Need HELP: 2.3.6 bug? - AT&T Samsung Galaxy S II Skyrocket SGH-I727

Updated SR with the OTA 2.3.6 update... everything "appeared" to go perfectly. However, I just noticed my "Brightness" control in Display Settings is now greyed-out... can't change the display brightness. To further add to the mystery, when I plug into the AC power, the Brightness control is functional; however, as soon as I disconnect from AC power, the Brightness control goes back to being greyed out and cannot be adjusted.
Anyone else run into this after the 2.3.6 update? I was rooted with stock recovery when I did the update... after update, remained rooted and everything worked perfectly.. EXCEPT when I noticed the Brightness control was greyed-out. Any suggestions on how I can regain display brightness control when running on battery power? Thx

Do you have it set to "auto"?
Sent from my SAMSUNG-SGH-I727 using xda premium

Gr8Danes said:
Do you have it set to "auto"?
Sent from my SAMSUNG-SGH-I727 using xda premium
Click to expand...
Click to collapse
Yes, I had Automatic Brightness checked... but couldn't uncheck it once the control got disabled. After a full re-charge, the Brightness option is no longer greyed-out under battery power Does anyone know if this functionality gets disabled when battery gets below 15%? What's odd however is that when it got disabled, the screen went to full brightness...then couldn't be managed, so counterintuitive on what it should be doing under low battery conditions! One would think it would dim to 10% brightness first, then disable the Brightness functionality (if in fact the stock ROM/kernel does disable brightness function at low battery conditions).

You might have the power management settings turned on....you can set it to automatically do things after the battery drops below a certain point (such as 20, 15, 10%). Sounds like what might have happened. I haven't noticed any changes due to the update.

Power mgmt was and still is off. It just happened again. Seems like when battery drops below 10%, the Brightness option gets greyed - out and cannot be used. I don't have any other power mgmt apps loaded, so it must be new to 2.3.6. Can anyone else (on OTA 2.3.6) confirm when battery level drops below 10%, your Brightness contol gets greyed-out?
Sent from my SAMSUNG-SGH-I727 using XDA App

I had that with the 2.3.6 update. Below 10% I couldn't adjust brightness with the stock setting, or with any 3rd party app. it started out full dim, then at around 5% went full bright. The battery saver feature was disabled. I've returned the phone, and I'm not updating my new Skyrocket.

I used the cwmable package from Mikey and silver03wrx and this is not an issue. Its the same 2.3.6 update just rooted and of course in .zip form.
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Related

do you use auto-brightness or manual?

I have been using auto-brightness, but I feel that it is usually brighter than necessary. I'm trying to get better battery life ( get a day just fine as is using the phone quite a bit) but I'm going to experiment with manual brightness to see how much life I can save. What do you use? How has it affected your battery life?
I use auto brightness too, but have been thinking about using manual brightness with the screen always #1 in my battery history (consistently 60-70% battery use).
It seems like the only people able to get the screen out of the number one slot for battery history are those setting screen brightness manually. Can anyone confirm this?
I use auto brightness and it seems to do fine. I will agree with you that it does seem a bit bright in some situations though. I can get a day's worth of battery out of it with auto brightness, and wifi on (never sleep policy).
I need to do a bit more testing without wifi, but I don't see why it wouldn't be that much different (I could be wrong though)
It sucks that auto-brightness can't be adjusted at all. On the iphone you could "weight" auto-brightness to lower or higher settings. It worked great because you could still use auto brightness, but keep the screen a little dimmer to save power.
NOSintake said:
I... and wifi on (never sleep policy) ...
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Click to collapse
Sorry for this off-topic question - does it mean you got your Captivate without a data plan?
rexian said:
Sorry for this off-topic question - does it mean you got your Captivate without a data plan?
Click to expand...
Click to collapse
He's referring to whether or not your Wifi chip will go into sleep mode when the screen is off. By default your wifi will go into sleep mode when the screen is off.
To change the setting navigate to settings -> wireless and network -> wi-fi settings -> tap the menu button and select advanced which has an option for wi-fi sleep policy that had been defaulted to sleep "when screen turns off". There you have the option to change it to "never" or "never when plugged in".
phishie said:
He's referring to whether or not your Wifi chip will go into sleep mode when the screen is off. By default your wifi will go into sleep mode when the screen is off.
To change the setting navigate to settings -> wireless and network -> wi-fi settings -> tap the menu button and select advanced which has an option for wi-fi sleep policy that had been defaulted to sleep "when screen turns off". There you have the option to change it to "never" or "never when plugged in".
Click to expand...
Click to collapse
What is the advantage to keeping wifi on?
Some people only have the 200MB data plan like me.
I also use google voice for my text messages because it is free. Has worked like a charm!
I used autobrightness for a few days, but then I found out that you can adjust the brightness just by sliding along the notification bar. I never went back.
k2snowboards88 said:
What is the advantage to keeping wifi on?
Click to expand...
Click to collapse
Wi-fi uses less battery power, and is faster than 3G in most cases.
I use Manual brightness and i Have the power widget loaded which gives you a 3 position brightness toggle - low medium high, just in case i want to change.
alphadog00 said:
I use Manual brightness and i Have the power widget loaded which gives you a 3 position brightness toggle - low medium high, just in case i want to change.
Click to expand...
Click to collapse
Try sliding your finger horizontally over the top bar. Samsung made it so that it acts as a brightness slider.
Yep I use the notification bar swipe method. Works great.
Sent from my SAMSUNG-SGH-I897 using XDA App
unclejimbo88 said:
I used autobrightness for a few days, but then I found out that you can adjust the brightness just by sliding along the notification bar. I never went back.
Click to expand...
Click to collapse
That's brilliant (pun intended)! Thank you for letting me know about that. I was using auto, but I'm going to try this now.
So if your using manual do you use the power saving option? I feel this is the same as auto bright ness.

How to adjust the brightness other than the default range?

I found the captivate drain battery too fast, even at the lowest brightness the phone gives. So I am thinking about maybe we could further turn down the brightness of the screen, this might save a lot battery.
But how??
Sent from my SAMSUNG-SGH-I897 using XDA App
I noticed that from JF6 to JH7, the brightness went down one tick lower. When I had stock JF6 set to manual brightness, I used to not have a hard time reading the contents on the display while the phone is on my desk, set to the lowest setting. When I did the JH7 OTA update, I noticed that the lowest brightness setting (when set to manual) is even lower. It made it harder to read. Hope that answers your question on brightness settings. There is more on JH7 than just the brightness settings changes. Plus, there are other things you can do to save battery power than just adjusting the display brightness
When I go into Settings, About and battery use.
It show that the Display using about 60% of the power.
Everything is relative on that page. If all you do is turn on the screen and browse, the "Display" battery usage will be higher. If you're on the phone for an hour or so (which, by default, the display turns off) you'll see "Voice calls" number go up. Etc.
baseballfanz said:
When I go into Settings, About and battery use.
It show that the Display using about 60% of the power.
Click to expand...
Click to collapse
Basically it's saying, the time you've had your device unplugged, 60% of the battery usage has been due to the display. and 40% of it is among other things.
There's an app on the market called Dimmer that will knock the brightness down a bit from the lowest setting. There's a small window that pops up that says "changing brightness from XX to 10" where XX = 30 on the lowest setting via the default brightness settings.
This makes me suspect that the brightness could go even lower, though I don't if it would impact the performance of the screen, given the Super AMOLED tech.
http://www.appbrain.com/app/dimmer-%28-night-mode-%29/com.geekyouup.android.dimmer
baseballfanz said:
When I go into Settings, About and battery use.
It show that the Display using about 60% of the power.
Click to expand...
Click to collapse
This is normal..All this means is your display is using the most and you don't have any background programs eating the battery.It should always show this as the highest from what I've been told.
In settings you can can either use the automatic brightness setting..or not... it is in Sound and Display..scroll down to display settings and you will see Brightness...Screen Time Out...and Power Saving Mode . Click on Power Saving mode....if you see the green check mark there..you are unchecking it..then open the Brightness tab..click on automatic brightness adjustment if checked and do the same thing ..and then ok. Your screen will darken.. You can then install the power bar on one of your screens by touching a unpopulated area large enough to accept the power bar strip. You will then be able to adjust the brightness by tapping on it..as well as being able to turn on and off wi-fi..blue-tooth..satellite..sync..and lastly brightness.
Mac
This is good. It turns my screen from 30 to 10, and it does save battery.
yourtvlies said:
There's an app on the market called Dimmer that will knock the brightness down a bit from the lowest setting. There's a small window that pops up that says "changing brightness from XX to 10" where XX = 30 on the lowest setting via the default brightness settings.
This makes me suspect that the brightness could go even lower, though I don't if it would impact the performance of the screen, given the Super AMOLED tech.
http://www.appbrain.com/app/dimmer-(-night-mode-)/com.geekyouup.android.dimmer
Click to expand...
Click to collapse
Sent from my SAMSUNG-SGH-I897 using XDA App
Theres also an app called Screen Filter which does the same thing as you guys have been describing, except it has a slider you can use to set what you would like, I use it for reading in bed, and it works wonderfully.
http://www.appbrain.com/app/screen-filter/com.haxor

[Q] How do you make the battery life better on this

I have to charge my phone 2 or 3 times a day any recommendations on how to make my battery life longer that are simple and easy
Jawdude said:
I have to charge my phone 2 or 3 times a day any recommendations on how to make my battery life longer that are simple and easy
Click to expand...
Click to collapse
I'm a truck driver and I'm a heavy user.
I did too before I made the changes below. These all work with the Stock Rom.
1. Installed No Lock (so that I don't have to swipe the screen to unlock, just push the power button)
2. Set screen to turn off in 30 seconds.
3. Installed Brightness Widget (allows changing the brightness from the home screen
4. Installed Screen Filter (lets me really darken my screen at night.
Try those and see how you do.
5. I then flashed the Infused Rom (I now get up to 10-14 hours)
Jawdude said:
I have to charge my phone 2 or 3 times a day any recommendations on how to make my battery life longer that are simple and easy
Click to expand...
Click to collapse
Custom kernal and rom
Running refused and infusion 1.8 rom and I get 14 hours with heavy data use
Sent from my SAMSUNG-SGH-I997 using XDA Premium App
Also, Turn off GPS and Wifi when you're not using them.
Battery
After much experimenting and monitoring of battery use I find that the biggest drain is the screen display, so go to settings-->display-->brightness and lower the screen brightness as low as you comfortably can. Also when you you are not using the phone make sure the screen is off, I have trained myself to automatically hit the power button every time I put down the phone. If you listen to music through your phone make sure the settings on your music players allow the phone to play when the screen is off and turn the screen off while it plays.
GPS also drains the battery, so I keep it turned off when I don't use the Nav. When I use the Nav I know the battery will drain at a rapid pace, nothing you can do there, even if I have the phone plugged in to car power while using Nav it still drains the battery! Drains slower than unplugged navigating but still drains.
If your watching videos then your S.O.L. there's really nothing you can do that will increase battery life enough to make a difference during video playback.
I get 10-12 hours with regular use and stock rom. Worst was 8 hours best was 24.
Thanks for all the advice this has really helped my battery
Truckerglenn said:
I'm a truck driver and I'm a heavy user.
3. Installed Brightness Widget (allows changing the brightness from the home screen
There was a recent post that showed a shortcut for changing the screen brightness from the homescreen without any additional software. First, turn off auto brightness. Second, tap and hold the menu bar at the top. Third, slide left to reduce the screen brightness and right to increase screen brightness.
Click to expand...
Click to collapse
menzoom said:
After much experimenting and monitoring of battery use I find that the biggest drain is the screen display, so go to settings-->display-->brightness and lower the screen brightness as low as you comfortably can. Also when you you are not using the phone make sure the screen is off, I have trained myself to automatically hit the power button every time I put down the phone. If you listen to music through your phone make sure the settings on your music players allow the phone to play when the screen is off and turn the screen off while it plays.
GPS also drains the battery, so I keep it turned off when I don't use the Nav. When I use the Nav I know the battery will drain at a rapid pace, nothing you can do there, even if I have the phone plugged in to car power while using Nav it still drains the battery! Drains slower than unplugged navigating but still drains.
If your watching videos then your S.O.L. there's really nothing you can do that will increase battery life enough to make a difference during video playback.
I get 10-12 hours with regular use and stock rom. Worst was 8 hours best was 24.
Click to expand...
Click to collapse
How does it drain your battery when its plugged into the car? I have never seen that on any cell phone. That my friend is messed up if true.
reissy said:
How does it drain your battery when its plugged into the car? I have never seen that on any cell phone. That my friend is messed up if true.
Click to expand...
Click to collapse
It seems that Samsung ****ed up and included phone CPU/screen/etc usage when measuring battery charge current.
This means that the 600 mA stock battery charge current limit isn't just going to the battery, it's split between battery/screen/CPU. If screen/CPU/etc go above 600 mA (Navigation at full brightness seems to be the most common way), battery starts draining.
It also means that unless there's something I'm missing (which I could be since the MAX8998 datasheet is super-ultra-secret), our phone isn't going to be able to do proper charge termination - if the screen is on/CPU is running, it will cause a falsely high battery charge current reading, which will cause charging to fail to terminate.
Juice defender
I found that juice defender helped my battery and i just use the free version it's a great app
I used Iphone 3g 3gs 4. None of them drain battery like this one. First time use Android phone and getting a bit disappointed of this phone. It's draining 2% every 5 mins and im using stock Rom.
Sent from my SAMSUNG-SGH-I997 using XDA App
Install a ROM. Infused v2 nearly doubled my screen-on battery life and tripled my screen-off battery life.
sweetboy02125 said:
I used Iphone 3g 3gs 4. None of them drain battery like this one. First time use Android phone and getting a bit disappointed of this phone. It's draining 2% every 5 mins and im using stock Rom.
Sent from my SAMSUNG-SGH-I997 using XDA App
Click to expand...
Click to collapse
That's excessive... Rogue app maybe?
ptgptg said:
Truckerglenn said:
I'm a truck driver and I'm a heavy user.
3. Installed Brightness Widget (allows changing the brightness from the home screen
There was a recent post that showed a shortcut for changing the screen brightness from the homescreen without any additional software. First, turn off auto brightness. Second, tap and hold the menu bar at the top. Third, slide left to reduce the screen brightness and right to increase screen brightness.
Click to expand...
Click to collapse
Thanks I never new that
Sent from my SAMSUNG-SGH-I997R using XDA Premium App
Click to expand...
Click to collapse
look in about phone battery use to identify the biggest battery user, it should be the screen. anything else and there is a problem.
the cell standby may go high on froyo rom, turning on flight mode and turning it off will correct that, it's an android bug.
on gingerbread the android os or android system may hog battery occasionally. some think it is the wifi sleep policy but it pops up on me without setting the sleep policy. the fix for that is to pull the battery for a couple minutes and put it back in and restart the phone.
next manage the screen brightness
install a custom rom, there are issues with certain firmware keeping sensors active wen they shouldn't be.
turn off unneeded sync options (i find that auto fetching my email uses a lot especially with my gmail already set to sync),
use wifi when you use the internet if possible, turn it off when out and about.
monitor cpu useage of apps that are cached in the task manager
kill apps that use cpu
if needed turn the max cpu clock down to 800mhz
set "use wireless networks" for location when possible for general location (limited to city level at times)
Dani897 said:
look in about phone battery use to identify the biggest battery user, it should be the screen. anything else and there is a problem.
the cell standby may go high on froyo rom, turning on flight mode and turning it off will correct that, it's an android bug.
on gingerbread the android os or android system may hog battery occasionally. some think it is the wifi sleep policy but it pops up on me without setting the sleep policy. the fix for that is to pull the battery for a couple minutes and put it back in and restart the phone.
next manage the screen brightness
install a custom rom, there are issues with certain firmware keeping sensors active wen they shouldn't be.
turn off unneeded sync options (i find that auto fetching my email uses a lot especially with my gmail already set to sync),
use wifi when you use the internet if possible, turn it off when out and about.
monitor cpu useage of apps that are cached in the task manager
kill apps that use cpu
if needed turn the max cpu clock down to 800mhz
set "use wireless networks" for location when possible for general location (limited to city level at times)
Click to expand...
Click to collapse
Actually, high cell standby is OK if the phone is screen-off often.
Cell standby is always my top user - but my phone is sitting on my desk with the screen off frequently, in a location with weak signal. Weak signal makes cell standby usage go WAY up.
Syncwifi application is awesome for extending sync settings to gain more battery
Sent from my SAMSUNG-SGH-I997 using XDA Premium App
Using titanium backup I froze drm content 2.2.1 and this significantly increased my battery life.
Sent from my Infuse. It is what it isn't.
JuiceDefender!!
I agree JuiceDefender works!! I had to charge in the middle of the day. Now with moderate use it will last all day Im on stock Rom.
I easily get 2 days out of my Infuse, no idea how some of you are managing to only get 8 hours. After rooting my phone and freezing the bloat i easily get twice the battery life of my prior iPhone 3GS.

[Q] Battery Drain on Cynogenmod 10 JellyBean ROM 4.1.2 Updated 10/10

I have upgraded my phone from stock 2.3.6 to the latest JellyBean][4.1.2]Unofficial CM10 - Updated 10/10 - Butter - MTD - OC Kernel by scott hart.
I am pleased with overall performance increase of my phone, however I'm facing great battery drain. From 100% charge to 4% it just last around 4 hours. Anyone who can help me understanding this??
reboot and charge it
qkster said:
reboot and charge it
Click to expand...
Click to collapse
Already done that few times, but that's not helping.
Let the ROM settle for a day or two. See what happens. My battery was fast the first day too.
Sent from my SGH-I997 using xda premium
Well it looks like you were on the screen for a while...plus had some media playing in the background...music or videos?
I'd like to see the more detailed one...like how many hours screen was on, or clicking the battery graph at the top and seeing what it displays there for awake and screen time length on that...
Cause if the screen was on for most of that time...then what do you expect? If the screen wasn't on that much...then something sounds a little strange...
Sent from my SGH-I997 using xda app-developers app
Set any sync you have to off or the maximum interval.
Adjust the automatic screen brightness levels, I posted a thread, "custom backlight settings". Turning down the brightness levels will help tremendously.
For the best battery benefit, turn automatic brightness off and set the brightness level as low as you can tolerate.
Set screen timeout to 15seconds.
Turn off any vibrate notifications or keyboard vibrations. You'd be surprised how much battery vibrate uses.
Download Justin inverted gapps. They are mostly a dark black theme.
Also set your wallpaper to a black or dark background. Anything but white! Making the screen mostly show darker colors reduces battery consumption.
Turn off auto update in play store.
Turn off WiFi, GPS, and Bluetooth whenever possible.
Advanced users only... you can under clock to 800mhz. This may produce some lag, but will help save battery.
You can also under volt, there are plenty of threads on here describing a safe way to go about doing this.
Hope this helps. And good luck
Sent from my SGH-I997 using xda app-developers app
hollywood528 said:
Set any sync you have to off or the maximum interval.
Adjust the automatic screen brightness levels, I posted a thread, "custom backlight settings". Turning down the brightness levels will help tremendously.
For the best battery benefit, turn automatic brightness off and set the brightness level as low as you can tolerate.
Set screen timeout to 15seconds.
Turn off any vibrate notifications or keyboard vibrations. You'd be surprised how much battery vibrate uses.
Download Justin inverted gapps. They are mostly a dark black theme.
Also set your wallpaper to a black or dark background. Anything but white! Making the screen mostly show darker colors reduces battery consumption.
Turn off auto update in play store.
Turn off WiFi, GPS, and Bluetooth whenever possible.
Advanced users only... you can under clock to 800mhz. This may produce some lag, but will help save battery.
You can also under volt, there are plenty of threads on here describing a safe way to go about doing this.
Hope this helps. And good luck
Sent from my SGH-I997 using xda app-developers app
Click to expand...
Click to collapse
After seeing that Mediaserver usage I already turned off all the syncs. I can see some improvement and right now I'm reducing screen dim level.
The only thing that is bothering me now is sometimes my processor usage is 100% for a good 10 minute or so (no foreground process running) which makes my phone really hot. This is only thing now I need help from you guys, thank u all for relying. mg2195 i'm attaching screen shots.

Power mode keeps changing

Hi
I've S10 plus exynos.
I've noticed a strange thing keeps happening today I made the power mode on optimized and adaptive battery on but these settings keep changing to be power saving mode and adaptive power mode off.
I tried reset settings but still have the same issue
Any idea?
Sent from my SM-G975F using Tapatalk
Usually this happens before the first week of usage is over. The software needs to read your usage patterns in order to get adaptive power saving to work correctly.
Adaptive battery saving changes your profile automatically, but it will set itself off if you change profile manually.
Anyone can tell how to enable deep sleep mode. AoD is disabled. But battery is not giving 7 hours even on mild usage
Wait for march update
Sent from my SM-G975F using Tapatalk
If you update it to the latest version, you will be fine.
I've not observed this problem with my phone, running ASCA - March security patch
Only time I get this is if I turn on adaptive power. First thing I turned off.
Sent from my SM-G975U using Tapatalk
customworx said:
Usually this happens before the first week of usage is over. The software needs to read your usage patterns in order to get adaptive power saving to work correctly.
Click to expand...
Click to collapse
Absolutely right..Had before same issues but after apprx.10 days it s working correctly.

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