Question regarding leaving on CDMA/LTE vs. CDMA.

sandman512

Senior Member
Nov 12, 2007
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So, LTE is not in my area as of yet:(. Every once in a while, I travel to the city which has LTE. So my question, should I just turn it on when I know I'm going to be using it or can I just leave it on all the time? Will it drain my battery? Thanks!
 

mnhertz26

Senior Member
Jul 6, 2010
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Fort Lauderdale, FL
It makes absolutely no difference which mode you have it set to unless you have LTE in your area. It will not drain any additional battery. There is one exception... If you have a Sprint Airrave (home signal booster for areas with poor service), you want to keep it on cdma mode. Cdma/lte mode when connected to the Airrave disrupts text messaging.

Sent from my SPH-L710 using xda app-developers app
 

joeyhdownsouth

Senior Member
Apr 1, 2009
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Creole State
It makes absolutely no difference which mode you have it set to unless you have LTE in your area. It will not drain any additional battery. There is one exception... If you have a Sprint Airrave (home signal booster for areas with poor service), you want to keep it on cdma mode. Cdma/lte mode when connected to the Airrave disrupts text messaging.

Sent from my SPH-L710 using xda app-developers app
Doesn't at all affect my airvana. When I 1st got this phone there was a provisioning issue that disrupted text messages only when connected through airave.

this message brought to you by my GalaxyS3 running Phantom's Blazer
 

musclehead84

Senior Member
Nov 3, 2010
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Falling Waters, WV
http://google.about.com/od/socialtoolsfromgoogle/a/How-To-Turn-Off-4g-Android-4g.htm

One of many articles explaining that leaving lte on does drain battery because it searches for lte signal.

Sent from my SPH-D710 using xda premium

---------- Post added at 02:09 AM ---------- Previous post was at 02:08 AM ----------

It makes absolutely no difference which mode you have it set to unless you have LTE in your area. It will not drain any additional battery. There is one exception... If you have a Sprint Airrave (home signal booster for areas with poor service), you want to keep it on cdma mode. Cdma/lte mode when connected to the Airrave disrupts text messaging.

Sent from my SPH-L710 using xda app-developers app
Wrong

Sent from my SPH-D710 using xda premium
 

Success100

Senior Member
Jan 31, 2008
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Cleveland
yeah, that makes no sense. a radio searching for a signal once a day is going to draw more power than a radio not searching at all. Now think about if you leave it on all the time. its going to be searching for a LTE signal at whatever interval that the LTEscan timeout and wakeup is set at.

so, short answer, if you are not in an LTE area, turn it off
 
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