LTE in Boston down? - Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot

nevermind, data settings somehow got changed to global. changed default to LTE/ CMDA and it works fine now

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LTE just stopped working?

I'm on PA 3.65 with the .27 radio installed. LTE's been working great for me on T-Mobile since it came to my city back in early June. Just today I was messing with Tasker and my network starting going haywire. For some reason, I can no longer get an LTE connection. I've done a factory reset, re-installed my ROM and installed a different radio (was on .33 before), but as soon as I turn on LTE (even if it's LTE/GSM/WCDMA) I lose a connection. It still shows that I have a cell signal, but no data. I'm on T-Mobile's fast.tmobile.com APN, and if I switch back to GSM/WCDMA it works fine getting H+ speeds. Does anyone know of anything else I can try at this point?
APN is fast.t-mobile.com
I made the same mistake a few months ago
lopezk38 said:
APN is fast.t-mobile.com
I made the same mistake a few months ago
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Wow thanks. I guess fast.tmobile.com works with HSPA+ but not LTE, though I could have sworn I was on that previously and it worked.

VZW 4.4.2 (XT1060) on T-Mobile

Verizon is at it again. When using a T-Mobile SIM in my XT1060 with 4.4.2, I'm stuck on EDGE where I'd previously get HSPA+. The APN setup has been fixed, so it no longer disappears, but it doesn't really matter if you're stuck on 2G.
4.2.2
Worked perfectly with HSPA+ and LTE
4.4
Broke APN setup
Gimped HSPA+ speeds
4.4.2
Fixed APN setup
EDGE only data
EDIT: EDGE is forced in Global mode; select LTE/GSM/UMTS and UMTS only to restore HSPA+; wait for the modem to cycle and allow the SIM to register on the network
I still have issues with HSPA+ speeds on my phone. It could be a localized issue, but I'll have to do further testing.
So, it's officially useless.
All have voice/SMS, though some had issues with voice on T-Mo's LTE.
You are the second person to report this. Could you try a factory wipe or something? I have no idea why it would be EDGE only.
I am curious what would have changed. I did compare the built in APN list between 4.4 and 4.4.2 and noticed the built in APN for T-Mobile US changed from fast.t-mobile.com on 4.4 to epc.t-mobile.com in 4.4.2 which is an older APN. Have you tried manually adding back the fast.t-mobile.com APN?
landale said:
I am curious what would have changed. I did compare the built in APN list between 4.4 and 4.4.2 and noticed the built in APN for T-Mobile US changed from fast.t-mobile.com on 4.4 to epc.t-mobile.com in 4.4.2 which is an older APN. Have you tried manually adding back the fast.t-mobile.com APN?
Click to expand...
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Only the unlocked phones automatically add APNs. With the Verizon XT1060, I have to manually enter the APNs, and I only use fast.t-mobile.com.
On top of the EDGE only limitation, it occasionally times out completely, so that there's no throughput up or down through the modem. It seems Verizon has completely gimped data on other carriers. I disabled the Verizon APN and APN Permissions apps, but there's something deeper that's causing this. It could be in the kernel, which wouldn't be a good thing at all.
The kicker though is (excerpt from FCC's C Block Rules):
(e) Handset locking prohibited. No licensee may disable features on handsets it provides to customers, to the extent such features are compliant with the licensee's standards pursuant to paragraph (b)of this section, nor configure handsets it provides to prohibit use of such handsets on other providers' networks.
The key words are disable features and prohibit. Technically, they aren't prohibiting access of the handset on T-Mobile's network, but they are limiting it in a way.
I got H+ with 4.4.2 on my VZW Dev X. I had to edit the APN Type setting to be default,mms,supl. The rest of the settings matched my T-Mobile Galaxy S4 LTE's APN settings. Under mobile network settings, I also have selected LTE/GSM/UMTS.
I am at the office where it is serviced by an internal antenna system, so I don't have T-Mobile LTE, and I don't think its setup for 1900Mhz UMTS, but there is a refarmed T-Mobile antenna and LTE outside.
Ok, now it switched to just bars. And back to Edge. Not sure if this is due to the internal antenna system or the update.
Voice calls (in/out) work, SMS send/receive works, MMS send/receive works, web browser works, Hangouts works.
KidJoe said:
I got H+ with 4.4.2 on my VZW Dev X. I had to edit the APN Type setting to be default,mms,supl. The rest of the settings matched my T-Mobile Galaxy S4 LTE's APN settings. Under mobile network settings, I also have selected LTE/GSM/UMTS.
I am at the office where it is serviced by an internal antenna system, so I don't have T-Mobile LTE, and I don't think its setup for 1900Mhz UMTS, but there is a refarmed T-Mobile antenna and LTE outside.
Ok, now it switched to just bars. And back to Edge. Not sure if this is due to the internal antenna system or the update.
Voice calls (in/out) work, SMS send/receive works, MMS send/receive works, web browser works, Hangouts works.
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Click to collapse
Keep us posted on how it progresses throughout the day.
easyxtarget said:
Keep us posted on how it progresses throughout the day.
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Click to collapse
I wont be able to do anything until at least tonight when I get home.
KidJoe said:
I got H+ with 4.4.2 on my VZW Dev X. I had to edit the APN Type setting to be default,mms,supl. The rest of the settings matched my T-Mobile Galaxy S4 LTE's APN settings. Under mobile network settings, I also have selected LTE/GSM/UMTS.
I am at the office where it is serviced by an internal antenna system, so I don't have T-Mobile LTE, and I don't think its setup for 1900Mhz UMTS, but there is a refarmed T-Mobile antenna and LTE outside.
Ok, now it switched to just bars. And back to Edge. Not sure if this is due to the internal antenna system or the update.
Voice calls (in/out) work, SMS send/receive works, MMS send/receive works, web browser works, Hangouts works.
Click to expand...
Click to collapse
This makes sense as the change in the default APN was the only obvious change I saw between 4.4 and 4.4.2. It's at least encouraging that you got HSPA+ to work by changing the APN. Have the others with problems tried changing or adding a new APN to match the one from the previous build? For reference here is the old and new APN information copied directly from the APN list on the Verizon Moto X.
XT1060 with 4.4 built in T-Mobile APN:
<apn auth="NONE" mmsc="http://mms.msg.eng.t-mobile.com/mms/wapenc" password="none" server="*" user="none" apn="fast.t-mobile.com" mnc="260" mcc="310" carrier="T-Mobile US" protocol="IPV4V6" mtusize="1440"/>
XT1060 with 4.4.2 built in T-Mobile APN:
<apn auth="NONE" mmsc="http://mms.msg.eng.t-mobile.com/mms/wapenc" password="none" server="*" user="none" apn="epc.tmobile.com" mnc="260" mcc="310" carrier="T-Mobile US" preloaded="true" type="default,mms,supl,hipri,fota" protocol="IP" mtusize="1440"/>
Mine is still on EDGE, and doesn't even bother going to HSPA+ even though it's in the area. Even without the APN setup, it would automatically connect to HSPA+. The speeds just wouldn't be right until you put in the APN settings.
Speedtest reported 0.01Mbps down and 0.02Mbps up, so it's definitely 2G and not a reporting bug.
Jason.DROID said:
Mine is still on EDGE, and doesn't even bother going to HSPA+ even though it's in the area. Even without the APN setup, it would automatically connect to HSPA+. The speeds just wouldn't be right until you put in the APN settings.
Speedtest reported 0.01Mbps down and 0.02Mbps up, so it's definitely 2G and not a reporting bug.
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What do you mean without the APN setup? Just confused as to whether you are describing before on 4.4 and now on 4.4.2. I think everyone is in agreement that the APN settings for T-Mobile on 4.4.2 are wrong which is definitely part if not all of the problem since it's the most obvious change from 4.4. Have you tried adding a new APN using the settings used in the 4.4 build and selecting that as the APN to use?
landale said:
What do you mean without the APN setup? Just confused as to whether you are describing before on 4.4 and now on 4.4.2. I think everyone is in agreement that the APN settings for T-Mobile on 4.4.2 are wrong which is definitely part if not all of the problem since it's the most obvious change from 4.4. Have you tried adding a new APN using the settings used in the 4.4 build and selecting that as the APN to use?
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As I told you before, the Verizon Moto X DOES NOT automatically add APNs. It never did on 4.2.2, 4.4, or 4.4.2. Only VZWINTERNET is ever automatically added.
I also said that I'm using fast.t-mobile.com.
It's not the APN setup. HSPA+ is disabled.
Jason.DROID said:
As I told you before, the Verizon Moto X DOES NOT automatically add APNs. It never did on 4.2.2, 4.4, or 4.4.2. Only VZWINTERNET is ever automatically added.
I also said that I'm using fast.t-mobile.com.
It's not the APN setup. HSPA+ is disabled.
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Click to collapse
I know what you said but you are referring to what shows on the APN list in Mobile Settings. Just because an APN doesn't show in that list doesn't mean it isn't preloaded into the phone but set to not be viewable. There is a huge list of APN's preloaded onto the Moto X for just about every major GSM carrier in the world and these are used when a SIM used when on that carrier (file pulled directly from my Moto X is attached in the zip file to this post). If the APN preloaded is wrong it will cause problems with data working. My question on you using the APN from 4.4 wasn't just the APN address of fast.t-mobile.com but also the remaining settings which matter as well such as protocol and type. I am just trying to help from my experience dealing with these sorts of issues and the fact that another user got HSPA+ to work earlier today is what made me think there might be more to it.
Anyway I should have access to a friends AT&T Nano SIM in the next day or two and since it uses the same band of HSPA+ as T-Mobile does on the Moto X I can check on that too.
landale said:
I know what you said but you are referring to what shows on the APN list in Mobile Settings. Just because an APN doesn't show in that list doesn't mean it isn't preloaded into the phone but set to not be viewable. There is a huge list of APN's preloaded onto the Moto X for just about every major GSM carrier in the world and these are used when a SIM used when on that carrier (file pulled directly from my Moto X is attached in the zip file to this post). If the APN preloaded is wrong it will cause problems with data working. My question on you using the APN from 4.4 wasn't just the APN address of fast.t-mobile.com but also the remaining settings which matter as well such as protocol and type. I am just trying to help from my experience dealing with these sorts of issues and the fact that another user got HSPA+ to work earlier today is what made me think there might be more to it.
Anyway I should have access to a friends AT&T Nano SIM in the next day or two and since it uses the same band of HSPA+ as T-Mobile does on the Moto X I can check on that too.
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I know they're included in the build, but I've ALWAYS had to manually add the APN to get things working properly; the included APNs are usually for carrier unlocked retail phones like the XT1053. In 4.4, manually added APNs would usually disappear, but I found a workaround to make it stay. Still, HSPA+ was artificially limited (0.05-0.20Mbps down, 1.0Mbps up) just like when the APN isn't setup. Now on 4.4.2, it will only connect to EDGE, regardless.
Looking further, even when using fast.t-mobile.com, the phone forces epc.tmobile.com and EDGE only. I'm not rooted, so there's nothing I can do about it.
Jason.DROID said:
I know they're included in the build, but I've ALWAYS had to manually add the APN to get things working properly; the included APNs are usually for carrier unlocked retail phones like the XT1053. In 4.4, manually added APNs would usually disappear, but I found a workaround to make it stay. Still, HSPA+ was artificially limited (0.05-0.20Mbps down, 1.0Mbps up) just like when the APN isn't setup. Now on 4.4.2, it will only connect to EDGE, regardless.
Looking further, even when using fast.t-mobile.com, the phone forces epc.tmobile.com and EDGE only. I'm not rooted, so there's nothing I can do about it.
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Okay that is bizarre. I just remembered one of my coworkers had a iphone 5s on t-mobile and just borrowed her SIM. I am also on a stock, non-rooted Verizon Moto X running 4.4.2 and it connected to HSPA+ immediately. I didn't even change the APN at all. I even ran a speed test and got 4.33MB down and 1.84MB up. Here is a screen shot of the status attached. Not sure why it worked for me and not for you.
Could be time for an FDR, but before that, I'm gonna try a different area of service.
I have another T-Mobile SIM that I can register as well if all else fails.
Jason.DROID said:
Could be time for an FDR, but before that, I'm gonna try a different area of service.
I have another T-Mobile SIM that I can register as well if all else fails.
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Yeah I wish I could tell you that I did something special to get HSPA+ to work, I literally did nothing other then take out my Verizon one and put in the T-Mobile one, didn't even do a restart or change it off of Global (although I did shortly after switch it to LTE/GSM/UMTS to test that as well). The weird thing is it didn't connect to LTE at all when I know on 4.4 I could get it to connect it just wouldn't let you make calls. To be fair I didn't try much to try and get LTE to work aside from adding a new APN with the so called corrected T-Mobile LTE APN settings as my coworker wanted her SIM back. Maybe others can play around with that more.
landale said:
Yeah I wish I could tell you that I did something special to get HSPA+ to work, I literally did nothing other then take out my Verizon one and put in the T-Mobile one, didn't even do a restart or change it off of Global (although I did shortly after switch it to LTE/GSM/UMTS to test that as well). The weird thing is it didn't connect to LTE at all when I know on 4.4 I could get it to connect it just wouldn't let you make calls. To be fair I didn't try much to try and get LTE to work aside from adding a new APN with the so called corrected T-Mobile LTE APN settings as my coworker wanted her SIM back. Maybe others can play around with that more.
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I even went into fastboot and erased the modemst1 and modemst2 again to have it reregister everything. Still nothing. Unless T-Mobile removed HSPA+ from the area around my home recently, I'd say it's the phone.
I'll keep playing with it. I'd really like the 4.4.2 flash files though just to be sure something didn't happen in the OTA update.
Jason.DROID said:
I even went into fastboot and erased the modemst1 and modemst2 again to have it reregister everything. Still nothing. Unless T-Mobile removed HSPA+ from the area around my home recently, I'd say it's the phone.
I'll keep playing with it. I'd really like the 4.4.2 flash files though just to be sure something didn't happen in the OTA update.
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In Mobile Network settings what do you have selected under Select Network (the last option)? Do you have it on Automatic or UMTS only? Also try downloading this application https://play.google.com/store/apps/details?id=com.tapbase.LTEswitcher
Then once you have it try setting the preferred network to WCDMA only or GSM Auto and see if that helps as well.
landale said:
In Mobile Network settings what do you have selected under Select Network (the last option)? Do you have it on Automatic or UMTS only? Also try downloading this application https://play.google.com/store/apps/details?id=com.tapbase.LTEswitcher
Then once you have it try setting the preferred network to WCDMA only or GSM Auto and see if that helps as well.
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Click to collapse
Already tried all of that. It only connects to EDGE. I used the hidden phone settings menu to access the more advanced settings, and still no dice.
KidJoe said:
I got H+ with 4.4.2 on my VZW Dev X. I had to edit the APN Type setting to be default,mms,supl. The rest of the settings matched my T-Mobile Galaxy S4 LTE's APN settings. Under mobile network settings, I also have selected LTE/GSM/UMTS.
I am at the office where it is serviced by an internal antenna system, so I don't have T-Mobile LTE, and I don't think its setup for 1900Mhz UMTS, but there is a refarmed T-Mobile antenna and LTE outside.
Ok, now it switched to just bars. And back to Edge. Not sure if this is due to the internal antenna system or the update.
Voice calls (in/out) work, SMS send/receive works, MMS send/receive works, web browser works, Hangouts works.
Click to expand...
Click to collapse
Just as a follow up.. At home, in an area where T-Mobile has HSPA on 1900mhz, I do get H+ and even LTE (band 4) (LTE speed test screen shot -> http://mark.cdmaforums.com/X-STUFF/2014-02-27 01.47.07.png ).
When On LTE, the "bug" of making a call drops signal/service still happens.
When I keep it on UMTS and have an H+ connection, it works fine. And the connection is stable at home.
I'm attaching some shots.
And I should mention, the SIM I'm using is a T-Mobile Nano SIM that I use with an adapter in my T-Mobile Galaxy S3. I had it switched to Nano so I could also put it in my iPhone if/when needed (its a work thing).

Not able to change to 4g LTE

Hey guys, I have a bit of problem with my network settings. I've just received a mail from my telecom that says that I'll be able to use 4g now (finally!). But I can't change my settings to support that for some reason... I'm able to chose GSM/WCDMA auto, WCDMA and GSM but not LTE to support 4g.
What can I do about this?

s7 edge is having trouble with TMobile's LTE mobile data

So I recently purchased s7 edge g935fd from Taiwan. The phone was working fine there in Taiwan. When I came back to the States, however, the phone seems to have trouble connecting TMobile's LTE mobile data. The LTE goes on and off , no matter where I am. The phone still says that it is connected to LTE even when the data is not loading. I tried to reset the APN setting but no avail. I also tried that sim card on my old ASUS Zenphone 2 and the LTE worked fine so it is probably not the sim card's fault. The weird thing is that I can still call, text, and even use 3g network, it's only LTE that is not working properly. Anyone got a solution to this?
check your phone lte band...
*#27663368378#
- UE Settings & Info
- Settings
- Protocol
- NAS
- Network Control
- Band Selection
- LTE Band Selection

Guide to get 4G LTE Total Wireless ( Verizon ) with 3G issue

First you need to make sure your APN settings are correct.
With my service I had to change that APN to tracphone.vzwentp and that got my 3G service.
After that Dial *#*#4636#*#* for phone testing
Go into * Phone information *
Then down to * Set preferred network type * and set it to * LTE/CDMA auto (PRL) *
This helped give me 4G LTE
And or you need to change the preferred network under cellular network settings to LTE/CDMA
First post so let me know if I need to change anything thanks
So apparently when I changed the band over to USA Band it gave me LTE. The calling worked for around two days and then just stopped working but I still had LTE.
Once I changed the Band back over to Cellular it gave me calling and txt back. I can switch it back and forth to get either 3G or 4G.
I'm hoping that with the new Nougat update it will fix this issue but for now if your calling and LTE work for you on USA Band more power too you.
If the Nougat update doesn't fix this issue I'm going back to Straight Talk AT&T where I had 4G LTE, Talk, and TXT
Motorola Moto G4 XT1625
Total Wireless (Verizon Network)
Android 6.0.1
What 4g speeds are you getting? Hear Verizon mvno are capped at 5mbps
brownd7380 said:
What 4g speeds are you getting? Hear Verizon mvno are capped at 5mbps
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I only get 5.4mbps down and 2.3mbps up so far.
I'm headed to California in two weeks where I wanted to test it.
Before when I was a Verizon customer I got 65mbps down so I'll see if it's different there too.
It's possible it is throttled. I have Net10 and using the CDMA option because Verizon has awesome signal where I live compared to att. Att did have higher speed rates on LTE but 5mpbs is more than enough for what I need and what anyone should need.
All Verizon MVNOs are throttled to ~5Mbps down, ~2Mbps up. Only Verizon Prepaid proper and Verizon Postpaid are unthrottled.
Hi there, your guide helped me get on LTE. Thank you!
United States band option is located in the 3 dots in the upper right hand corner.
So why in the world is it that these MVNOs recognize this phone straight away using the verizon network, but through VZW I can only get 3G? This is infuriating! I set up several of these for friends on prepaid networks and they all worked straight away with 4G. Finally added our son to our VZW plan so he could use his phone as an actual phone and it's stuck in 3G hell.
I'm on an MNVO using Verizon's network and it defaulted to 3G. I had to do this to get on 4G. I've lost the ability to make phone calls though, so I'm using hangouts for that function.
I can confirm that regular calling does not function on 4G LTE so like the OP, I am having to switch back and forth on Automatic and United States which is aggrivating.
I hope this helps someone:
I have LineageOS 14 nightly installed on this phone. I was going to return it because I was tired of dealing with the switch to make calls.
I figured out that my baseband wasn't the latest, so I figured one final nuclear option of flashing the stock back on to the device would potentially help this.
After a long bout with a soft bricked phone, I managed to get the phone to flash back to stock Amazon adz and then take an OTA. My baseband changed from x45R to x62R.
I then reflashed TWRP and LineageOS 14. It still didn't work but I played around with the settings and managed to get it working. You have to set the Radio Band to Automatic and then you'll get LTE data and CDMA voice. Preferred network type in Mobile network settings is LTE / CDMA. FYI The settings may reset after a reboot.

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