Sprint Tri-Band Galaxy S4 and CDMA

[jnichols16]

I have a Sprint Tri-Band Galaxy S4. For the past two weeks, I have had no signal in my house.

I talked Sprint into sending me a Airave 2.5+ at no cost. After I set it up, still no bars.
I tried my wife's flip phone and it got 5 bars.

When troubleshooting my Galaxy S4, I first checked "Network Mode" in Settings, it was on "Automatic".
I switched to "CMDA" and got 5 bars, but no LTE Data, only 3G.

When I tried "LTE/CMDA" I got LTE back (Not from the Airave), but no voice.

Which brings us to my question -- Why no CMDA voice in "Automatic" ??

Then just to test, I turned the Airave off, I now had 3 bars in my house from the Sprint tower.
Switching to "Automatic" left me with 0 bars again.

I would think with no signal in "Automatic" mode, it would then seek other bands and find the signal.

I can only guess that "Automatic" seeks the 1900 Mhz band, and Airave is on 800 Mhz.
I can't be absolutely sure because Sprint won't tell me.

If I'm right, why won't my Tri-Band Galaxy S4 find the signal on 800 Mhz??

 

[ToddK]

My new airave didn't work until I called and Sprint activated it - even though it was supposed to have been already activated?

Sent from my SPH-L720 using Tapatalk

 

[jnichols16]

Mine is activated, and it works, but only in "CDMA", not "AUTOMATIC"