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Hi all,
I folowed both part 1 and part 2 to root and unlock nand on my evo. I loaded the freshevo 0.3 ROM and applied the 4g fix from flipz. Now, my Evo lasts about 5 hours in standby before the battery is dead.
My Evo used to last most of the day before I rooted it. Has anyone experienced similar issues?
Thanks,
Rayden1000
Did you flash the new radio?
Did you leave 4g on?
Gps?
Bluetooth?
What are your sync settings for social network, weather, news?
We need more info than my battery sucks.
Flashed the new radio.
4G is on - as before rooting.
Bluetooth, WiFi is off.
GPS is on - as before rooting.
Syncing is at 4 hour intervals.
Exchange is "as items arrive" - as before rooting.
I know that everyone complains about the battery on the EVO, but my phone is dead after just a few hours of non-usage.
My Up time and Awake time are almost the same, so I think something is preventing the phone from sleeping. An hour ago I went to some setting that listed which app is using what percentage of the battery. I can't remember where I went to check that now, and it wasn't the stock battery settings app. It said that HTC Sense is using 97%.
Thanks,
Rayden1000
Try this
http://forum.xda-developers.com/showthread.php?t=700601&highlight=100%+time
Also you might have a bug with 4g where it is constantly connecting or trying to connect. See if the fix above works. If not try damagecontrols rom and see if its any better. Or you can try disabling 4g and see if there us a huge huge huge gain.
I do know that right now some of the custom roms have had 4g issues. I'm not in a 4g area so its hard for me to test.
Thanks Aridon,
I already checked out that thread, my phone is set to CDMA auto.
And yes, I did have the 4g bug when I unlocked NAND through method 2. I found the fix that flipz posted and that has fixed the 4g issue. I also flashed the freshevo 0.3 rom that has the 4g fix built in.
I will try flashing the 4g fix again right now, but does anyone have any other suggestions? It seems that battery performance decrease is a common issue after flashing custom ROM's.
Rayden1000
You should consider doing the steps in that thread regardless if what it shows. The hero had a display bug in that regard for some and perhaps so do some evo. Seems odd but there are differences because when you start playing with kernels it will boot on 002 devices but not others so there are differences.
I'd do it, set it and reboot. Don't go back in to see if it changed just start a new battery test And check for improvement
turn off 4g, my evo has everything yours does! but end of the day i get home and still have over 50% battery life left! if you have 4g on it drains the crap out of battery. only turn it on when your going to use it!
chamelieon said:
turn off 4g, my evo has everything yours does! but end of the day i get home and still have over 50% battery life left! if you have 4g on it drains the crap out of battery. only turn it on when your going to use it!
Click to expand...
Click to collapse
I do understand that 4g decreases the battery life significantly. What I am trying to say in this thread is that after I rooted and unlocked nand on my evo, the battery life is MUCH MUCH worse then before rooting. My phone's battery now goes from 100 to 0 in about 4 hours - while I am not using it at all.
I am just trying to figure out what process is running all the time and prevents the phone from going to sleep.
Rayden1000
Dude download Overclock Widget. Do a google search for: Overclock Widget HTC Evo.
I swear on everything I love that after I installed it and went through the settings my battery lasted 11 hours today. I still had 23 percent left and I streamed some videos on the web, listened to music, played around all day with my phone. It really works and some people claim 30 plus hours of battery life.
It works and I will post a screenie tomorrow of the proof.
Whatever it was, installing Damagecontrol 3.1.2 ROM "appears" to have fixed the issue. My phone has been in standby for about an hour and I have 93% battery left. I will leave it alone for the night and will post the battery status tomorrow morning.
Thanks to everyone for trying to help.
Rayden1000
rayden1000 said:
Whatever it was, installing Damagecontrol 3.1.2 ROM "appears" to have fixed the issue. My phone has been in standby for about an hour and I have 93% battery left. I will leave it alone for the night and will post the battery status tomorrow morning.
Thanks to everyone for trying to help.
Rayden1000
Click to expand...
Click to collapse
Baked snack ROM in my observation gets THE BEST battery life of all the roms out thus far.
rayden1000 said:
Whatever it was, installing Damagecontrol 3.1.2 ROM "appears" to have fixed the issue. My phone has been in standby for about an hour and I have 93% battery left. I will leave it alone for the night and will post the battery status tomorrow morning.
Thanks to everyone for trying to help.
Rayden1000
Click to expand...
Click to collapse
I may have spoken prematurelly, this morning the battery is dead again. I have tried numerous ROMs with the same result. I also tried old radio ROM ans new radio ROM.
Has anyone been successful at following both part 1 and 2 of rooting and maintaining decent battery performance?
Rayden1000
Not to sound noobish, but did you already disable GTalk auto sign in and then sign out?
Diesektor said:
Not to sound noobish, but did you already disable GTalk auto sign in and then sign out?
Click to expand...
Click to collapse
It's off. I don't use it.
Rayden1000
rayden1000 said:
I may have spoken prematurelly, this morning the battery is dead again. I have tried numerous ROMs with the same result. I also tried old radio ROM ans new radio ROM.
Has anyone been successful at following both part 1 and 2 of rooting and maintaining decent battery performance?
Rayden1000
Click to expand...
Click to collapse
Did you NOT just read my above post. I clearly gave you a fix SMH. Here's proof of what I'm talking about:
I took a screenshot with the ShootMe app. I'm currently running Fresh's latest ROM. The screenshot indicates that I had it off the charger for over 14 hours. I used my phone today to send a lot of text, skyfire, streaming flash websites, etc. By the way I have about 40-50% battery left.
Installed overclock widget, set it to run at around 247 mhz at all times - same result. Evo battery is dead after about 4-5 hours. Does anyone have the original ROM for the Evo? I tried running the RUUxxxxx.exe files, but they all fail - probably due to me rooting and unlocking nand, therefore modifying the file system.
Rayden1000
I've been running Fresh 0.3 for a few days now and haven't seen a problem. Have you tried getting a task manager and making sure there isn't a program running in the background causing all this? Also, is your phone hot... if it is, it means you go something taking up some major cpu time.
I had a similar issue with my Hero, the cause was it was trying to sync the calendar over and over non-stop. You should look at your account syncing also, there could be a problem there.
Sounds as if you have something running in the background that is killing your battery. When you are flashing your roms, are you doing a wipe first or just flashing over whatever you had before?
I don't see how you're running overclock widget and getting bad battery life. Download Advanced Task Killer and kill those tasks.
I also had an issue like that after installing some ROM (I forget now what one, since it was a while ago) and my battery died over night while I was sleeping. I don't really know how (if I did) fix it, but I wiped everything, factory/data/dalvik/battery stats (whatever that is) all those options, then installed a new ROM and it seemed to work fine.
As for the overclock widget, I downloaded that and tried to use it, but it didn't seem like it worked. It just didn't seem to stick and I didn't really see any increase (maybe even a decrease) in battery life. Probably the best thing that you could do is get a task killer and see if there is something running that needs to be killed. The awake time shouldn't be anywhere near the uptime
I just recently flashed my phone to gingerbread 2.3.3 (cyanogenmod 7.0.3) and my battery life took a turn for the worst.
It used to last 24 hours or more, but now it only lasts 6-10. It even does it when the screen is off at night, ill wake up and turn it on and its dead.
Also if it helps my kernal is 2.6.29.6-b11.
(yes i am a noob)
there has been long discussions regarding problems with deep sleep (state when phone uses very little cpu when screen is off), this cud be a reason for ur bad battery life, also if ur using any custom kernels. to see if ur getting deep sleep, download an app called cpu spy from market and that tellse u how many hours deep sleep ur getting. or it cud be something else entirely, ive always stuck to a custom stock 2.1, so i cant really advise too much. search for deep sleep and follow ny instructions provided in those threads.
edit:
have a read thru this, it might possibly help u http://forum.xda-developers.com/showthread.php?t=1100786
edit again: try disabling automatic time and date set up to manual, as ive heard some people had some acces doing this, but as i sed have read thru that thread.
tried to use cpu spy but it FCs on my phone. unchecked auto date and time. im looking into other kernels that may yield better battery, havent found 1 yet that addresses deep sleep issue.
thanks for suggestion dude
Is it the new version? Cause my battery is good.
Hey, I've also heard of a bug in Google Maps. It is continuously running without letting the phone sleep. That's my problem with my battery right now.
seem to have fixed it, i turned auto date and time off and bluetooth and the battery lasts MUCH longer, 24hr plus!
Debating about whether to install CM7, but there have been a few problems with it. I'm having a tough time finding the current state of the following issues:
1. Sleep of Death - Nook goes to sleep and doesn't wake up, forcing a reboot. There seems to be some debate over whether this is solved. One of the threads indicates that it's not a problem if you turn wifi off with the screen. Can anyone confirm?
2. Battery drain - Battery drains at 2%-3% per hour in sleep mode. I believe this is resolved. Can anyone confirm?
3. Premature Battery Death - Battery dies at various points over 0%. There seem to be various utilities for resetting battery stats, etc., but I can't figure out whether or not this is resolved.
4. Screen stays on when plugged in - Forced to hit the screen off button when plugging in the Nook. I've seen recent complaints about this one, so I'm assuming it's not resolved.
I did go through the threads and am confused about whether these issues still exist, so I figured I would try the Q&A section. If someone with CM7 wouldn't mind jumping in, that would be great. Thanks!
1. Maybe, I'm a lucky one but I haven't had problem with SoD regardless wifi on or off. I've been using nb100 and up, and now at 138
2. Using 138, i got 2-3% drop overnight, about 8 or 10 hours. With 120, zero dropped
3. Not experienced yet since I never let it down to sub-5
4. Mine seems act the opposite way: screen off, plug in to charge, screen automatically on, have to press power button to put screen off again.
1. I haven't seen this in recent nightlies.
2. Fixed; NC now deep sleeps when unplugged, even with WiFi on.
3. Fixed as far as I know.
4. Mine acts like yours and votinh's both; these are not mutually exclusive. If you plug in while on, the screen eventually dims instead of going off. If you plug in while off, the device turns on, sometimes just the backlight. I'd call this one minor, especially in relation to the other issues.
511pf said:
Debating about whether to install CM7, but there have been a few problems with it. I'm having a tough time finding the current state of the following issues:
1. Sleep of Death - Nook goes to sleep and doesn't wake up, forcing a reboot. There seems to be some debate over whether this is solved. One of the threads indicates that it's not a problem if you turn wifi off with the screen. Can anyone confirm?
2. Battery drain - Battery drains at 2%-3% per hour in sleep mode. I believe this is resolved. Can anyone confirm?
3. Premature Battery Death - Battery dies at various points over 0%. There seem to be various utilities for resetting battery stats, etc., but I can't figure out whether or not this is resolved.
4. Screen stays on when plugged in - Forced to hit the screen off button when plugging in the Nook. I've seen recent complaints about this one, so I'm assuming it's not resolved.
I did go through the threads and am confused about whether these issues still exist, so I figured I would try the Q&A section. If someone with CM7 wouldn't mind jumping in, that would be great. Thanks!
Click to expand...
Click to collapse
1) I get SOD about once a day regardless of how I have it set up. It does happen less with wifi on sleep only but at work I need to push data, so my wifi is on all the time and...it's an issue, not terrible but annoying none the less.
2) Battery drain, I get about 36 hours if I use it lightly, but I tend to charge it nightly because I can't take a chance of heavy use at work and loosing it.
3) PDB, never had this problem.
4) The screen turns off by just hitting the screen off button. This isn't a big a deal actually, since you gotta plug the thing in, another button isn't a big deal. I have katecca screen lock and off in my bar at the bottom, so it's easy to turn off. I also have the nook power off widget but I haven't used it much.
That's great. Thanks a lot for the responses. Really helpful.
I have only had it CM7 on my nook for one day, so im not sure about the battery issue. But i know i put it down around 10pm last night with less then half a battery and i got home from work around 3pm and it had about 25% batt left.
Besides that sometimes when i plug it in it stays lit up. but thats a "meh who cares" to me at least.
Running 7.1.0 RC1 with Dal's OC, On Demand, with lowered Voltage on the steps
1) I've only had one SOD ever (knock on wood), it seems to be mostly cleared up
2) Battery drain has not been a problem for me. On .29 it was more only 1%/hr for battery drain.
3) I haven't experienced early battery death at all
4) It isn't a big deal, especially if you charge with the provided outlet adapter for quick charge. Don't see this preventing you from installing CM7.
If these stats are correct from ASI (I'm hoping they are, they sound right), I'm at 76% after 3 days, 19 hours uptime, and 7 hours of it without sleep.
I say go for it. Even if it is off SD (mines on emmc) it is still a much better experience than stock/rooted. I doubt anything will make me change from CM7, unless ICS becomes a viable option in the future.
Just a follow up on this. I installed CM7 and have not had a Sleep of Death, have normal battery drain comparable to stock rooted, and have not had premature battery death. The screen does come on when I plug the Nook in, but like everyone mentioned, I just turn it off and it's no big deal.
So far, my wifi actually reconnects more reliably than on stock rooted 1.1. I'm overclocked to 1200 Mhz, with no voltage or other adjustments.
Following up again - I get a SOD or a reboot about every five times I turn off the screen in CM7. I tried to use Tasker to turn wifi off with the screen, which has solved the problem for some people but this made no difference at all. I was running a nightly from late July and updated to another from late August (173?) but the problem hasn't gone away. I may try Stock 1.2 rooted.
511pf said:
Following up again - I get a SOD or a reboot about every five times I turn off the screen in CM7. I tried to use Tasker to turn wifi off with the screen, which has solved the problem for some people but this made no difference at all. I was running a nightly from late July and updated to another from late August (173?) but the problem hasn't gone away. I may try Stock 1.2 rooted.
Click to expand...
Click to collapse
I had no SODs from almost a week with n165; I upgraded to n171, got an SOD first time I put it down for a while, so I reflashed n165 and I'm sticking with it until I hear of something I need.
WiFi always on.
As always, YMMV.
Sent from my NookColor using XDA Premium App
Just a little update:
Since using nb169, I got a few SoD, did update again to nb173, still got hit occasionally.
I never have this kind of issue before but lately.
The changes I made
a. Played around with ADW Launcher setting (especially Desktop Animation)
b. Recently installed Simi Clock and updated some apps (such Nook app)
c. Recently having 8GB uSD card plugged in.
For some reason, I don't think a. and b. causing problem but c.
can you run cm7 with the 1.2 or 1.3 updates from b&n? im on a autonooter 1.1 and have been wanting to move up to something better especially if i can have flash finally.
miss_october said:
can you run cm7 with the 1.2 or 1.3 updates from b&n? im on a autonooter 1.1 and have been wanting to move up to something better especially if i can have flash finally.
Click to expand...
Click to collapse
CM7 is custom Gingerbread-based ROM, it has nothing to do with stock ROM and there is absolutely no relationship between the two (except they are both Android OS)
votinh said:
CM7 is custom Gingerbread-based ROM, it has nothing to do with stock ROM and there is absolutely no relationship between the two (except they are both Android OS)
Click to expand...
Click to collapse
thanks for the response
One last (I think) follow up. I installed stock rooted 1.2 thinking it CM7 causing me problems over the last month. Turns out I had the same problem on CM7.
I read my Nook before I go to sleep, so it's often dark in the room. I turn the brightness WAY down. The problem ended up being the Adjbrightness "Lock brightness so other applications can't change" setting. It has something to do with screen dimming when turning off the screen. This setting being on was causing frequent reboots both on CM7 and stock rooted 1.2. I ended up going to ScreenFilter instead, and the problem has completely gone away at least so far.
511pf said:
Debating about whether to install CM7, but there have been a few problems with it. I'm having a tough time finding the current state of the following issues:
1. Sleep of Death - Nook goes to sleep and doesn't wake up, forcing a reboot. There seems to be some debate over whether this is solved. One of the threads indicates that it's not a problem if you turn wifi off with the screen. Can anyone confirm?
2. Battery drain - Battery drains at 2%-3% per hour in sleep mode. I believe this is resolved. Can anyone confirm?
3. Premature Battery Death - Battery dies at various points over 0%. There seem to be various utilities for resetting battery stats, etc., but I can't figure out whether or not this is resolved.
4. Screen stays on when plugged in - Forced to hit the screen off button when plugging in the Nook. I've seen recent complaints about this one, so I'm assuming it's not resolved.
I did go through the threads and am confused about whether these issues still exist, so I figured I would try the Q&A section. If someone with CM7 wouldn't mind jumping in, that would be great. Thanks!
Click to expand...
Click to collapse
I try to stay up to date with the latest nightlies.
1) This is not completely solved. It's rare now (I think it was issues with WiFi), but it has still happened to me recently.
2) Battery drain was fixed with kernels that support Deep Sleep correctly. Not any 7.0.x builds, only 7.1.x+ (RC1) and nightlies have fixed kernel. So this shouldn't be an issue (unless you have a rogue app that is keeping the CPU active, which would prevent Deep Sleep. The "CPU Spy" app will let you see if this is working correctly).
3) This is better, but still a problem. My Nook Color will just switch off at 4% battery now. It use to switch off when I was a lot higher. It's not supposed to do that. It's supposed to gracefully shutdown when low. I have several iOS and Apple devices, so I'm use to things shutting down correctly when low. My Nook Color always just randomly powers off.
4) This isn't a big deal. The screen comes on when charging, but you can turn it off if you want. It stays dim, and the Nook Color charges fine. Dalingrin (the kernel developer guy) said leaving the screen on was a fix to some nasty crash.
#3 is the biggest issue to me, as I've been in the middle of something when my Nook Color randomly powered off. Clearing battery stats, rebooting, etc - none of that makes it perfect.
#1 use to be the biggest problem, but it's very rare for me now.
#2 has been fixed, and #4 doesn't bother me.
stolenmoment said:
I had no SODs from almost a week with n165; I upgraded to n171, got an SOD first time I put it down for a while, so I reflashed n165 ...
Click to expand...
Click to collapse
I misspoke; n165 SOD's on me too, so I conclude that I dl'd 165 and didn't flash it; I reflashed n161 and have been stable since.
I keep WiFi on for email and podcast updates.
I've always got an 8G uSD card in.
Sent from my NookColor using XDA Premium App
Prior to ICS my tf101 would last a good 3-4 days on a fully charged battery with my normal usage during the week. Yesterday I installed ICS went to sleep with just over 50%, it had suffered some heavy usage yesterday, and woke up to a completely flat and switched off tablet this morning. This is very unusual performance for my tab.
When I installed ICS I did a factory reset to clean up my tab so only have a pinch of the apps I had previously installed. One thing I did notice is on the battery tab of system settings the tablet was awake 100% of the time were traditionally it would only have a blue mark were it was in use on the awake line. Battery usage data is unavailable, too, so cant see what is causing tablet not to sleep.
Any suggestions?
I would wait until it settles a bit more, plus wait for a custom rom. It probably has some bug, seeing as it is the first ICS for our device.
I also notice some battery drain last week
on HC and ICS
right now i reverted back to honeycomb
ill update you later
if anything changes to me
MyZine Widget
Got rid of the MyZine widget and my tablet now goes to sleep in standby. I noticed, when browsing the running apps list, that the app kept 'restarting' so it could buggy or at the least was having a problem with my tab.
Prior to ICS my battery drain was crazy, especially if I leave wifi on. Not anymore, it's back to normal consumption like I had before the last HC firmware update.
I had the same problem this morning.
take cpu spy to have a look if the tablet goes into depp sleep.
https://market.android.com/details?...251bGwsMSwxLDEsImNvbS5idmFsb3Nlay5jcHVzcHkiXQ..
i had to reboot and then everything was fine...
I've still got problems with my tab. Returned to it after a few hours non-use and it had shutdown itself. Battery Drain still seems an issue too. I'll install that app and see what it reports.
Check WiFi disconnection policy and if GPS is disbled.
Here I am trying to get answers to exactly the op's problem. Everything went smooth installing ics. Even wiped data.
Woke up this morning to a very dead battery. Went to sleep at 83%. Interestingly, the battery graph show nothing after about 80%. No indication on the graph of total discharge...and no app usage. Just straight from 80 to zero.
I can't determine if it's a hung app or what....I've installed almost nothing. And it looks like the tablet drained while it was OFF!
https://www.dropbox.com/sh/t0gmko26t7wj41m/fIty0T1ySi/Screenshot_2012-02-25-07-56-17.jpg
Sorry for the link....I could not get the damn picture posted for the life of me...despite 45 minutes worth of my time.
i also woke up to a dead battery this morning. it was 50%+ when i left it on standby, wifi & gps switched off. i would have expected minimal drain on HC.
Balor said:
Prior to ICS my tf101 would last a good 3-4 days on a fully charged battery with my normal usage during the week. Yesterday I installed ICS went to sleep with just over 50%, it had suffered some heavy usage yesterday, and woke up to a completely flat and switched off tablet this morning. This is very unusual performance for my tab.
When I installed ICS I did a factory reset to clean up my tab so only have a pinch of the apps I had previously installed. One thing I did notice is on the battery tab of system settings the tablet was awake 100% of the time were traditionally it would only have a blue mark were it was in use on the awake line. Battery usage data is unavailable, too, so cant see what is causing tablet not to sleep.
Any suggestions?
Click to expand...
Click to collapse
Try this
Go to settings /WiFi /click three dots in upper right corner/Advanced/ uncheck keep wifi on during sleep.
go to recently used apps and close all ( swipe to right)
put tab to sleep for a while
Come back and turn on.
go to settings
battery
tap grey battery level graph to expand
check individual bars to see what was on and off.
Looks liks some apps are keepi9ng WiFi and GPS on and draining battery.
It would be really nice in future update to have a setting like below:
Setting
Sleep setting
On screen off close all apps except ( here you get to choose apps to leave open)
I'm glad I am not the only one with battery drain issues. I thought I was doing something wrong.
Several days ago I charged my dock and tablet fully. I then turned off the tablet, closed the lid and didn't use it for a few days, when I went to run it again it was totally dead. I would have expected it to at least hold something of a charge in a completely off state.
Yesterday I left the tablet and dock on but just turned the screen off and again this morning had a drained dock.
Just seems like no matter how I try to settle on a way I still see more of a drain than I would have expected.
---------- Post added at 03:15 PM ---------- Previous post was at 03:11 PM ----------
Rumbleweed said:
Try this
Go to settings /WiFi /click three dots in upper right corner/Advanced/ uncheck keep wifi on during sleep.
go to recently used apps and close all ( swipe to right)
put tab to sleep for a while
Come back and turn on.
go to settings
battery
tap grey battery level graph to expand
check individual bars to see what was on and off.
Looks liks some apps are keepi9ng WiFi and GPS on and draining battery.
It would be really nice in future update to have a setting like below:
Setting
Sleep setting
On screen off close all apps except ( here you get to choose apps to leave open)
Click to expand...
Click to collapse
I will have to take a look at that setting myself and see what is up with it.
Yes, it would nice to have a sleep setting button for some helpful settings.
Have there been any firmware updates for the dock itself, or is that not possible?
I'm having the same issue dock was at 80% last night get up this morning and it's at 6%. I set wifi to off during sleep to see if that helps any.
dmazyn said:
I'm having the same issue dock was at 80% last night get up this morning and it's at 6%. I set wifi to off during sleep to see if that helps any.
Click to expand...
Click to collapse
Have to close apps that are keeping stuff on. Look at permissions. More and more are adding "prevent "Function X off during sleep."
As soon as I got the update installed I turned GPS off and set WiFi to never sleep, woke up this morning to only 4% battery drain. The tablet went 12 hours and went from 40% to 36%, i also had apps open...
apps open: engadget, camera, browser, gmail, market and settings..
no battery drain yet, updated yesterday and only 5% drain during the night with apps open
Help!
Same problem here. I noticed high battery drain yesterday and didn't think to leave it plugged in.
This morning, it wouldn't turn back on! I've left it plugged in in case the battery drained too far and will try to turn it on later on.
With HC, the power button was buggy (had to press really hard) and seemed that that went away with ICS (well except for now). Don't know if this is related.
Same issues with me. Except my tablet won't wake up when I push the power button. I have to hold and reset it. Here is the kicker: I will get a 20% power drain over 9 hours on top of it. So not only does my tablet not turn on after it being asleep, but I get a power drain as well!
My Settings: Stock ICS off a completely reformatted device, Keep Wi-Fi on only when plugged in, screen timeout is 1 minute and MobileDock Battery Saving mode is on. My battery usage indicator does not work... I have to get the very basic info from my battery widget.
Very disappointed! This was the one thing I wanted fixed the most. I hated using the airplane mode app. It severely affected performance.
zillah1985 said:
Same issues with me. Except my tablet won't wake up when I push the power button. I have to hold and reset it. Here is the kicker: I will get a 20% power drain over 9 hours on top of it. So not only does my tablet not turn on after it being asleep, but I get a power drain as well!
My Settings: Stock ICS off a completely reformatted device, Keep Wi-Fi on only when plugged in, screen timeout is 1 minute and MobileDock Battery Saving mode is on. My battery usage indicator does not work... I have to get the very basic info from my battery widget.
Very disappointed! This was the one thing I wanted fixed the most. I hated using the airplane mode app. It severely affected performance.
Click to expand...
Click to collapse
Maybe we are all having the random reboot problem.
It makes sense if you think about it.. Mine would randomly go into reboot in sleep and the device would get stuck on the Asus loading screen. So when the device cycle through the loading screen for an entire night, you would find a dead tablet by the morning.
So far, I have encountered 2 random reboots, the only way to bring the device out of the boot screen is to hard reset it by holding down the power button.
Sent from my HTC Sensation 4G using XDA App
balor you most likely got better battery due to custom rom
custom roms tweaked the battery for couple days use.. asus claimed like 9 hours on the tablet.. and like 19 with dock keyboard. custom ics roms inc
My English might be poor, hopefully this thread help. I have flashed stock ICS in my tab baseband XXLQ8. After fully recharged my battery, I found that the performance was not tolerable since in HC 3.2, it only drains 2-3% battery life per 24 hrs in a sleep mode. Unlike HC 3.2, ICS 4.0.4 (baseband XXLQ8, some addressed as Italian stock ROM) drains 1-2% per hour in sleep mode. My battery life dropped 7% in 5 hours without any usage (off screen).
Later on I installed CPU SPY and BetterBatteryStats suggested by some of the posts here. Having the same problem, my tab could barely get into the Deep Sleep state when it was in sleep mode. Instead Deep Sleep, it still works under 216 MHz.
Somebody here suggested it was the Push Service in Samsung App, Google+ or something. Some even found that it was the GSM problem. With the sim card slotted in, the problem gone. However we are pretty sure the effect of the problem is battery drainage in sleep mode. We found that there is a kernel wakelock called l3_hsic all the while running in background that prevents the tab from going into Deep Sleep.
There are several possibilities causing this to happen. Apps creating wakelock maybe, some suggested Google+ with the sync or upload function enable; hey, wait! I don’t have a Google + account signed in, could that still be the problem? Some say Samsung App Push Service causes it to happen, so I just give it a try. Launch the Samsung App, go to the Settings and disable the Push Service. Put the tab to sleep for an hour and check back. Battery drainage still occurs since it dropped 2% for an hour. What a disappointment. But wait, this time I get into the tab Settings>Application>All and find the Samsung Push Service. Checked there were permissions such as creating wakelock and prevent tablet from sleeping. Tap on it and uninstall the app. Put my tablet into sleep again.
After 3 hours, turn on the tab and check back with the battery stats. CPU SPY shows that my tab could get into Deep Sleep state. My battery life did not even drop a single percent. Today is my third day from the last charge. Thanks god, problem solved.
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It doesn't work for me. Still looking
and for l2_hsic what could be the solution? i`ve searched on xda and google but i didn`t find any reliable solution. Any advice?
sgabytzu said:
and for l2_hsic what could be the solution? i`ve searched on xda and google but i didn`t find any reliable solution. Any advice?
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Is that the "battery drains while on airplane mode" issue? I have it too :crying:
it doesn't work for me bro..
for me, i noticed that google maps (auto update on my place, that friends can see where i am) Since I enable auto location my place, i get no deel sleep, when i have disable it, i have 100% deepsleep
I disabled Maps to fix my battery drainage issue. If I need to use maps I just enable it.
Sent from my DROID RAZR using xda premium
The solution to the l2_hsic is to insert a uSIM.
Nevertheless the deep sleep problem will remain. Sorry!
hello,
can we flash another kernel ?
I have the same issue with my galaxy tab 10.1 running Stock ICS 4.04. Something is interrupting deep sleep mode and the battery consuption is 2% per hour in standby mode.
After rebooting it seems to be OK but later and i dont know when/how/why... stops entering deep sleep. I think this problem needs a revision by Samsung but i am sure that they have forgotten us.
I've seen a firmware update on some other thread, for our tablets... but it seems we're not getting it OTA
Another Tips for slove it
I found another solution for this issue in this post:
Finale Solution for Battery Drain issue
l2_hsic wakelock explained.
sgabytzu said:
and for l2_hsic what could be the solution? i`ve searched on xda and google but i didn`t find any reliable solution. Any advice?
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Click to collapse
Please check. :angel:
http://forum.xda-developers.com/showthread.php?t=2474923
Maps Samsung apps Google plus
They sometimes make device wake during sleep
I disabled them all