[Q] Data suddenly not working. Please help. - AT&T Samsung Galaxy S II SGH-I777

First let me start with the phone:
AT&T Galaxy S II running 4.1.1 SuperNexus Rom Build 4-20121007. Kernel is 3.01.15-CM-g3802d32 faryaa kernel. Baseband 1777UCLE5
Everything was working fine. I've been running SuperNexus for about a month. The only initial problem I had was that the baseband was not working upon startup and I had to put a new baseband in for it to work, got that fixed and been flying smooth for a month with no issues. Today...suddenly it stopped being so smooth.
Let me clarify:
- I can make outbound calls and hear just fine (couldn't do that when baseband was wrong)
- I can recieve and send text messages
- I show a full reception bar up top with 3g, the signal bar is grey. That may mean something or it may just be the color theme for this rom. I didn't really pay attention before the issue.
- Network info: AT&T network, Signal Strength -83 dBm 15asu, Mobile Netowrk type UMTS:3 HPSA+ :15, Service state is 'in service', Mobile Network Status 'connected'
I was literally in the middle of surfing the internet and pulled up a browser for a webpage, suddenly it hung in terms of loading the website. It did nothing for about ten minutes. I then found that all apps that use data do not work. They attempt to load but give errors. I rebooted the phone several times, shut it down fully several times, removed the battery and sim card, replaced and restarted. None of that worked. I made a call out to a friend and he could hear me and I him very clearly, call dialed out and connected without issues. Text messages come and go just fine.
The only thing I can think of is that they turned on the 4g signal in my area, or near it today and maybe there's an issue there.
Please help.
Thanks in advance.

http://forum.xda-developers.com/showthread.php?t=1996409
Sent from my SGH-I777

fifthmanstanding said:
First let me start with the phone:
AT&T Galaxy S II running 4.1.1 SuperNexus Rom Build 4-20121007. Kernel is 3.01.15-CM-g3802d32 faryaa kernel. Baseband 1777UCLE5
Everything was working fine. I've been running SuperNexus for about a month. The only initial problem I had was that the baseband was not working upon startup and I had to put a new baseband in for it to work, got that fixed and been flying smooth for a month with no issues. Today...suddenly it stopped being so smooth.
Let me clarify:
- I can make outbound calls and hear just fine (couldn't do that when baseband was wrong)
- I can recieve and send text messages
- I show a full reception bar up top with 3g, the signal bar is grey. That may mean something or it may just be the color theme for this rom. I didn't really pay attention before the issue.
- Network info: AT&T network, Signal Strength -83 dBm 15asu, Mobile Netowrk type UMTS:3 HPSA+ :15, Service state is 'in service', Mobile Network Status 'connected'
I was literally in the middle of surfing the internet and pulled up a browser for a webpage, suddenly it hung in terms of loading the website. It did nothing for about ten minutes. I then found that all apps that use data do not work. They attempt to load but give errors. I rebooted the phone several times, shut it down fully several times, removed the battery and sim card, replaced and restarted. None of that worked. I made a call out to a friend and he could hear me and I him very clearly, call dialed out and connected without issues. Text messages come and go just fine.
The only thing I can think of is that they turned on the 4g signal in my area, or near it today and maybe there's an issue there.
Please help.
Thanks in advance.
Click to expand...
Click to collapse
My friend was having literally the exact same issue today on his S3 and I was having a little problem on my phone too. At this point I think it's AT&T. My S2 was not go to HSPA+ it would just stay on 3G when I turned data on.

It is AT&T. They are changing the APN they use for data. I posted a fix for this in the other thread relating to this issue.
Sent from my SGH-I777 using xda app-developers app

Related

Occasional No Dial Out/SMS Sending

Hi all,
Looking for a bit of help/advice.
On occasions, probably between 1-3 times a day, when I try to make a call on the Hero, the call appears to look like it is dialing out but it just sits there saying 'dialing' but never connects to the destination which can be any UK number / Orange 150 etc. Either rebooting the phone or leaving it for 10 mins or so fixes the problem, but it does become annoying!
At the same time as this happening, when I try to send an SMS, I get the error 'SMS not able to send' in the notification bar. Again, I have to keep trying and it sorts itself out.
A final problem and I am not sure if it is related or not is I have had numerous people try calling me at various times, my phone doesn't ring or display a missed call, nor do I get a missed call SMS but the person who tried calling me said the line was actually ringing first and then went through to voicemail. I have witnessed this myself by calling my phone, getting a ringing line but the phone doesn't respond?
Any ideas of help would be appreciated. This problem has existed on Modaco Roms 2.2, 2.8 and 3.0 - I'm on Orange UK.
Thanks,
Nick
I have the same problem with the Orange Poland. When I logged on to the 3G sometimes you can not call or send SMS. When I switch to the 2G network problem disappears.
Yeah, it is strange, I have done that too, turn off the 3G to 2G and back to 3G which sometimes cures it, but not all the time.
I've tried various things, made sure the apps aren't closed with Taskkiller or anything like that. There is no specific time or occasion it happens, it just does now and again.
Well I have tried everything. I recieved all the settings from my operator , changed over 10 ROMs and gone back to the original too, i tried what you said to turn 3G off , i reset to factory , i unrooted.....Nothing works for me. I just get "Unable to send". I also tried 4 SIMs from different operators !!!

[Q] No calls + No mobile network !!!

I've been rooted and running a few different ROM's for several months now.
I'm currently on XTRSense 5.0.1, having loaded it within the past week or so. All has been working swimmingly until this morning. I had used it to check weather and such before going to work (tho' I don't recall if I used home WiFi or 3G) and then hadn't looked at my phone till I got to work.
My phone signal was nil with an X over it. I tried toggling on/off for mobile network but the widget and the Options checkbox are both greyed out. I tried rebooting the phone and it still didn't come back. It prompted me to set my clock b/c it wasn't getting network time anymore (1st time I've seen that).
Feeling desperate, I even tried changing the NAM CDMA settings to EVRC-B just to see if I could "jiggle the handle" for the mobile network and get it going. All to no avail.
Text messages do not reach the phone, and calls ring through to voice mail (though not immediately, as though it were ringing the phone).
I'm at a loss and doubtful I could call Verizon to get much help.
Any help anyone can provide would be deeply appreciated!
Thanks!
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Disregard... Verizon must be have a weak day and my coverage is a bit dodgier than usual. I usually have better coverage at work, but I had to go hunting for better signal. I guess that's what I get for troubleshooting while sitting at my desk...

straight talk

ok i got a i717 note and a att striaght talk sim card. I finially got the APN setting that came with the straight talk sim to save. Phone is making calls and messaging but the data services are not working. What am i doing wrong?
If your settings are like the ones in the screenshots I posted, then I would say there is likely problems with data im your area.
my settings are the exact same. no luck
testdummy said:
If your settings are like the ones in the screenshots I posted, then I would say there is likely problems with data im your area.
Click to expand...
Click to collapse
also my carrier says "HOME" in the top left corner. I wonder if this has something to do with it?
Mine displays HOME when I pull down the notifications window and only for a few seconds when in the lock screen. Other than that it doesn't display HOME from what I've noticed. I don't think you have to worry about the what is displayed as the carrier's name. Since you are able to make phone calls and received messages (both SMS and MMS?) and the only thing that is not working is just data, then it's probably something in the phone configuration or a problem in your area. If you haven't done so yet I would recommend contacting Straight Talk.
What symbol, if any, do you have to the left of the signal bar?
I know this probably isn't the case but did your turn Wifi off? If not try turning it on or off and making sure it stays off so you can connect to the data network.
I don't know if you have done so but you could try a factory reset, not sure if this would help.
If none of the above works you could try rooting and flashing the AT&T stock rom to the phone or some other rom. (Consult this recommendation with someone more experienced here on the forums. Personally, I don't see more troubleshooting options.)
If there is no problem with the network and none of the above works then I think your phone may be damaged, unless it used to work perfectly with AT&T. Did you switch from AT&T to Straight Talk or did you buy the buy through ebay or on the street to activate ti with them?

[Q] Phone keeps losing contact with network (bell)

Hi guys,
I just switched to Bell (Canada) and have a Galaxy S3.
I have noticed in the last day or so that I keep losing the connection with the carrier. I will try to send a text message and it says unable to send right now and the notification screen will not display bell as the carrier. A few seconds later, it will work.
My connection when it is working is quite high signal (max bars)
Does anyone know what could be going on or how I might diagnose it further?
Thanks
I have installed an app called no signal alert and it seems that I keep entering "emergency calls only" mode every few minutes.

Question 4G+ Not working anymore

Hi everyone,
I'm having an issue with my device since yesterday. I wanted to make calls but as soon as I try to call someone I was getting "couldn't connect message"
I thought that it's maybe something to do with the carrier but i restarted my device, and after the restart I saw that I now only have 4g, and not 4g+ displayed, and still got the couldn't connect message then trying to call anyone. When switching to 3g/2g in settings I was able to call, and I was also able to receive calls even when on 4g.
My internet is working fine over mobile data, there were no issues with it.
Also, VoLte icon is being displayed all the time, thatdidn't go away.
At some point yesterday I was able to make calls over 4g again, but never regained the 4g+ and a few calls dropped after 5-6 minutes of talking.
I tried a SIM card from a different provider, but still see just 4g, and not 4g+
So I am not sure what could be the issue anymore.. Did anyone maybe encounter something similar after this last update? Maybe that's the issue. I don't know if I should consider suspecting a hardware issue because internet works fine all the time.
Clear system cache, clear sim toolkit data, and do a network reset.
See if that gets it...
blackhawk said:
Clear system cache, clear sim toolkit data, and do a network reset.
See if that gets it...
Click to expand...
Click to collapse
Thanks for the tip!
I actually tried doing all of that and nothing was helping.
At the end I changed the CSC back to my stock one (TOP) and 4g+ is back.
I have no idea why this happened because I was using BTE csc for months and everything was ok. I'm just glad that it's not a hardware issue.

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