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No 3G icon or data connection

Hello everyone,
I got my Captivate yesterday shipped from letstalk.com. Everything with it has been working well, except I don't get a data connection with it at all, except WiFi.
As instructed by the sticker on the box the sim I am using is from my old phone, a Samsung SGH-A707 flip phone. The sim is a little over two years old. When the sim is in that phone, I get a 3G icon immediately.
I have tried turning the phone off, leaving it for several minutes, turning it back on again. Also removing the battery.
When I go to Settings, Wireless and Networks, Mobile Networks, Access Point Names, I see ATT WAP listed. I have tried adding another Access Point Network based on settings seen elsewhere in this forum which differed slightly by specifying a username and password, and not having the proxy and port set. But selecting this other APN has no change.
When I go to Network Operators all I see is an unselectable 'Default Setup' item. Others have reported seeing network connection information there, can anyone confirm on their Captivate?
Checking or unchecking 'Data roaming' does not seem to have any effect.
Under Settings, About Phone, Status the Mobile Network Type is listed as 'HSDPA' but Mobile Network State is 'Disconnected'.
LetsTalk are sending me a new SIM to try, but since I get a 3G connection on my old phone my suspicion is that this is a phone problem.
Does anyone have any other ideas though? Any help would be much appreciated.

Wow well you found something I hadn't yet. There was some talk about whether the captivate did hsdpa or not.. and according to the setting you looked at, it does. In that setting does it show your network is on aT&T? You shouldn't have to create a new APN, the default one should work. Sure you don't have the phone in airplane mode? I'm sure that's a stupid question, just asking.

If you don't have a 3G sim card I hear 3G wont work. You can get a new sim from ATT for free. Oh and about hsdpa ATT disables that Icon and uses a 3G one. I seen a test somewhere with two dif phones one with a 3G icon and one with the H getting the same speeds.

radi0chik said:
Wow well you found something I hadn't yet. There was some talk about whether the captivate did hsdpa or not.. and according to the setting you looked at, it does. In that setting does it show your network is on aT&T? You shouldn't have to create a new APN, the default one should work. Sure you don't have the phone in airplane mode? I'm sure that's a stupid question, just asking.
Click to expand...
Click to collapse
Yeah it shows AT&T under Network.
Nope, not in airplane mode, but thanks for checking, I'd rather you'd assume I was stupid than not ask me the question!
YellowGTO said:
If you don't have a 3G sim card I hear 3G wont work. You can get a new sim from ATT for free. Oh and about hsdpa ATT disables that Icon and uses a 3G one. I seen a test somewhere with two dif phones one with a 3G icon and one with the H getting the same speeds.
Click to expand...
Click to collapse
It is a 3G sim, at least that's what it is labeled as. Like I said I (apparently) got a 3G signal on my old phone. And a new sim is on the way.

on the sim does it say 3G with flames around it lol (thats how my last sim was and it was 3G)

I went to the ATT store to get my captivate. I had an old sim ATT logo with flames that worked in a N1, N97, Bold 9700 and iPhone. I too showed no 3G. They had to replace my sim and it started working. They couldn't explain it.
-JChao

labbu63 said:
on the sim does it say 3G with flames around it lol (thats how my last sim was and it was 3G)
Click to expand...
Click to collapse
That's the one, flames and 3G.
jiayi345 said:
I went to the ATT store to get my captivate. I had an old sim ATT logo with flames that worked in a N1, N97, Bold 9700 and iPhone. I too showed no 3G. They had to replace my sim and it started working. They couldn't explain it.
-JChao
Click to expand...
Click to collapse
Great, that gives me some hope the new sim that is on the way could fix it, thanks!

I had this problem as well. This fix worked for me:
Settings > Wireless and network > Mobile Networks
Check both boxes
- Use packet data
- Data roaming
ATT / Captivate Android 2.2
Hope this helps,

Did you find a solution for this? I'm having the exact same problem with my Captivate. No 3G icon and no packet data connection or mms. When I try to go to a page it immediately gives me the "not found: check your data connection" page, and when I try to send a mms, the 3G icon appears like if it was trying to connect and send it and then disappears when the message fails to send.

I just updated to 2.2 today and I no longer have 3G as well.

just an FYI as long as wifi is turned on you will not see the 3g icon.
I have noticed that when you turn wifi off you generally will not see the 3g icon until you do something with the phone that requires data connections
Turn off wifi and try opening a website via browser...the 3G icon should pop-up automatically at that point

scottlinux said:
I had this problem as well. This fix worked for me:
Settings > Wireless and network > Mobile Networks
Check both boxes
- Use packet data
- Data roaming
ATT / Captivate Android 2.2
Hope this helps,
Click to expand...
Click to collapse
Hello sir, I tried this and now i have 3G(icon popped up and internet/mms works) but am i incurring roaming charges?

For me even that's not working, I think my stupid phone is broken.

When I got a refub'ed Captivate for my partner via AT&T online store since it was only $49, I followed the instructions that came on the box, and everything worked except no 3G/data. So thinking that it might be because of a refurb'ed unit, I called AT&T. They told me to bring it into a corp office store. Fortunately, there's one right down the street from me. I took it in, they fiddled with it for about an hour, including swapping 3 different SIMs, and told me that it was a defective phone. I asked then how do I get a replacement. The rep told me to contact cust service for them to ship a replacement out and it'll include instruction to ship the defective one back since they can't replace refurb unit there at the store. So I went out to my car, called the cust service. The cust service rep told me that I have to send the defective one in first before they'll send me a replacement. I got angry and I went right back in the store, grabbed the rep that was helping me out and told him to please talk to the cust service rep to work things out because I'm not leaving the store until it's resolved. So they talked on the phone for about another 30 min. Then they hung up. The rep fiddled with it for another min, then handed me the phone and the 3G/data was working. Appearantly it was the way that the phone was registered with the system, something was out of whack and 3G/data was not available for that phone line. I then recalled that when I ordered the phone from AT&T, I got an email with instructions that I had to follow, which I did, then I followed the instructions that came with the box. I didn't think much at the time, but it seems like the instruction was telling to do the same thing as the email's instruction was except it was via a slightly different way. So I think I might have inadvertly register the phone twice. In any case, when that happens, 3G/data is not available and yet, the reps checking in the system found the account was setup correctly with the proper plans, changed plans, swapped SIMs, and came to the conclusion of defective phone when the phone was perfectly fine. I don't know if this will help any one. But if your phone is not flashed or rooted, you might want to have AT&T check your account and phone registration.

Go to Settings -> Wireless and network -> Mobile networks -> Access Point Names. Inside that option go to Menu -> Reset to default. (Reboot your phone)
Worked for me, i have a samsung captivate thats rooted running on 2.2 froyo and i was deleting some user data,believe it was dialer data (do not delete that, it also deletes your texts) and i all of a sudden my internet stopped working,i tried every setting and i even think there weren't any APN in the list of APNs because of deleting rampage, so i reset my phone and after that i reset the APN back to default settings and rebooted my phone and it worked. For some of you guys, if it still has an APN(the cingular one) in the list of APNs then all you have to do is reset it back to default by clicking menu with the menu button on your phone and click reset. It should work.

Sreenadh said:
Go to Settings -> Wireless and network -> Mobile networks -> Access Point Names. Inside that option go to Menu -> Reset to default. (Reboot your phone)
Worked for me, i have a samsung captivate thats rooted running on 2.2 froyo and i was deleting some user data,believe it was dialer data (do not delete that, it also deletes your texts) and i all of a sudden my internet stopped working,i tried every setting and i even think there weren't any APN in the list of APNs because of deleting rampage, so i reset my phone and after that i reset the APN back to default settings and rebooted my phone and it worked. For some of you guys, if it still has an APN(the cingular one) in the list of APNs then all you have to do is reset it back to default by clicking menu with the menu button on your phone and click reset. It should work.
Click to expand...
Click to collapse
you just replied to a thread 5 months dead..

Thank you for updating.
Sreenadh said:
Go to Settings -> Wireless and network -> Mobile networks -> Access Point Names. Inside that option go to Menu -> Reset to default. (Reboot your phone)
Click to expand...
Click to collapse
Worked like a charm on my Samsung Vibrant S on Virigin ... this gem of a tip shall be remembered. This started yesterday on the road when data was needed for a work emergency. If only I'd known it then. :-(
Now to fix the Wi-fi from turning itself on and off of it's own free will. *sigh*
Thanks for posting on an old post Sreenadh. You saved the day!

TRusselo said:
you just replied to a thread 5 months dead..
Click to expand...
Click to collapse
...and, it looks like someone found it useful.. Five months, or five days, or five minutes.. If it isn't helping, why say anything at all?
roguegrl said:
Worked like a charm on my Samsung Vibrant S on Virigin ... this gem of a tip shall be remembered. This started yesterday on the road when data was needed for a work emergency. If only I'd known it then. :-(
Now to fix the Wi-fi from turning itself on and off of it's own free will. *sigh*
Thanks for posting on an old post Sreenadh. You saved the day!
Click to expand...
Click to collapse

Hey Guys ok so i am with Rogers in Toronto...I flashed it to stock but have flashed it using AT&T stock (Dont ask why) and now i am unable to use my data... Any help would be greatly appreciated...i am able to use my phone with no issues....

Got my 3G back.
Sreenadh said:
Go to Settings -> Wireless and network -> Mobile networks -> Access Point Names. Inside that option go to Menu -> Reset to default. (Reboot your phone)
Worked for me, i have a samsung captivate thats rooted running on 2.2 froyo and i was deleting some user data,believe it was dialer data (do not delete that, it also deletes your texts) and i all of a sudden my internet stopped working,i tried every setting and i even think there weren't any APN in the list of APNs because of deleting rampage, so i reset my phone and after that i reset the APN back to default settings and rebooted my phone and it worked. For some of you guys, if it still has an APN(the cingular one) in the list of APNs then all you have to do is reset it back to default by clicking menu with the menu button on your phone and click reset. It should work.
Click to expand...
Click to collapse
Dude, thank you so much !

[Q] HowTo DISABLE LTE (AT&T)

I noticed today that in gaining LTE (already on an LTE plan with ATT, was using LTE on my N4 just fine) I lost the ability to DISABLE LTE and (more specifically) use wap.cingular as an APN. I've done reset to defaults, checked settings and compared to my N4, nothing. I can actually disable LTE, but even on forced HSPA+, I can only connect via PHONE, not WAP.CINGULAR APN. This is important as wap.cingular bypasses throttling and also does not count toward the throttle counter. Any help would be appreciated. Otherwise I'll have to leave to Tmo which...is an option but a last resort.

SOLVED!
I found an Xposed Framework module called Wedymod. Link http://repo.xposed.info/module/com.wedy.mod
In this module is an option called "Do Not Prefer APN". After selecting this and rebooting, the phone obeys the APN I tell it to use (wap.cingular in this case). I'd love to pick apart this module and figure out how/what it's doing specifically if anyone else has the skills I'd love to see it done. Enjoy guys!

compuw22c said:
SOLVED!
I found an Xposed Framework module called Wedymod. Link http://repo.xposed.info/module/com.wedy.mod
In this module is an option called "Do Not Prefer APN". After selecting this and rebooting, the phone obeys the APN I tell it to use (wap.cingular in this case). I'd love to pick apart this module and figure out how/what it's doing specifically if anyone else has the skills I'd love to see it done. Enjoy guys!
Click to expand...
Click to collapse
you can go Settings -> More -> Mobile networks -> Preferred Network Type Select 3G
Then under Access point names add a new APN for wap.cingular and name it AT&T 2 or AT&T Bypass Throttle and select and enable it
i dont see why you need an xposed stuff for this..

markdapimp said:
you can go Settings -> More -> Mobile networks -> Preferred Network Type Select 3G
Then under Access point names add a new APN for wap.cingular and name it AT&T 2 or AT&T Bypass Throttle and select and enable it
i dont see why you need an xposed stuff for this..
Click to expand...
Click to collapse
Actually I spoke too soon, it did NOT solve my problem. Upon further testing (deleting all non-wap.cingular apns) I still can't get a connection unless I add back pta or phone. Can you confirm what plan you're on? I'm on LTE Unlimited as my plan code and I CANNOT connect on wap.cingular over 3G. I can do it over 2g (not on LTE obviously) but the phone will NOT allow me to connect via 3g to wap.cingular. My i9100 has no problem with this.

compuw22c said:
Actually I spoke too soon, it did NOT solve my problem. Upon further testing (deleting all non-wap.cingular apns) I still can't get a connection unless I add back pta or phone. Can you confirm what plan you're on? I'm on LTE Unlimited as my plan code and I CANNOT connect on wap.cingular over 3G. I can do it over 2g (not on LTE obviously) but the phone will NOT allow me to connect via 3g to wap.cingular. My i9100 has no problem with this.
Click to expand...
Click to collapse
I'm on T-Mobile sorry im enjoying my 5GB of LTE speeds for 30$

New AT&T unlocked g flex 2 on tmobile. Data not functioning!

I jumped on the $250 eBay deal for this phone. Today, after installing my tmobile SIM card I can talk and text fine but the mobile data is not functioning. I've gone into the "Data Manager" menu and turned on the "mobile data"...airplane function is off....performed a factory reboot, and still nothing. What am I missing? Do I need to do an APN configuration? Being an unlocked phone, I thought it was a matter of plug and play. Data works fine in my moto g. Please help. Thanks

scrubsr1 said:
I jumped on the $250 eBay deal for this phone. Today, after installing my tmobile SIM card I can talk and text fine but the mobile data is not functioning. I've gone into the "Data Manager" menu and turned on the "mobile data"...airplane function is off....performed a factory reboot, and still nothing. What am I missing? Do I need to do an APN configuration? Being an unlocked phone, I thought it was a matter of plug and play. Data works fine in my moto g. Please help. Thanks
Click to expand...
Click to collapse
Yes, get your apn settings from Tmobile and enter inSettings, Networks,mobile networks, access point names. Create a new APN for t-mobile...save....choose the new apn. .... see if it works

Yes, sounds like you'd have to enter APN values, especially if voice and text are working. Not all phones auto populate APN values.
Not sure if these APN values are correct but it's a starting point: http://apn-settings.com/t-mobile-apn-settings-step-by-step-configuration/ . This is T-mobile's site for generic data settings for non T-Mobile phones: https://support.t-mobile.com/docs/DOC-2090

You guys were spot on...contacted tmobile and they had me up and running in less than 5 min with the proper APN config. Thanks for the help fellas.
Now if I could just get the latest software update without having to purchase the gophone SIM/plan...

Does Hotspot feature work for you?
scrubsr1 said:
You guys were spot on...contacted tmobile and they had me up and running in less than 5 min with the proper APN config. Thanks for the help fellas.
Now if I could just get the latest software update without having to purchase the gophone SIM/plan...
Click to expand...
Click to collapse
Sorry to revive such an old post, but I am thinking of doing the same thing right now ($200 for a new unlocked AT&T Flex2), and wondered if your WIFI Hotspot function on the phone works with TMobile?
I've tried other AT&T unlocked phones on TM, and when I turn on the hotspot feature, I get a network error.
Thanks.
ps. Can you post the APN settings that TM gave you?

New Android 10, 10.1” joying headunit no 4G data

Hey guys, I’ve recently entered the android headunit world and purchased a android 10, 10.1” joying headunit (octa-core 1.8ghz, 6gb ram 720p).
The headunit is fantastic and exceeds my expectations in every way, except the 4G mobile data function doesn’t work.
I’m from Aus, so I’m using a verified working 4g mobile broadband Telstra sim that is a GSM type (which joying says is compatible).
The unit detects the SIM as it should, identifies it as a Telstra sim, shows full 4G signal in the top bar however it has no data stream.
I have the mobile data function enabled, roaming enabled, no data saving features turned on and have made sure to set all my apps to unrestricted access.
The interesting thing is, if I turn the headunits hotspot feature on, and use the units 4g network as a hotspot and connect my phone to it, everything works perfectly and it shows a perfect data stream.
However the unit itself cannot use its own data.
I have followed all of the instructions given here:
Android car stereo, Android 10.0 Head unit
How to solve the 4G problem on Joyin --> 　How to solve the 4G problem on Joying head unit? Following ideas are for solving the 4G problem when there i
www.joyingauto.com
But seeing as how the unit can actively stream 4g data via the hotspot function, there doesn’t seem to be an issue with SIM card settings or anything hardware related.
Has anyone come across this or have any idea what I should do next?
(Let me know if you need any unit details)

I don't know if this will help because you said your hotspot works but have you checked your APN (access point names) settings to see if there are two options to switch between?

There was only one in there which was the default automatic setting. But I figured that if the headunit could still send and receive data via hot spot to another device that the APN must have been correct?

Simpko22 said:
There was only one in there which was the default automatic setting. But I figured that if the headunit could still send and receive data via hot spot to another device that the APN must have been correct?
Click to expand...
Click to collapse
Yeah, that's what I would have figured too. But I'm not an expert. Is there a DNS setting you could change? Perhaps add a custom DNS hostname such as dns.quad9.net ? I'm just guessing here.

I’ll have another look tonight but I don’t remember seeing any settings to change the DNS host name.

I was able to hotspot data just fine however the headunit had no internet.
Verify that the acces point names (APN) are set correctly. I had to copy the settings from my phone (using telstra) and apply them to the headunit.
This can be done by going to Mobile Networks > Access Point Names > [first one in list]
I had to change APN to telstra.wap and APN Protocol to IPv6. Also, there's a bug where the text is white on the input box. Have to select it to read it.
This worked with both the newer Android 10 (universal 10.1") and older Android 8 (Honda acord kit) on telstra data sims

Absolute legend, thanks mate.
I’ll try that tomorrow and see how it goes!

Thought I’d let you know it worked a dream, just had to change the apn and the protocols.
Thanks again!

I ordered a JY-UQD11N6G about 10 months ago and since then I have tried EVERYTHING that has been suggested here and by Joying. I've tried the universal build from FYT from this very informative post. The head unit recognizes the SIM and properly populates the APN data, but for some reason the time on the device sets back to the build time and date of the ROM every time the device reboots. I have also deleted the prepopulated APNs and created a new APN according the information on my phone when the SIM is inserted and functional which corresponds to the information here.
It does get (or keep) the right time zone, but it will not keep a persistent time through a reboot with a consistent power source.
Joying has sent me an unreleased ROM that doesn't fix the issue. I've tried different external antennae and I've torn the device apart to ensure that the internal antennae are properly soldered to the carrier board (they are). At this point I'm tired of paying $30/mo for a line I can't use.
I just noticed two one pixel wide green lines vertically traversing the LCD, but before I request a warranted replacement, is there anything else I should try?

I tried 4 different SIM cards. T-Mobile pre-paid didn’t word. The head unit recognized the card and everything looked right but no data. T-Mobile post-paid card taken straight out of a display phone in the store worked perfectly, but the cheapest plan was $40/month, and that’s too much. The Verizon card I took out of my iPad and tried did the same as the pre-paid T-Mobile card.
The 4th one I got is from Mint Mobile. Since they use the T-Mobile network, I thought it was worth risking $45. From their website I bought a SIM card with the 4GB phone plan at $15/month for 3 months. It works perfectly! After 3 months I can renew the plan for 12 months and stay at $15/month. 4GB is more data than I will ever use in a month just streaming my music, navigating and doing a few other things, like checking weather/weather radar.
Go with Mint Mobile. It may fix your data issues.

tweetdriver63 said:
I tried 4 different SIM cards. T-Mobile pre-paid didn’t word. The head unit recognized the card and everything looked right but no data. T-Mobile post-paid card taken straight out of a display phone in the store worked perfectly, but the cheapest plan was $40/month, and that’s too much. The Verizon card I took out of my iPad and tried did the same as the pre-paid T-Mobile card.
The 4th one I got is from Mint Mobile. Since they use the T-Mobile network, I thought it was worth risking $45. From their website I bought a SIM card with the 4GB phone plan at $15/month for 3 months. It works perfectly! After 3 months I can renew the plan for 12 months and stay at $15/month. 4GB is more data than I will ever use in a month just streaming my music, navigating and doing a few other things, like checking weather/weather radar.
Go with Mint Mobile. It may fix your data issues.
Click to expand...
Click to collapse
I tried Mint and had the same positive experience, and a Visible (Verizon mvno) card did not work.
But it had bars and showed me an lte connection, it just didn't give me any data. Apn settings were blank, but also wouldn't let me change them, oddly. I'd like to try again as I'm sitting on a visible sim for the next two months that would be cool to use but wondering why some carriers work and others don't, even if they are the same carrier (mvno vs non)?

I have Verizon working on mine, you have to add the APN settings manually via an app from the playstore. However....the device is unknown to verizon so they keep adding it as a phone to my account....for like $50+ a month...I told them i just want data and it should be classified as a connected device.

Simpko22 said:
Thought I’d let you know it worked a dream, just had to change the apn and the protocols.
Thanks again!
Click to expand...
Click to collapse
what provider? what are they charging you for on your account (device type)?

I haven’t used the data service for a while since I started just using apple car play, however my Carrier was Telstra (Australia) and it was something like $15 a month for a
2 GB 4g data sim.
At least as far as I can remember, it did have a mobile number associated with it so I think they were classifying it as a phone plan.

darknd666 said:
I have Verizon working on mine, you have to add the APN settings manually via an app from the playstore. However....the device is unknown to verizon so they keep adding it as a phone to my account....for like $50+ a month...I told them i just want data and it should be classified as a connected device.
Click to expand...
Click to collapse
What’s the APN app you got from play store?

I used an app called AddAPN on the Playstore for my Joying and it worked well.

AddAPN - Access the Add APN se - Apps on Google Play
Brings up the Add APN page directly without going through settings
play.google.com
Because the settings app doesnt allow access to edit them...the app edits the apn information since the stock settings app doesnt allow this for some strange reason..

What apps or settings might interfere with carrier network connections?

My carrier-branded, SIM-unlocked phone, when starting up normally, will - at first - not make or receive voice calls with the APN settings for the MVNO SIM card I have (mobile data works right away). I need to manually switch to the APN settings that came preinstalled with the phone (and which contain no settings except for the APN address of the carrier that I bought the phone from), then switch back to the correct APN. Then voice calls work. If I boot up in safe mode, this dance isn't necessary. Which would suggest that there might be some app or setting on the phone that interferes somehow with the proper functioning of the voice call function.
Not sure if this is related but I also note that the VoLTE setting is always greyed out (although it's set to "On") and I never see the VoLTE icon in my status bar though with the same SIM card, I see it every time I make calls on my other phone from the same manufacturer (Samsung).
I have posted the specifics of my phone in a previous post in the subforum for that model, see below. Any suggestions on how to trouble-shoot this?
docomo A53 voice network connection problem #APN
Weird issue... Brand-new A53, docomo-branded (I live in Japan), SIM-unlocked, fully updated (last update: Oct 1). Haven't messed around with it, no root, no nothing. USIM is from IIJmio, one of the discount MVNOs here, carrier is docomo. USIM...
forum.xda-developers.com

Start uninstalling the 3rd party apps, one by one.
Reviewing their permissions may yield clues.

blackhawk said:
Start uninstalling the 3rd party apps, one by one.
Reviewing their permissions may yield clues.
Click to expand...
Click to collapse
Yeah, guess I'll have to do that. Such a hassle. Any suggestions on what sort of app to focus on first?

axel007 said:
Yeah, guess I'll have to do that. Such a hassle. Any suggestions on what sort of app to focus on first?
Click to expand...
Click to collapse
Like I said in my first post. The app also likely runs at startup. Be glad it didn't permanently alter a hidden setting...

> Like I said in my first post.
Thanks, I must have missed your first post then. Makes sense.