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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 !

Accidentally changed APN setting now no call/text but data connection is fine

I was out in the country trying to get my phone connected to a network as the rest of my family (same plan) had connections with their iphones. Low and behold a new setting shows up in mobile networks that I had not seen before, Access Point Names. My biggest mistake was changing settings in something I knew nothing about but I did and pressed restore factory default. Once I reached an area that had a data connection, it seemed all worked well until I tried to send a text. I soon found out I couldn't send or receive any texts/calls.
I've flashed to stock, updated prl, and nothing has worked. I tried to change apn settings using those from this site 4GLTE, but it proved futile. Now I'm stuck and more frustrated than I was before I couldn't get service.
I feel like an idiot and really could use some help! Thanks!

emfajardo2 said:
I was out in the country trying to get my phone connected to a network as the rest of my family (same plan) had connections with their iphones. Low and behold a new setting shows up in mobile networks that I had not seen before, Access Point Names. My biggest mistake was changing settings in something I knew nothing about but I did and pressed restore factory default. Once I reached an area that had a data connection, it seemed all worked well until I tried to send a text. I soon found out I couldn't send or receive any texts/calls.
I've flashed to stock, updated prl, and nothing has worked. I tried to change apn settings using those from this site 4GLTE, but it proved futile. Now I'm stuck and more frustrated than I was before I couldn't get service.
I feel like an idiot and really could use some help! Thanks!
Click to expand...
Click to collapse
call your carrier and check your apn setting with them. Fastest and easiest way.

Lineage OS 7.1.1: Unable to send SMS messages

Hello all,
I flashed my girlfriend's Sprint S5 with Lineage OS recently without a hitch, all services working perfectly. We ended up traveling, so she went to Sprint to set up a temporary international roaming plan. Everything was completely as expected abroad. When we got back, her phone would not send SMS messages.
We tried the usual airplane mode and such, and to no avail. Assuming something was wrong with the network configuration from travelling, we reset network settings. Didn't work. I then decided to just do a full wipe and re-flash of Lineage OS. Still doesn't work. I then resorted to going back to the stock TouchWiz ROM from Sprint. At that point, under the stock ROM, SMS were sending. Out of curiosity, we flashed back Lineage OS, and SMS will again not send. We noticed that if the SIM card is removed, SMS will send, but the phone would not be able to access 4G LTE. We also confirmed with Sprint that there are no restrictions on the account.
What could be causing this to occur only on custom Roms? Do we need to do a PRL update? If so, how does that work on stock Android?
Thanks in advance!

S5 sprint No outbound sms
I've had this problem for weeks....So far the only solution is using Google voice app....

I'm using LOS 7.1.1 20170207 kltespr nightly, LTE SMS can only receive, sending doesn't work. Only 3G SMS works.
Things I noticed:
Settings -> About Phone -> Status -> IMEI Information. When on 3G, all information is displayed here, when on LTE, only IMEI and IMEI SV is displayed, there's no PRL/MIN/MEID/ICCID anywhere, not even disabled or greyed out, just hidden completely.
ICCID also shows DUMMY_NV_ICC_SERIAL instead of the actual ICCID.

Same experience for me, I've been trying to find a workaround for over a month with no success. Alternative text messaging apps seem to work, but I don't trust 3rd parties with my SMS.

Unable to send SMS
Mike.
Which third party SMS app are you getting to work? Besides Google voice I have had no luck with any third party app?

I'm having the same issue. I'm on Resurrection ROM which is based on Lineage. Since update I can't send SMS at all other than via Google Voice. I can receive SMS and I can send/receive MMS.
I did find that if I change to 3g only for my network settings, I can send SMS. But then of course I don't get LTE data speeds for everything else. So the issue for me at least is tied specifically to LTE. Wondering if there is an APN or other setting I can change that would fix this but so far no luck finding anything.

Bug reported since 01/28
https://jira.lineageos.org/browse/BUGBASH-37

I've run into the same problem or similar. If I set my preferred network type to GLOBAL then I can send and receive SMS/MMS messages but I'm forced to either Roaming LTE or 3G. It's often stuck in 3G after a drive for any distance. If I force it to LTE, then SMS/MMS stops working and I can't place or receive calls either but the network will show up as LTE and Sprint.
To get there from Settings Home -> More (under Wireless and Networks) -> Cellular networks -> Preferred network type -> Choose Global.
Sometimes I can force it back to LTE but roaming if I switch temporarily to LTE then once it connects switch back to Global. Occasionally I have to put it in airplane mode to get the radios to reset and connect but some combo of switching network type and ending up in global and switching into and back from airplane will do the trick.
YMMV of course.

one way I fix it temporarily is to:
cell networks - carrier settings, let it crash
go in again and let it find your carrier
once connected, make a phone call at least to get it ringing
I can then make sms mms.
it's a rediculous work around but it works for me every time

SMS Sending Problem with Lineage 14.1 (31.07.2017)
Heyy
I'm not able to send sms from SIM 1 but can send sms from SIM 2 in Lenovo A6020a46 (2GB) on Lineage 14.1 (31.07.2017).
The same SIM is working good in another roms and Calling + Internet are working properly.
After dialing *#*#4636#*#* in Phone Information - SMSC Refresh then it appeared "Phone no.", 456 and I pressed Update.
But there was no process for saving or updating. Then I reentered in Phone Information but SMSC Shows blank.
What to do??? anybody help in this matter will be immensely appreciated.
Dilpreet Sidhu

I made this file using Odin with the steps from here. I flashed the file, set the connection to LTE aand it worked. https://forum.xda-developers.com/showpost.php?p=71582847&postcount=5908

To fix this issue with having LTE signal and sending SMS at the same time you have to open EnginneringMode app (or *#*#3646663#*#*) and check 'Sms over Sgs support' in Misc Feature Config tab.

Doesn't work because nothing comes up entering the code. Any idea?

2ISAB said:
Doesn't work because nothing comes up entering the code. Any idea?
Click to expand...
Click to collapse
If that code doesn't work for you, try to find an app called Engineering Mode MTK. Unfortunately I cannot attach any screenshots yet (I got less than 10 posts).

fix
there is an option in network settings (enhanced 4G LTE mode for comunications etc) i disabled that option and messaging works fine now. before unchecking this option i could only send sms only with phone on 3g mode, now it works fine. i think this option is for hd voice calls via 4g lte.

I see this is an old problem and I´m having the same problem. I can receive SMS, but I can´t send.
But to add to that, I couldn´t connect at all with my previous carrier and changed carrier after which I can use data, call and send SMS. I still can´t receive SMS.

Nexus 6p LTE broke after Rom update

The basic problem is as follows:
I've got a Nexus 6p on which I dirty flashed an 8.1 update (27 Feb 2018) of ABC Rom over an earlier 8.1 version (01 Jan 2018) of ABC Rom. After that, the issues began. At boot, I'd be on 3g and if I toggled airplane mode off and then on, I could get LTE for about 10 seconds. However, it would then drop back to 3g. It's probably worth noting that my cellular provider is Verizon.
I tried everything that I could think of and/or learn via the google. Such as:
Wipe system, data, cache, and dalvic
Revert to stock
Install different/older radio images
Changed SIM (although still Verizon)
... nothing worked. I've read about people manually configuring their APNs. However, I've got a Verizon SIM, so that option does not exist... as far as I can tell.
I've identified a crappy work-around that allows me to get a stable LTE connection as follows:
Open the Phone's Testing Settings by dialing: *#*#4636#*#*
Tap "Phone Information"
Scroll down and set the "VoLTE Provisioned" toggle to the "on" position.
Then, toggle airplane mode on and off.
However, the reason I've described this as crappy is that doing this results in my phone being unable to make or receive calls. Whenever I try to make a call with VoLTE Provisioned, the call fails and reports "Server Error". Consequently, I generally just deal with the phone working in 3G. On the up side, this work-around does demonstrate that LTE is still possible... with the right configuration. Although, it would be nice if I could get both LTE and phone working vs just one or the other.
I came across this post suggesting that a possible solution is to boot the phone up with a non-Verizon SIM, power it off, and then boot it up again with the Verizon SIM. I'm not sure how this fixes the issue. However, before I go buy a $30 SIM in the hopes that it will fix my issue, I figured I'd make this post and see if anyone has any other ideas how I might correct this.
Any ideas are appreciated.
[email protected]

So after a few months of using 3g, I got my hands on brand new AT&T SIM card. (For what it's worth, it hadn't even been provisioned yet). I went ahead and boot the phone with this new sim card. (I also reset the new APN settings to the default, although it probably didn't do much). After powering the phone down and putting the Verizon Sim back in, I've got my LTE back and all is good.

GSM / Network Signal grey out

Hey all, thanks in advance for any advice offered.
For some reason my GS8+ has a greyed out GSM signal bar with an 'x' next to it. As far as I remember the only thing I did was put it to charge overnight. I've tried removing the SIM, still grey, inserting another carrier's SIM (known to be working), still grey, my original SIM also works fine in another phone. Everything else not related to cell service works fine (wifi, bluetooth etc.). I can see the IMEI number in settings as usual.
I've tried resetting the network settings, factory resetting the phone, I've even reloaded the ROM via Odin. No joy.
The phone is pretty much stock, except for the fact that I changed the carrier software from AT&T to Verizon in order to use a particular LTE band. Since I did that, the phone worked fine for several months.
I've only noticed two things odd thus far. After reloading the ROM and downloading a few updates, a game (Empire) appeared from nowhere installed in my app drawer. Also, the Airplane mode icon in the notification shade is light blue, similar to when it's transitioning from off to on. Airplane mode seems to work though, because I can toggle it, and the wifi reacts as such.
I can't search network operators manually (says: Error while searching for networks), changing the network mode does nothing, and none of the secret dialing codes work either. They all say "Mobile network not available". With a SIM inserted, my SIM status menu says, Network: unknown, Signal strength: -113dBm 0 asu, Service state: Radio off.
Sorry if I'm long-winded, but I'd appreciate any assistance at all. Thanks again for taking the time to read.

Hey, I'm having the same problem. Did you find a fix?

Nope.

I had a same issue after I update girlfriend's s7 . The ROM (custom one) was based on newer version but the firmware and BL were old.
I know and I understand that you just put it to charge overnight but you can give a try to flash latest firmware CRED one.
Allso is mandatory to chose the correct country and carrier. Chose the country where you are and Verzion carrier

I have same issue tried flashing other roms. All didn't work