i337m using LTE on AT&T? - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

I have an i337m from fido in canada.
I travel to the US frequently and use an AT&T Sim when in the US. I have unlocked my device and bought it specifically for the ability to use LTE in Canada and the US but my unlocked i337m won't connect to LTE on AT&Ts network. Im guessing there's there's some block in the firmware preventing it from connecting when on ATTs network? Would the answer be to load ATT firmware or radio files onto my i337m?
Any advice appericiated.

Have you checked the apn?
Sent from my SAMSUNG-SGH-I337 using xda app-developers app

Thanks I will check the APN.
I assumed that my att Sim would automatically set the APN but maybe not since my device doesn't have att firmware.
I will try setting up the att APN info and see if that resolves my issue.
Sent from my SGH-I337M using xda app-developers app

seiks said:
Thanks I will check the APN.
I assumed that my att Sim would automatically set the APN but maybe not since my device doesn't have att firmware.
I will try setting up the att APN info and see if that resolves my issue.
Sent from my SGH-I337M using xda app-developers app
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Did you ever got ATT LTE working? I got a i337m also and can't get ATT LTE to connect

Related

is i9505 just an unbootlocked i337?

is there any difference between the two besides ours being boot locked and network locked?
what I'm really asking is if I get the i9505 can I use it on att and get all the compatible network bands?
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
I don't think you'll get LTE with it though.
Sent from my Nexus 4 using xda premium
soraxd said:
is there any difference between the two besides ours being boot locked and network locked?
what I'm really asking is if I get the i9505 can I use it on att and get all the compatible network bands?
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
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Click to collapse
I've been trying to look into this, and I'm pretty šure that the i9505 doesn't have AT&T LTE band support =[ Good news is that the Tmobile variant will have support for AT&T LTE bands without a locked bootloader. I'm going to just buy an unlocked Tmobile variant and use it on AT&T to sidestep the whole bootloader garbage.

[Q] I9505 no LTE?

Hello,
I bought an unlocked I9505 version of the Galaxy S4 and live in the US and my carrier is AT&T.
I know I have LTE service in my area since I came from iPhone and other phones in my household has LTE service in their phone's but mine?
My I9505 only shows and toggles between H and H+ but not the 4G and LTE subscript text next to the signal bars.
I've checked to make sure that under Mobile Networks that LTE/GSM/WCDMA is chosen and APN* settings are correct.
Anyone else having the same experience? Is there something wrong with the phone?
It has LTE, I get 4G on mine
Sent from my GT-I9505 using xda app-developers app
What could be possibly wrong with mine?
exnokiafanboy said:
What could be possibly wrong with mine?
Click to expand...
Click to collapse
I flashed the latest ROM (MDN) and first I did no have LTE a well, but after I did factory reset - it appeared .
Sent from my GT-I9505 using xda premium
did your simcard support LTE ??
MsElise said:
did your simcard support LTE ??
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Click to collapse
I think - it does not support. We do not have LTE service here yet. But I have a choice LTE/GSM/WCDMA (auto connect)
Sent from my GT-I9505 using xda premium
MsElise said:
did your simcard support LTE ??
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Click to collapse
Yes, I also called AT&T support to make sure I'm provisioned to have LTE and they said yes.
In germany we have a problem too.
interrupts the LTE network and you have no more contact?
It seems as if there were in all i9505's the problem. I turned it off, because LTE is too expensive here.
Gesendet von meinem GT-I9505
myname70 said:
I flashed the latest ROM (MDN) and first I did no have LTE a well, but after I did factory reset - it appeared .
Sent from my GT-I9505 using xda premium
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Click to collapse
I've already did a factory reset once but nothing happened. It's still not showing LTE.
exnokiafanboy said:
Hello,
I bought an unlocked I9505 version of the Galaxy S4 and live in the US and my carrier is AT&T.
I know I have LTE service in my area since I came from iPhone and other phones in my household has LTE service in their phone's but mine?
My I9505 only shows and toggles between H and H+ but not the 4G and LTE subscript text next to the signal bars.
I've checked to make sure that under Mobile Networks that LTE/GSM/WCDMA is chosen and APN* settings are correct.
Anyone else having the same experience? Is there something wrong with the phone?
Click to expand...
Click to collapse
As far as I know of, the GT-I9505 does not support AT&T LTE bands. This would explain why you can't get any LTE signal with it.
Sent from my GT-I9505 using xda premium
mathieulh said:
As far as I know of, the GT-I9505 does not support AT&T LTE bands. This would explain why you can't get any LTE signal with it.
Sent from my GT-I9505 using xda premium
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Awww, that's a bummer.
I am having the exact same issue, I have an i9505 and do not get the option of LTE on the list only GSM/WCDMA, GSM Only or WCDMA Only.
I had an LTE S3 and obviously that had an option for it in the network settings.
If the 4G was not compatible in my area then i would assume it would not be able to find a signal and not just disallow the selection in the settings.
Im in Australia btw and bought it unlocked from a company that shipped from Hong Kong.
chriswazza said:
I am having the exact same issue, I have an i9505 and do not get the option of LTE on the list only GSM/WCDMA, GSM Only or WCDMA Only.
I had an LTE S3 and obviously that had an option for it in the network settings.
If the 4G was not compatible in my area then i would assume it would not be able to find a signal and not just disallow the selection in the settings.
Im in Australia btw and bought it unlocked from a company that shipped from Hong Kong.
Click to expand...
Click to collapse
You need a LTE compatible USIM to be able to list the "4G" option otherwise it does not appear. It's kinda stupid but it's the way it works.
Sent from my GT-I9505 using xda premium
mathieulh said:
You need a LTE compatible USIM to be able to list the "4G" option otherwise it does not appear. It's kinda stupid but it's the way it works.
Sent from my GT-I9505 using xda premium
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Click to collapse
Ok, this is the sim i was using in my LTE S3 and that worked fine. Should this not work?
chriswazza said:
Ok, this is the sim i was using in my LTE S3 and that worked fine. Should this not work?
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Click to collapse
Hum... That's odd, maybe your CSC does not allow LTE.
Sent from my GT-I9505 using xda premium
mathieulh said:
Hum... That's odd, maybe your CSC does not allow LTE.
Sent from my GT-I9505 using xda premium
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Ok. What would that mean? I was assured by the company I bought it from that it would work.
My csc is i9505zzhamde if that helps
I've contacted AT&T tech support and found out the reason why I can't get LTE. Different techs will give you different answers so I kept prying each
tech that I've encountered with to give me some sensible answer.
One tech said that the 9'th and 10th digit of the ATT sim should be 2 and 5. I checked my old iPhone's nano sim and it was 2 and 5. The replacement sim that I've received when I got my S4 was 2 and 9. So I went to an AT&T store to have my sim replaced, ofcourse they ignored what I told them that I'd like to have a sim with the 9th and 10th digit to be 2 and 5. ATT rep said that their new sim should work with LTE (which I thought should be) regardless of the 9th and 10th digit. Then, nothing still H+. Oh well...
So went home and tried chatting with the rep again and found out this:
LTE service is not provisioned in my plan since AT&T's system can't recognize my phone's IMEI hence they can't add it to their system.
So does that mean that GT-I9505 can have 4g LTE with AT&T's as long as they can register my IMEI on their network?
but w/e the sooner I can get over that I9505 isn't compatible with AT&T 's LTE the better.
Hm... When I was with Hybrid ROM MDN and modem MDN without ANY CSC, it shows me LTE/GSM/WCDMA (auto connect). But now I flashed Modified MDM ROM with MDM modem with BTU CSC and the LTE disappeared..... I have only GSM/WCDMA option.... (just to remind that My GSM Operator does not provide LTE)
What do you think? maybe the LTE/GSM/WCDMA (auto connect) in the menu depends on th chosen CSC...
I think they are telling you a bunch of lies. The I9505 does not have the LTE bands for AT&T and that's really all there is to it.
Sent from my SGH-I337M using xda premium

[Q] AT&T S4 working on Telus LTE

Hi everyone,
I recently got an amazon.COM gift card, but I live in Canada. I want to purchase a Galaxy S4 but I don't know which movel to get. From my understanding, the model Telus Canada offers is the i337m, so naturally I looked at the sgh-i337 offered by AT&T. Will I get LTE network using the AT&T S4 on Telus?
Some of my research:
The SGH-I337 works on the following bands:
LTE: Bands 1/4/7/17; HSPA+/UMTS: 850/1900/2100MHz; GSM: 850/900/1800/1900MHz
(source: Samsung website (can't post external links =[ ))
And according to this page: wikipedia/List_of_LTE_networks#Americas (again, no external links), it would seem that Telus uses band 4 for its LTE networks. Can anyone confirm if this will allow the SGH-I9337 to have LTE network on Telus?
Thanks!
It works if you have it unlocked.
Sent from my Nexus 7 using Tapatalk 4
Amazon item
ma678 said:
It works if you have it unlocked.
Sent from my Nexus 7 using Tapatalk 4
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Click to collapse
Thanks for the quick reply!
Here's what I was thinking of buying: amazon.com/gp/product/B00CRO6QFA/ref=s9_simh_gw_p107_d0_i1?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=center-2&pf_rd_r=1APEBNR0F4V4YMKB72BA&pf_rd_t=101&pf_rd_p=1389517282&pf_rd_i=507846
I would try to find a tmobile, or international I9505 so you don't have to worry about a locked boot loader
Sent from my Nexus 10
mymusicathome said:
I would try to find a tmobile, or international I9505 so you don't have to worry about a locked boot loader
Sent from my Nexus 10
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But the I9505 won't have LTE network on Telus, right?
Update
Hi everyone,
I thought I'd write a follow-up on this thread for anyone that might stumble on it later on.
I did receive my unlocked SGH-I337 (not SGH-I337M) and it did not immediately work on Telus' LTE network (it didn't even work on 3G/EDGE either). But I did not stop there. I set the APN setting as mentionned on Telus' website and that didn't work either. At that point I was a bit desperate and I called Telus to make sure it wasn't something on their end, it wasn't. At this point I was a little panicking, I thought I would have to re-sell my phone.
So I rooted my phone using this technique: http://forum.xda-developers.com/showthread.php?t=2387577 (I had the MF3 firmware version).
Then I did this "hack" to enable more LTE bands: http://forum.xda-developers.com/showthread.php?t=2291589 (*#7284# didn't work for me, but I found the solution elsewhere, I had to use *#0808* instead).
Then using *#2263# I chose "[6] LTE/WCDMA Mode Only" and voilà, I was using Telus' LTE network!
Credit goes to authors in the posts mentioned above.
Hopefully this might help someone else at some point! Thanks everyone.
You need to unlock your phone to enable lte hack, while root is not necessary.
Congrats on its working now.
Sent from my Nexus 7 using Tapatalk 4
ma678 said:
You need to unlock your phone to enable lte hack, while root is not necessary.
Congrats on its working now.
Sent from my Nexus 7 using Tapatalk 4
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Click to collapse
Thanks!
I thought you had to be rooted due to this post: http://forum.xda-developers.com/showpost.php?p=42069163&postcount=71, thanks for the update, though.
Anyhow, it's good to be rooted
I haven't rooted my phone yet, but I have enabled LTE after unlocking my phone., and I use it on Wind mobile network.
Sent from my Nexus 4 using Tapatalk 4

Please help urgent note 3 unlocked

I just bought a note 3 on tmobile.i went home and unlocked it. When I put my Verizon sin card it keeps saying searching and nd not recognizing it. Please I need help I have no phone at the moment. I'm sorry if this is the wrong section but I'm getting very frustrated.
Have you tried manually putting in the apn's?
If you're phone doesn't automatically give you the apn settings, do a Google search for apn settings for the carrier you want. ie: apn settings AT&T, etc..
Sent from my SM-N900W8 using Tapatalk 2
(Someone correct me if I'm wrong but) isn't Verizon a CDMA network and the sim is for getting LTE?
Sent from my SAMSUNG-SM-N900A using Tapatalk
tyiphius said:
(Someone correct me if I'm wrong but) isn't Verizon a CDMA network and the sim is for getting LTE?
Sent from my SAMSUNG-SM-N900A using Tapatalk
Click to expand...
Click to collapse
You are correct.... kinda hard to use a GSM phone on a CDMA network lol. Unless Verizon switched over but I doubt it.
OP did you research this before buying to make sure it would work?
Maybe we are wrong here but I think your out of luck
Sent from my SM-N900W8 using xda premium

X727 version cannot get on LTE/4G on Fido Canada

Hi everyone,
I've got the X727 version from their US store and I've been using it on Bell Mobility in Canada for the past few weeks and it worked fine. I am able to get on LTE/4G. However, today I switched to Fido today and now I cannot get LTE/4G signal. I am stuck on 3G/H+.
Does anyone know why? To my understanding the X727 US version supports LTE Bands 1/2/3/4/5/7/8/12/17/29/30/38 and Fido and Bell basically have the exact same band/frequency when it comes to LTE.
http://www.androidcentral.com/everything-you-need-know-about-4g-lte-canada
Many thanks in advance!
Do you have correct APN settings for Fido?
Sent from my LEX727 using Tapatalk
phidung3721 said:
Do you have correct APN settings for Fido?
Sent from my LEX727 using Tapatalk
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I should. I am current getting 3G on "internet.fido.ca"
I am not getting any data on "Fido-core-appl1.apn"
wrong apn
you should use their LTE apn - ltemobile.apn
The two you mentioned are not LTE.
phidung3721 said:
Do you have correct APN settings for Fido?
Sent from my LEX727 using Tapatalk
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Click to collapse
crukkh said:
you should use their LTE apn - ltemobile.apn
The two you mentioned are not LTE.
Click to expand...
Click to collapse
So I set it up and I am still getting 3G. Are you on Rogers7Fido LTE?
I'm using ltemobile.apn on Rogers in NCR and get 4G/LTE almost all the time...
Sent from my SM-G935W8 using Tapatalk
I am also on fido and get LTE. I'm sure its your APN settings.
Try to use 4g in another phone. If it isn't working, let's contact with your cellular telephone service provider...

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