Database Develop

Looking for a way to use a Captivate on non AT&T US networks

Like the subject says... if someone can point me in the right direction, it would be appreciated. Not at all sure where to start. I can run pretty much whatever Cappy kernel & ROM I want, including different modems. Just wondering what the technical issues & tasks would be. And, of course, I'd need to know which, if any, non AT&T networks would work on the Cappy.

The Captivate will work on T-mobile, but because of the frequencies used by T-mobile u can only get the Edge on their network.
As far as other non att networks, u will just have to search and see what frequencies they use and then compare that to what the Cappy runs on. :thumbup:
Sent from my SGH-I897 using xda premium

dalewest said:
Like the subject says... if someone can point me in the right direction, it would be appreciated. Not at all sure where to start. I can run pretty much whatever Cappy kernel & ROM I want, including different modems. Just wondering what the technical issues & tasks would be. And, of course, I'd need to know which, if any, non AT&T networks would work on the Cappy.
Click to expand...
Click to collapse
The phone must be unlocked, and you can do that for free here: http://forum.xda-developers.com/showthread.php?t=761045
When you SIM unlock it, it can work on any gsm carrier like AT&T, T-Mobile, Vodafone, and most other international carriers
I am running it on T-Mobile but it only gets Edge.

If you perform a sim unlock your can always put it on a mvno like Straight Talk or Red Pocket. You can use HSPA on those instead of slow edge.
Sent from my MB860 using xda app-developers app

4-2ndtwin said:
The Captivate will work on T-mobile, but because of the frequencies used by T-mobile u can only get the Edge on their network.
As far as other non att networks, u will just have to search and see what frequencies they use and then compare that to what the Cappy runs on. :thumbup:
Sent from my SGH-I897 using xda premium
Click to expand...
Click to collapse
It's been awhile since I looked at modem particulars as well as goodies in LBS Test Mode, but IIRC, can't we specify bands and frequencies if need be, if the modem allows?

SnoMan88 said:
If you perform a sim unlock your can always put it on a mvno like Straight Talk or Red Pocket. You can use HSPA on those instead of slow edge.
Sent from my MB860 using xda app-developers app
Click to expand...
Click to collapse
Hmmm... sounds interesting. Have you any experience with MVNOs in the US?

dalewest said:
Hmmm... sounds interesting. Have you any experience with MVNOs in the US?
Click to expand...
Click to collapse
I'm on straight talk with my crappy and its fantastic! Unlimited everything for 45 a month.
Sent from my SGH-I897 using xda app-developers app

Lte won't work

Los Angeles area. I work in the valley paicoma, and there's good lte connection there..I had the iPhone 5 and I would get lte, then I switch to galaxy note 2 and I would also get lte, now I'm using the HTC one and I don't get lte, does anyone knows if there's a fix....thanks in advance
Sent from my HTCONE using xda app-developers app

Doesn't get as in you can't connect?
Sent from my HTCONE using xda app-developers app

I only get 3g...but I should be getting lte....does the prl has to do anything
Sent from my HTCONE using xda app-developers app

I am in the same boat as you. I am in the LA area, and I had good signal in my neighborhood too. However, I can't connect with LTE either, even when I stand next to the tower.
The most weird thing is: I went to the store fore return. When I hit the store, my phone works with LTE outside of the store. I have to go home. Now my phone still has no LTE connection.
It looks like that it is Sprint or HTC software issue. I had no clue what to do though.
youngster1943 said:
I only get 3g...but I should be getting lte....does the prl has to do anything
Sent from my HTCONE using xda app-developers app
Click to expand...
Click to collapse

I had same problem in Atlanta returned one same thing after a couple of pro updates 4g started working just give it a little time it will start to connect after a few updates
Sent from my HTCONE using xda app-developers app

youngster1943 said:
Los Angeles area. I work in the valley paicoma, and there's good lte connection there..I had the iPhone 5 and I would get lte, then I switch to galaxy note 2 and I would also get lte, now I'm using the HTC one and I don't get lte, does anyone knows if there's a fix....thanks in advance
Sent from my HTCONE using xda app-developers app
Click to expand...
Click to collapse
Call Sprint customer care and have them check your UICC ID under settings/about/phone identity. I had exchanged my phone and this number didn't update and caused me to not get 4g when others had it. Its the same number as your SIM ID and is required to match your phone. Seems to be a common issue with setting up the HTC One since is has a SIM Card. They may argue with you that its for International only....tell them I understand that but you have seen others with this problem and that their UICC ID numbers did not match on the account and that its required to make 4g work.

Ok, thanks
Sent from my HTCONE using xda app-developers app

questions go into the questions section
http://forum.xda-developers.com/forumdisplay.php?f=2217

Same here ..I had an exchange ..ever since then 4g hasn't switched on once ...I live in Raleigh / Durham area and while not covered there are plenty of areas with 4g and never seen it once ...I called and asked if it could have anything to do with my exchange and SIM card and they said no ..figured they might of been wrong

firmbiz94 said:
Same here ..I had an exchange ..ever since then 4g hasn't switched on once ...I live in Raleigh / Durham area and while not covered there are plenty of areas with 4g and never seen it once ...I called and asked if it could have anything to do with my exchange and SIM card and they said no ..figured they might of been wrong
Click to expand...
Click to collapse
Yea you have to call them with confidence that you know what the issues are. And in markets they have not launched yet just explain that data is very bad on this phone and you get a lot of dropped calls. Then just ask them to please verify the numbers on your account with the phone....and especially the UICC ID.

I live in LA as well, and I only get LTE in a few different specific areas. Should I call them to make sure all of my numbers are correct? Is there anything else I can do?

slayer69 said:
Yea you have to call them with confidence that you know what the issues are. And in markets they have not launched yet just explain that data is very bad on this phone and you get a lot of dropped calls. Then just ask them to please verify the numbers on your account with the phone....and especially the UICC ID.
Click to expand...
Click to collapse
Thank you sir after jumping through the typical refresh reboot bs the lady finally listened to me and compared my SIM id# and it didn't match ..presto...I now have 15mbs down. Much appreciated

nerv8765 said:
I live in LA as well, and I only get LTE in a few different specific areas. Should I call them to make sure all of my numbers are correct? Is there anything else I can do?
Click to expand...
Click to collapse
PM me your zip code(s) of where you use your phone the most. I will send you a map of those areas and the towers that are upgraded. Not everything is complete there.
firmbiz94 said:
Thank you sir after jumping through the typical refresh reboot bs the lady finally listened to me and compared my SIM id# and it didn't match ..presto...I now have 15mbs down. Much appreciated
Click to expand...
Click to collapse
That's awesome to hear......glad it worked for ya!

90065 zip code
Sent from my HTCONE using xda app-developers app

I called sprint today, and they confirmed
The uicc I'd #, and it was correct on there system. ...what they have me do was to remove the SIM card, turn off the phone, put back the SIM card in, turn on the phone, update profile & prl. After doing this after 5 mins it showed the 4g on my phone, only for about 5sec.....then it went back to 3g....this was a good sign tho* .. I'm going to try it tommarrow at work since over there there's a steady lte connection...hope it works
Sent from my HTCONE using xda app-developers app

youngster1943 said:
I called sprint today, and they confirmed
The uicc I'd #, and it was correct on there system. ...what they have me do was to remove the SIM card, turn off the phone, put back the SIM card in, turn on the phone, update profile & prl. After doing this after 5 mins it showed the 4g on my phone, only for about 5sec.....then it went back to 3g....this was a good sign tho* .. I'm going to try it tommarrow at work since over there there's a steady lte connection...hope it works
Sent from my HTCONE using xda app-developers app
Click to expand...
Click to collapse
Well if not you can always do an Insurance replacement if you have it. There is always a chance you have a bad radio.

slayer69,
Could you please send me the map a zip 90703? Thanks a lot,
slayer69 said:
Well if not you can always do an Insurance replacement if you have it. There is always a chance you have a bad radio.
Click to expand...
Click to collapse

Would love to see a map of 02664. Sprint coverage map says fair lte, im lucky to see any 3g.
Sent from my HTCONE using xda app-developers app

bondseven said:
slayer69,
Could you please send me the map a zip 90703? Thanks a lot,
Click to expand...
Click to collapse
ajd88 said:
Would love to see a map of 02664. Sprint coverage map says fair lte, im lucky to see any 3g.
Sent from my HTCONE using xda app-developers app
Click to expand...
Click to collapse
Sent PM to both of you. :highfive:

Thank you very much
slayer69 said:
Sent PM to both of you. :highfive:
Click to expand...
Click to collapse

Brand new replacement phone, same problem

I got a brand new, out of the box m8 replacement because of data and voice issues. The phone was fine them I took the update and now I'm back to limited data only on wifi and now getting dropped calls. I'm about done work this phone. Maybe the elevate community has some info
Sent from my 831C using xda app-developers app

I haven't seen anything like this over in those forums, I'll keep an eye out though for you.
Sent from M8 on XDA Premium APP

I was hoping that it is the network but sprint says no. Frustrating
Sent from my 831C using xda app-developers app

It appears that I'm not the only one
https://community.sprint.com/baw/mo...ssion?content=/api/core/v2/discussions/155517
Sent from my 831C using xda app-developers app

I'll hop on elevated now to see if anyone has seen anything similar, I'll get back to you.
Sent from M8 on XDA Premium APP
---------- Post added at 11:49 PM ---------- Previous post was at 11:46 PM ----------
Nevermind, I see you have a thread over there already... Hope we can get to the bottom of this. The phone is just awesome and would hate for you to miss out
Sent from M8 on XDA Premium APP

Thank you for trying to help me. As you can see by the link that I shared this looks to be a wide spread problem. I'm not giving up yet, as the only phone I like is htc
Sent from my 831C using xda app-developers app

Might have to switch to cdma only to cure this till sprint gets their updates done. Same problem on my lg g2 on towers that are not fully updated.

I am having a similar issue, though not to the extent that you are having it. In areas where my Galaxy S3 would have strong LTE, my M8 has trouble connecting to LTE, occasionally stays on, and then drops to 3G. I often get the issue where I am on 3G or LTE and it drops to having the X over the bars, showing no signal. I bought through Best Buy, so I am thinking about going in to get it replaced (of course all of the Best Buy's around me don't seem to have it in stock...), but if even a replacement phone isn't working, then maybe it's worth it to just admit defeat and get the plastic trash GS5...

Rammv said:
Might have to switch to cdma only to cure this till sprint gets their updates done. Same problem on my lg g2 on towers that are not fully updated.
Click to expand...
Click to collapse
This is what I have to do at the house. The LTE signal is not strong enough and the phone switches from LTE to 3G every few minutes. This keeps me from getting calls. I changed the network mode to CDMA only at the house under Mobile data. When I level the house I change it back to LTE/CDMA. Now if I could get Tasker to do this for me I would be set.
This issue was the same with the LG G2. That is the reason I did not keep that phone. The Note 3 did not have this issue. That is the phone I had before moving to the M8.

dragonforce11 said:
I am having a similar issue, though not to the extent that you are having it. In areas where my Galaxy S3 would have strong LTE, my M8 has trouble connecting to LTE, occasionally stays on, and then drops to 3G. I often get the issue where I am on 3G or LTE and it drops to having the X over the bars, showing no signal. I bought through Best Buy, so I am thinking about going in to get it replaced (of course all of the Best Buy's around me don't seem to have it in stock...), but if even a replacement phone isn't working, then maybe it's worth it to just admit defeat and get the plastic trash GS5...
Click to expand...
Click to collapse
Let me ask you this. Data issues aside what device do you like better
Sent from my 831C using xda app-developers app

tommason1968 said:
Let me ask you this. Data issues aside what device do you like better
Sent from my 831C using xda app-developers app
Click to expand...
Click to collapse
Compared to GS3 or GS5? Either way, I greatly prefer this one aside from the data issues. I just can't do Samsung's plastic!

I just got my replacement. No more call drops/data drops. Get another replacement?

mattrb said:
I just got my replacement. No more call drops/data drops. Get another replacement?
Click to expand...
Click to collapse
No I opened the dialer and hit ##72786# went to the menu and hit reset. After the phone rebooted I updated my profile. It's working pretty good now.
Sent from my 831C using xda app-developers app

[Q] No LTE on t-mobile Note 4 with AT&T service

I'm using an unlocked note 4 on AT&T(phone was to t mobile when I got it) I can't seem to get LTE does anyone know why or how to get LTE to work? 4G speeds are really slow too.

TheUnknown96 said:
I'm using an unlocked note 4 on AT&T(phone was to t mobile when I got it) I can't seem to get LTE does anyone know why or how to get LTE to work? 4G speeds are really slow too.
Click to expand...
Click to collapse
Are you using service through AT&T or using a AT&T sim through Straight talk or some other subsidiary? I would also look into the apn settings and make sure it is setup properly.

strider5236 said:
Are you using service through AT&T or using a AT&T sim through Straight talk or some other subsidiary? I would also look into the apn settings and make sure it is setup properly.
Click to expand...
Click to collapse
I'm using it with my AT&T service. What should it be (apn settings)

TheUnknown96 said:
I'm using an unlocked note 4 on AT&T(phone was to t mobile when I got it) I can't seem to get LTE does anyone know why or how to get LTE to work? 4G speeds are really slow too.
Click to expand...
Click to collapse
Easy fix. Use the apn from my screen shots below.
The use LTE Discovery to reboot your modem. https://play.google.com/store/apps/details?id=net.simplyadvanced.ltediscovery
Then enjoy your LTE
Sent from my SM-N910T using XDA Free mobile app

Now I can't get service , i followed all the settings you had.

ShrekOpher said:
Easy fix. Use the apn from my screen shots below.
The use LTE Discovery to reboot your modem. https://play.google.com/store/apps/details?id=net.simplyadvanced.ltediscovery
Then enjoy your LTE
Sent from my SM-N910T using XDA Free mobile app
Click to expand...
Click to collapse
OK so I get service now but not data, not even 4G.

TheUnknown96 said:
OK so I get service now but not data, not even 4G.
Click to expand...
Click to collapse
Did you download and use the LTE Discovery App? It needs to reset your modem. Also double check to make sure you entered the apn exactly the same. No phantom spaces, etc. There should be no spaces in the "apn type".
If you still aren't getting data I have one more apn you can try.
Sent from my SM-N910T using XDA Free mobile app

ShrekOpher said:
Did you download and use the LTE Discovery App? It needs to reset your modem. Also double check to make sure you entered the apn exactly the same. No phantom spaces, etc. There should be no spaces in the "apn type".
If you still aren't getting data I have one more apn you can try.
Sent from my SM-N910T using XDA Free mobile app
Click to expand...
Click to collapse
I get 4G only on the "nextgenphone"
LTE discovery doesn't do much but turn off my service and turn it on but still then I only get 4G.

ShrekOpher said:
Did you download and use the LTE Discovery App? It needs to reset your modem. Also double check to make sure you entered the apn exactly the same. No phantom spaces, etc. There should be no spaces in the "apn type".
If you still aren't getting data I have one more apn you can try.
Sent from my SM-N910T using XDA Free mobile app
Click to expand...
Click to collapse
I'm gnna put screenshots, are you able to get lte ?

I have no problem getting LTE on my Note 4 using AT&T'S network.
Screen shots below. I gets decent speeds, not the crazy 40 mbs like some people get, but that is mainly because of the area I live in.
If I am closer to the city I get 35 to 50 mbs down load and 10 to 15 upload.
Sent from my SM-N910T using XDA Free mobile app

I am using a T-Mobile Note 4 on ATT network and have no issues. First of all make sure LTE is enabled on your number/simcard. If not call the customer care and ask them to enable LTE on your line. They will ask your device IMEI number and then enable it. If not u will only get a 4G signal on your phone
If you are having trouble getting data on your device, then use these APN settings

krishelnino said:
I am using a T-Mobile Note 4 on ATT network and have no issues. First of all make sure LTE is enabled on your number/simcard. If not call the customer care and ask them to enable LTE on your line. They will ask your device IMEI number and then enable it. If not u will only get a 4G signal on your phone
If you are having trouble getting data on your device, then use these APN settings
Click to expand...
Click to collapse
I have tried that one already :/
The service rep said this "You are getting LTE on your other lines. Because the device that being use on the line is sync on your account. Since the device that is sync on the line that ends with 1521 is the iPhone 6 Plus. The Note 4 does not receive data service. Because it is registered on the iPhone 6 plus." how legit is that?

If u have a phone on contract on that line, then I use guess it is difficult. Or you can go to an ATT store and say that u lost your sim card. Ask for a new one and say that it is for an Android LTE smartphone.
Sent from my SM-N910T

krishelnino said:
If u have a phone on contract on that line, then I use guess it is difficult. Or you can go to an ATT store and say that u lost your sim card. Ask for a new one and say that it is for an Android LTE smartphone.
Sent from my SM-N910T
Click to expand...
Click to collapse
Just got a new Sim card and still no LTE , I'm starting to give up on this phone

TheUnknown96 said:
Just got a new Sim card and still no LTE , I'm starting to give up on this phone
Click to expand...
Click to collapse
According to this thread, you also have to go to settings, more networks, mobile networks, network mode and change to LTE/WCDMA/GSM.
I just bought a T-Mobile Note 4 to use on AT&T, but I am waiting for an unlock code. I really hope I don't have any issue.

Sher The Love said:
According to this thread, you also have to go to settings, more networks, mobile networks, network mode and change to LTE/WCDMA/GSM.
I just bought a T-Mobile Note 4 to use on AT&T, but I am waiting for an unlock code. I really hope I don't have any issue.
Click to expand...
Click to collapse
Let me know if you get LTE

TheUnknown96 said:
Let me know if you get LTE
Click to expand...
Click to collapse
Will do, but it might be a few days. Guy I bought it from requested the unlock code on Monday and still hasn't received it. Third parties are taking forever too.
Sent from my Nexus 6 using XDA Free mobile app

I know people are successfully getting LTE on T-mobile Note 4 on AT&T service, though I am not sure which APN settings they're using. Looks like there are at least 3 in this thread to try... but it may be a block from AT&T ? I can't imagine that's the case, but I honestly don't know exactly how much control they (AT&T) have over what bands a given sim card can receive if its not matched to the imei on file in their system? I guess a lot?
OFF TOPIC: How much did you guys pay for the unlock codes? (curious)

LTE works great on this phone with AT&T service. Been using it without issue for months.
I don't know why this person is having issues. Only thing I can think is that the Sim card is bad.
Paid $30 for the unlock.
My AT&T account doesn't even show a smart phone. See the screen shot below. As long as it says LTE device then it's not AT&T causes the problem.
Sent from my SM-N910T using XDA Free mobile app

ShrekOpher said:
LTE works great on this phone with AT&T service. Been using it without issue for months.
I don't know why this person is having issues. Only thing I can think is that the Sim card is bad.
Paid $30 for the unlock.
My AT&T account doesn't even show a smart phone. See the screen shot below. As long as it says LTE device then it's not AT&T causes the problem.
Sent from my SM-N910T using XDA Free mobile app
Click to expand...
Click to collapse
I don't know why I'm having issues honestly. I'm trying everything that's thrown at me , I even got a new Sim card yet no LTE. I don't even care if it shows LTE indicator , but it's that my speeds are so slow. 2-5mbps download while on my iPhone 6plus I would get 50mbps download.

AT&T D950 confusion..

First. yep I'm trying to learn what I am doing lol I have only messed with a HTC Sensation a couple years ago. Now with A AT&T Flex D950, from what I read is the Flex1. mine is Ver 4.4.2, Kernel 3.4.0, Build KOT49I.D95020g.. What I have done is fire AT&T, unlocked sim, went back to T-Mobile, and rooted.. I have no LTE but all else seems to be fine.
I started looking in to fixing the LTE issue, de-bloat, see if I can get the other T-Mo functions to work like WIFI calling and so forth, maybe do more. Needs to be good for my daily device.
The more I have read, the more I am confusing myself about what I can get away with. Like what works across flex models, radio drivers that work with what I need and so forth. Need some advice/help to get me on the right track. I would like to stick with my flex so any help would be greatly appreciated..
Please keep in mind I am learning as I go here

You should do some research on what LTE bands in your area that T-Mobile supports. Maybe the at&t model/radio doesn't support those bands.
What Sim unlock method did you [email protected]_XV6700 has some experience with cross Dll and radios. I would point you to his thread..... But its been deleted

Thanks for the post!
I unlocked with the code number. I will look in to dll and radio mods by trying to PM.
I could be wrong but I'm thinking LTE is another problem, unless T-Mobile is not using a band we have in common in Calif. I travel a lot and have not seen LTE anywhere to include Bay Area, So Cal, and the central valley. I could be wrong about that tho. Maybe I'll get lucky and find out about a radio mod that helps. My Samsung's have LTE band options, and this Flex has no such options to be found..
Sent from my LG-D950 using XDA Free mobile app

D950 also has LTE band options through the secret menu.
Use 3845#*950# from dialpad to access the secret menu, got to LTE only menu and you have the bands there
Sent from my LG-D950 using XDA Free mobile app

I use the "Network" app from the playstore to switch bands. The reason I asked is because I unlocked my sprint branded g flex to use with cricket, and the sprint radio does not have the LTE bands for at&t/cricket. But H+ works just as well in my are as LTE.
Here is the supported model bands, but not sure of usable bands in your area:
http://m.gsmarena.com/lg_g_flex-5806.php#

vivebatu said:
D950 also has LTE band options through the secret menu.
Use 3845#*950# from dialpad to access the secret menu, got to LTE only menu and you have the bands there
Sent from my LG-D950 using XDA Free mobile app
Click to expand...
Click to collapse
That's not working on mine,well it works just shows nul.. I went into build.prop file last night, changed att to open. I now have LTE with 39mbps down speed ? thinking I need to go back in that file and change any "att" to open or tmo? Was also wondering if I change model # to tmo flex # would that open up stuff on network like wifi calling?? I don't want to go too far with the build.prop file lol I know if I screw up that file I'll have to wipe and start over, if not brick this thing..
Sent from my LG-D950 using XDA Free mobile app

LTE is working now, went in to build.prop file and changed att to open. That opened up bands on it's own. Seems that's what had it locked to att band's only. Do ya know what else I can get away with modifying build.prop?
Sent from my LG-D950 using XDA Free mobile app

Supertacomonkeyexplosion said:
You should do some research on what LTE bands in your area that T-Mobile supports. Maybe the at&t model/radio doesn't support those bands.
What Sim unlock method did you [email protected]_XV6700 has some experience with cross Dll and radios. I would point you to his thread..... But its been deleted
Click to expand...
Click to collapse
Ohh, the att flex has bands 2,4,5,17..Tmo using bands 2,4 for lte
Sent from my LG-D950 using XDA Free mobile app

jsp001 said:
LTE is working now, went in to build.prop file and changed att to open. That opened up bands on it's own. Seems that's what had it locked to att band's only. Do ya know what else I can get away with modifying build.prop?
Sent from my LG-D950 using XDA Free mobile app
Click to expand...
Click to collapse
Everything? Lol. Happy modding!

LOL thanks, I'll be researching it. Just don't want to brick it lol
Sent from my LG-D950 using XDA Free mobile app

jsp001 said:
LOL thanks, I'll be researching it. Just don't want to brick it lol
Sent from my LG-D950 using XDA Free mobile app
Click to expand...
Click to collapse
Make a nandroid backup, backup your EFS partition. Save it on your computer, and you can save your phone from most bricks. There is a couple of band mods on the g flex 2 section of XDA that use "shortcut master" from the play store, check it out.
Also check out xposed, its awesome.

Will do
Sent from my LG-D950 using XDA Free mobile app

There's a thread in the AT&T G2 section where a T-Mobile rom was ported to the AT&T variant:http://forum.xda-developers.com/att-g2/development/rom-t-mobile-4-4-2-stock-d80120e-wi-fi-t2819587
I only have satellite Internet service, so I haven't downloaded it to try and dig through to figure out how he did it.
Looking at porting guides, it looks easy except that the WiFi calling is in the Framework folder, or so they say. Maybe someone here who knows what they're doing would be willing to embark on this journey for those of us who could use it.