[Q] 4G signal serach? - EVO 4G Q&A, Help & Troubleshooting

So hopefully someone can help me out with this. I live in an area where 4G coverage is really good in some areas and very spotty in others. I'm a HEAVY data user, and everytime I want to use 4G (when I'm in an area that I know has 4G) I have to turn it on and wait for it to pick up the signal. My question is if I were to just leave my 4G turned on all of the time; does it use a lot of battery life constantly searching for a signal, or is the Evo pretty good about managing that so I don't get heavy battery drain having my 4G turned on in areas where there's no coverage? What are some of your experiences with this, or does anyone else live in a similar area and have the same issue?

4g is battery heavy even in a good signal area so I definitely wouldn't just leave it on.

Related

Question for those in new 4G areas

For those who are getting lit up with 4G, did you see a plummet in 3G speeds prior to launch?
The reason I ask is that I had a massive drop in service with my t-mo phone the two weeks prior to them turning up HSPA+, then like magic all was good. I have 4G less than 10 miles from me, and the three towers by my house are now pathetically slow for data.
I am hoping there is a correlation
Gonna go for one bump and I will drop this.
Admittedley yes, my 3G speeds went from 900KBps-1MBps to 300KBps-400KBps.
4G seems to be getting faster though.

Wifi or 3G?

I live in an area that has 3G and 4G in certain areas im regularly in. Now Ive only used 4G a handful of times so i dont want that put into the equation at all. Out of curiosity what saves more battery a very strong wifi connection or 3G when im usually in an underground basement?
Wifi will give you much better battery life
Sent from my EVO using XDA App
cool i figured as much since itd be a mucn better signal.

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
Click to expand...
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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.
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T-Mobile Reception in Los Angeles

For folks in the Los Angeles area,
How is your reception with T-Mobile? Currently, I get really good 4G when I'm roaming around outside but when I step into buildings I notice a huge drop, to even 3G/2G at times, and it seems as if my phone is constantly on standby searching for a better signal which in turn is killing my battery life. Wondering if I'm the only one or if others are experiencing this as well.

Typical Issues in New 4G Area?

I live in Salina, KS, and although the city as not been announced by Verizon to have 4G as of yet, I have had 4G service for about 2 weeks now I believe. I have been having some signal issues where the phone will have solid 4G with very fast speeds, and then later when I wake up the phone it will go from 4 bars of 4G to dropping signal entirely. Not just 4G but complete signal loss, hollow triangle. Then takes it anywhere from 20 seconds up to a minute to reestablish a connection. It seems that if I have the phone set to CDMA only, I do not have these problems. Is my Nexus' LTE radio having issues, or is it a result of Verizon testing 4G in a new area?
Edit: Forgot to include that as a result of this, horrendous battery life.
I have a logcat here if it would be helpful to anyone. Now that I'm watching it with a logcat it's not doing it (go figure). But I started a logcat and reset the radio with airplane mode. There are a ton of generic failures. If anyone would be so kind to take a look and see what they think, it would be greatly appreciated.
I see a bunch of "GENERIC_FAILURE" on the GSM radio, but I'm not experienced enough to know what most of it means.

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