Database Info

Connect Rooted Jelly Bean S3 to 3G HSPDA data

I have my wifes Verizon S3 that I updated to jellybean to get global capabilities, then I rooted the phone and was able to set a custom APN.
Im in Costa Rica and using the phone for voice and data. I have both working, however I am not connecting to the 3G network here, only the 2G edge network with slow speeds. My RAZR MAXX is connecting to the 3G HSPDA network just fine and the speeds are actually quite impressive. The APN settings in my RAZR are identical to those in the S3.
Is there a setting somewhere or something that I can do to force the S3 to connect to 3G data and not 2G? Ive check every setting I can find and I see nothing.
Thank you all so much here at xda , you have been an amazing help so far.

Perhaps a custom ROM? Or is there an app that will let me manage the radios/frequencies?

The phone only has one 3G UMTS/HSPA/+ band, and that is 2100 MHz.
It's possible that the network you are using in Costa Rica doesn't support the above band, and your other phone has additional bands that the network does support!

How do you force LTE mode and not HSPA?

on the device the preferred network type is LTE but most of the time it falls back to HSPA mode and not LTE how do you force the LTE mode only? My location get's 3-4 bars for LTE coverage and all 5 bars for HSPA but LTE is faster

Dial *#*#4636#*#* on the keypad and under phone settings there is LTE only. Your phone won't work for calls possibly after you do this and you won't get data outside of an lte area.
Sent from my Nexus 5 using Tapatalk

coorsleftfield said:
Dial *#*#4636#*#* on the keypad and under phone settings there is LTE only. Your phone won't work for calls possibly after you do this and you won't get data outside of an lte area.
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
Thank You. Yes it did work but changed it back since I need my cell phone to be a cell phone for calls

sillyshyme said:
Thank You. Yes it did work but changed it back since I need my cell phone to be a cell phone for calls
Click to expand...
Click to collapse
How do you change it back? Mine keeps reverting back to LTE only and I am unable to make and receive calls.

Did you get calling back?
Sent from my Nexus 5 using Tapatalk

sillyshyme said:
on the device the preferred network type is LTE but most of the time it falls back to HSPA mode and not LTE how do you force the LTE mode only? My location get's 3-4 bars for LTE coverage and all 5 bars for HSPA but LTE is faster
Click to expand...
Click to collapse
man, i grepped a whole thread in relation to this very issue, it's a very imformitave read on LTE network overlays on legacy & upgrading cellular & the intro to these single chip, single pathed qualcomm snapdrgon families, but it got closed;
the nexus 5 only has one chip to handle all networking, from wifi, voice calls, to bluetooth;
it's doing quadruple duty, a question, what technology are you using, gsm, or cdma?
~edit~
nevermind it, you mentioned hspa, so it is gsm..
i'm reading up on lte to gsm handover right now.. lol

j'vai said:
man, i grepped a whole thread in relation to this very issue, it's a very imformitave read on LTE network overlays on legacy & upgrading cellular & the intro to these single chip, single pathed qualcomm snapdrgon families, but it got closed;
the nexus 5 only has one chip to handle all networking, from wifi, voice calls, to bluetooth;
it's doing quadruple duty, a question, what technology are you using, gsm, or cdma?
~edit~
nevermind it, you mentioned hspa, so it is gsm..
i'm reading up on lte to gsm handover right now.. lol
Click to expand...
Click to collapse
5 month old thread that was necro'd

Zepius said:
5 month old thread that was necro'd
Click to expand...
Click to collapse
issue solved?

What does this mean?
Sent from my Nexus 5 using Tapatalk

rraicu said:
What does this mean?
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
that's what i'd like to know.. lol
necro'd as in meaning; left'd to wither inthe wind, or because it's 5 months old, it's not worth posting to anymore..
that's why i asked if the issue was solved, there's threads, & posted STILL asking about LTE faulty connections scattered all over the place, so i guess the issue isn't solved in relation to this handset..
i'm in the school of thought, that like a car, or any tool one would use, it's best to grasp a critical understanding of what it's being used ON..
(am i wrong in this assessment?)
from there, once you understand the build of your tool, you compare it what it's being used on, with it's pros & cons; heighten it's pros, lessen it's cons..
wen i went to mexico just two weeks ago, i ordered two telcel prepaid sim cards to use for that 5 day stretch, i noticed i only got version 5 sim cards that didn't do lte that telcel provided, i called back & asked why, & was told that yes, telcel DID provide lte, but not in the area i was visiting, the highest i would get was hspa+, & only in mexico city & within cancun proper would lte be utilied..
knowing this, & knowing i would be off the beaten path on the beach & not in the major city, i opted for the cards sent, settling for the highest hpsa+ speeds..
maybe not all of us, but many of us, purchase our vehicles (& phones) based on critical knowledge of the phone & network in unison, **if we want more utilization from our hansets**
remember that scene - http://nilvideos.blogspot.com/2008/09/transporter-bank-robbery_17.html

I don't want to try disabling the hspa and calling without knowing I can flip it back on easily..
Sent from my Nexus 5 using Tapatalk

rraicu said:
I don't want to try disabling the hspa and calling without knowing I can flip it back on easily..
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
hey, are you on tmobile?
if so, tmobile's roaming is set within it's sim, *unless you manually select a particular nework*
"The device detects and registers on wireless networks inside T-Mobile’s calling area, but roaming networks are usually restricted to T-Mobile SIM cards. You can manually select a network only in areas where T-Mobile does not own GSM spectrum." - ~attachment~
our nexus 5s use single chip, single pathed radios, only one path is used at one time, right?
on the network side, things can be set up pretty differently -
3.3 SUBSCRIBER DATA ASPECTS: USIM/ISIM
Coexistence of LTE with WCDMA/HSPA and GSM Network requires a smooth transition of home location
register HLR towards HSS based on 3GPP specifications. This also helps in providing next generation
Data Layered Architecture that addresses operator’s needs regarding centralization of subscriber data
used for authentication across multiple layers of the same session.
The SIM/USIM is the security token in 2G/3G networks for authenticating a subscriber in the operator’s
HLR. The USIM will continue to provide user authentication function at the access level to the LTE
network.
However, it is necessary to define a mechanism for service level authentication as well, for services such
as the IMS. The ISIM (an application on the UICC) is defined to hold both the user’s access level
credentials and the IMS Private User Identity that is stored in the HSS. The ISIM enables the user to
authenticate to the LTE operator’s IMS network and access its services.
3.4 ROAMING SCENARIOS
There are two roaming scenarios based on home tunneling compared to home tunneling with the
possibility of local breakout as shown in Figure 9. The 2G/3G networks refer to legacy CS or PC based
accesses like GSM/WCDMA in the network
http://www.4gamericas.org/documents/4G_Americas_Coexistence_of_GSM_HSPA_LTE_May%202011x.pdf
to set up domestic roaming on this type of handset ACTUALLY make you roam moreso on other US networks, even though the sim card is provisioned with what network is OK'd?
we're not talking from an older, dual pathed chip paradigm, when that meant exactly *that*..
these newer phones are different beasts..

Yes I'm on T-Mobile.
Sent from my Nexus 5 using Tapatalk

rraicu said:
Yes I'm on T-Mobile.
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
LTE has an all IP backbone, with no circuit switching mechanism, the network would provide that, & from my understanding from reading up on it, wcdma provides the **IP flattening** for voice on the gsm networks, just as ehrpd does for cdma networks..
what would happen if you switch on domestic roaming in -
APN & data settings
To set the Access Point Name (APN) and turn on data settings, follow these steps:
1.From any Home screen, tap the All appsAll Apps.pngicon.
2.Tap Settings.
3.Under 'WIRELESS & NETWORKS," tap More... to display more options.
4.Tap Mobile networks.
5.Check the Data enabled check box.
6.Check the Data roaming check box to receive data when roaming domestically
7.Uncheck the Data roaming check box when roaming internationally to avoid incurring roaming charges.
8.Tap Access Point Names
9.Choose from the following:•MetroPCS - fast.metropcs.com
•T-Mobile GPRS
•T-Mobile GPRS - fast.t-mobile.com
do you think you'd simply, roam on another provider?
i suspect it would aid your phone in it's LTE to GSM voice handling..
i suspect strongly.. setting it to *LTE* in -
Switch 2G / 4G / LTE
To change the band between 2G, 4G, and LTE, follow these steps:
1.From any Home screen, tap the All appsAll Apps.pngicon.
2.Tap Settings.
3.Under 'WIRELESS & NETWORKS," tap More... to display more options.
4.Tap Mobile networks.
5.Tap Preferred Network Selection.
6.Choose from the following:•LTE
•3G
•2G
..........................
on yet another note,, your handset may be functioning more properly than you could imagine; in your OP
"on the device the preferred network type is LTE but most of the time it falls back to HSPA mode and not LTE how do you force the LTE mode only? My location get's 3-4 bars for LTE coverage and all 5 bars for HSPA but LTE is faster"
tmobile's LTE may simply be having issues for a spell, to be worked out at a later date, & you're falling back on hspa+ asa failsafe..
you may not have to change a darn thing..

In the Palo Alto area LTE doesn't always stay on and the HSPA+ does not actually transfer any data. Sometimes hspa+ is on when weak LTE is available. In situations where I want wreak LTE over strong but useless hspa+ I need to force LTE not just prefer it
Sent from my Nexus 5 using Tapatalk

Airave, CDMA and LTE

I just got the Airave and I was wondering how come when I use CDMA only for "mobile networks", I get 5-6 bars i.e. pretty much perfect but when I select CDMA/LTE, I get 1 bar..sometimes two.
More importantly, Airave hasn't fixed this issue but when I go to CDMA only, it seems perfect. How do I go about fixing this?
Thanks
PS - It seems like at home, I have weak LTE (which is what it's connected to by default) rather than holding onto a STRONG 3G signal....how do I make the S5 favor strong 3G over weak LTE?

Which kills more? 3G at -70db or LTE at -102db?

The Airave is only a 3g CDMA over Broadband solution. When you choose CDMA only it's the only choice and is a strong connection. With LTE enabled the device is still trying to keep an LTE link but since your coverage area sucks it keeps falling off. Seems the Sprint GS5 has that issue for everyone where there is bad LTE coverage. It may also be that "Connections Optimizer" crap.
I'd suggest tasker or a similar app for automating setting your mobile network to CDMA Only when at home or elsewhere LTE is crappy and creating another to revert back to LTE/CDMA. There a bunch of threads with people trying to figure out how to optimize their LTE band for their specific coverage. I burned a lot of battery with my N4 constantly trying to decide whether to stick with HSPA+ or other crappy alternative networks. I don't think Google or the manufacturers have done a good job of considering what happens under less than good conditions signal wise.

GorillaPimp said:
The Airave is only a 3g CDMA over Broadband solution. When you choose CDMA only it's the only choice and is a strong connection. With LTE enabled the device is still trying to keep an LTE link but since your coverage area sucks it keeps falling off. Seems the Sprint GS5 has that issue for everyone where there is bad LTE coverage. It may also be that "Connections Optimizer" crap.
I'd suggest tasker or a similar app for automating setting your mobile network to CDMA Only when at home or elsewhere LTE is crappy and creating another to revert back to LTE/CDMA. There a bunch of threads with people trying to figure out how to optimize their LTE band for their specific coverage. I burned a lot of battery with my N4 constantly trying to decide whether to stick with HSPA+ or other crappy alternative networks. I don't think Google or the manufacturers have done a good job of considering what happens under less than good conditions signal wise.
Click to expand...
Click to collapse
It's not so much that it falls off but that the signal for LTE is low....around -112db while CDMA/3G is around -70db (full bards).
I wish there was a way to make "CDMA only" turn on at my house while LTE/4G turning on while I leave it....How do I do this using tasker or a similar app?
Then again, I don't really download anything outside of my house....only time I use data outside my house is for Waze or Snapchat or Instagram or Facebook....and they seem to load fine under 3G...it's not worth the battery drain to use 4G for those applications.

The Galaxy S5 only has one radio so this causes huge problems with use of a device like an Airwave. Since Sprint didn't include WiFi calling in the S5 you have no real solution except to force the S5 in to CDMA only mode. It requires a reboot and is annoying. This is ridiculous by Sprint. I went and got a more advanced phone with two radios (The Galaxy S4) and now have no problems with one radio staying attached to 1x Airwave and LTE. I returned my S5 and am now very happy.

thegame2388 said:
It's not so much that it falls off but that the signal for LTE is low....around -112db while CDMA/3G is around -70db (full bards).
I wish there was a way to make "CDMA only" turn on at my house while LTE/4G turning on while I leave it....How do I do this using tasker or a similar app?
Then again, I don't really download anything outside of my house....only time I use data outside my house is for Waze or Snapchat or Instagram or Facebook....and they seem to load fine under 3G...it's not worth the battery drain to use 4G for those applications.
Click to expand...
Click to collapse
With Tasker or similar you'd want to set it up to switch mobile networks to LTE/CDMA based on your location but like rocket said it's a reboot every time - aka PITA. I just set up a shortcut to Mobile Networks and change if it's a problem. Rebooting often sucks. I don't know why they'd give the S4 two radios and the S5 one. Seems stupid. I'm not sure if you can change to CDMA only via the debugging options - that may not require a reboot. There's a big thread about optimizing LTE bands that has a bunch of info on that.

GorillaPimp said:
With Tasker or similar you'd want to set it up to switch mobile networks to LTE/CDMA based on your location but like rocket said it's a reboot every time - aka PITA. I just set up a shortcut to Mobile Networks and change if it's a problem. Rebooting often sucks. I don't know why they'd give the S4 two radios and the S5 one. Seems stupid. I'm not sure if you can change to CDMA only via the debugging options - that may not require a reboot. There's a big thread about optimizing LTE bands that has a bunch of info on that.
Click to expand...
Click to collapse
Alrighty. Looks like I'll use CDMA at my house for Airave with Wi-Fi for downloading stuff and have CDMA for downloading stuff while I'm beyond the borders of my house.
I don't "download" anything anyway.

You will be UNABLE TO CONNECT TO THE AIRAVE unless your are in "CDMA ONLY".
Go to
settings/network connections/more networks/mobile networks
and change to CDMA .
( Do NOT select CDMA/LTE until you LEAVE the Airave vicinity)
If you are indeed connected to the Airave, you will hear a recording telling you that you are if you call *99.
You will have to re-enable the CDMA/LTE everytime you leave the vicinity of the Airave to get LTE service.
Sprint Tier II Tech informed be of the above, and I have verified it all by personally testing the above.
Now, here is the real question:
What are the EXACT DIFFERENCES between using the "Wi-Fi Calling Feature" with NO Airave - AND- using the Airave WITHOUT using W-Fi Calling.????

tt c6 said:
You will be UNABLE TO CONNECT TO THE AIRAVE unless your are in "CDMA ONLY".
Go to
settings/network connections/more networks/mobile networks
and change to CDMA .
( Do NOT select CDMA/LTE until you LEAVE the Airave vicinity)
If you are indeed connected to the Airave, you will hear a recording telling you that you are if you call *99.
You will have to re-enable the CDMA/LTE everytime you leave the vicinity of the Airave to get LTE service.
Sprint Tier II Tech informed be of the above, and I have verified it all by personally testing the above.
Now, here is the real question:
What are the EXACT DIFFERENCES between using the "Wi-Fi Calling Feature" with NO Airave - AND- using the Airave WITHOUT using W-Fi Calling.????
Click to expand...
Click to collapse
the differnece is the range of the signal / router range of 2.4 ghz/5.0 vs airave 5k to 6k sq ft. and of course haveing a phone made before the s5. any lte+ or sprint spark device will not stay connected to an airave device without network mode selection and crossed fingers. and due to that- wifi calling was born and pushed to the front lines

When you're at home, why not just leave WiFi on for data, and WiFi Calling on for phone calls? That's what I do. I used to use an Airave, but I stopped using my Airave when I got a Galaxy S5 because it has WiFi Calling. (BTW. If you leave WiFi Calling on, your phone will automatically switch to cellular calling when you leave the house.)

[Q] OnePlus One LTE BAND selection?

Is there a way to see and change the LTE BAND that my phone is on? Rogers support aws, 2600, 700. So I was wondering if I could manually change between them. The S5 has that option in the hidden menu, so I'm hoping I could do the same on this one.
Thanks.

The phone choose the band himself, if he don't find bands authorized by your phone company, he can't use them.

tonymtl said:
Is there a way to see and change the LTE BAND that my phone is on? Rogers support aws, 2600, 700. So I was wondering if I could manually change between them. The S5 has that option in the hidden menu, so I'm hoping I could do the same on this one.
Thanks.
Click to expand...
Click to collapse
*#*#46363#*#* > Phone information > Set Preferred Network Type > 'LTE/GSM auto (PRL)'
That's as far as you can get in telling it what network to operate on. It won't let you select specific bands (at least not stock). Mine was set to 'TD-SCDMA, GSM and LTE' out of the box (international version) and since I don't plan to use my phone in China anytime soon, it didn't make sense for the phone to waste resources searching for a TD-SCDMA (China's homebrew 4G) signal. Haven't noticed much improvement to my LTE signal though, still the weakest radio I've seen in a 'flagship' in a while.

Thanks.
I am also on Rogers.
Does that mean when I am on the phone, it will revert to EDGE instead of 3g by using the LTE-edge setting?

I have major issues with reception on this phone.
LTE Works Fine but the 3G/H+ signal is awful, absolute disaster on this phone. It is extremely, extremely weak. And I lose coverage often and over 50% of the times my calls go straight to voicemail because Rogers uses 2g/3g for calling. The phone can't drop back to 2G or 3G in time to receive calls when on LTE
Rly frustrating. Have tried playing with all the settings.

Same issue
hashim71 said:
I have major issues with reception on this phone.
LTE Works Fine but the 3G/H+ signal is awful, absolute disaster on this phone. It is extremely, extremely weak. And I lose coverage often and over 50% of the times my calls go straight to voicemail because Rogers uses 2g/3g for calling. The phone can't drop back to 2G or 3G in time to receive calls when on LTE
Rly frustrating. Have tried playing with all the settings.
Click to expand...
Click to collapse
I'm having issues with 3G H+ too. Dont know its CM issue or not coz I had nice H+ signals on Color OS...
Can't even use internet data. most of the time network drops after using internet for a bit.. Network just suddenly gone and after that it comes back with no internet. Internet comes back online after a while...
Really worried.. and annoyed coz can't seem to find any solve for this. Even Mahdi rom had this issue..

ATT and Mi Mix 3

Hello XDA community,
I have a Mi Mix 3 Palace Edition phone and I am using AT&T for my carrier. The phone came with a Chinese ROM but I flashed it with a Global one. I have been trying to get 4G + LTE to work on the phone but so for all I am able to get is 3G. I have contacted ATT and was told that my account was not setup for it. So ATT's advanced technical support made sure the IME/my account on the phone was LTE enabled. I am still stuck on 3G. I have selected the correct APN for it but I do not connect.
What am I missing?

Preferred network Type?

preferred network LTE.
raven213 said:
Preferred network Type?
Click to expand...
Click to collapse

walkrye said:
preferred network LTE.
Click to expand...
Click to collapse
Did you checked if your apn is correct?

Try selecting 4G network manually. I faced issue like that initially with ATT MVNO. After seleting 4G network manually I am geetting 4G+

In the Settings, go to About Phone, and tap the storage until it brings you to the SIM and WiFi screen. Tap on the Phone Information for the SIM you are using and set that Network Type to UMTS/LTE.
AT&T blocks any device you did not purchase directly through them from using VoLTE and WiFi Calling. 4G is also LTE, so if you see the 4G icon, that is also LTE and 4G+ is also LTE-A.