Database Develop

Battery Drain = 3G?

One of the big complaints from all published reviews is the lack of battery power - about 4 hours maximum. I have an idea I to present.
I have the T-Mobile version, but I use my S7 at home; in fact I never activated the device on T-Mobile. I think that part of the problem with battery drain is that one cannot turn off the 3G modem. The S7 automatically disables the connection to 3G when the WiFi connects, but the modem is still working (there is still a signal strength on the task bar).
From past experience with phones, that 3G modem drains a lot of power.
Does anyone know of a way to disable the modem itself? I'm not interested in rooting at this point, but maybe there is some setting I am missing?

If you load DJ_Steve's S7 ROM, there is a hack to disable the RIL. That gave me much better battery life.

I just leave mine in airplane mode with no SIM inserted, enable and disable wifi as needed.

First off, what's RIL?
Second, I've also heard that the cellular is trying to connect on the software side. Any truth to this?
I'm wondering how this tab might fare, battery-wise, with it not pinging for a cell signal and 3G (or 4G, depending on the signal you get, or both and only 1x active) off. Can you set it so only one radio is getting play? Also, can you set profiles so that one gets used over the other? Example:
Screen off = 2G only
Screen on = 3G only
Internet apps (such as browser and YouTube) = 4G only

Z4nd4r said:
First off, what's RIL?
Second, I've also heard that the cellular is trying to connect on the software side. Any truth to this?
I'm wondering how this tab might fare, battery-wise, with it not pinging for a cell signal and 3G (or 4G, depending on the signal you get, or both and only 1x active) off. Can you set it so only one radio is getting play? Also, can you set profiles so that one gets used over the other? Example:
Screen off = 2G only
Screen on = 3G only
Internet apps (such as browser and YouTube) = 4G only
Click to expand...
Click to collapse
One of the posts above indicates that he is using a hacked software version, and the battery life is indeed much better without 3G.
Using airplane mode would work if I was only using the device to read books, for example, but I generally use it for online work.
I think the replies confirm my suspicion that the 3G modem is drinking the juice. Not too much of a hassle since I keep it at home next to the charge cable, but (especially with that non standard charge cable) it will not be so good outside the house (unless one is using the T-Mobile 3G, but that takes $$).

daveid said:
I just leave mine in airplane mode with no SIM inserted, enable and disable wifi as needed.
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Click to collapse
I use mine similar to this but I have a sim card in as well. I have a widget for airplane mode and one for wifi on my main home screen. I have airplane mode and wifi enabled most of the time but when I am out and need data (not very often) I just disable airplane mode for a short time.
This works well and the battery life is more like a minor inconvenience.
To do this same thing manually I'm sure juice defender ultimate should work since you could set up profiles for wifi, 2g and 3g (disclaimer: I haven't tested that idea but some people on this forum have juice defender ultimate and might be able to comment)

djUniversal said:
I use mine similar to this but I have a sim card in as well. I have a widget for airplane mode and one for wifi on my main home screen. I have airplane mode and wifi enabled most of the time but when I am out and need data (not very often) I just disable airplane mode for a short time.
This works well and the battery life is more like a minor inconvenience.
To do this same thing manually I'm sure juice defender ultimate should work since you could set up profiles for wifi, 2g and 3g (disclaimer: I haven't tested that idea but some people on this forum have juice defender ultimate and might be able to comment)
Click to expand...
Click to collapse
The problem is that when the WiFi is on, so is the 3g. I confirmed this with my battery widget; 57% of the battery drain was due to the 3g modem IIRC.

stevedebi said:
The problem is that when the WiFi is on, so is the 3g. I confirmed this with my battery widget; 57% of the battery drain was due to the 3g modem IIRC.
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Click to collapse
If you activate wifi by turning airplane mode off then the 3g radio will stay on in the background while you are using wifi.
If you turn on airplane mode then wifi you will only have wifi active. Just make sure that the airplane mode symbol is on in the top right beside the wifi icon.

djUniversal said:
If you activate wifi by turning airplane mode off then the 3g radio will stay on in the background while you are using wifi.
If you turn on airplane mode then wifi you will only have wifi active. Just make sure that the airplane mode symbol is on in the top right beside the wifi icon.
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Click to collapse
Thanks, I will try it tonight! That should improve my battery life a lot. I'll report back.

Wow,
That worked great. I didn't realize that flight mode did not override all radios. Thanks for the tip!
Sent from my Streak 7 via xda app

daveid said:
I just leave mine in airplane mode with no SIM inserted, enable and disable wifi as needed.
Click to expand...
Click to collapse
This has also worked for me with the SIM inserted. I get great sleep times with new OTA upgrade left at default settings and keeping the S7 in airplane mode, unless charging. I only turn on wifi when I need it.
Also very important: if you're using the S7 only with wifi, turn background sync off from the power widget, when you are setting the tablet aside for some time. I believe this is where the battery drain actually occurs. If background sync is left on, the S7 continues to try to update location services and your various accounts, even though airplane mode is on.
I have "slept" the S7 (airplane mode with wifi off and background sync off) when I get to work at about 90% charge and come back to it at the end of the day at 75%, ready for the commute home.
Sent from my ADR6300 using Tapatalk

Why the 3g/4g radio still on when I connected to wifi

Hi I have had several smartphones and I've had all the 4g Verizon phone and when I connect ti wifi automatically mobile data turn off or at least icon disappear from status bar but with the revolution and with this bionic that's no happen somebody can tell me why thanks
Sent from my DROID BIONIC using XDA App

Do you get the color change as described in this thread? http://forum.xda-developers.com/showthread.php?t=1261253

Mine does this
My bionic also stays connected to the mobile network when wifi is on and sometimes it will pull from the network instead of switching to wifi. the radio is all messed up on my bionic.

Well is not a mess I mean when I am connected to wifi my phone use wifi internet instead the mobile data but I guess with wifi n mobile data use more battery I guess I don't know the revolution is like bionic the same happens
Sent from my DROID BIONIC using XDA App

I see this on mine as well. I know some people have indicated that it is not really connected to 3G, here is what I'm seeing:
When Wifi is turned on, the 3G (or 4G if lte is enabeld) sometimes stays on. Sometimes it changes to white (indicating that it may still be connected, but not syncing to google through that connection), sometimes it stays blue, and once in while it actually goes away, but not often.
Some other threads seem to indicate that this is just a display bug. However, if I analyze my battery stats, I think the connection is actually staying on. Here is what happens:
* With just a plain 3g/4G connection and no wi-fi, if I look at the battery stats for Cell Standby, the "time on" increases as expected. If there was a period when the cell signal was dropped, I will also see the percentage ot time without a signal.
* When I turn on Wifi and the 3G icon stays on, if I look at the battery stats, the Cell Standby's time on continues to increase, but not the "percentage of time without a signal" also increases. This seems to indicate that the cell signal is staying on, but it knows it is not connected and is searching for a signal. I'm not sure if this is actually eating up more battery like when you really don't have a signal and it is searching, but it is being reporting that way at least.
* If I install a widget to disable 3G/4G while on wifi, the icons go away, but I still see the same thing happening in the battery stats. This could indicate that it is still connected, or it could invalidate what I'm seeing altogether, not sure.
In any event, I'm not sure what the real story is here, I never had the icons stay on with previous devices (Droid X and X2), so I never investigated the battery stats. However, I see alot of people talking about their Cell Standby taking up a lot of battery, I wonder if this plays in to it.
-Chris

yeah I don't think it's really on either. I verify this by using speed test. I know my speed at home and lte is faster. lol

When I use juice defender I disable mobile data when connected to a wifi SI icon disappear this happen with the revolution and bionic I don't see on tbolt nor charge
Sent from my DROID BIONIC using XDA App

My 4g icon stays on while connected to wifi and stays blue. But according to speedtest the speeds reflect connection to wifi.

kookahdoo said:
My 4g icon stays on while connected to wifi and stays blue. But according to speedtest the speeds reflect connection to wifi.
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Click to collapse
Mine is doing the same, but its still draining the battery like CRAZY when browsing on supposed wifi... Definitely a bug.

Mine is the same way but I can't use anything on my network like google tv remote or printershare it says it can't see anything on the network. Tried other phones and they work
Sent from my DROID BIONIC using xda premium

It should prefer wifi over 3G/4G. I keep this page bookmarked on my Droid that shows IP and ISP name to test it.
http://www.dslreports.com/mspeed?whoami=1&w=

I have been on wifi all night. 3g lights on. However, my data useage for the month have not changed. I am confident that 3g is not being called upon
Sent from my DROID BIONIC using xda premium

Dbeayon said:
I have been on wifi all night. 3g lights on. However, my data useage for the month have not changed. I am confident that 3g is not being called upon
Sent from my DROID BIONIC using xda premium
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Click to collapse
My experience is similar.

Wi-Fi showing under battery usage while off?

I have had my Verizon Moto X DE for a few days now and have been loving it. At my work, my old gnex would be without signal for 80% of the day. With the Moto X, it dropped all the way to 10% or less (could be a coincidence that Verizon made the network better the day I received my new phone...data speeds are about 5 times faster than they were as well).
Battery life is also much improved with the Moto X with only 100mAh more battery capacity compared to my gnex + extended battery. I am wondering about the battery usage reported on the Moto X. I do not turn Wi-Fi on (milking that unlimited data), but the battery usage is showing Wi-Fi using around 8% of my battery. Does Wi-Fi enable itself on the Moto X when location is set to 'High accuracy'? Battery has been fine for my usage, but I rarely connect to Wi-Fi and only use it at home if at all (especially now that LTE is faster than my home internet lol). Is there a disadvantage to using 'Device only' location mode if you do not connect to Wi-Fi networks?

That's a loaded question.?
If you go to WiFi settings and click advance there's a setting for WiFi scanning while WiFi is off. That's why WiFi usage shows higher than average. You can just turn that off.
High accuracy will use your cell signal, WiFi signal and GPS to get a faster lock. However, if you only leave GPS on depending where you are it will take much longer for the GPS alone to lock on your location. I personally just leave it on battery saver which is cell/ WiFi if available. If you're using navigation than you have to make it high accuracy so that it can get a good lock and not send you on a bad route.
Sent from my XT1060 using xda app-developers app

Wifi and Data status bar icon issue

Okay so I need some help. Out of the box when you have wifi on you'll see the wifi signal strength indicator and Data strength indicator but the "LTE" icon will be hidden until wifi disconnects and mobile data is connected. I was trying out the setting "Aggressive Wifi/Cell Handover" and while it sounds good in theory it doesn't provide any noticable difference in real world use.
Anyone since having that turned on the LTE icon remains visible in the status bar even when connected and using WiFi. It's not the end of the world by any means but I'd like it to not be there as it wouldn't be before I tried out that particular setting. I've turned off the setting and restarted my phone a handful of times but the pesky LTE icon persists to remain visible at all times....
Does anyone know how I could get rid of it? I've tried everything and I've grown desperate now.
Thanks all.
Sent from my Note 8

Pure+ said:
Okay so I need some help. Out of the box when you have wifi on you'll see the wifi signal strength indicator and Data strength indicator but the "LTE" icon will be hidden until wifi disconnects and mobile data is connected. I was trying out the setting "Aggressive Wifi/Cell Handover" and while it sounds good in theory it doesn't provide any noticable difference in real world use.
Anyone since having that turned on the LTE icon remains visible in the status bar even when connected and using WiFi. It's not the end of the world by any means but I'd like it to not be there as it wouldn't be before I tried out that particular setting. I've turned off the setting and restarted my phone a handful of times but the pesky LTE icon persists to remain visible at all times....
Does anyone know how I could get rid of it? I've tried everything and I've grown desperate now.
Thanks all.
Click to expand...
Click to collapse
Turn off Cellular Data always active/On. That might be turned on in that same developer menu list.

Pure+ said:
Okay so I need some help. Out of the box when you have wifi on you'll see the wifi signal strength indicator and Data strength indicator but the "LTE" icon will be hidden until wifi disconnects and mobile data is connected. I was trying out the setting "Aggressive Wifi/Cell Handover" and while it sounds good in theory it doesn't provide any noticable difference in real world use.
Anyone since having that turned on the LTE icon remains visible in the status bar even when connected and using WiFi. It's not the end of the world by any means but I'd like it to not be there as it wouldn't be before I tried out that particular setting. I've turned off the setting and restarted my phone a handful of times but the pesky LTE icon persists to remain visible at all times....
Does anyone know how I could get rid of it? I've tried everything and I've grown desperate now.
Thanks all.
Sent from my Note 8
Click to expand...
Click to collapse
Factory reset.

android-incredible said:
Factory reset.
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That's unfortunate.
Sent from my Note 8

LTE indicator on the signal strength bar showing when I am connected to WiFi

This seems new, and it is annoying me.
The little "LTE" text next to the signal strength indicator in task bar is showing, even when connected to WiFi. Typically, when connected to WiFi, the LTE text drops, indicating that the LTE connection itself has dropped.
I had ensured that I don't have the phone set to maintain an LTE connection even when connected to WiFi, and also that data is actually routing our over WiFI, and not LTE for any reason.
Any ideas?

robber said:
This seems new, and it is annoying me.
The little "LTE" text next to the signal strength indicator in task bar is showing, even when connected to WiFi. Typically, when connected to WiFi, the LTE text drops, indicating that the LTE connection itself has dropped.
I had ensured that I don't have the phone set to maintain an LTE connection even when connected to WiFi, and also that data is actually routing our over WiFI, and not LTE for any reason.
Any ideas?
Click to expand...
Click to collapse
Happens to me too. Notice it more when I wake my phone