So ive had a look around and there are no sgs2 threads about the cell standby
Basically, my cell standby sits at "100% time without a signal" no matter what i do.
I have tried changing the network mode to GSM only, WCDMA only and Auto but to no effect. its not taking up a HUGE amount of battery (6%) but its slightly odd...I remember on the hero going into the *#*#4636#*#* menu and adjusting from there used to work but doesnt save on the gs2....also on the hero that figure was down to around 2-3% time without a signal
phone was bought from o2 but is now on t-mobile after being unbrandi-fied / generic firmware-fied and rooti-fied
Thoughts?
Same here.
100% without signal, yesterday was 97%. However, I'm making calls, and receiving calls without problems.
Bought from UK (Handtech) and used in Saudi on Mobily network.
Been 4 days so far, and none of my contacts reported not being able to reach me.
thannks for your response, would be interesting to see what every1 else is experiencing....
I have not had problems with receiving / making calls but it does seem strange that it is so high
Do this, after turning on the phone, put it in flight mode for 15 sec. Should fix it, at least until next reboot
My cell standby is at 3%
icezar1 said:
Do this, after turning on the phone, put it in flight mode for 15 sec. Should fix it, at least until next reboot
Click to expand...
Click to collapse
thanks, will try that and update....
winwiz said:
My cell standby is at 3%
Click to expand...
Click to collapse
care to elaborate on your network / coverage / area / 3g/hspa on/off and if its set to Auto/WCDMA/GSM
Uodated to KE2 and signal loss was at 0% for a couple of hours, until I took a one hour nap, in flight mode. When I went back to normal mode, signal loss was at 17%.....
tamarian said:
Uodated to KE2 and signal loss was at 0% for a couple of hours, until I took a one hour nap, in flight mode. When I went back to normal mode, signal loss was at 17%.....
Click to expand...
Click to collapse
Hi, thanks for ur update! Input is appreciated, I have not updated to the latest firmware so I can't comment...will do wen I get time tho and see if its made a difference!
Sent from my GT-I9100 using XDA App
Related
Hi,
I watched my battery info a moment ago and don't know if those stats are normal.
Cell standby: 42%
- Time on 19h 44m
- Time without a signal 100%
Display: 20%
Android System: 15%
Phone idle: 7%
Android OS: 6%
"Cell standby" seems to use much battery power and my phone signal strengh does not show more than 2 of 5 "bars" in the notification bar (inside buildings). Data network is not enabled.
Now I'm not sure if the antenna of my phone might be defect cause of this high battery usage. I am also sometimes not reachable if people try to call me.
http://forum.xda-developers.com/showthread.php?p=15648244#post15648244
sounds like what were going through mate!
WongKit said:
Hi,
I watched my battery info a moment ago and don't know if those stats are normal.
Cell standby: 42%
- Time on 19h 44m
- Time without a signal 100%
Display: 20%
Android System: 15%
Phone idle: 7%
Android OS: 6%
"Cell standby" seems to use much battery power and my phone signal strengh does not show more than 2 of 5 "bars" in the notification bar (inside buildings). Data network is not enabled.
Now I'm not sure if the antenna of my phone might be defect cause of this high battery usage. I am also sometimes not reachable if people try to call me.
Click to expand...
Click to collapse
But you miss the key component battery used in that time span .
1% battery used 90% used ???
Your post reads as phone not receiving a signal .Phone sleeping/not in use .
Of the battery used in that time 42% was cell standby NOT 42% of the battery 42 % of the amount used .
more than 2 of 5 "bars" in the notification bar (inside buildings)
No network will guarantee any reception inside buildings . Faraday cage and all that .
Test the phone outside the building first for signal strength .
jje
Cell standby
If you know you wont have signal turn airplane mode on, to save it from searching for a signal all the time, and thus draining some battery.
@Jesmicael: Thanks! I'll watch this thread.
@JJEgan:
My phone uses about 12% battery within 9 hours. No display, no data network, no wlan, no gps, but about 1h of listening to music in this timespan.
I got signal inside buildings most time (with 0-2 bars) but it also happend to me that I was not reachable, even when I placed the phone next to an open window. Outside of the building I have maximum signal.
I did not have any problems with my older LG phone in the same situation.
Of course I know that this 42% are just compared to other battery users
@veyka:My phone is not placed in an isolated cage, and I want to be reachable in this time. Airplane mode is good for saving battery, but not when you want to use a "phone" ^^
WongKit
WongKit said:
@Jesmicael: Thanks! I'll watch this thread.
I got signal inside buildings most time (with 0-2 bars) but it also happend to me that I was not reachable, even when I placed the phone next to an open window. Outside of the building I have maximum signal.
Phone gives full signal so nothing wrong with the phones hardware or antenna .
Your alternative is to take the phone to a service centre .
jje
Click to expand...
Click to collapse
Seeing as you're pretty much putting your phone in stasis for the 9 hours of usage. i think its pretty normal drain. it just looks like the only thing the phone is actually using is the antenna.
Just a wild idea, did you set the phone to GSM/WCDMA auto?
PrimaryComplex said:
Just a wild idea, did you set the phone to GSM/WCDMA auto?
Click to expand...
Click to collapse
Yes, but does it matter, if I have no data connection enabled? If so, what should I use instead?
Maybe this battery "drain" of the cell standby is normal, when I do not use the phone in this time. On the other hand I am a bit confused, cause due Samsungs official data sheet, the phone should last up to 620h in standby with 3g enabled.
Of course the realistic value is less than 620h, but not 6 times less.
Ive come to realise that this might just be an erroneous stat. I honestly don't think it takes up 100% of my battery. Cell standby has actually deceased since I've flashed villainrom 2.1
any one else have a clue?
I had a theory that since my gsii its actually gt-i9100t not gt-i9100 it might make a little,difference.. whoo knows.. :/
Sent from my GT-I9100 using XDA App
I've come to the conclution that the SG2 is not for use it all day, I have turned it on this morning connected all day to wifi/dataplan and after 14 hours the battery is dead. Will not be able to use it for an entire day.
Pd: wanted to share a pic but seems that the forums are not allowing the png format.
Sent from my GT-I9100 using XDA App
mine lasts all day even with pretty heavy useage mate
you will get about 5 hours screen time on average from this device and battery .
I suggest checking to see if you have killed samsung bloatware that likes to run all the time , installed juice defender which helps a lot , adjusted your start up programs , installed latest firmware or a custom rom like leomar2.1 , if you cant get 3g signal switch to 2g only , switch wifi/gps/bluetooth off when not in use .
Doing all of the above will get you excellent battery life and you will easily last through the day .
The only way i can kill my battery in a day is with some severe gaming sessions and dlna sessions or internet browsing sessions
Battery and phone are fine its the setup thats important
Hope you get it sorted peeps and have a great day too
Look its really normal. You phone will use power in standby, so there is really nothing wrong. The numbers are relative.
I work in an office which is a level below ground in central Sydney so most of my work day I am out of reception.
Now I do venture into reception areas so every now and then so don't want to turn aeroplane mode on and off all the time.... So please don't suggest this.
With my previous phone (i8000) I didn't have such a drain on battery when out of reception all day from what I remember. I used to get really long standby times but I didn't use the screen anywhere near as much.
Now I know the phone will use more power in low reception areas because it needs to turn the sensitivity up to get clear signal. But the i9100 seems to drain much more than all my other phones I have used.
I am on stock I3 firmware with CT Root kernel. I have a high level of 44% Cell Standby with only being on for 6 hours (and out of reception for 3 of them) even though I have used the screen for 1 hour and that only shows 37% of usage. I don't remember it being this bad on H3 but to be honest I didn't really check for comparison of usage.
Is this normal? My old O2 phone on win mo used to go into a state of sleep for searching for reception when at work because it used to take a few minutes sometimes, after I got into reception zone, to realise I had reception. The i9100 seems to get it straight away which makes me think is it polling all the time I am at work and draining the battery more because it tries so hard?
Hope I made this clear.
So it appears like from research this high drain is fairly common on android devices when in no reception areas. I could understand why it would happen in low reception areas where the phone uses more power to pick up a weak signal. But why would the phone continually do this in a NO recpetion area. I thought samsung would have made the phone relaise it has no reception and only try every 5 minutes or so...
I never noticed this on my i8000 or any of my win mo phones before it. I assume they realsied there was no reception and stopped polling at full strength the whole time I was at work. This would have been indicated by the slight delay of leaving my bilding before getting messages sometimes where now its instant. But without the battery usage stats I can't compare.
I have tried to find an app that automatically puts the phone into aeroplane mode when NO signal for 30 minutes or something. And keep s turning aeroplane off every 5 or 10 minutes or so. But I have yet to find anything.
I realise there are programs that will use GPS and do it automatically but this is not ideal. I only want it to happen when I have no reception.
Any ideas of ways to fix this without me manually putting my phone into aeroplane mode when I'm in my office and remembering to take it back out when I know I should have reception? I don't want to use location based because this doesn't work when I go up one level.
Just bumping my ancient thread.
After an app that will recognised NO reception for long periods and automatically put flights mode on. Then turn flight mode off briefly every 5 minutes or so to check if reception is back.
In my office I have no reception but if I go up two levels I do. So time based automation does not suit nor does location based unless it knows what level I am on.
See above for the long story
Sent from my GT-I9100 using XDA App
Hello!
I've got my Xperia Mini Pro more than a month ago and have been experiencing some issues with the battery life and with the reception.
Besides the Xperia I also have a Nokia N82, both phones have a sim card from the same operator and both are set up to use only 3G and manual operator selection; putting both phones on the desk, the N82 gives me almost full strenght signal while the SK17i shows me no bars, if I pick up the SK17i it looses connection and I have to walk around the room like a dowser looking for signal. Moreover, once I found the perfect spot which gives me 2 bars, I have to hold the phone with two fingers because holding it with my hand makes it loose connection.
On top of this there is the battery drain problem: if I leave the SK17i in the perfect spot on the desk with the data connection on, the battery lasts max 3 hours (some times less than 2 hrs) with a full charge.
Also when I put it in my pocket leaving data on and I walk around the office, after a while the phone gets quite hot and to make it cool down I have to turn off data.
All this happens when I'm at work, when I go back home in the weekend the phone lasts a whole day having data connection and/or wifi turned on all time, also it doesn't get so hot.
My guess here is that in low signal areas there is a software component that litterally sucks the battery. Has anyone experienced this? And has anyone noted how the reception of this phone sucks?
Any idea of an app that can let me locate the battery-sucking piece of software?
PS: the phone is not rooted and has original FW and the latest apps updates that came out since it was bought. I've also immediately deleted McAfee crap and other bundled bloatware
I have the phone since Friday and also got bad reception problems.
It varies badly also without moving the phone. I can confirm that I lose all signal bars when holding the phone in my hand.
Can't say much about the data reception because it's the first time I have a data plan.
Sent from my SK17i using XDA App
Hi!
Since it'a a while that you've got the phone, have you been able to notice how long does the battery last? Does it last longer if you're in an area with good signal?
Thank you
Honestly I can't really tell unfortunately.
At home I have bad reception and at work mostly none
But I think that changing the Network Type to GSM auto (PRL) helped a bit with battery drainage and also reception.
You get to the settings with *#*#4636#*#*
Thanks for the hint, I'll try it and I'll let you know although I don't think it will work in my case since I have the 3 operator which works only in 3G/WCDMA and not in GSM.
BTW, what is that *#*#4636#*#* code? Do you know other codes like this?
Thanks
You can input the code through the dialer and a hidden menu appears.
I just googled for other similar codes and found this site:
http://www.askvg.com/google-android-hidden-secret-codes/
You could also try the app Elixir 2. That's how got to the hidden menu in first place.
I did try the GSM (PCL) setting as you suggested but nothing has changed even after the 2.3.4 update, in low signal areas the battery just lasts a couple of hours if data is on, 5 hrs if data is off; at home I kept it with wifi on for a whole day and in the evening I still had about 20% battery left so it's the search for signal that drains the battery.
The last test I'm going to make is to change operator and see if in gsm mode works better.
Thanks for the answers
You can also try set Search mode to manual instead of Automatic in Mobile Network settings.
Smiley76 said:
You can also try set Search mode to manual instead of Automatic in Mobile Network settings.
Click to expand...
Click to collapse
It's the first thing I did: disable roaming and set search mode to manual, although I noticed that the phone connects to other networks anyway but allowing only emergency calls.
Searching for a network is definitely a huuuge drain on battery, combine that with people's mysterious loss-of-signal issues and bam, battery drain.
It is confirmed here too that my signal is weak. My phone is SK17i
I live in a marginal signal area - and lose the signal fairly regularly.
Check the battery stats in the "About Phone" sub menu in settings. Unless those figures are cooked-up - there's very little drain from anything other than the display on my phone - and I have had wifi and data+GPS turned on most of the day.
In fact, I lose the signal even when charging or on a fully charged battery.
As an observation - the loss of signal seems to occur during or immediately after using certain apps like the maps - ones which make use of GPS or background data.
Just a tip.
Have any you confirmed if the same problem remains using another (perhaps newer) SIM card?
Because I know that sometimes problems like these can be caused by using older SIM cards.
Johan-SEAnswers said:
Just a tip.
Have any you confirmed if the same problem remains using another (perhaps newer) SIM card?
Because I know that sometimes problems like these can be caused by using older SIM cards.
Click to expand...
Click to collapse
Today I switched operator, went to one who has also 2G coverage and not only 3G like the previous one, I've had data, baground data and sync on, have been using the phone quite intensively and the battery is now at 59% after 4hrs.
With the previous operator it used to last only 2-4hrs.
Let's see what happens in the next days.
PS: In the past week I've tried disabling background data and the battery lasted almost 2 days, but to go online I used only wifi and not 3G. It seems background data is one of the highest battery drainers.
My Sk17i worst
My rooted sk17i even can't connected to the internet, the 3G signal is low, and the bigest problem that makes me annoyed is the battery can't charge into the maximum capacity. -_-
Each operator has there own share of bandwidth at different frequencies and drains battery differently
2g requires less battery
3 requires more battery
Auto- drains the most if your data is on also,your constantly searching for basetowers
Basebands can be changed to get optimum signal from your provider
3g will drain battery quicker than WiFi too
Newer 4g/lte is more efficient
66 baseband is good for me 3UK
Sent from my SK17i using xda app-developers app
---------- Post added at 01:57 PM ---------- Previous post was at 01:57 PM ----------
Spare battery around is the easier option too
Sent from my SK17i using xda app-developers app
---------- Post added at 01:59 PM ---------- Previous post was at 01:57 PM ----------
And a BlackBerry charger is handy too as it has higher voltage to charge aka quicker
Sent from my SK17i using xda app-developers app
Hi everyone,
I dunno whether this have been posted, but I have discovered that, on the latest firmware 2.1.1.a.0.6 unrooted, when the phone set to wcdma/3g only the battery last so long.
After a day (24hrs) of standby and few sms, it has dropped to 75%.
Before I was on 2g/ both with wcdma preferable, 100% to 0% in 12 hrs only without doing anything.
could someone please try to see if it works the same for you.
Nope
because of different hardware and different software, i think it could be that.
i have used (before i jumped to android 2.3) 3G and it goes down too fast. this is the first time im seeing someone using 3G and saying it lasts more..! i have no idea!
I had to try locking the phone to 3G only just to test this, and now the phone goes from 100% to 75% in 11 hours. Not much difference from 3G/2G. 2G only is much better for battery life.
If your battery is zapped within 12 hours, you have some other problem.
after 3days6hrs, there is still 20% of juice left. few sms and about 20minutes of voice call during that period
incredible.
blackhawk1 said:
after 3days6hrs, there is still 20% of juice left. few sms and about 20minutes of voice call during that period
incredible.
Click to expand...
Click to collapse
The difference probably has to do with network coverage in your area. I think picking one protocol over the other and not having the phone check both bands save on battery.
In my area, there's plenty of 3G coverage, and setting to 3g only, on my MiniPro 2 has saved on battery.
I suspect if you're in a good 2g coverage area, with spotty or bad 3g, setting to 2g only is probably better.
Mike
I have a Telus SG3 (Canada) and my battery was empty after 7 hours without any usage (stand by and a couple of text messages that's all). This was happening mostly during the week (when I'm at work).
I suspected something with the LTE and taking the subway. Yesterday my cell battery was draining really fast, I decided to reboot the cell phone and the draining stopped. I was at 60% at 12h32pm and then 46% at 13h42 without any usage (lte and wifi on, stand by). I rebooted my SG3 at 13h55 while I was at 43%, afterwards much better, I was at 40% at 15h12pm and 36% at 16h48.
Today, I closed my cellphone before entering the subway and opened it up after the ride. It's 14h00 and I'm at 86% !!!!!
I'm telling you guys, this is a huge concern for Samsung. But for now, I'm just glad I found an alternative to this huge problem.
Ref: http://forum.xda-developers.com/showthread.php?t=1777226&page=5 (HTC One X)
This is normal. When your phone loses signal...the radio works twice as much to try and gain a stable signal back. So even though you're not actually using your phone, it the radio causes your phone to stay on. Unless you put your phone in airplane mode.
babymatteo said:
This is normal. When your phone loses signal...the radio works twice as much to try and gain a stable signal back. So even though you're not actually using your phone, it the radio causes your phone to stay on. Unless you put your phone in airplane mode.
Click to expand...
Click to collapse
But why should it work twice as much after I regained the signal (I'm talking about 45 minutes ride). The battery drain starts when I get out of the subway station.
I have no signal at work and the battery would be dead by the time I would head home. Now I put it on airplane mode > use wifi + google voice to text. The battery is usually around 70% when I head home.