Develop Bugs

Verizon users you keep it on LTE/CDMA ?

Curious if its worth saving battery life to just keep the network on CDMA only during the day ?
I came from Sprint and they had the 4G toggle on most Android devices, I never used it, maybe 05% of the time, WiMax was such a battery hog, and so spotty to ever a hold a solid connection anyways, just seemed like a waste. But Sprints 3G really sucked too, like 1xEdge speeds.
Does keeping the Nexus on LTE cause signal issues ? Meaning does it jump back and forth between 3G and 4G causing dropped calls if you on the phone and move into a non LTE area ?
Thanks
Sent from my Galaxy Nexus using xda premium

I only bother to switch mine off when I am on my days off from work. I get great 4g signal at work but none at home. I haven't payed close enough attention to battery usage to notice a difference though.

As far as battery life goes, I've found there isn't much difference at all if LTE is on/off. It's the screen that kills the battery. That being the case I don't bother switching it off anymore.

I leave LTE on all day and my battery lasts all day. As long as that's the case I don't pay any attention to battery life. I also never leave 4G coverage though.

I am new to Verizon. Live in the Chicago area, I would assume a big market like this has solid LTE coverage ?
I just know from Sprint, keeping the phone on 4G was a fast battery kill. If left on WiMax you were lucky to get 4 hours on a full charge.
Hopefully LTE is better than WiMax on the battery, I know for sure it way better network coverage.
Sent from my Galaxy Nexus using xda premium

Zorachus said:
I am new to Verizon. Live in the Chicago area, I would assume a big market like this has solid LTE coverage ?
I just know from Sprint, keeping the phone on 4G was a fast battery kill. If left on WiMax you were lucky to get 4 hours on a full charge.
Hopefully LTE is better than WiMax on the battery, I know for sure it way better network coverage.
Sent from my Galaxy Nexus using xda premium
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Yeah better coverage and probably easier to find a signal due to frequency differences.

I use ihtfp69's LTE toggle to turn off LTE/CDMA to just CDMA when I leave work. I live in a pretty poor 3g signal area, so leaving LTE on just drains my battery unnecessarily. I turn it on when I get into the LTE area, works great since it's a widget.
Sent from my Galaxy Nexus using Tapatalk

Usually the issue, IMO, is if you are moving between an LTE area and a non-LTE area or if you're at the edge of LTE coverage, so your phone loses its LTE connection, searches, reconnects, etc.
If you've got a solid LTE connection and it's uninterrupted you won't drain battery as fast.
As to whether LTE usage drains your battery faster than 3G usage... I can't say.

I usually leave my lte on unless I know I have to push my battery... coming from sprint evo then photon which are complete battery hogs on 4g due to the joke they call 4g coverage...
Sent from my Galaxy Nexus using Tapatalk

The key issue is whether you have a weak or non-existent LTE signal. I find that in some areas such as these if the phone is on LTE I do not get 3G service, or the service goes on and off. If I switch to CDMA only 3G will work much better. I've only used the phone for limited times in areas with strong 4G so I couldn't compare batter life when set for 4G.

I toggle lte off when home, no 4g signal does drain my battery. At work with great 4g signal I toggle it back on. Gives me an excuse to look at the beautiful battery draining screen.
Transmitted from my Galaxy Tab 10.1 via Tapatalk

Question on network battery drain

I have the Verizon LTE Nexus. Curious about battery drain between CDMA only vs LTE/CDMA ?
Let's say phone is sitting on my desk, in 3G only it shows half bars, then switch to 4G it shows full bars.
If phone just sits there, screen off, does the battery drain more on 4G ? Or it doesn't matter at idle when not touching/using the phone ?
Obviously if you are in a poor 4G area battery will drain higher due to it looking for the LTE network right ? But in Chicago and burbs, LTE seems pretty solid, especially at my office area, full bars on 4G.
Opinions ?
Sent from my Galaxy Nexus using xda premium

i think the phone will use more power at 4G idle even with full bars, simply because LTE chipsets are still far too new and not yet mature. CDMA has been tweaked for years and is more power efficient.
give LTE a few years for chipsets to get smaller, and more power efficient.

The last LTE phone I had was the bionic and in the Chicago area where LTE is plentiful I had no problems leaving it on all the time. Your mileage may vary of course but by Wrigley I didn't notice too much drain
Sent from my Galaxy Nexus using xda premium

Wifi vs 3g. What's better for battery life?

What do you guys usually leave on when at home? I get about 50-60% signal at my house with crap 3g speeds so I tend to get better battery life with wifi on.
Sent from my SPH-D710 using XDA

Same here, always use wifi at home. Even with good 3g speeds it doesn't compare to the speed on wifi
Sent from my SPH-D710 using xda premium

Been using wifi at home now and getting way better battery even tho I get good 3g/4g signal as well. The battery life is a lot better on wifi.

Wifi...and its not even close!
Sent from my Nexus S 4G using xda premium

Wifi for sure. My signal is so hit and miss at home that I have started using airplane mode with WIFI on. I use groove IP (I don't make many calls) and Google voice app for sms. Battery life is wayyy up.

Wi-Fi radio signals are far less powerful - mainly because they don't need to communicate over such a distance - and as such chew up less battery. Not to mention using Wi-Fi doesn't go against any quotas that you may have with your carrier, unless the Wi-Fi is through them too.

WiFi always, if available. If you leave sync on overnight, make sure you have WiFi set to never sleep as well.

Wifi duh, 3g is too slow and 4g drains my battery too quick.

Switching through 3g and HSDPA+ for no reason

Hi,
I have had my One x since this Monday, constantly using mobile data because i didnt have WiFi at hand. I noticed my battery dropping super fast for no real reason. What i also noticed was the icon all the time switching back and forth between 3g and H ... I dont really know why this is happening, does anyone have an idea? Now that im using WiFi my battery seems to drop a lit less quickly..
Offtopic question about the battery: when i got the phone i didnt let it charge before i started using it, i just let it drop from the 20 % to 0 and then charged it... Did this maybe mess things up?
Thanks a lot
Sent from my HTC One X using XDA

Same here. I'm having the same issue. I'm using mine on AT&T.

I have seen my signal go 3G to H+ a lot but my battery is no worse than my GNex. I am also on ATT.
Sent from my HTC One X using XDA

Generally speaking, my Android phones have shown a 3G symbol when not using data, and will switch to H when starting to transfer data. This is when you have 3G network coverage.
A bigger battery drain is normally when you have poor signal, and the phone is always trying to search for a signal, or when it is constantly going between 2G and 3G/H.
Being on wifi is definitely easiest on the battery though.
Sent from my HTC One X using xda premium

Mmm thats weird never seen that happen with my previous phones... I always thought the arrows on the side indicated wether or not they were using data or not... The arrows beside the 3g flash as well when using data...
I hope the update comes soon. Because i dont really like the battery life atm
Sent from my HTC One X using XDA

.26 firmware has major batt issues... You guys are not alone...I'm getting more pissed by day...

mr.boonet said:
Mmm thats weird never seen that happen with my previous phones... I always thought the arrows on the side indicated wether or not they were using data or not... The arrows beside the 3g flash as well when using data...
I hope the update comes soon. Because i dont really like the battery life atm
Sent from my HTC One X using XDA
Click to expand...
Click to collapse
See if you get the arrows beside the 3G symbol. I'm pretty sure on mine, as soon as the arrows come along, it switches to an H.
Sent from my HTC One X using Tapatalk

You are completely right about the arrows thing. I just can't imagine the switching being better for the battery or whatever... Seems to me that just keeping it on H would be less hard on the battery than constantly switching between 2 radio's.
Or is it 1 and the same radio?

mr.boonet said:
You are completely right about the arrows thing. I just can't imagine the switching being better for the battery or whatever... Seems to me that just keeping it on H would be less hard on the battery than constantly switching between 2 radio's.
Or is it 1 and the same radio?
Click to expand...
Click to collapse
Am pretty sure 3G and H are the same thing, so it won't affect battery drain. It's not like switching between 2G and 3G, which I think causes more battery drain because your phone is searching and switching. I'm sure there's some expert here that can clear it up.
Sent from my HTC One X using Tapatalk

Mm ok indeed, but i guess when the engineers at htc/google do it like that, and it's not only happening on my device, there should be quite a good reason for it
Sent from my HTC One X using XDA

I think some confusion is present here.
3G data and HSDPA data are both 3G technologies on the same frequency bands. However HSDPA uses MORE power because it bonds on multiple channels to get the bandwidth up. When the phone is doing very low amounts of data, or no data, it will revert to 3G only to save power. It will ONLY go to HSDPA when it is obvious there is much data to be transferred! This behaviour is correct and appropriate.

Just thought I would add there is only one mobile network radio in our phone so there will never be any radio switching issues.
M.
Sent from my HTC One X using xda premium

jonstatt said:
I think some confusion is present here.
3G data and HSDPA data are both 3G technologies on the same frequency bands. However HSDPA uses MORE power because it bonds on multiple channels to get the bandwidth up. When the phone is doing very low amounts of data, or no data, it will revert to 3G only to save power. It will ONLY go to HSDPA when it is obvious there is much data to be transferred! This behaviour is correct and appropriate.
Click to expand...
Click to collapse
That makes absolute sense. Except that what tends to happen (with me at least) is that it switches multiple times while I am trying to load something which interrupts the transfer again and again. Sometimes I get 'Connection error' messages while trying to download apps from Google Play. If I keep trying, it will download successfuly after a few tries, when it can stabilise long enough on either 3G or H. And it isn't a situation where I'm on the edge of either because this happens no matter where I am. Any insight on this?

jonstatt said:
I think some confusion is present here.
3G data and HSDPA data are both 3G technologies on the same frequency bands. However HSDPA uses MORE power because it bonds on multiple channels to get the bandwidth up. When the phone is doing very low amounts of data, or no data, it will revert to 3G only to save power. It will ONLY go to HSDPA when it is obvious there is much data to be transferred! This behaviour is correct and appropriate.
Click to expand...
Click to collapse
It's called "fast dormancy," do a search on XDA or Google. It saves battery provided the carrier you're using supports fast dormancy. It's erratic when they don't and should be turned off. AT&T supports fast dormancy so that shouldn't be the cause for anyone on their network to have abnormally high battery usage. I’ve used an i9100 for a year all over AT&T’s network and never had an issue with fast dormancy active. And it works exactly like described above. In certain parts of the country (EG: Louisiana) my battery drains 25-50% faster but that's due to signal not fast dormancy.

you guys also have to calibrate your battery in order to get a decent battery life

Fast dormancy can be disabled by going to service menu by typing *#*#9900#*#*
Worked with most of my devices. Donno it will work with this device as i dont have one now.

Network Mode CDMA/LTE

So here is a question, I reside in a city that is not even on the list of getting LTE in next couple of years. So my question is that if I change the setting under Network Mode to CDMA only vs. CDMA/LTE would that save me some battery (since it's not constantly scanning for LTE)?
And are there any side effect to CDMA only when it comes to data quality?
Thanks in advance

I switched mine to CDMA only within a few minutes of turning it on. I haven't had any problems with data. Couldn't say about battery savings, though, as I have no reference point.

Yeah it should save some battery since it's not searching for available lte.
sent from my L9HUNDRED

It increased my battery considerably. I was in a fringe area for lte last weekend and turning off LTE gave me considerably more battery.
Sent from my SPH-L900 using xda premium