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Battery Drain? Does this help...

If you've been experiencing decreased battery life with recent versions of android or kernels you're probably pretty frustrated. The problem is that nobody seems to know what causes it or how to stop it. I was bouncing back and forth between this forum and cyanogenmod's forum and somewhere between the two I came across a new kernel made by ezterry for use with CM6.1. One of the patch contributers explained how his patch was supposed to help with battery life. I don't know if it does or not but the discussion shifted to how the adbd binary was respawning even when not connected to usb, and that got me thinking...
What if you turn off "USB Debugging" (uncheck option at Settings -> Application -> Debugging -> USB Debugging) That should keep adbd from starting at all.
The only downside is that you can't use ADB to connect to the phone from your computer when it is disabled. That may be a pain for devs and rom modders but once I've got a new build up and running I don't normally use adb anyways.
I've tried it on 3 different G1's and I am seeing increased battery life. It may not be 100% of where it was before but it is definitely better for me... either that or I'm going crazy...
So please, try it yourself and let people know here if it helps. And I apologize for the people whose work gave me this idea... I'd like to attribute your work to you but for some reason I can't find the thread I was looking at. If I (or someone else) find the thread again I'll update it here.
Update:
farmatito posted about adbd respawning here

I tried it, didn't prevent the drain.
When the battery drain circumstance occurs, you'll see from the Spare Parts / Battery History that the system has been running 100% of the time, i.e., something has prevented it from going to sleep. I see this happening even with USB Debugging turned off. Also, sometimes it still occurs even when I reboot after charging. I think a full power cycle is needed then, not just a reboot.

I also tried with USB debugging off and the battery drain was still there.
Sent from my HTC Dream using XDA App

I think it is a problem in the kernel
adb is in userspace
I know ( around about ) when it started..
but for now to get better battery reboot if you mated your phone, have a cig, a drink of milk or whatever it is you kids do after stuff that drained you

highlandsun said:
I tried it, didn't prevent the drain.
When the battery drain circumstance occurs, you'll see from the Spare Parts / Battery History that the system has been running 100% of the time, i.e., something has prevented it from going to sleep. I see this happening even with USB Debugging turned off. Also, sometimes it still occurs even when I reboot after charging. I think a full power cycle is needed then, not just a reboot.
Click to expand...
Click to collapse
Exactly my experience.

Kernel 2.6.34.7
Hi,
I had the same problem related with the battery drain when I was using Cyanogenmod 6.1. But the problem was solved when I flashed to kernel version 2.6.34.7
Regards,

My phone can idle fine for days if I'm not using it but the second I use the alarm app over night I wake up to find it in the red when it was fully charged the night before. At least for me, the alarm app is stopping it from going into "sleep" mode.

the solution was to flash a slightly older kernel, it was version 2.6.34.7, this was posted over at the cyanogen mod G1 forum. I had the battery drain issue, once I flashed the older kernel via recovery everything was back to normal.

That's good to know, maybe someone can track the changes since 2.6.34.7 and identify the problem...

cabrerachaparro said:
Hi,
I had the same problem related with the battery drain when I was using Cyanogenmod 6.1. But the problem was solved when I flashed to kernel version 2.6.34.7
Regards,
Click to expand...
Click to collapse
I would like to try your link, but what is the file which needs to be downloaded ? thx

A xx.7 kernel def does help with battery life. If your on the new spl and radio, try the ezbifftest xx.7 kernel.
Sent from my HTC Dream using XDA App

cabrerachaparro said:
Hi,
I had the same problem related with the battery drain when I was using Cyanogenmod 6.1. But the problem was solved when I flashed to kernel version 2.6.34.7
Regards,
Click to expand...
Click to collapse
Thank you for this trick. The battery life of my Dream/G1 is extended for real

Have 2.6.34.7 kernel the 14mb ram with new radio/spl?
I don't think so.... solutions?

nagash91 said:
Have 2.6.34.7 kernel the 14mb ram with new radio/spl?
I don't think so.... solutions?
Click to expand...
Click to collapse
patch 2.6.34.7 src with 2708 and compile

Firerat said:
patch 2.6.34.7 src with 2708 and compile
Click to expand...
Click to collapse
I'll do it, but before I have to prepare the mathematical analysis exam
(omg I hate it)
Firerat do you knows if I can patch the newer kernel with the old ramhack that add 10mb removing for 3D rendering?
I think would great 24mb instead of 14
(in this moment I'm using CSDIv4 with +8mb from the old ezterry's kernel and my G1 seems a nexus one )

nagash91 said:
I'll do it, but before I have to prepare the mathematical analysis exam
(omg I hate it)
Firerat do you knows if I can patch the newer kernel with the old ramhack that add 10mb removing for 3D rendering?
I think would great 24mb instead of 14
(in this moment I'm using CSDIv4 with +8mb from the old ezterry's kernel and my G1 seems a nexus one )
Click to expand...
Click to collapse
from your post I doubt you can patch anything
you seem to understand very little
sure you can patch in the old ram hack, but that will render most things unusable
in future don't ask questions implying that you can, just do it and see that you can't
fool..

Firerat said:
from your post I doubt you can patch anything
you seem to understand very little
sure you can patch in the old ram hack, but that will render most things unusable
in future don't ask questions implying that you can, just do it and see that you can't
fool..
Click to expand...
Click to collapse
Ahah yes I can.
I never compiled anything about android roms or kernels, true. But I want to begin.
I have the skills to do it, my problem is the time
I think that I have to compile kernels from source changing some piece of code.
If there are compatibility problems between patches and old kernels codes is a little bit problematic, but I don't think so.
I asked about old ram hack because I never compiled android kernel, so I don't know if the old 1.6 kernels are similar to newer kernels.
Personally I would like to exchange 3D for 10mb more, but don't know if it could break other thinks.
I don't like gallery 3D (don't like in G1, because it's too heavy)
I will try when I have time

Misutsu said:
Thank you for this trick. The battery life of my Dream/G1 is extended for real
Click to expand...
Click to collapse
If you use a 32b G1, you should try this: boot-cm_2634.7_ds_32b-oc-uv-fp-091310.zip

i just download theboot-cm_2634.7_ds_32b-oc-uv-fp-091310.zip im going to try this with cm7 or froyo lazlo because cm7 gives me the best battery life yet suprisingly hopefully bthis gives me an extra hour

ANyone know why this wont work with froyo lazlo -.- i flashed lazlo then this kernel but no luckstays at g1 lazlo works if i just dont flash this kernel

[Q] My HTC Sensation Keeps Shutting Down

Hi - my HTC Sensation phone keeps shutting down on it's own randomly.
By shut down I mean screen goes blank, it powers down, only way to start again is to take out the battery and reinsert.
I am using stock battery that came with the phone.
It's happened 6-7 times in like 2 weeks. I can't determine what is causing it, I did notice it was twice when i used the camera and once skype.
The temperate in battery monitor widget appear normal, no like sudden jump that would indicate the shut down.
It is running 2.3.4 with Android revolution Rom.
Any help/assistance would be appreciated.
Lastly, for HTC repairs, what do they require, store receipt,etc.?

joogle said:
Hi - my HTC Sensation phone keeps shutting down on it's own randomly.
By shut down I mean screen goes blank, it powers down, only way to start again is to take out the battery and reinsert.
I am using stock battery that came with the phone.
It's happened 6-7 times in like 2 weeks. I can't determine what is causing it, I did notice it was twice when i used the camera and once skype.
The temperate in battery monitor widget appear normal, no like sudden jump that would indicate the shut down.
It is running 2.3.4 with Android revolution Rom.
Any help/assistance would be appreciated.
Lastly, for HTC repairs, what do they require, store receipt,etc.?
Click to expand...
Click to collapse
maybe this is a rom issue or maybe the kernel you are using...try another rom and see if it happens again...this is not hardware problem...

Try a new kernel first before reflashing rom. Also look at voltage levels, of volts are set too low this can happen.
sent from my Sensation XE

I know its phone 101 stuff.............but have you checked out how much free memory you have on the phone and sd card?
Memory is a major issue

Internal Storage Space Available is 792MB
SD Avaialble Space is 5.67GB
Kernel is listed as :
2.6.25.14-Sensation-faux123-v0.2.8+
[email protected] #194
Baseband version:
10.58.9035.00P_10.15.9035.02_2
Build number
1.73.401.2 CL161971

joogle said:
Internal Storage Space Available is 792MB
SD Avaialble Space is 5.67GB
Kernel is listed as :
2.6.25.14-Sensation-faux123-v0.2.8+
[email protected] #194
Baseband version:
10.58.9035.00P_10.15.9035.02_2
Build number
1.73.401.2 CL161971
Click to expand...
Click to collapse
ROM? Kernel freq?
Sent from my HTC Sensation XE with Beats Audio using Tapatalk

Rom is Android Revolution HD 3.6.13
kernel: 2.6.35.14

joogle said:
Rom is Android Revolution HD 3.6.13
kernel: 2.6.35.14
Click to expand...
Click to collapse
Silly question, have you tried the rom without flashing kenels? Meaning use the one bundled in the rom.

To be honest im not sure how to do that, i just followed the thread and installed the rom as mentioned in this thread
http://forum.xda-developers.com/showthread.php?t=1098849
I did just revert back to 1.2ghz right now to see if that makes a difference, the rom i was on had the cpu set to 1.5ghz
kpjimmy said:
Silly question, have you tried the rom without flashing kenels? Meaning use the one bundled in the rom.
Click to expand...
Click to collapse

Isn't ARHD a sense based rom? I use faux's kernel and he states that it is for AOSP/CM roms only. Could that be the issue?
Edit: My bad, forgot that faux develops the kernel for arhd as well. I had a similar issue when I tried to upgrade my radio to the newest from the same one you are using. Flashing back stopped the black screens.

joogle said:
To be honest im not sure how to do that, i just followed the thread and installed the rom as mentioned in this thread
http://forum.xda-developers.com/showthread.php?t=1098849
I did just revert back to 1.2ghz right now to see if that makes a difference, the rom i was on had the cpu set to 1.5ghz
Click to expand...
Click to collapse
I think I read in that thread that if people are having trouble with the overclock, to lower to 1ghz. But report back if your way works or not. GL

I have been having some random shut downs as well lately. I've been running the last insertcoin GB rom. It started as an occasional shut down but recently became very frequent. I decided to superwipe and flash the lastest android revolution gb rom and during the initial boot up it shut down and then 2 more times before I was able to finish logging in to my gmail account to complete the phone's setup. It's now started up and hasn't shut down in the last 15 minutes or so but I'm wondering what is causing it. I had stock kernel with insertcoin's rom and I selected the 1.5 kernel during the install of ARHD. I also flashed the recommended radio for the ARHD rom before installing it.

I would like to find a solution for this too because I have been dealing with this for a long time. I have tried many ROMS both ICS and GB and many different kernels and still have problems. The problem seems to go away with aosp ROMS for me though:/
EDIT: And the most of the time it happens if not all the time the batteryis below at least 50% and starts to really get crazy after the 20% and 10%

I am freaking so frustrated with this phone.
I went back to normal 1.2ghz, but now a few days later battery is well at 50%, it still shuts down.
#@$#@[email protected]#
Anyone have a solution here? Is there a damn log or trace that can be run to identify why it shuts down on itself.

joogle said:
I am freaking so frustrated with this phone.
I went back to normal 1.2ghz, but now a few days later battery is well at 50%, it still shuts down.
#@$#@[email protected]#
Anyone have a solution here? Is there a damn log or trace that can be run to identify why it shuts down on itself.
Click to expand...
Click to collapse
well i have a battery fix that can be flashed
so you know didnt make it idk who did
link

What does this do? My phone's battery is a 50% or higher when this shut down happens

joogle said:
What does this do? My phone's battery is a 50% or higher when this shut down happens
Click to expand...
Click to collapse
this acording to what i read would fix the reading of the battery, should make it more accurate i would have 20% when i said 50 btw download an app called elixer and monitor or battery

i have battery monitor widget running and it shows battery at more than half
im guessing this is hardware issue
Alienator9191 said:
this acording to what i read would fix the reading of the battery, should make it more accurate i would have 20% when i said 50 btw download an app called elixer and monitor or battery
Click to expand...
Click to collapse

joogle said:
i have battery monitor widget running and it shows battery at more than half
im guessing this is hardware issue
Click to expand...
Click to collapse
what is the mv when the phone shuts down monitor that the htc bat falls out at 3800MV whil andker at 3600 or 3300mv

3891mv is last reading before today's shut down, this is stock
im thinking of flashing ics rom to test now
Alienator9191 said:
what is the mv when the phone shuts down monitor that the htc bat falls out at 3800MV whil andker at 3600 or 3300mv
Click to expand...
Click to collapse

AOKP charging while off

I am on AOKP B31 without fast charge enabled but seem to have a problem with the phone charging when off. If I plug it into a USB or wall charger, both samsung, the initial battery screen will come on but after the screen turns off it will not turn back on. I left it there for 30 min turned it on and it showed 50% more battery. We all know with a samsung that is not possible. Just want to see if others are having this issue, or a fix.
Thanks in advance.

I am sporadically having this issue as well- Samsung charger, AOKP b31. I will play with it over the weekend and see if I can figure anything out. For the moment I am not seeing this behavior, but initially after flashing I did...

I have not had this issue on any other THS or AOKP build and I have used a lot of them. The last one I was on was milestone 4 and it was fine.
Sent from my AOKP ICS captivate using XDA

Hmm, still doing it. Setting the Min CPU to 200MHz has not helped, as I have seen posted elsewhere. Charging screen turned off at some point, and when I booted up it was at 64% (from 7%). I'm not super worried about it though, seeing as how I flash like crazy and will not be on Build 31 for any length of time. If I get this on other builds or other Roms I will update again.
Edit: Build 32 is out, so I am going to flash and see if that resolves the issue. I am wondering is this is a kernel issue, as the Glitch for Build 31 was the first time I had switched from Glitch version 14 beta 6. Maybe I'll try the Semaphore kernel if the issue remains.

I flashed 32 and it still is the same issue. Also tried the min CPU increase but nothing. Hopefully it will be fixed soon. My concern is that it will continue to charge after 100%.
Sent from my SGH-I897 using XDA

read the first post of AOKP. report bugs where it tells you to. they will not look here, or will they care if they do look here, if you do not follow their instructions for reporting bugs.
look to see if the bug exists, and if it is there, click the STAR to vote for the issue as that page says to do.

I have read the OP but I did not want to flood the bug tracker if it was a problem already found or known. I did not have the 10 posts needed to post in the development section, so I figured start this to see if anyone had an issue. I know how much everyone hates the development thread being diluted with dumb question after question. I did report it on the bug reporter site.
P.S. - Thanks for your essentials mod, makes everything much easier.

Just wonder - will disable fast charge help?

I have not enabled fast charge. I thought that only effects charging when on USB? I could be wrong though.
Sent from my SGH-I897 using XDA

I have been testing with both i897 and i9000 bootloaders. This may be a Glitch kernel issue, as I have flashed Semaphore ICS kernel 1.0.0 and have not seen this. Looks like there is already a bug reported in the AOKP page. Not a huge concern though, I think, because the phone seems to charge nevertheless.

ICS and SoD, going through solutions! Build 1006 phones

Hi!
I have spent a long time testing ROMs, Kernels and modem combination and first of all must say THANK YOU!, all of you are doing a great job with kernels and roms and modems, it really amazing see your old phone working better than brand new.
My investigation with different combination make me go into 1 conclusion, finding the most compatible modem to your phone could prevent most or all SoD problems. I make different test and find that my phone totally lost signal and can't go back until restart the phone (also going to flight mode don't work), the most compatible modem I test the less this bug happen and less SoD.
Still don't know when start this signal bug but is the first problem I could see. Usually happens early in the morning.
PS: I've confirm this with others devices with SoD as well and people are having better results changing modems.
PS2: All cappy test was done on a 2010 build 1006 phone with SoD over 80% battery charge on stock rom (build over 1006 should not experience this problems) stock as possible.
PS3: wake lock app totally prevent SoD, but at the cost of some battery drain when not using the phone, specially at night ( this can be solved just leave the charger plug in )
Hope this could help someone
Best regards to everyone!

rophiroth said:
Hi!
I have spent a long time testing ROMs, Kernels and modem combination and first of all must say THANK YOU!, all of you are doing a great job with kernels and roms, it really amazing see your old phone working better than brand new.
My investigation with different combination make me go into 1 conclusion, finding the most compatible modem to your phone could prevent most or all SoD problems. I make different test and find that when phone lost signal or where without sim card it take just some minutes (even less sometimes) to SoD or just restart, the most compatible modem I test the less SoD.
This probably mean that many of our cappy can't stay on idle while no signal (probably enter on a state similar to deep idle).
People, if you can, please test your cappy with ICS without sim card, put on idle and look if go SoD in less than 10 min.
PS: I've confirm this with others devices with SoD as well and people are having better results changing modems.
PS2: All cappy test was done on a 2010 phone with SoD over 80% battery charge on stock rom
PS3: wake lock app totally prevent SoD, but at the cost of some battery drain when not using the phone, specially at night ( this can be solved just leave the charger plug in )
Hope this could help someone
Best regards to everyone!
Click to expand...
Click to collapse
Deep Idle doesn't work well with Captivate bootloaders and causes SoD. Use Devil with devil idle, or no idles at all because the phone will still sleep. Deep idle only benefits music playing and barely. It's not the kernels, or modems, it is the idle itself. Also, what is the point of running tests without the sim card in, modem tests should be done with the sim card in.
tl;dr: Deep idle never worked well, and should be combined with i9000 boot loaders if you want it to work well.

I don't use deep idle and use i9000 bootloader
Sent from my SGH-I897 using XDA

I always turn on flight mode all night, and never had a SOD
Slim ISC 4.0 + devil 0.71 + devil idle (no Deep Idle)

xtmp said:
I always turn on flight mode all night, and never had a SOD
Slim ISC 4.0 + devil 0.71 + devil idle (no Deep Idle)
Click to expand...
Click to collapse
and without flight mode did SoD?

rophiroth said:
and without flight mode did SoD?
Click to expand...
Click to collapse
no, all fine. Can try without sim, but I think result will be the same.

It's not the modems, SoD depends on the build of the phone, the kernel, the bootloaders etc;

nygfan760 said:
It's not the modems, SoD depends on the build of the phone, the kernel, the bootloaders etc;
Click to expand...
Click to collapse
Not what my experience tells with my phone, different builds and bootloader dont really make any significant change

left my phone more than 1 hour without sim card. No SOD happens.

Some one of you have a 1006 i897 build phone too, because I don't have sod in moderns i897?
Sent from my SGH-I897 using XDA

rophiroth said:
Some one of you have a 1006 i897 build phone too, because I don't have sod in moderns i897?
Sent from my SGH-I897 using XDA
Click to expand...
Click to collapse
No, like I am telling you, the modem doesn't cause SoD. By testing without a sim, you are proving that point to be even more true.

But you tell me you don't have an 1006 he build phone. So as I say this can be a bug with this phone that make random reboot and sod.
Sent from my SGH-I897 using XDA

rophiroth said:
But you tell me you don't have an 1006 he build phone. So as I say this can be a bug with this phone that make random reboot and sod.
Sent from my SGH-I897 using XDA
Click to expand...
Click to collapse
That would be a hardware problem.

nygfan760 said:
That would be a hardware problem.
Click to expand...
Click to collapse
Yea and not at same time, build 1006 as know for been bugged from factory but with new builds of kernels, modem,roms and also many tips I have take over most of the problems that make my phone shutdown. Today my phone was all day on idle and just check now to see if still alive and yes!

Bug post
Sent from my SGH-I897 using XDA

Edit OP for better explication of tests and results

I've install an app called "singal reset" and activate deep idle, mincpu to 100. Actually the phone never goes to didle state(not top on or off huehue) but in all day long my phone dont SoD. Will see what happen this night

[Q] HTC Sensation XE shutdown.

Hello XDA users,
I have been Using the HTC Sensation XE for about 7 months now. But im having some issue's with it.
My phone randomly reboots at calls, typing text and taking photo's. Also the phone's gets quite hot. I looked up the problem and found out that the battery is the problem. and with some more reseach i found that its a common issue with the sock battery so i replaced it for the ANKER 1900mAh LI-ION BATTERY. After replacing the stock battery with the ANKER battery that issue has been solved. But my phone still gets quite hot once its in its rebooting loop. The phone reboots it lets my fill in my PIN-Code and after a minute it reboots again. once this has happened a few times i started to notice the phone is getting quite hot behind my Micro SD CARD.
Do you guys have any idea's what the issue could be?
Software info:
Android-version
3.0.4
HTC Sense-version
3.6
Softwarenumber
3.33.401.154
Kernel-version
3.0.16-g31a4fc7 [email protected] #1 SMP PREEMPT
Smalbrandversion
11.76C.3504.00U_11.29A.3504. 18_M
Build-number
3.33.401.154 CL391535 release-keys
Browserversion
WebKit/534.30
I hope you guys can help me!
(english is not my main language so im sorry for any spelling mistakes and bad grammer! i hope u understand it)
~Joey

do you have overclocked too much?
also those rebooting loops happened only once or do you have them frequently?
if it happened once then just switch off the device and let it cool for 10 minutes
then switch it on again

rzr86 said:
do you have overclocked too much?
also those rebooting loops happened only once or do you have them frequently?
if it happened once then just switch off the device and let it cool for 10 minutes
then switch it on again
Click to expand...
Click to collapse
I did not overlock it. its underlocked once my screen goes of to save battery life. and when it gets stuck inside the boot loops sometimes i have them a few times a day and other times i dont have them for a week so it seems kinda random to me. and mostly when i leave the phone off for 10 min (battery fully taken out like in the picture) it solves the loop.
Could it be a software issue?

MrNoilliz said:
I did not overlock it. its underlocked once my screen goes of to save battery life. and when it gets stuck inside the boot loops sometimes i have them a few times a day and other times i dont have them for a week so it seems kinda random to me. and mostly when i leave the phone off for 10 min (battery fully taken out like in the picture) it solves the loop.
Could it be a software issue?
Click to expand...
Click to collapse
try different roms or kernel
did you use another battery?

rzr86 said:
try different roms or kernel
did you use another battery?
Click to expand...
Click to collapse
Yes i am using the ANKER battery at the moment.
Do you know any good roms and kernels out there?

MrNoilliz said:
Yes i am using the ANKER battery at the moment.
Do you know any good roms and kernels out there?
Click to expand...
Click to collapse
if you want flash the stock rom from recovery(link in my signature)
otherwise flash ARHD ROM which is the closest one to ics stock
if you want to upgrade to jb with sense go for viperS ROM 5.0.0:good:
but it should be better to use some of them in your own and see what suits best for you
about kernel i am satisfied with sebastianFM's kernel:good:

Sorry late responce been quite busy
but i am gona try the ARHD Rom if i have some spare time to mess around with my phone.
and today i have made plenty of phone calls and been using whatsapp the whole day and my phone dident reboot once.