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  #11 (permalink)  
Old 06-12-2010, 07:50 AM
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Required Read-Another battery life trick!!

First things first, go into Settings> About Phone> Battery> Battery Use> Cell Standby. Assuming your phone has been on, or off the charger for ~10 minutes, it should show Time Without Signal at around 50%.

Next thing, press HOME, and bring up the dialer. Dial *#*#4636#*#* (Do not press "Call"). After a second, it should bring up the "Testing" menu.

Go into Phone Information, press MENU, and tap "select radio band." You should experience a Force Close, don't panic, this was supposed to happen. Scrolling down shows that the preferred network type is GSM auto (prl).

What this means is that even though you are connected to a CDMA network, your phone is trying to find a GSM network, preventing the radio from sleeping, and causing excessive battery drain.

Remedy this by tapping GSM auto (prl), and changing it to CDMA auto (prl).


Now your done, your TWS should drop dramatically, and you should experience much better battery life!

Note: You need to do this every time you reboot.

Here is a link to the original thread.

http://forum.xda-developers.com/showthread.php?t=700601


EDIT:

You can also go to the Android market and download an app called "Network". It brings you to the same place!
Thank You Brock1909 for the tip!
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Last edited by NinjaMom; 06-12-2010 at 03:52 PM. Reason: Add to title -NinjaMom
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Old 06-12-2010, 07:54 AM
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Re: Another battery life trick!!

good info - going to try this out. thanks!
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Old 06-12-2010, 08:09 AM
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Re: Another battery life trick!!

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Originally Posted by chino331 View Post
good info - going to try this out. thanks!
Your welcome...This fix definitely looks promising!!
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Old 06-12-2010, 08:51 AM
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Re: Another battery life trick!!

program called Network in the market that allows you to do this.
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Old 06-12-2010, 09:05 AM
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Re: Another battery life trick!!

I didn't experience the force close and mine was already set to CDMA auto (prl). I rebooted this morning so it reset my stats, but my "Time without a signal" is only 4%.
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Old 06-12-2010, 09:08 AM
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Re: Another battery life trick!!

Quote:
Originally Posted by Brock1909 View Post
program called Network in the market that allows you to do this.
what category is this program Network under. I can't find it.
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Old 06-12-2010, 09:15 AM
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Re: Another battery life trick!!

Quote:
Originally Posted by Fabulas View Post
what category is this program Network under. I can't find it.
Just do a search for the word Network...it should come right up.
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Old 06-12-2010, 09:27 AM
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Re: Another battery life trick!!

Thanks for the info. However, my phone was already set to CDMA prl, yet my Time Without Signal is consistantly around 65%
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Old 06-12-2010, 09:29 AM
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Re: Another battery life trick!!

I checked mine out and I was at 0% time without signal so out of curiosity I checked what radio band I was on and it was already set to CDMA. They may have corrected this on the second round of phones released.

Thanks for the post, I do like all the info that key pad combo tool gives. Very informative.
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Old 06-12-2010, 09:39 AM
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Re: Another battery life trick!!

I just applied it, as well as doing the prl update and then I rebooted and the setting stuck.
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