a flashing issue. You could probably flash at 50% battery and then charge it up before you do your first Hard Reset. Of course, if any of you are like me you want to play with a new ROM right away, so I rarely do this.
rob.ocelot said:
Not totally voodoo.
Having the battery at 100% seems to work better for the calibration of the battery indicator. After a Hard Reset it seems that the OS expects the battery to be at 100% and if it isn't you can get some interesting effects such as the battery charge dropping 40% in five minutes, or reading 100% until it's nearly dead. After a while this behavior sort of settles down but why put up with it if you don't have to?
Click to expand...
Click to collapse
I always flash on what ever battery i have left. If i have under 50% and something hot is out, i just wait until the 50% is there and flash... Havent noticed anything like above...
I probably never had the full 100%...
Couple questions;
Does rooting your phone = more drain on the batte? Seems like I got better battery life when it was bone stock.
Does themeing help with draining the battery?
Sorry if these are stupid questions but it seems like I had better battery life out the box on my phone. I'm running SYnergy r60 and it's themed with Eye Candy. I have been checking the things running in the background and it's doesn't seen like anything more is running then in stock. I have WiFi turned on at and work and get pretty good service in the building. But again it still seemed better stock.
gfausey211 said:
Couple questions;
Does rooting your phone = more drain on the batte? Seems like I got better battery life when it was bone stock.
Does themeing help with draining the battery?
Sorry if these are stupid questions but it seems like I had better battery life out the box on my phone. I'm running SYnergy r60 and it's themed with Eye Candy. I have been checking the things running in the background and it's doesn't seen like anything more is running then in stock. I have WiFi turned on at and work and get pretty good service in the building. But again it still seemed better stock.
Click to expand...
Click to collapse
If you concerned about battery life then you should try "Clean Rom & Clean kernel". They based on stock rom and provide good performance and very good on battery life.
Different roms will have different effects on battery.
I am stock, stock recovery, bootloader still locked - but rooted.
As far as rooting alone, i'm seeing no difference in battery life.
Once you go flashing things, it's a whole new ballgame.
The problem with flashing roms/kernels is that you are continuously doing it. So every couple days you flash a new rom, or kernel, or new mod. So your phone never really has time to collaborate and settle in. Technically you're suppose to give a kernel and rom a couple days before judging battery. But we rarely do that. Plus files can get left behind from previous dirty flashes that can affect battery life. There's just a lot more ways that battery life can take a hit when flashing roms/kernels, but it can also get you significantly better battery life.
gfausey211 said:
Couple questions;
Does rooting your phone = more drain on the batte? Seems like I got better battery life when it was bone stock.
Click to expand...
Click to collapse
Rooting itself makes no difference. Certain services and programs that require root could drain more battery but that is obviously optional.
gfausey211 said:
Does themeing help with draining the battery?
Click to expand...
Click to collapse
It could hurt or help it but only to a small degree. Black uses the least power to display and white uses the most. Overall, it isn't something to stress over too much.
bobloblaw1 said:
Rooting itself makes no difference. Certain services and programs that require root could drain more battery but that is obviously optional.
It could hurt or help it but only to a small degree. Black uses the least power to display and white uses the most. Overall, it isn't something to stress over too much.
Click to expand...
Click to collapse
Thanks for the info. I didn't think it would be a huge drain but wasn't sure.
Not sure if it's coincidence, but I reflashed r60 but didn't reflash Eye Candy and it seems the battery is doing much better.
for a few weeks, my one s battery cant pass through 2-2.5 hours of screen time although it used to be something like 4 hours.
i tried to full reset, didnt help.
even noticed that games are lagging, like music hero and subway surfers to the point it can fail me.
most of the time the screen brighness set on 30%, wifi mostly off, gps off, sync off. only 3g is on.
i got s4 version running 2.21 software stock locked unrotted nothing.
as it is from the manufacture.
i dont use alot of apps, mostly basic ones like whatsapp chrome shazam and few more.
i dont think its some bad app which draning my batt, also the phone is 2 month old.
all this time, the phone didnt do any problems but 2 days ago for the first time after unlock the screen phone had restart.
could it be that after 2 months my battery is dying?
If you say that games are lagging there could be something draining your cpu... This could also explain the battery drain.
In the battery stats, what app/task is draining most?
Well, screen by far... No special app drains..
pookipsy said:
Well, screen by far... No special app drains..
Click to expand...
Click to collapse
Try turning down your screen brightness.
If it's really bad I'd try a reset
Sent from my HTC VLE_U using xda app-developers app
BetterBatteryStats and Carat. Take a BBS dump after a day's use and you should see what's causing major issues. Carat will take care of anything else after a few weeks by showing you what apps are using serious battery power.
it is unlikely that she dies. What radio are you using?
1.06s.50.02.27_2_10.08.50.04L
Why dont you install a Custom ROM for testing if this problem still shows up ? Like someone mentioned above something is fu*** up your CPU for some reason and this is the reason why your battery is going down very fast.
Some questions:
- Do you run any "battery saver" or any other app in the background (except Facebook,WhatsApp,GMail,..)
- Do you charge your battery from totally 0% (when your phone doesnt boot anymore) to full 100% ? It could be a battery de-calibration but this not really explains your lagging problems
i dont want a custom rom because i still want my warranty.
i dont run any battery saver app in background.
i charged the phone from 0 to 100 few weeks ago.
for 2 days im trying to be on gsm only and its seems battery have been improved by almost an hour.
there are less lags in games also and the device is feeling faster.
could be a radio problem?
i have full reception most of the time.
maybe the diztronic skin interrupting radio or something?
in few days carat will give me a report and ill see what he suggest.
pookipsy said:
i dont want a custom rom because i still want my warranty.
i dont run any battery saver app in background.
i charged the phone from 0 to 100 few weeks ago.
for 2 days im trying to be on gsm only and its seems battery have been improved by almost an hour.
there are less lags in games also and the device is feeling faster.
could be a radio problem?
i have full reception most of the time.
maybe the diztronic skin interrupting radio or something?
in few days carat will give me a report and ill see what he suggest.
Click to expand...
Click to collapse
I understand your argument but if you follow the guides step by step you will succeed. Even if you fail,you still have multiple ways to recover your phone. My broadband chip was broken and i lost my IMEI (Galaxy S1) and i had a custom ROM installed and the support still repaired it.
Maybe you need to calibrate your battery. If you only charged it once it doenst really helps.
Dont know,maybe it could be a radio problem.
You have a skin installed? If you rooted your device the warranty still could be gone.
i dont want to root the device cuz of warrenty.
i have diztronic case from amazon.
and i heared recharging the battery from 0-100 could harm your battery for long term and shorten the battery life.
pookipsy said:
i dont want to root the device cuz of warrenty.
i have diztronic case from amazon.
and i heared recharging the battery from 0-100 could harm your battery for long term and shorten the battery life.
Click to expand...
Click to collapse
No. I don't know where you got that from but It's crap. It doesn't harm your battery, in fact it is better than charging from 60%.
GSM only does NOT affect gameplay. Maybe battery, but not gameplay. Somehow I think you're trolling everyone.
Sent from my locked, tampered ville
im not trolling, i love this phone and really wondered maybe i did something wrong with it..
gsm only shouldnt affect games but maybe its affecting something else which affect games.
maybe its a software issue or drivers.
Guys, stop being idiotic. "Battery calibration" might as well be telling the person to charge the phone while hopping on one foot and rubbing his other.
It's quite simple. Post screenshots of the top of the list for partial wakelock, process, and kernel wakelock. This will help diagnose battery drain problems. Carat will slowly build a list of battery drainers that you can also use to identify issues.
And please make sure you're not using any task killers or similar apps as they cause more harm than good and are big no-no's on Android.
Speaking of Custom ROMs, I'm not sure what the rules are where you live, but where I live, unlocking the bootloader does not void the warranty, so flashing custom ROMs is perfectly safe, just make sure to make a backup first.
And yes, battery calibration is not possible, as these batteries doesn't have any "memory".
Where i live the warranty void sadly.
Im still waiting for carat report but for this moment, using gsm only + wifi instead of auto wcdma/gsm, seems to make my battery life normal - almost 4 hours screen time.
Actually, I spoke too soon.
So, my battery is playing funny. It stayed at 100% battery for 8 hours unplugged, then drained itself to 43% (over the course of 4 or so hours)... and shut off at that point. The battery voltage is reported as being 6mV.
Running CM10 latest. Any thoughts?
And most importantly - are there any safety concerns given that the battery voltage is being reported incorrectly by the OS?
small bump due to edit of first post.
Accophox said:
small bump due to edit of first post.
Click to expand...
Click to collapse
You could try a factory reset and don't forget to backup your stuff. There should be no safety issue, its either the OS or the battery is dying.
Three weeks ago I had it not charge past 86% -- a wipe of the battery stats seemed to have fixed, for I haven't seen it since. (There's no way to tell if it actually did anything, but it doesn't hurt to try either.) As far as safety goes, well, it might get a bit warm, but it won't burn down your house.
Welp, small update. Haven't had the time to do much regarding tablet until now. It's now turning off when the battery reads ~55% percent. So my 55% is 0% (it'll fail to turn on). So I guess my battery is dying in the machine. Which sucks. Cause it's no more than 4 months old at this point. And warranty is out of the question, no squaretrade in Canada - and the bootloader is unlocked.
I can tell you one company that I'm not buying another tablet from, ever. Hardware issue, but cause the software is modified... (yadda yadda yadda - I know, I unlocked it... but still, this is clearly a hardware problem and probably would have happened anyway given that my workload remains the same).
Accophox said:
Welp, small update. Haven't had the time to do much regarding tablet until now. It's now turning off when the battery reads ~55% percent. So my 55% is 0% (it'll fail to turn on). So I guess my battery is dying in the machine. Which sucks. Cause it's no more than 4 months old at this point. And warranty is out of the question, no squaretrade in Canada - and the bootloader is unlocked.
I can tell you one company that I'm not buying another tablet from, ever. Hardware issue, but cause the software is modified... (yadda yadda yadda - I know, I unlocked it... but still, this is clearly a hardware problem and probably would have happened anyway given that my workload remains the same).
Click to expand...
Click to collapse
Have your tried wiping the battery stats under Recovery? I had this with my SGS2, but the battery life in itself was quite good. Wiping the stats made my SGS2 read the battery's data anew and fixed the issue of funny percentages being reported (it also kept recharging out of nowhere, which is a hint in itself that something has gone awry with the calibration).
MartyHulskemper said:
Have your tried wiping the battery stats under Recovery? I had this with my SGS2, but the battery life in itself was quite good. Wiping the stats made my SGS2 read the battery's data anew and fixed the issue of funny percentages being reported (it also kept recharging out of nowhere, which is a hint in itself that something has gone awry with the calibration).
Click to expand...
Click to collapse
Nope. Already tried clearing battery stats and doing the full discharge/recharge routine. As I said - it's reporting the incorrect battery voltage... 8mV, which is physically *impossible* for a lithium-ion cell. I'm inclined to believe that my battery is more or less shot. After 4 months.
Accophox said:
Nope. Already tried clearing battery stats and doing the full discharge/recharge routine. As I said - it's reporting the incorrect battery voltage... 8mV, which is physically *impossible* for a lithium-ion cell. I'm inclined to believe that my battery is more or less shot. After 4 months.
Click to expand...
Click to collapse
That's a shame. I was hoping the issue would be with the stats... Guess your battery indeed is dead as a dodo, and you'd better off contacting ASUS for a replacement. I just want to add it is not necessarily their 'fault' -- batteries do die every once in a while, and although I agree that four months is way too quickly, sometimes things like this just slip by, even with good QC (which I do nto pretend ASUS to have, mind you ).
MartyHulskemper said:
That's a shame. I was hoping the issue would be with the stats... Guess your battery indeed is dead as a dodo, and you'd better off contacting ASUS for a replacement. I just want to add it is not necessarily their 'fault' -- batteries do die every once in a while, and although I agree that four months is way too quickly, sometimes things like this just slip by, even with good QC (which I do nto pretend ASUS to have, mind you ).
Click to expand...
Click to collapse
Given it has an unlocked bootloader, Asus will be charging me probably the cost of a new tablet. Overall, I think I'm more or less done with 10" tablets. Nexus 7 is good for the road, and a lightweight laptop will do more for me than a new 10" tablet, even if the cost is higher.
Just wanted to report similar behavior in my tablet.
It stays at 100% after a full charge for like 30 minutes during gaming usage. It used to start dropping from 100% at 8200mv but now doesn't start dropping until 8000mv.
it shuts down at 15%, so it pretty much feels like I have a +10-15% offset.
Using CleanRom inheritance and clemsyns kernel, but after reading this thread and http://forum.xda-developers.com/showthread.php?p=35345450 i feel that this is a sign that my battery is going to kick the bucket in the near future. My tablet is also about 4 months old.
Going to try the usual steps, reflash, return to stock, different rom, factory reset, etc., but I have little hope.
Sent from my ASUS Transformer Pad TF700T
So, I don't know if my problem here in particular is unique or new, but this issue started about a week ago.
My Nexus 5, is rooted, and running Cyanogenmod 11, (was) running with ART Runtime, and I was getting pretty decent battery life with the phone. Usually nothing less than 2-3 hours of screen on time, with pretty typical settings (location off, sync off, etc).
Out of nowhere, about last week my battery life began to be much worse. It'll drain from full to 20% in a matter of 5 or 6 hours, and none of my usage really changed at all. I'm well aware of the mm-qcamera-daemon, but according to my battery usage page, it still isn't really in use or bothering my battery life.
What could cause this sudden change? I'm here at work plugging my phone in half way through the day, when normally I can go about 2 days without charging.
I've tried factory resetting, I've turned off ART, I've tried changing the governor on the CPU, and many other things. Is my battery simply going bad?
If anything has a solution for me, it'd be a blessing.
Thanks.
speedanderson said:
So, I don't know if my problem here in particular is unique or new, but this issue started about a week ago.
My Nexus 5, is rooted, and running Cyanogenmod 11, (was) running with ART Runtime, and I was getting pretty decent battery life with the phone. Usually nothing less than 2-3 hours of screen on time, with pretty typical settings (location off, sync off, etc).
Out of nowhere, about last week my battery life began to be much worse. It'll drain from full to 20% in a matter of 5 or 6 hours, and none of my usage really changed at all. I'm well aware of the mm-qcamera-daemon, but according to my battery usage page, it still isn't really in use or bothering my battery life.
What could cause this sudden change? I'm here at work plugging my phone in half way through the day, when normally I can go about 2 days without charging.
I've tried factory resetting, I've turned off ART, I've tried changing the governor on the CPU, and many other things. Is my battery simply going bad?
If anything has a solution for me, it'd be a blessing.
Thanks.
Click to expand...
Click to collapse
If i was on your place I'd return it back to stock and see how my phone would react. Afterwards if issue has to do anything with hardware I'd unroot + relock bootloader and give it to my provider for a warranty and explain them my problems.
MaCroX95 said:
If i was on your place I'd return it back to stock and see how my phone would react. Afterwards if issue has to do anything with hardware I'd unroot + relock bootloader and give it to my provider for a warranty and explain them my problems.
Click to expand...
Click to collapse
Hmm..
That's not a bad idea. I think I'll flash stock back on to it when I get home tonight. You know, I have insurance on the phone, but I was expecting to have to exchange it for breaking the phone's screen, not for my battery going bad. I hope Stock ROM fixes the problem, or hell.. maybe whenever 4.4.3 ROMs start coming out, that might do the trick to. I've been careful to take care of this phone, since I broke my Nexus 4 two months after I got it.
Thanks.
speedanderson said:
Hmm..
That's not a bad idea. I think I'll flash stock back on to it when I get home tonight. You know, I have insurance on the phone, but I was expecting to have to exchange it for breaking the phone's screen, not for my battery going bad. I hope Stock ROM fixes the problem, or hell.. maybe whenever 4.4.3 ROMs start coming out, that might do the trick to. I've been careful to take care of this phone, since I broke my Nexus 4 two months after I got it.
Thanks.
Click to expand...
Click to collapse
You're welcome. I hope that you solve your problem as soon as possible. If you take a look how your phone does with stock on your diagnose of a problem would be much easier and from than on if the problem was in software you can try some other roms and kernels. I personally am not really a fan of cyanogenmod 11 at least not for nexus 5 since I've had few bugs using for a few days.
MaCroX95 said:
You're welcome. I hope that you solve your problem as soon as possible. If you take a look how your phone does with stock on your diagnose of a problem would be much easier and from than on if the problem was in software you can try some other roms and kernels. I personally am not really a fan of cyanogenmod 11 at least not for nexus 5 since I've had few bugs using for a few days.
Click to expand...
Click to collapse
Well, I really liked Paranoid Android for my Nexus 4, and I've had no issues until recently with CM11. :\
I guess stock is going to be my best bet though. I just really hope I can deal with the battery drain issue from mm-qcamera-daemon or whatever.
speedanderson said:
Well, I really liked Paranoid Android for my Nexus 4, and I've had no issues until recently with CM11. :\
I guess stock is going to be my best bet though. I just really hope I can deal with the battery drain issue from mm-qcamera-daemon or whatever.
Click to expand...
Click to collapse
I've been using SlimKat in combination with Faux's custom kernel for a few days now and I must say that peformance is as smooth as it was never before, speed is absolutely phenomenal and my battery life is more than pleasing (around 24H + 3-4 Hrs of screen on time).
MaCroX95 said:
I've been using SlimKat in combination with Faux's custom kernel for a few days now and I must say that peformance is as smooth as it was never before, speed is absolutely phenomenal and my battery life is more than pleasing (around 24H + 3-4 Hrs of screen on time).
Click to expand...
Click to collapse
Well, that sounds like exactly I want. I'm not opposed to trying another custom ROM either. Can you PM me a link to the thread with whatever particular build you're using?
If it's efficient and up to 4 hours of on screen time, sounds like exactly what I need.
I'm more than happy to ditch my ROM if I can get better performance, haha.
speedanderson said:
Well, that sounds like exactly I want. I'm not opposed to trying another custom ROM either. Can you PM me a link to the thread with whatever particular build you're using?
If it's efficient and up to 4 hours of on screen time, sounds like exactly what I need.
I'm more than happy to ditch my ROM if I can get better performance, haha.
Click to expand...
Click to collapse
ROM: http://www.slimroms.net/index.php/d...4-slim-hammerhead-4-4-2-build-4-official-3700
KERNEL: http://faux.romhost.me/hammerhead/kk44/
I'm using non-ultimate version of the kernel which means that it doesn't support overclocking and I'm also using a bit older build which is very stable and works flawlessly for me.
Ah, great. I'm actually going to download it now, while I'm here at work. Also, does this particular ROM work at all with ART Runtime, because if possible, I'd like to continue using it.
speedanderson said:
Ah, great. I'm actually going to download it now, while I'm here at work. Also, does this particular ROM work at all with ART Runtime, because if possible, I'd like to continue using it.
Click to expand...
Click to collapse
It does support ART. I didn't try it on this ROM though so I cannot tell exactly whether it's working or not. You'll have to test it by yourself but I am pretty sure that if your phone doesn't have any hardware issues that you won't be disappointed with the performance of ROM + Kernel with or without ART! Hit thanks if I helped you anyhow :laugh:
PS: Though since the ART is still in beta phase of development there is a possibility that it has caused you so much trouble with battery =)
speedanderson said:
So, I don't know if my problem here in particular is unique or new, but this issue started about a week ago.
My Nexus 5, is rooted, and running Cyanogenmod 11, (was) running with ART Runtime, and I was getting pretty decent battery life with the phone. Usually nothing less than 2-3 hours of screen on time, with pretty typical settings (location off, sync off, etc).
Out of nowhere, about last week my battery life began to be much worse. It'll drain from full to 20% in a matter of 5 or 6 hours, and none of my usage really changed at all. I'm well aware of the mm-qcamera-daemon, but according to my battery usage page, it still isn't really in use or bothering my battery life.
What could cause this sudden change? I'm here at work plugging my phone in half way through the day, when normally I can go about 2 days without charging.
I've tried factory resetting, I've turned off ART, I've tried changing the governor on the CPU, and many other things. Is my battery simply going bad?
If anything has a solution for me, it'd be a blessing.
Thanks.
Click to expand...
Click to collapse
Batteries Can't throttle. However the do degrade with use. You can replace the battery with ease.