Jump to content

Breaking Band: Tri-band LTE / eCSFB issues thread


Recommended Posts

----

EDIT:

 

If this is your first time to this thread, please read this article by Robert (S4GRU Admin): 

 

http://s4gru.com/index.php?%2Fblog%2F1%2Fentry-357-nexus-5-and-lg-g2-experience-temporary-sprint-lte-connectivity-issues-due-to-circuit-switched-fallback-technology%2F

 

 

OP:

----

 

As more and more inconsistent LG G2 and Nexus 5 user observations have filtered in over the past few days, S4GRU has decided to reopen a thread that we created as a placeholder to address LTE connectivity issues, if necessary.

 

So, if you have a Sprint Spark tri band device -- especially but not limited to the LG G2 and Nexus 5 -- please report your LTE connectivity experience and location.

 

See my two hypothetical examples below...

 

 

Handset:  LG G2

LTE connectivity:  Great, LTE in places never had before

Location:  Smallville, AB 22222

 

Handset:  Nexus 5

LTE connectivity:  Weak, loses LTE or refuses to connect

Location:  Capital City, YZ 33333

 

 

Please keep this thread objective and factual.  Complaining about the situation serves no productive purpose. But gathering anecdotal evidence that we can cross reference with our Network Vision progress maps can help get to the bottom of the current issues.

 

Finally, expect further edits to this top post, especially as additional insider information and/or S4GRU technical analysis becomes available.

 

Thanks in advance for your reports...

 

AJ

 

------------------------------------------------

 

EDIT:

 

Follow this link for a Sprint memo explaining why Tri-Band devices are not connecting to LTE in some areas: http://s4gru.com/index.php?/topic/5001-tri-band-lteecsfb-issues-thread/page-3?p=235876&do=findComment&comment=235876

 

Follow this link for a breakdown of incumbent and non-incumbent markets, and what that means for your Tri-Band ("Spark") device: https://docs.google.com/spreadsheet/ccc?key=0AhjoCbLKCt72dHJKMTVrc3lrSE95cklOTnB0V0c0M1E&usp=drive_web#gid=0

 

We're still looking for additional reports, as this does not account for all issues.

 

-David

  • Like 17
Link to comment
Share on other sites

The thread is open.  Start submitting your reports.  S4GRU is on the case...

 

AJ

  • Like 4
Link to comment
Share on other sites

LG G2:

 

No LTE Connectivity al all.

 

Harrisburg, PA 17104, 17111

 

Hershey, PA 17033

 

Hummelstown, PA 17036

 

Steelton, PA 17113

 

No modifications or configuration changes to the handset. 

Link to comment
Share on other sites

LG G2:

 

No LTE Connectivity al all.

 

Harrisburg PA 17113, 17104

 

Ah, yes, please include in the report your chosen handset -- and if you have made any modifications or configuration changes to it.  I will make the appropriate revision to the top post.

 

AJ

Link to comment
Share on other sites

Raleigh, NC market. NEXUS 5.

 

LTE if forced in engineering, but no mobile network if set as such, cant make or receive calls. Phone must be set to 3G.

 

Sent from my Nexus 5

 

Edited by smorcy11
Link to comment
Share on other sites

Whats funny is I was having this issue for almost 2 days when I got the device but then it started working normally.

My guess is I was connecting to legacy 3g while 4g was coming from a different tower. They just finished upgrading my towers 3g so the issue went away.

  • Like 1
Link to comment
Share on other sites

Same as smorcy11 ^ above.  N5, Raleigh, NC market. I haven't tried forcing it from debug menu but zero LTE except when switching back and forth from Global/LTE, whereupon the icon switches momentarily to LTE but goes back to 3G.

Edited by cswiii
Link to comment
Share on other sites

LG g2, nexus 5. Lincoln, NE. 68504. No lte. (Connects for 1-2 seconds then falls back to 3g) -4g only accepted sites

 

Sent from my LG-LS980 using Tapatalk

. Will test the sites west of town that are 4G / 3G accepted.

 

Sent from my LG-LS980 using Tapatalk

 

 

Link to comment
Share on other sites

LG G2

 

Excellent 4G reception with no loss of voice or sms

 

Merrmiac, MA, 01860

 

Note: Traveling between Worcester MA and in the Greater Boston area today, 4G LTE worked as well as it did on my Note 3 so it seems to be fine in Central to Northeastern MA where LTE has been live for quite some time.

Edited by jfenton1957
  • Like 3
Link to comment
Share on other sites

So far all these areas look 'purple' to me.

 

Right.  And this "purple" hypothesis is what we want to test.  Scientific method -- you will not find that at a lot of other sites.  But S4GRU holds itself to a higher standard.  We hope that is why you keep coming back.

 

;)

 

AJ

  • Like 13
Link to comment
Share on other sites

Right.  And this "purple" hypothesis is what we want to test.  Scientific method -- you will not find that at a lot of other sites.  But S4GRU holds itself to a higher standard.  We hope that is why you keep coming back.

 

;)

 

AJ

well that and the funny videos. Keep up the good work :)

  • Like 2
Link to comment
Share on other sites

Nexus 5

Midtown Manhattan 10022

Connects to LTE but data speeds are slower than 3G

Same results before and after I enabled all bands.

 

Live in NJ, 07083, no official LTE but my N5 sometimes shows it is connected but slower than 3G speeds.

 

So is my issue related to what is going on here? I show that I am connected to LTE but my speeds are roughly .25 to .50 Mbps down.

Link to comment
Share on other sites

I am currently in the virgin islands and lte is working perfect on my nexus 5 but I will be back home in atlanta on thursday which has lots of band 41 sites all over the place.  I will give an update then.

  • Like 1
Link to comment
Share on other sites

Handset:  Nexus 5


When connected to LTE then going to making a phone call, will always default to 1x voice and not 1x800. (I'm in a heavily saturated 800SMR area)


Location:  Sycamore, IL 60178 & DeKalb, IL 60115


Link to comment
Share on other sites

. Will test the sites west of town that are 4G / 3G accepted.

 

Sent from my LG-LS980 using Tapatalk

. LTE works great west of Lincoln for the 3G/4g accepted sites

 

 

Screenshot_2013-11-09-19-35-17_zps6a7935

 

Sent from my LG-LS980 using Tapatalk

  • Like 1
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • large.unreadcontent.png.6ef00db54e758d06

  • gallery_1_23_9202.png

  • Posts

    • Since this is kind of the general chat thread, I have to share this humorous story (at least it is to me): Since around February/March of this year, my S22U has been an absolute pain to charge. USB-C cables would immediately fall out and it progressively got worse and worse until it often took me a number of minutes to get the angle of the cable juuuussst right to get charging to occur at all (not exaggerating). The connection was so weak that even walking heavily could cause the cable to disconnect. I tried cleaning out the port with a stable, a paperclip, etc. Some dust/lint/dirt came out but the connection didn't improve one bit. Needless to say, this was a MONSTER headache and had me hating this phone. I just didn't have the finances right now for a replacement.  Which brings us to the night before last. I am angry as hell because I had spent five minutes trying to get this phone to charge and failed. I am looking in the port and I notice it doesn't look right. The walls look rough and, using a staple, the back and walls feel REALLY rough and very hard. I get some lint/dust out with the staple and it improves charging in the sense I can get it to charge but it doesn't remove any of the hard stuff. It's late and it's charging, so that's enough for now. I decide it's time to see if that hard stuff is part of the connector or not. More aggressive methods are needed! I work in a biochem lab and we have a lot of different sizes of disposable needles available. So, yesterday morning, while in the lab I grab a few different sizes of needles between 26AWG and 31 AWG. When I got home, I got to work and start probing the connector with the 26 AWG and 31 AWG needle. The stuff feels extremely hard, almost like it was part of the connector, but a bit does break off. Under examination of the bit, it's almost sandy with dust/lint embedded in it. It's not part of the connector but instead some sort of rock-hard crap! That's when I remember that I had done some rock hounding at the end of last year and in January. This involved lots of digging in very sandy/dusty soils; soils which bare more than a passing resemblance to the crap in the connector. We have our answer, this debris is basically compacted/cemented rock dust. Over time, moisture in the area combined with the compression from inserting the USB-C connector had turned it into cement. I start going nuts chiseling away at it with the 26 AWG needle. After about 5-10 minutes of constant chiseling and scraping with the 26AWG and 31AWG needles, I see the first signs of metal at the back of the connector. So it is metal around the outsides! Another 5 minutes of work and I have scraped away pretty much all of the crap in the connector. A few finishing passes with the 31AWG needle, a blast of compressed air, and it is time to see if this helped any. I plug my regular USB-C cable and holy crap it clicks into place; it hasn't done that since February! I pick up the phone and the cable has actually latched! The connector works pretty much like it did over a year ago, it's almost like having a brand new phone!
    • That's odd, they are usually almost lock step with TMO. I forgot to mention this also includes the September Security Update.
    • 417.55 MB September security update just downloaded here for S24+ unlocked   Edit:  after Sept security update install, checked and found a 13MB GP System update as well.  Still showing August 1st there however. 
    • T-Mobile is selling the rest of the 3.45GHz spectrum to Columbia Capital.  
    • Still nothing for my AT&T and Visible phones.
  • Recently Browsing

    • No registered users viewing this page.
×
×
  • Create New...