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Vinsanity93

Android Enthusiast
Apr 8, 2010
335
44
NY
Ever since changing my preferred network to CDMA auto my phone's battery life shot up to an up time of about 16hrs and awake time of about 4hrs at 50% on a single charge. :D
 

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Does this have to be called?
Does this hurt/help reception?
Are there any negative side effects to this?

Go to your dialer and dial *#*#4636#*#*

click Phone Information

Menu>Select Radio> Force Close

Scroll down you will see that your Default Radio is GSM (prl)

Hit the drop down menu and select CDMA auto (prl) then hit the back button, after it finishes you can hit the home button and you are finished.

It is changed.

No the ONLY effect that I've had is LONGER battery life. To help reception go into your dialer and dial ##778 and hit Call.

Click Edit Mode the Pass Word is 000000 then hit OK.

Click CDMA Settings

Scroll Down to Home Page and click it.

Change from EVRC to EVRC-B and click ok.

Press back and back. You are finished. Better signal strength and better call quality. (For me at least).
 
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Phone starts out as CDMA, when you cause the force close it causes it to go to GSM, then you have to change it back to CDMA. People have over-ripe imaginations. ...and yes I've done this. It did nothing for my battery life whatever.
I noticed this as well. Ah first I thought I thought "hey, mine's set the wrong way!" but that was only after the force close, which had reset it. No battery gains, sadly.
 
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That's not true. #*#*4636*#*# and check it for yourself. Mine was set to GSM (prl). After changing it, my battery time improved as well. Not conjecture, fact.
It is true. Neither conjecture nor fact, just misunderstanding.

It is set to CDMA by default. When you go into the radio menu and it force closes, it just happens to start on the GSM option. Mine, yours, and everybody else's started by default on CDMA.

So there is no battery improvements, signal strength improvements, or any other effect because literally nothing is being changed.

Now what you mentioned about dialing 778, THAT can indeed improve call quality. In some locations. For other locations, it can cause entire loss of signal. Just have to try that one for yourself. YMMV.
 
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Now what you mentioned about dialing 778, THAT can indeed improve call quality. In some locations. For other locations, it can cause entire loss of signal. Just have to try that one for yourself. YMMV.

Completely agree!!

Be careful people, you need to be in an area that supports whatever change you make otherwise you will hose your reception completely.
 
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