900f reception and battery life - Galaxy S 5 Q&A, Help & Troubleshooting

Hello, so i have had an internationally unlocked 900 f for a while now, and i am currently on the latest phoenix rom with ktoon kernel, and i have noticed that in canada, the reception is always poor, 1-2 bars and it might spend a couple of hours without signal at all, and i believe it is why my battery only lasts for 10 hours with only 1 hour of screen on time.
Can anyone help me fix this please, i have tried only gsm, and wdsm( or whatever is in the options) and lte, and they all yeild around the same except lte, which is almost nonexistent reception. I have went through all my wakelocks and they seem harmless, at the 10% level of batter, i have 5 min wake locks, whic seems fine

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Battery life draining too fast; "Android OS" to blame?

I've noticed that my battery life is draining somewhat faster than seems reasonable...
After 7 hours away from my charger I'm at 36% remaining, and frankly haven't used the phone much today. Two 5 minute calls and a bit of playing with email.
The battery status shows that 'Android OS' is using 43% of the battery at the moment. Next after that is the screen at 19%.
Is that normal? Or have I installed something that is draining away at it? What is the best app to identify the malevolent drainer?
Many thanks in advance!
my "Android OS" is always somewhere around 2-3%. You running stock build? mebby reboot the phone and check again?
Stock build.
Have rebooted and killed most of the apps that came along with the reboot. Will watch it over the rest of the day and see if the problem repeats.
Screen usually 70% Android 2-3%.
Mine was horrible then i saw an app G backup.that I had on auto eating up 40%... changed it to manual and eliminated that and an overheating issue... Wierd.
I have been having issues with battery life also. My cell standby was using 65-85% between charges. It would go down to 20-25% battery life after 7-8 hrs with little to no use. I did a factory reset and everything was great for one day, cell standby dropped to about 4%. I added some apps, recharged overnight, and in the morning after 1 hr battery was down to 80%, cell standby back up to 75%. not sure if it's an app i installed or not. At home i have been using a different micro usb charger, not the stock one. I'm wondering if that could be the cause. I did a 2nd factory wipe this morning and now cell standy is back to 4%. I'm going to only use the OEM charger and only add apps 1 at a time to try and narrow down the cause.
do you have the 3g problem?
my guess is ... if your phone keep switching between 3g/edge or umts/hsdpa
you keep using wireless radio and thus consumes much more power
no, I've never had any 3g problems, other than only getting a max download speed of about .8Mbps.
I called HTC about the high cell standby usage and they suggested - turning screen brightness all the way down, turn off GPS, turn off bluetooth, turn off wifi, etc... If I have to have everything turned off so my battery won't die then what's the point of having an otherwise awesome phone. It's been an hour now since unplugging and cell standby is at 20%, battery life at 98%. I guess we'll see...
Battery issues are almost always due to apps (or services) running, especially ones that are constantly using a data connection.
That's why Apple don't allow the iphone to run anything in the background ;-)
If it was fine after reset and then bad after you added some apps then you know one of them is to blame......
My nexus one has been unplugged for 24 hours now and is at 66% (fairly light use in that time to be fair).
it's possible that android synching could cause usage to spike to those levels, but that shouldn't be happening very often.
I leave syncing on all the time and my phone is easily 14 or 15 hours to get to 20% with what sounds like heavier usage than what konsta is reporting.
I read some guy solved most of the battery issues by turning off GPS. I'm now following this practise after a full charge from completely dead to see how it goes. I normally have to charge once per day, I do use the phone quite a lot, not much for phone calls though, twitter, facebook, sms, tech news etc!
I think that my "Android OS" drain must have been a one-time event (hope so, anyway). After my reboot I'm now up to cell standby as my primary usage. I've spent a fair bit of time in the last few hours in patchy signal areas, so seems fair.
Will see how long it lasts tomorrow.
I agree that the GPS seems to be the biggest battery killer. Completely drained my machine in next to no time when I was playing with Copilot live.
I am actually impressed with the battery life on the n1. I can keep GPS on and use it, playing games on the train and answering emails and calls all day long with seesmic constantly running and easily get through the entire day. If I don't charge it overnight I will be about 15-20% remainig in the morning. I have stock android os on an unlocked n1.
Power drain solved....
Hi every one.
My battery life to was abismal, that was until I read this over on Modaco.
GSM 2G+3G ("WCDMA preferred") drains battery over 5 times faster than exclusive 3G ("WCDMA Only")
Average battery drain / hour when phone is idle with screen off:
1-Standard shipping mode WCDMA prefered, i.e. both 2G and 3G enabled, Wifi off): 10% / hour
2-Alternate WCDMA Only mode, 3G exclusively, no Wifi: 1.7% / hour
So I tried changing the phone settings from WCDMA prefered to WCDMA only. WOW battery life instanly better!!! 3G still works and phone OK.
To do this enter *#*#4636#*#* on phone dial pad, select phone information, then scroll down to selection box, change set preferred network type to WCDMA only. Switch phone to airplane mode, then switch airplane off and watch your battery performance increase by 300% plus...
gadjet said:
Hi every one.
My battery life to was abismal, that was until I read this over on Modaco.
GSM 2G+3G ("WCDMA preferred") drains battery over 5 times faster than exclusive 3G ("WCDMA Only")
Average battery drain / hour when phone is idle with screen off:
1-Standard shipping mode WCDMA prefered, i.e. both 2G and 3G enabled, Wifi off): 10% / hour
2-Alternate WCDMA Only mode, 3G exclusively, no Wifi: 1.7% / hour
So I tried changing the phone settings from WCDMA prefered to WCDMA only. WOW battery life instanly better!!! 3G still works and phone OK.
To do this enter *#*#4636#*#* on phone dial pad, select phone information, then scroll down to selection box, change set preferred network type to WCDMA only. Switch phone to airplane mode, then switch airplane off and watch your battery performance increase by 300% plus...
Click to expand...
Click to collapse
Are you on T-Mobile?
gadjet said:
Hi every one.
My battery life to was abismal, that was until I read this over on Modaco.
GSM 2G+3G ("WCDMA preferred") drains battery over 5 times faster than exclusive 3G ("WCDMA Only")
Average battery drain / hour when phone is idle with screen off:
1-Standard shipping mode WCDMA prefered, i.e. both 2G and 3G enabled, Wifi off): 10% / hour
2-Alternate WCDMA Only mode, 3G exclusively, no Wifi: 1.7% / hour
So I tried changing the phone settings from WCDMA prefered to WCDMA only. WOW battery life instanly better!!! 3G still works and phone OK.
To do this enter *#*#4636#*#* on phone dial pad, select phone information, then scroll down to selection box, change set preferred network type to WCDMA only. Switch phone to airplane mode, then switch airplane off and watch your battery performance increase by 300% plus...
Click to expand...
Click to collapse
Are you on T-Mobile? Do you have a fairly strong 3g. signal ? if one did have a fairly strong 3g signal would this still be advisable?
rockky said:
Are you on T-Mobile? Do you have a fairly strong 3g. signal ? if one did have a fairly strong 3g signal would this still be advisable?
Click to expand...
Click to collapse
Hi rockky.
No I am on Orange, I usually only get a full strength 3G at my works and not usually at home, however since getting a Nexus 1 i now get a limited 3G at home..
after uninstalling mobile defense and city caller id my bat went back to normal.
I noticed pretty good battery improvement when I turned off GPS (only turn it on when I need it).

[Q] Crazy high cell standby killing my battery life?

Help!
I'm running the 81xx firmware on a direct-from-dell unlocked Streak.
My battery life has so far been abysmal, and looking at the battery usage screen, my cell standby is usually over 60% while idle is less than 20%, everything else like 2%. This isn't from weak signal, though; I am in a well-covered 3g-only area and my phone has reported only being disconnected about 4% of the time.
Another strange thing is, my data indicator is constantly switching between the H symbol and the 3g symbol.
Anybody know what's going on?
It might be that while you are well covered for 3g, you are marginal for HSDPA and that constant switching back and forth is using your battery. I have not tried it but have a look and see if you can disable HSDPA in settings somewhere and see if that helps.
i'm usually around 40% cell standby.. do u have any task killer apps installed? although people think those are useful they usually do more harm then good.
I have the same problem, and I used another Android phone in the same location (hence same cell coverage) with no such problems. I just took my phone off the charger and had the display on since then non-stop. Cell standby used as much battery as the display!! There's no way that is appropriate.
I'm running build 8102, but it was the same with 6941 before. Can't tell about 1.6 as I bought my streak used with 6941 on it.
What Android version are you guys running? Maybe we can find common denominators.. :/
Edit: here's a screen shot of the battery usage after a while off the charger with the screen on constantly:
http://i.imgur.com/3OrqZ.png
You must be Australian W0nk0
Do you think your antenna might be loose or defective?
I can't imagine the antenna to be loose really - but who knows, I bought mine used. If so, I think there is a signal strength value in " about phone" somewhere, no?
What signal strength are others getting? I'll post mine later, I'm on airplane mode right now so that I get some battery life.. :/
For signal strength, I am getting -75 to -95, and 9 to 12 for the two values while riding the train (not subway).
It also appears my battery life is quite good when my phone is in standby and not doing anything... the problem seems to come from net browsing or anything else that uses an active connection... Just browsng XDA is taking about 2% a minute!
Oh and my android is the 81xx 2.1 version with the modaco tweaks
Sent from my Dell Streak using XDA App
I had really high cell stand-by too. then i installed juicedefender, now my cell standby is down to about 29%.
I think the main thing is that it disables data connections while your screen is off and only turns it back on when the screen is on and unlocked. It also has a setting where it enables data connection periodically to allow background syncs and whatnot.
I'd recommend you guys give it a go, it had almost doubled my battery life!!
Mine shows,
cell stand by 50%
phone idle 44%
it seems quite common on the streak as I read in all the forums. I am on 2.1 stock rom? what's 1.6 like?

signal issues/battery issues

I am having a problem, my 3g and H signal are constantly changing, and idk if it does, but my battery life seems effected. the "phone" portion in the battery statictics is always somewhere at around 50 percent. i have tmobile, signal seems fine im always getting somewehre are 9mbs and even 17 by my job.

signal/battery issues

I am having a problem, my 3g and H signal are constantly changing, and idk if it does, but my battery life seems effected. the "phone" portion in the battery statictics is always somewhere at around 50 percent. i have tmobile, signal seems fine im always getting somewehre are 9mbs and even 17 by my job. could that be causing the "phone" to hold such a big part of my battery

[Q] No LTE + Battery drain after tethering

I got a weird one for you guys. I had LTE on my nexus 4, but after tethering for awhile, my LED started flashing red and the phone got hot. So I turned off tethering, but my LTE became intermittent, and over the course of the next day, I lost LTE connectivity altogether, even if I set it to LTE only, I wouldn't get any signal. This is what I've tried, changing different hybrid radios, changing ROMs, factory restore to original ROM. The other symptom, and the one I care more about, is that my battery now drains pretty quickly, whereas it would last 3 hours of screen time on before this incident, now it lasts less then an hour. And it seems to drain while the phone screen is off. Anyone have any ideas what it could be? Did I burn out my LTE modem?
I think you need a new battery.
Planterz said:
I think you need a new battery.
Click to expand...
Click to collapse
I have a feeling it has something to do with the modem. Day 2 with the damaged phone reveals that my signal will go in and out, sometimes it will be on 3g, sometimes on edge (even in 3g areas). If that's the case, a new battery won't necessarily help.
Now 3g is gone completely. I can only use 2g. Anyone else run into this problem?
I had this problem a few years back. It was the wireless provider who was adjusting my internet speeds. After one simple call they stropped doing this and my phone was always connecting at 3G (I don't have the LTE hack installed)

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