Develop Bugs

Unlocked the T-mobile phone to work on AT&T, no data usage. HELP!

I got a Samsung Galaxy SII T989 new, for free, off of my uncle who gets phones for promotional purposes. It's a T-mobile phone, and I'm on AT&T. I paid for an unlock code and successfully unlocked my phone for use on AT&T. I can text, call, and use WiFi, but can't get the data to work. (I also can't send or receive MMS messages, not sure if it's related. HELP!

beastin32794 said:
I got a Samsung Galaxy SII T989 new, for free, off of my uncle who gets phones for promotional purposes. It's a T-mobile phone, and I'm on AT&T. I paid for an unlock code and successfully unlocked my phone for use on AT&T. I can text, call, and use WiFi, but can't get the data to work. (I also can't send or receive MMS messages, not sure if it's related.(YES THEY ARE RELATED) HELP!
Click to expand...
Click to collapse
couple things have you asked on the AT&T forum and have you done a google search on how to get your Tmobile phone to work on AT&T?
next is have you changed or rather added the new apn? if any of this is an issue for you I would say your best bet is to trade the phone on craigslist for someone with the skyrocket.
since the two phones are interchangeable as far as roms go I would suspect with a little more digging you will find your answer... check here

Go to settings... more settings...mobile networks.... access point names... press menu ... New apn
Name : ATT
APN: wap.cingular
MMSC: http://mmsc.cingular.com
MMS Proxy: wireless.cingular.com
MMS Port:80
Apn type: default,supl,mms
Everything else leave blank or default
-dark

darkamikaze said:
Go to settings... more settings...mobile networks.... access point names... press menu ... New apn
Name : ATT
APN: wap.cingular
MMSC: http://mmsc.cingular.com
MMS Proxy: wireless.cingular.com
MMS Port:80
Apn type: default,supl,mms
Everything else leave blank or default
-dark
Click to expand...
Click to collapse
^ +1 apn should do the trick, pretty typical for unlocked phones to not have the apns on the sim. Manual programming is going to be fun if you are new to android

Thank you!
Thanks so much! I did that, turned on packet data, and it seems to be working now. Again, thank you so much for your help, muchly appreciated!

beastin32794 said:
Thanks so much! I did that, turned on packet data, and it seems to be working now. Again, thank you so much for your help, muchly appreciated!
Click to expand...
Click to collapse
Glad I could help
Sent from my SGH-T989 using Tapatalk 2

speed?
beastin32794,
What speed are you getting on AT&T? Edge, 3G, or 4G?

mlawrence85704 said:
beastin32794,
What speed are you getting on AT&T? Edge, 3G, or 4G?
Click to expand...
Click to collapse
Thou will only get up to At&t 3g
Sent from my Galaxy Nexus using xda premium

The best i ever got was 8 down and 1 up on speeds using att unfortunately no 4g only 3g but works great .
Sent from my SGH-T989 using xda premium

I have the same issue. I have tired doing what was mentioned but for some reason I still can't send or receive picture texts. Also I can't get onto the internet with out Wi-Fi. Please help because I am going crazy trying to figure this out. THANKS!

Name .At&t
APN wap.cingular.com
Username [email protected] GPRS.COM
mmsc http://mmsc.cingular.com
Mmsproxy wireless.cingular.com
Mmsport 80
310
410
Apn type default,supl,mms
Works for me ever time Gs2 tmo and using the same ones on my nexus 4 . data/mms works perfect on At&t .
Sent from my Nexus 4 using Xparent Skyblue Tapatalk 2

[Q] Travelling to India, will my US S3 work?

I have the T-mobile branded (T-999) Galaxy S3. It is rooted and I am running a custom rom (Frosty Jellybean). I got the unlock code from T-mobile because I told them I will be travelling abroad (to India). So my question is: Can I just get a prepaid sim card from a mobile carrier in India and stick it in my phone and then enter the unlock code and will it work just like normal? Does anyone know if this phone is compatible with 3G or 4G networks in India for internet access? Do I need to be running any specific "international" version of a ROM, or will my custom rom work? Any advice would be appreciated (or if you can direct me to where to find such info). And before you ask, yes I did attempt to search the forums, but I got the following message..."Search is temporarily unavailable. We apologize for the inconvenience."
Thanks in advance.

asanghamd said:
I have the T-mobile branded (T-999) Galaxy S3. It is rooted and I am running a custom rom (Frosty Jellybean). I got the unlock code from T-mobile because I told them I will be travelling abroad (to India). So my question is: Can I just get a prepaid sim card from a mobile carrier in India and stick it in my phone and then enter the unlock code and will it work just like normal? Does anyone know if this phone is compatible with 3G or 4G networks in India for internet access? Do I need to be running any specific "international" version of a ROM, or will my custom rom work? Any advice would be appreciated (or if you can direct me to where to find such info). And before you ask, yes I did attempt to search the forums, but I got the following message..."Search is temporarily unavailable. We apologize for the inconvenience."
Thanks in advance.
Click to expand...
Click to collapse
You're fine. If you want to use their 3/4g Network, make sure to grab APN setting

x1tyme said:
You're fine. If you want to use their 3/4g Network, make sure to grab APN setting
Click to expand...
Click to collapse
How would one do that? He prolly does not know.....

bobolinko said:
How would one do that? He prolly does not know.....
Click to expand...
Click to collapse
Im sure if he doesn't know, he will do a quick search of the forums and find out just like you or I would
Sent from my SGH-T999 using xda premium

asanghamd said:
I have the T-mobile branded (T-999) Galaxy S3. It is rooted and I am running a custom rom (Frosty Jellybean). I got the unlock code from T-mobile because I told them I will be travelling abroad (to India). So my question is: Can I just get a prepaid sim card from a mobile carrier in India and stick it in my phone and then enter the unlock code and will it work just like normal? Does anyone know if this phone is compatible with 3G or 4G networks in India for internet access? Do I need to be running any specific "international" version of a ROM, or will my custom rom work? Any advice would be appreciated (or if you can direct me to where to find such info). And before you ask, yes I did attempt to search the forums, but I got the following message..."Search is temporarily unavailable. We apologize for the inconvenience."
Thanks in advance.
Click to expand...
Click to collapse
Use the code they have you on a TouchWiz ROM. Not sure if it works with a variant of AOSP. If you have a T-999, then you cannot install an international ROM - it still doesn't change the fact that your phone is a T999.
Look up the frequency bands for India and find out if this phone will work with it 4G bands there.

Ok, thanks for the info so far.
Originally Posted by bobolinko
How would one do that? He prolly does not know.....
Click to expand...
Click to collapse
Bobolinko, you are right that I don't know anything about APN settings. I did do a search and found how to access APN settings by going to Settings > more settings > mobile networks > access point names. Currently all I see there is the T-mobile US entry, I'm assuming you are saying that I need to hit the menu button and "+ New APN", then enter whatever info the mobile carrier in India gives me right?
Look up the frequency bands for India and find out if this phone will work with it 4G bands there.
Click to expand...
Click to collapse
I found India uses 900/1800 bands and 2100 for 3G. Minimal 4G coverage there currently. Specs for S3 show that it is compatible with all these frequencies so I assume I'm good to go if I can figure out the APN stuff.

asanghamd said:
Ok, thanks for the info so far.
Bobolinko, you are right that I don't know anything about APN settings. I did do a search and found how to access APN settings by going to Settings > more settings > mobile networks > access point names. Currently all I see there is the T-mobile US entry, I'm assuming you are saying that I need to hit the menu button and "+ New APN", then enter whatever info the mobile carrier in India gives me right?
I found India uses 900/1800 bands and 2100 for 3G. Minimal 4G coverage there currently. Specs for S3 show that it is compatible with all these frequencies so I assume I'm good to go if I can figure out the APN stuff.
Click to expand...
Click to collapse
Here's the APN setting for one major carrier in India "Airtel"
- Press Main
- Select Settings
- Select Wireless and Networks
- Select Mobile Networks
- Select Access point Names
- Delete all APN's in this section.
- Press Menu
- Press New APN
- Enter the follow settings one for General Data . The other for MMS
Name: IN - Airtel Web
APN: airtelgprs.com
Proxy:
Port:
Username:
Password:
Server:
MMSC:
MMS Proxy:
MMS Port:
MMS Protocol: WAP 2.0
MCC:
MNC:
Authentication Type: PAP
APN Type: default, supl
PXT Messaging MMS:
Name: IN - Airtel MMS
APN: airtelmms.com
Proxy:
Port:
Username:
Password:
Server:
MMSC: http://100.1.201.171:10021/mmsc
MMS Proxy: 100.1.201.172
MMS Port: 8799
MMS Protocol: WAP 2.0
MCC:
MNC:
Authentication Type: PAP
APN Type: mms
Google death is the answer for most questions . Have fun...love Mumbai

I gave a thanks because I will be in India in May. I build record centers. Nice info to start with. Hope some others chime in. OP. Thanks for bringing this up.

I loved Airtel when I was in Nigeria.
Sent from my Galaxy Nexus using xda premium

I suggest you go complete stock . I send my old s2 with custom rom to my country nepal and later they have to pay to swith to stock rom for some continuous error becoz my brother dont know how to do it. So be in stock .

When I travel to Europe every year all I do is just put local provider sim card and works every time. All bi do is my phone needs to be unlock and never mess with apn. I use various phones like photon, blackberry, dumb phones, my touch etc.
Sent from my SGH-T999 using xda app-developers app

x1tyme said:
Here's the APN setting for one major carrier in India "Airtel"...
Click to expand...
Click to collapse
Thank you so much for posting this info. Airtel is the provider I was planning on using.

MCC field must be 3 digits
x1tyme said:
Here's the APN setting for one major carrier in India "Airtel"
- Press Main
- Select Settings
- Select Wireless and Networks
- Select Mobile Networks
- Select Access point Names
- Delete all APN's in this section.
- Press Menu
- Press New APN
- Enter the follow settings one for General Data . The other for MMS
Name: IN - Airtel Web
APN: airtelgprs.com
Proxy:
Port:
Username:
Password:
Server:
MMSC:
MMS Proxy:
MMS Port:
MMS Protocol: WAP 2.0
MCC:
MNC:
Authentication Type: PAP
APN Type: default, supl
PXT Messaging MMS:
Name: IN - Airtel MMS
APN: airtelmms.com
Proxy:
Port:
Username:
Password:
Server:
MMSC: http://100.1.201.171:10021/mmsc
MMS Proxy: 100.1.201.172
MMS Port: 8799
MMS Protocol: WAP 2.0
MCC:
MNC:
Authentication Type: PAP
APN Type: mms
Google death is the answer for most questions . Have fun...love Mumbai
Click to expand...
Click to collapse
Thank you so much for the above information. I'm finally getting ready to leave for my trip tomorrow and I tried entering the APN information as you described above. When I try to save it, it tells me "MCC field must be 3 digits" and won't let me save. Can you offer anymore advice?

Net10 Tethering?

Just got Net10 to try their service. The connection speed here is way better than with Simple Mobile, but when I try to tether with the phone nothing happens. I can connect but the browser forever says "looking up ..." I can browse on the phone, just not the desktop. Does anyone know if Net10 blocks tethering, or if there's something I don't have set up correctly?
APN Settings:
APN Name: net10
APN: tfdata
MMSC: mms-tf.net
MMS Proxy: mms3.tracfone.com
MMS Port: 80

jackson777 said:
Just got Net10 to try their service. The connection speed here is way better than with Simple Mobile, but when I try to tether with the phone nothing happens. I can connect but the browser forever says "looking up ..." I can browse on the phone, just not the desktop. Does anyone know if Net10 blocks tethering, or if there's something I don't have set up correctly?
APN Settings:
APN Name: net10
APN: tfdata
MMSC: mms-tf.net
MMS Proxy: mms3.tracfone.com
MMS Port: 80
Click to expand...
Click to collapse
Well, straight talk blocks tethering. And Net10 and Straight Talk are from the same company, so probably. What SIM did you get, ATT?

Acvice said:
Well, straight talk blocks tethering. And Net10 and Straight Talk are from the same company, so probably. What SIM did you get, ATT?
Click to expand...
Click to collapse
yeah, it's an att sim. I saw that you can get a free tmob sim, will that make a difference?

I have straight talk and I can tether...I never had a issue...I do it all the time
Sent from my Galaxy Nexus using xda app-developers app

[Q] Issues with Switch from ATT to Straight Talk

Hi everyone,
I'm brand new to this forum; so, hello, my name's Kyle! Anyway, my friend just signed up for straight talk and cancelled her ATT plan. She got a SIM card from Straight Talk and put it in her unlocked ATT Samsung Captivate Glide (she bought it unlocked and it was unlocked before she put her ATT SIM card in). When she put the Straight Talk SIM in and went to set up the APN, there was nothing at all listed. I tried helping her, and tried many different configurations, waited 5-10 seconds before hitting the back button, tried using the save button, and still no APN (list said empty). When I rebooted her phone, it came up with the message that the network was locked (can't remember exactly what it said, but it's where you need to put in the 8 digit code, and it says 'dismiss' below it.) I dialed *#7465625# and it says network lock [yes].. My question is, what do I do? She bought it brand new, unlocked, so does it need to be rooted and unlocked? I read something about flashing the ROM or something? I don't know a whole lot about phones and rooting, ROM, and whatever else, but I learn quickly. I don't even really know the questions to ask right now. Any and all advice would be greatly appreciated. Thank you in advance.
P.S. I believe she's running Android 2.2 right now

The phone is still SIM locked. If she is in good standing with AT&T (no money owed, no contract, or if there was a contract, she paid the terminiation fee if it was ended early), she should be able to call AT&T and ask nicely for the unlock code. She should just stress that she is the owner of the phone.

dzl said:
The phone is still SIM locked. If she is in good standing with AT&T (no money owed, no contract, or if there was a contract, she paid the terminiation fee if it was ended early), she should be able to call AT&T and ask nicely for the unlock code. She should just stress that she is the owner of the phone.
Click to expand...
Click to collapse
Thank you so much for your response. She did exactly that today, and had no issues with ATT on the phone. The unlock code worked, and the phone is up and running. The only problem now is that she can call and text, but the data isn't working; I'm assuming it's because of the APN. I've found some APNs to try online, but every time I go to save them it takes me back to the menu with the two existing APNs and doesn't save the one I entered. I read that I should wait 5-10 seconds and hit the back button, but that hasn't worked either Also, one more question (sorry), if she upgrades from 2.2 to gingerbread will it create any problems? Thank you again, and in advance!

WayfaringMonk said:
Thank you so much for your response. She did exactly that today, and had no issues with ATT on the phone. The unlock code worked, and the phone is up and running. The only problem now is that she can call and text, but the data isn't working; I'm assuming it's because of the APN. I've found some APNs to try online, but every time I go to save them it takes me back to the menu with the two existing APNs and doesn't save the one I entered. I read that I should wait 5-10 seconds and hit the back button, but that hasn't worked either Also, one more question (sorry), if she upgrades from 2.2 to gingerbread will it create any problems? Thank you again, and in advance!
Click to expand...
Click to collapse
My bad, haven't been on XDA in a while and just noticed this.
I personally don't have a Captivate, just cruising trying to learn something about some qwerty Andorid phones. 2.3 definitely won't cause any issues, I would actually suggest updating to it since it might solve some bugs like the one you are experiencing with creating a new APN. Here is my APN that works fine, incl data and mms FWIW:
Name: StraightTalk ATT
APN: att.mvno
Proxy: blank
Port: blank
Username: blank
Password: blank
Server: blank
MMSC: http://mmsc.cingular.com
MMS proxy: 66.209.11.33
MMS port: 80
MCC: 310
MNC: 410
Authentication Type: blank
APN type: default,supl,mms
APN protocol: IPv4
Bearer: Unspecified
Click to expand...
Click to collapse

WayfaringMonk said:
Thank you so much for your response. She did exactly that today, and had no issues with ATT on the phone. The unlock code worked, and the phone is up and running. The only problem now is that she can call and text, but the data isn't working; I'm assuming it's because of the APN. I've found some APNs to try online, but every time I go to save them it takes me back to the menu with the two existing APNs and doesn't save the one I entered. I read that I should wait 5-10 seconds and hit the back button, but that hasn't worked either Also, one more question (sorry), if she upgrades from 2.2 to gingerbread will it create any problems? Thank you again, and in advance!
Click to expand...
Click to collapse
She should update to 4.0.4 (Ice Cream Sandwich). It's a marked improvement over Android 2, and the Captivate runs is swimmingly.
My wife has Straight Talk on her Captivate, and this is what settings work there:
Name: Whatever
APN: att.mvno
MMSC: http://mmsc.cingular.com
MMS proxy: proxy.mvno.tracfone.com
MMS port: 80
MCC: 310
MNC: 410
APN type: default,supl,mms,hipri
APN protocol: IPv4
APN roaming protocol: IPv4
Everything else is set to "Not Set".
Note that if you have a "Straight Talk" SIM for the AT&T network, then there's no need to have the phone SIM unlocked. It sounds like you have a "Straight Talk" SIM for the T-Mobile network though, which requires a SIM unlock, and will unfortunately only yield EDGE speeds for data (in most of T-Mobile's network).

Tmobile Note 3 and Att Straight Talk MMS working settings?

Anyone;
I am using my tmobile Note 3 with their $30 prepaid plan. I just got them to send me an unlocking code and the Note 3 is now unlocked. I have a new ATT straight talk SIM card but have not activated it since my renewal is on 3/21 with Tmobile. I will be testing their $45 plan to see if I get better signal and speed in my area, if not will go back to TMobile $30 plan.
Can someone who has the stock Samsung messaging app working with mms sending and receiving post their APN settings please.
As long as there is LTE in my Austin/Cedar Park/Georgetown area, it should show on my phone, correct? I am using their new SIM card.
Tia,
Ian B

Mr Ian B said:
Anyone;
I am using my tmobile Note 3 with their $30 prepaid plan. I just got them to send me an unlocking code and the Note 3 is now unlocked. I have a new ATT straight talk SIM card but have not activated it since my renewal is on 3/21 with Tmobile. I will be testing their $45 plan to see if I get better signal and speed in my area, if not will go back to TMobile $30 plan.
Can someone who has the stock Samsung messaging app working with mms sending and receiving post their APN settings please.
As long as there is LTE in my Austin/Cedar Park/Georgetown area, it should show on my phone, correct? I am using their new SIM card.
Tia,
Ian B
Click to expand...
Click to collapse
I did the very same thing that you're planning for the same reason. Out side of the city T-Mobile's signal is very weak so I couldn't stream music. So this was an option without being expensive.
NAME: StraightTalk/AT&T
APN: tfdata
PORT: 80
MMSC: http://mms-tf.net
MMS PROXY: mms3.tracfone.com
MMS PORT: 80
APN Type: default,mms,supl,agps,fota,dun,hipri,entitle
Then go to the home screen menu setting, more networks, mobile networks, network mode and change to LTE/WCDMA/GSM

Muffycheeks said:
I did the very same thing that you're planning for the same reason. Out side of the city T-Mobile's signal is very weak so I couldn't stream music. So this was an option without being expensive.
NAME: StraightTalk/AT&T
APN: tfdata
PORT: 80
MMSC: http://mms-tf.net
MMS PROXY: mms3.tracfone.com
MMS PORT: 80
APN Type: default,mms,supl,agps,fota,dun,hipri,entitle
Then go to the home screen menu setting, more networks, mobile networks, network mode and change to LTE/WCDMA/GSM
Click to expand...
Click to collapse
Thanks for info. Did a print screen to set up when I activate the SIM card. I am paying $30 for plan, $10 fourth week for more mins and $3.08 for Skype free wifi calling which all adds up to $43 bucks a month. The $45 ATT plan is about the same and I rarely go over 1gb of data a month.
Ian B

Thanks everyone for your help. Activated the sim card today and added $45 plan. Getting excellent signal at my sister's where I could not with TMobile. Going to call back tomorrow to have the number ported over.
Ian B