[Q] HELP! T-Mobile SIM can use LTE but not tether, WHY? - Verizon Samsung Galaxy S 4

Hi, I have a problem with using my phone to tether. I use a Galaxy S4 Verizon Unlocked and use the T-Mobile nano sim unlimited 4G LTE data.
This is my mobile info :
+ Model number : sch i545
+ android verson 4.3
+ baseband : i545VRUEMK2
+ built number : JSS15J.I545VRUMK2
+ rooted: yes
I can call, text, use the internet, but I can't tether! I have fast.t-mobile.com as the apn, and have tried epc.t-mobile.com as the apn also.
Here is where I get confused: When I set it on GSM, I can tether, but I only get up to 3G/H+ speeds, which max around .5mbps for me (I live in Portland). When I set it on LTE/CDMA, or Global, I get 4G LTE speeds, which gets up to 3-5mbps, but I'm not able to tether. I have tried numerous tethering apps, I really don't think it's the app; I've tried tethering to different computers also, and the phone itself seems to be the problem. When I factory reset, tethering on "Global" and "LTE/CDMA" works, but in the course of downloading apps and setting up LTE and my phone in general, tethering stops working. I was messing around with the settings yesterday, and DID get tethering to work both on "Global" and "LTE/CDMA", but then it stopped working again today. The error message when I can't tether is "cannot connect to DNS server".
I've searched forums all day, and have not found an answer.. Please help! Someone suggested finding a app. to change the network settings to GSM/LTE, but I couldn't find how to do that.

I also have an I545 on T-Mobile, 1gb/mo @ lte speed. Tethering works fine for me but can't afford the data it gobbles.
To set the preferred network, go to google play and download Advanced Signal Status. Run it. Look at the info then scroll to the bottom and click Additional Info, then Device Information. Look at all that other info then scroll down to Set preferred network type. LTE/GSM auto (PRL) works for me.
It might be that I'm rooted and the rom I'm using too.

Yesss it works
THANK YOU!! I downloaded the Advanced Signal Status app, then set it to LTE/GSM auto (PRL), setup a new APN "epc.t-mobile.com", set that as the active apn, then made it inactive and selected "fast.t-mobile.com" to be the active apn again, and VOILA! it works!
bsliv said:
I also have an I545 on T-Mobile, 1gb/mo @ lte speed. Tethering works fine for me but can't afford the data it gobbles.
To set the preferred network, go to google play and download Advanced Signal Status. Run it. Look at the info then scroll to the bottom and click Additional Info, then Device Information. Look at all that other info then scroll down to Set preferred network type. LTE/GSM auto (PRL) works for me.
It might be that I'm rooted and the rom I'm using too.
Click to expand...
Click to collapse

Related

Enable 3G

I have the UK Razr, at first i was able to use 3G then after 3 days i can only get EDGE.
I hard reset and still i cant get 3G.
Ideas?
I saw in the widget named Mobile date toggle, try to add it and turn it on?
Also check in Setting -> Wireless & network settings -> Mobile networks -> Select network and select 3G.
3G
dragonthl said:
I saw in the widget named Mobile date toggle, try to add it and turn it on?
Also check in Setting -> Wireless & network settings -> Mobile networks -> Select network and select 3G.
Click to expand...
Click to collapse
When i do a network search I only get the 2G networks. If i select 3G the signal drops.
It seems i cant enable UMTS. I m always on EDGE / 2g network.
If I use the sim in another mobile it connects normally to 3G/UMTS.
Any help how to enable it on the RAZR?
It was working 2 days ago and suddenly it stopped.
Any idea how to switch between radio bands? from the phone info i can only see USA band and nothing about Europe or other bands?
This is causing my disabled 3G, I cant connect to any 3G network (voice and data).
Help is needed please
Fix the problem? Same thing happens to me yesterday. All the same. I would appreciate help.
Sorry for my English, I am using the google translator from Spanish.
Same problem here. Anyone find a fix?
Yesterday I wrote email to Motorola, I have asked several questions ... but still have not given me solution.
I returned the device to the store after trying everything. I even changed the GSM/SIM operator and the problem wasn't solved, i can only use EDGE/2G, whenever i switch to 3G the signal dies.
fadishehadeh said:
I returned the device to the store after trying everything. I even changed the GSM/SIM operator and the problem wasn't solved, i can only use EDGE/2G, whenever i switch to 3G the signal dies.
Click to expand...
Click to collapse
Thank you.
The new phone works good in
3G?
OK
In the dialer
*#*#46336#*#*
-Phone information
chose : GSM/CDMA Auto
BE CAREFULL HERE
medo18 said:
OK
In the dialer
*#*#46336#*
-Phone information
chose : GSM/CDMA Auto
BE CAREFULL HERE
Click to expand...
Click to collapse
For mine, the testing menu is *#*#4636#*#*
No luck yet with what you suggested, but I'm trying different combos of APNs and messing with the testing menu to see if I can get UMTS.
---------- Post added at 06:02 PM ---------- Previous post was at 05:27 PM ----------
I've fixed my particular issue. I did an upgrade to the iPhone 4S (US AT&T), and am selling the iPhone to pay for my xt910. Apparently, when they did the upgrade, they inadvertently removed my data plan. They fixed the issue and I'm now getting full UMTS on wap.cingular.
Hopefully that will help some of you other guys having the issue. I thought it was the phone itself, but it turned out to be my plan.

[Q] VZW Google Edition ROM 5.9 NO LTE

Hi, I am currently using the VZW Google Edition ROM 5.9 and have service and WiFi. My problem is it only connects to 3G, and not 4G. As advised, I have not gone into network settings, but I did open Phone Info and see that it is set to LTE/CDMA auto. Any reason I am not getting LTE?
Just a thought, but maybe you could check the APN settings and see if they are different than what you should have.
Heatshiver said:
Just a thought, but maybe you could check the APN settings and see if they are different than what you should have.
Click to expand...
Click to collapse
Thanks for the response. I am kind of new to this, where do I check the APN settings and how do I know what I should have? Thank you.
Do you have LTE coverage in your area? If so, can you use another phone/friend to double check if LTE is working? I only ask because we had LTE go out where we live.
Gir brings up a good point, I don't have 4G where I am (and probably won't for years!), but that may be simplest as long as they use the same network (although many carriers piggyback off the same network).
The APN settings should be under "Settings > More networks > Mobile networks > Access Point Names". On a stock ROM you have to get to the actual file through ADB, you should be able to see it if you have an aftermarket ROM. The settings for the APN will depend upon Verizon. Here is a good post with APN settings for Verizon, the first part is for Android.
Coverage could always be the issue as that has plagued me more times than not.
From the ROM thread:
Go into mobile network settings.
Verify that your CDMA subscription is set to RUIM and not NV.
For good measure go into the rest of the options and set it to CDMA/LTE, automatic, and allow data roaming.
Back out to your home screen.
Then go into Phone Info app.
Scroll to bottom and tap radio off.
Open the drop down list and select CDMA/LTE auto (PRL).
Turn the radio back on.
Reboot.
Upon reboot open Phone Info again.
Verify it is set to CDMA/LTE auto (PRL)
** you should have full service now * *
** if not * *
In Phone_Info(*#*#4636#*#*):
Try CDMA auto (PRL)
Then try CDMA/GSM/LTE
If those still don't work then your nv_data needs reset. The only way to do that is in the hidden menu dialer codes in a touchwiz-stocktype rom
If you destroy your nv_data and cannot get data back via the above you need to (stop screwing with your network settings)flash back to a TW ROM, enable hidden menu, and do a NV data reset via dialer code. After doing that make sure your phone is not in modem mode under diag dialer code. Until I update this section Google is your friend. And it is available information, verified. Your lack of searching skills doesn't mean pester my inbox...
I do have LTE in my area, as I had 4G before I loaded the rom. I do not have an APN menu under mobile networks. Do you think it could help to dial *228 option 2 to update roaming? Or possibly a new 4G sim card?
Anything about updating I would research first and be wary of... A new SIM card could help, but I'm assuming it is not the problem. Did you make a NANDROID before you changed ROMs? You could then go back and see it you still got 4G to make it evident if your SIM card is the problem.
FIXED
Just needed a new sim card. Thanks guys. I appear to be receiving signal bars with my LTE on the GPE rom as well.

[Q] 4G connection issue

I am unable to get reliable data on my CM11 rom on my razr maxx. I have checked all the network setting with a friend's whos is working and there are two differences:
1. His APN is grayed out
2. I do not get a "pass" on HTTP client test when I go into #*#*4636*#*#
When I fire up the phone it connects at 3G. It then takes about 10 minutes to go to LTE. When it does, it is DOG slow.
I also have the same issue with CM11 roms on my Incredible 4G LTE. It was thinking it was the sim, but it works fine on a stock rom. I have seen other folks with similar issues, but no resolution.
evolwun said:
I am unable to get reliable data on my CM11 rom on my razr maxx. I have checked all the network setting with a friend's whos is working and there are two differences:
1. His APN is grayed out
2. I do not get a "pass" on HTTP client test when I go into #*#*4636*#*#
When I fire up the phone it connects at 3G. It then takes about 10 minutes to go to LTE. When it does, it is DOG slow.
I also have the same issue with CM11 roms on my Incredible 4G LTE. It was thinking it was the sim, but it works fine on a stock rom. I have seen other folks with similar issues, but no resolution.
Click to expand...
Click to collapse
check jakedhs07 cyanogenmod thread about restoring apns
zero66 said:
check jakedhs07 cyanogenmod thread about restoring apns
Click to expand...
Click to collapse
Brilliant! Fixed.
I did have to change the permissions on the APN app before moving it. After restoring the APN's from stock, I did have to go in an select the appropriate one.
Follow-Up
After about a day of use, this stopped working. This morning, I was unable to connect via LTE. If I chose an appropriate APN, it would not stay selected (if I went back into APN's after making a change it would be set to something else).
What I did to fix this was to use APN Backup and Restore to delete all the APN's and then restore ONLY the APN's from the stock ROM. So far, it is working.
evolwun said:
Follow-Up
After about a day of use, this stopped working. This morning, I was unable to connect via LTE. If I chose an appropriate APN, it would not stay selected (if I went back into APN's after making a change it would be set to something else).
What I did to fix this was to use APN Backup and Restore to delete all the APN's and then restore ONLY the APN's from the stock ROM. So far, it is working.
Click to expand...
Click to collapse
More Follow-Up
It looks like the APN's get jacked when I use WIFI. Any thoughts?
Probable Fix - By ME! (CDMA ONLY - XT912)
This is what I did to fix the issue. It doesn't just fix the LTE, but the entire connection overall. (Atleast for me, please leave a follow up if you try this).
---
First things first, goto your APN settings (System Settings > Mobile Networks > Access Point Names)
1) Delete all existing APNs. (tap the APN to enter configuration, open menu and delete the APN.
2) Create a new APN.
Enter the following information:
Code:
[U][B]Name[/B][/U]
Verizon Internet
[U][B]APN[/B][/U]
VZWINTERNET
[U][B]Proxy[/B][/U]
Not set
[U][B]Port[/B][/U]
Not set
[U][B]Username[/B][/U]
Not set
[U][B]Password[/B][/U]
Not set
[U][B]Server[/B][/U]
Not set
[U][B]MMSC[/B][/U]
http://mms.vtext.com/servlets/mms
[U][B]MMS proxy[/B][/U]
Not set
[U][B]MMS port[/B][/U]
Not set
[U][B]MCC[/B][/U]
311
[U][B]MNC[/B][/U]
480
[U][B]Authentication type[/B][/U]
Not set
[U][B]APN Type[/B][/U] (NOTE: Must be exact)
default,mms,dun,stdhipri,supl
[U][B]APN Protocol[/B][/U] (NOTE: If doesn't change immediately, try again.)
IPv4/IPv6
[U][B]APN roaming protocol[/B][/U]
IPv4
[U][B]Bearer[/B][/U] (NOTE: This will prevent you from connecting to the Extended Network. If you have issues, change to unspecified.)
LTE
[U][B]MVNO type[/B][/U]
None
---
I tried this and it worked. Basically it is stealing the stock APN.
vazersecurity said:
This is what I did to fix the issue. It doesn't just fix the LTE, but the entire connection overall. (Atleast for me, please leave a follow up if you try this).
---
First things first, goto your APN settings (System Settings > Mobile Networks > Access Point Names)
1) Delete all existing APNs. (tap the APN to enter configuration, open menu and delete the APN.
2) Create a new APN.
Enter the following information:
Code:
[U][B]Name[/B][/U]
Verizon Internet
[U][B]APN[/B][/U]
VZWINTERNET
[U][B]Proxy[/B][/U]
Not set
[U][B]Port[/B][/U]
Not set
[U][B]Username[/B][/U]
Not set
[U][B]Password[/B][/U]
Not set
[U][B]Server[/B][/U]
Not set
[U][B]MMSC[/B][/U]
http://mms.vtext.com/servlets/mms
[U][B]MMS proxy[/B][/U]
Not set
[U][B]MMS port[/B][/U]
Not set
[U][B]MCC[/B][/U]
311
[U][B]MNC[/B][/U]
480
[U][B]Authentication type[/B][/U]
Not set
[U][B]APN Type[/B][/U] (NOTE: Must be exact)
default,mms,dun,stdhipri,supl
[U][B]APN Protocol[/B][/U] (NOTE: If doesn't change immediately, try again.)
IPv4/IPv6
[U][B]APN roaming protocol[/B][/U]
IPv4
[U][B]Bearer[/B][/U]
LTE
[U][B]MVNO type[/B][/U]
None
---
I tried this and it worked. Basically it is stealing the stock APN.
Click to expand...
Click to collapse
I just tried this in an attempt to resolve my LTE connection issues and APN issues with CM11. Rebooted the phone and it quickly connected to 4G LTE. Will let you know if it doesn't work. Verizon XT912 user in California.
ZexGX said:
I just tried this in an attempt to resolve my LTE connection issues and APN issues with CM11. Rebooted the phone and it quickly connected to 4G LTE. Will let you know if it doesn't work. Verizon XT912 user in California.
Click to expand...
Click to collapse
I have been having issues connecting to the LTE network. Right now, there is no solution. I have tried almost everything. I have even tired flashing back to stock with RSD Lite. I made sure that it wasn't the SIM card (i have had issues with the SIM before on a different phone) by putting it in a different/newer 4G LTE device and it connected to 4G LTE with no problem. My RAZR will connect to 4G LTE when I am in certain areas, but the connection isn't a lasting one. It will quickly switch back to 3G. I contacted Verizon Wireless and even took it into a store. They told me that it's the upgrades that they're doing to the network. While the customer service representative said that my model of the RAZR was just outdated and is probably experiencing hardware issues. My solution used to work, but now it's something else. (Hardware or Network related). My suggestion would be to contact Verizon about the issue (revert to stock first; if you need a link as to how to do that, PM me and I will help point you in the right direction.)
===========================================================================================​EDIT:
I am currently testing a solution. Will report back.
vazersecurity said:
EDIT:
I am currently testing a solution. Will report back.
Click to expand...
Click to collapse
Have you tried APN Backup and Restore on CM 11? There are some other flashable fixes as well that I have seen. APN Backup and Restore has worked a few times but I have to do it after every restart.
desdecardo said:
Have you tried APN Backup and Restore on CM 11? There are some other flashable fixes as well that I have seen. APN Backup and Restore has worked a few times but I have to do it after every restart.
Click to expand...
Click to collapse
I haven't. BUT I'm running on my stock ROM right now. And it's having trouble connecting. I have to restart just to get 4G. And it lasts for a few seconds and then (in the *#*#4636#*#* testing menu) the signal strength turns all weird (I'll provide the number of dBm later when it comes back). Then goes straight to 3G and no matter how hard I try, it won't switch back to 4G unless I restart. I think it could have something to do with the radio (well obviously it is). But something serious that we can't fix unless we have an unlocked bootloader. If frickin' Motorola would let us unlock the device, then we'd be golden.

Anyone using this phone with AT&T in the US?

I love this phone....there, I said it. But it's driving me crazy.
I bought it from a Chinese retailer, who shipped it with X821 firmware, but the box states that it's an X820. I doubt there is any difference in the hardware.
I would have left everything as it was, but I can't seem to make phone calls (don't have a data plan yet...yeah, I know....) with anything other than 2G, and that is about to go extinct. When I set it to WCDMA, it shows a UMTS connection, with no carrier designation, but the tower is the same one I connect to with 2G. The phone does sometimes show an AT&T 3G connection in the status bar, but I can't make calls, even though I have full signal. When I place the same SIM in my old HTC Inspire, the same monitoring app shows "UMTS - AT&T HSDPA+" and works just fine.
I'm at my wits end. I have rooted, installed TeamSpain recovery, replaced the firmware with the X829 and even tinkered with the frequency configurations through DFS Studio (which did a lot of complaining, and I'm still not sure if the changes stuck 100%). I also played with APN settings and tried the SIM in different slots, both alone, and with another SIM. And after all of that, still no progress in getting this phone to use a 3G or 4G connection to make calls. If I don't set it to "GSM only", no phone calls in or out. I'm essentially right under a tower, so signal shouldn't be an issue.
If anyone is using the same provider in the US, and is not having these kinds of issues, I'd really appreciate hearing what firmware you are using, and/or what you did to get things working.
I am using it on x820 with official stock 0.17s firmware, and did a dirty flash to cuoco92's 17s firmware. Everything works including HD voice calls, and full LTE.
xterminater07 said:
I am using it on x820 with official stock 0.17s firmware, and did a dirty flash to cuoco92's 17s firmware. Everything works including HD voice calls, and full LTE.
Click to expand...
Click to collapse
I tried this, as well as the Remix ROM. In fact, I think I've tried just about everything, without success. At one point, I had one of the apps indicating a 4G connection, but the phone diagnostics showed GSM (2G). Even the apps aren't all sure what to make of what's going on with the connections reported by this phone.
Currently on the cuoco92 v35 ROM. When WCDMA is enabled, I see simply a good UMTS connection , sans carrier name, in the "Network Cell Info Lite" app, and no ability to make calls. I also often (but not always) see the "AT&T 3G" sign. 4G or LTE never shows at all, even though the diagnostics show that the phone is communicating with an LTE transmitter, when preferred network is set to "unknown". It won't even let me set things like "LTE only".
Any chance you could set your phone to WCDMA and see what the "Network Cell Info Lite" app shows you? Anyone else with this phone on AT&T?
BTW, I am now using a data plan, which I thought might make a difference. It doesn't. EDGE data only for me . New SIM card is on the way, but my hopes aren't high.
Is it possible for a Chinese seller to have borked the phone so thoroughly with their x821 ROM (it's an x820 marked phone), that it keeps any subsequent radios from flashing properly? I don't know how/why it would work for some and not others.
Starting to really dislike this "phone"......it's more of tablet at this point.
Thanks.
I think APN is not set for AT&T
try this:
"Main steps
To use data services on our network with a non-AT&T device, you may need to program the data settings. The sections below provide the correct settings and steps for programming based on your device type and operating system.
.
Access the Settings menu.
Locate and select Wireless & Networks or More Networks.
Select Mobile Networks.
Select Access Point Names.
Locate and select the option to add a new APN. This is usually accessed by a + symbol on the screen or by tapping the menu button.
Program each field using the settings below.
Save the changes to return to the APNs menu and select the new APN.
Name ATT Phone
APN phone
Proxy Not set
Port Not set
Username Not set
Password Not set
Server Not set
MMSC
MMS proxy
MMS port
MCC 310
MNC 410
Authentication Type None
APN type default
APN protocol IPv4
Bearer Unspecified
Note: If you are unable to program your device following the steps above, refer to your user manual or contact the manufacturer for assistance."
Cadet_C said:
I think APN is not set for AT&T
Click to expand...
Click to collapse
Thanks, but I wish it were so simple. I have tried this, and other APN settings. None work to get this phone to be usable on anything other than 2G.
I just received and activated the replacement SIM. Still no improvement. While typing this, I have Network Cell Info Lite app running, and with the Set Preferred Network Type showing "Unknown" in the phone's diagnostic screen, It will switch randomly between "EDGE AT&T" (which works fine) and "UMTS -" (which is useless). Both have strong signals. For a split second before it switched to "UMTS-", the app showed "GPRS AT&T", but only for a split second before it kicks over to "UMTS-".
I wish someone using this "phone" on AT&T in the US, would run this app to compare notes. It may be that that the phone works fine on a full implementation of LTE (i.e. in locations where AT&T have already deprecated 2G) but not in other areas. Still, that doesn't seem to explain why this phone seems unable to register on the same 3G network, used easily by my other phone, with the very same APN settings and SIM.
You would have to call att and check if they turned our phone on to use lte. If your phone is not "registered" as an LTE capable phone it wouldn't be able to pick it up. This phone has all the bands needed for AT&T because I am using it now. All LTE work straight out the box, and i'm on the latest 19s cn rom
xterminater07 said:
You would have to call att and check if they turned our phone on to use lte. If your phone is not "registered" as an LTE capable phone it wouldn't be able to pick it up. This phone has all the bands needed for AT&T because I am using it now. All LTE work straight out the box, and i'm on the latest 19s cn rom
Click to expand...
Click to collapse
I'm a bit confused. Is this what you did to achieve proper function of this device? I.e. calling AT&T and getting them to do this for you? My conversation with their tech person didn't seem to bear fruit in this regard.
Also, which slot do you have the SIM card in? I've used the stock 17s and now on cuoco92 v35 ROM. There definitely seems to be a difference in how the network settings behave, based on the location of the SIM. At one point, after selecting BAND 6 (when it would let me), the phone showed a constant "AT&T 3G" connection, but it was useless. No calls and no data.

Need help with MMS, sending & receiving

Hello everyone. I jsut got my Le Max 2 yesterday and noticed a very annoying issue. I can't send or receive MMS messages....that is unless I manually change my network from 4G to 3G. It's very strange that the phone doesn't do this itself.
I've entered in all the correct APN settings (this was needed in order for me to get 4G speeds. The downside is that it only stays on 4G unless i tell it to switch.
Some useful info:
I am on the stock rom 5.8.018S (stable)
I went into the menu via dialer *#*#4636#*#* and have selected LTE/GSM
I 'm on the Fido network in Canada (same as Rogers)
Will flashing another, newer rom solve my problem? Any help or advice would be appreciated!
I am with Freedom Mobile and do not have 4G. In the phone settings, dual SIM networks, network mode, even I set to 4G priority, I can get 3G without problem . In the *#*#4636#*#*, it was set to unknown by default. If you set it to LTE/GSM, I don't see how you can get 3G.
Amowagou said:
In the *#*#4636#*#*, it was set to unknown by default. If you set it to LTE/GSM, I don't see how you can get 3G.
Click to expand...
Click to collapse
If I don't set it to that I won't get LTE. I can also leave it at unknown but it'll stay on 4g at all times. Point is, unless I manually go and select 3G priority and have the phone stay in 3G I won't be able to send/receive MMS.
I'm also having issues with the LED. It only works for text messages but doesn't light up for Hangouts or email (emails don't push either). As you can see lots of annoying issues! I'm not sure it's worth keeping the phone unless flashing a rom will solve this things.

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