3G problem. - Galaxy S III Q&A, Help & Troubleshooting

I own a rooted galaxy s3 running the stock ROM. I have a problem with the data connection. The internet stops working when data is on 3G. It only works when its H+ or E. I have also tried different carriers and confirmed that the problem is with the phone and not my carrier.
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Try flash different modems.
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Thanks.
I live in India. So which modem would be the right one for me?
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rocker1198 said:
I own a rooted galaxy s3 running the stock ROM. I have a problem with the data connection. The internet stops working when data is on 3G. It only works when its H+ or E. I have also tried different carriers and confirmed that the problem is with the phone and not my carrier.
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Click to expand...
Click to collapse
Try go to setting->more setting->network and select your network operations

leamoor said:
Try go to setting->more setting->network and select your network operations
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Click to collapse
I have already selected the correct operator. Problem is with my phone not the operator.
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Related

[Q] Has anybody realized there is a problem w/ setting call forwarding when on WiFi?

When on cellular data, this works fine. But when I'm on Wi-Fi, it doesn't work half of the time. I've tried different modems, and the problem is always there. Also, I realized that it takes the phone three times longer to send a text message when on Wi-Fi than it does on cell network. Anybody experiencing similar problems?
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Edit: forgot to say - lack of cell coverage is not an issue. H+ available where the problem occurs.
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I don´t have these problems. What firmware are you running? I´m on LF5
BUALF1 (branded vodafone Europe) with LF5 modem.
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We on the same modem version, So I not have a clue why you have these problems. Let´s wait and see if anybody else have problems or even better have a solution
Well, got DDLF3 modem today. Problem appears to be fixed
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S3 Signal Issue

Just wondering if anyone can help with a 3G issue I appear to be having.
I generally get great mobile internet signal, but today it keeps dropping out. If I select GSM only or WCDMA only then I can maintain fast mobile internet speeds, but if I select GSM/WCDMA (Auto) then my signal drops to 2G.
Signal in the area is fine for everyone else on the same network.
Has anyone else experienced this or know how to resolve it?
Thanks in advance
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I have the same problem... any solutions? Do we need to go back to our region stock?
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Forgot to mention my phone is stock running ICS haven't updated to JB yet
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Make sure its not your network problem first
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Checked, and it's not a network issue
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Funny thing is, i have the same problem.
I got great mobile signal on stock ICS, full bars. Until i flash another ROM, ARHD 13 to be exact.
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Try updating to JB if it's a software issue that should sort it.
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I think i found the solution.
I'm on ARHD13, with Phenomenon kernel. I flashed other modem, for my region, that is LH1. That's when i got terrible mobile signal.
Then i went back to Phenomenon thread, and found out that he's using XXDLIB ramdisk. So, i flashed XXDLIB, just to test it out.
And it worked! My signal bar is full again.
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BT Openzone

I'm with Vodafone UK and disabled every option I can find to so my phone auto connecting to BT openzone, yet if I have my wifi enabled when out and about it keeps connecting to it.
I wouldn't mind but can't get it to actually work, so would rather it not connect at all.
This isn't the same as connecting to open networks as it doesn't do that automatically it only connects to BT openzone and networks I have set it to remember.
Anyone any ideas what else I can set to stop this?
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Bump .
Anyone?
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riso123 said:
Bump .
Anyone?
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Click to expand...
Click to collapse
Turn WiFi off when not required .
jje
JJEgan said:
Turn WiFi off when not required .
jje
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Click to collapse
Wow. Another grand answer from you fella.
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Have you got an app from Vodafone to connect to bt open zone?
slaphead20 said:
Have you got an app from Vodafone to connect to bt open zone?
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Yeah. But I switched all the options off. Also appeared to do it before I installed the Vodafone app too.
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Try going into Wi-Fi and forgetting all the BT connections that you can see
slaphead20 said:
Try going into Wi-Fi and forgetting all the BT connections that you can see
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Click to collapse
That's the thing... I never asked it to connect to them and they still connect even after forgetting them.
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[Q] Can't Make or Receive Calls on AT&T Galaxy Mega i527 after UNLOCKING

Hi all, I am at my wits end with this.
I have an unlocked, rooted Galaxy Mega i527. Everything works fine . I have 4G LTE data on both Tmobile and AT&T sim but i cannot make or receive calls via the native phone dialer.
The only way i use the phone now is with a 3rd party voip/google voice app. Calling via google voice directly without the 3rd party app does not work.
I do not know what is wrong and i will really appreciate any help that you guys can render.
Merry Xmas
I have also re-flashed the stock rom found on this thread via Odin:
http://forum.xda-developers.com/showthread.php?t=2558602
Still, no difference
Did you use the phone on att before you unlocked it (make a phone call)
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How did you unlock the phone?
SaHiLzZ said:
How did you unlock the phone?
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Click to collapse
Nspro
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Text messages work fine.
Somebody please helppppp
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hands0m3 said:
Did you use the phone on att before you unlocked it (make a phone call)
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Click to collapse
Yes,it worked fine then
Need to unlock again with nspro, be sure it say enabling 2G/3G or try another unlocking box
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Restore a working qpst backup and remember to write your own Imei
Take a look if imei is still there?
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I already restored the imei. How do I restore a working qpst? Where can I find one ?
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UPDATE:
I can now make and receive calls by forcing the phone to 2G ONLY.
I am still waiting for anyone who can help me to get the phone calling out and receiving calls over 4G LTE. ...
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Hey go here ask for viper32 he is a guru as well as many others . But I have only worked with viper . He has fixed many of my phones as well as flash to other carriers. Great group of people there really . Just ask someone will help if viper32 doesnt see your post .
http://forum.xda-developers.com/showthread.php?t=2270191
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Thank you
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No problem . Let me know if they get you worked out.
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any news about this? i have one mega with this problem, no backup and unlocked with nspro
Still waiting for HELP
anyone found the fix, I'm in the same boat after unlocking. My imei is changed and now no 4g LTE on data and it takes long time to search for network everytime it starts up
Helppp
wtlam said:
anyone found the fix, i'm in the same boat after unlocking. My imei is changed and now no 4g lte on data and it takes long time to search for network everytime it starts up
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Click to collapse
anybody with a fix on this i'm having the problem please heeeeellppppp!!!!!!!
HELP!!!!!!!
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Manually search networks how?

I live in border area of my state, ,so that is also the border of my telecom operator. Every time I search my home network, after some time it automatically select the roaming network . So please help me. Is any app available for keeping mobile network in manual mode or any other way to prevent searching mobile network in automatically?
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Any solution available in this case or not?
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Rajesh01 said:
I live in border area of my state, ,so that is also the border of my telecom operator. Every time I search my home network, after some time it automatically select the roaming network . So please help me. Is any app available for keeping mobile network in manual mode or any other way to prevent searching mobile network in automatically?
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Click to expand...
Click to collapse
Did u try this?
Merry Christmas!
Smack that thanks button If I helped!
Always make a nandroid backup before trying anything risky.
I do respond to questions (most) via PM.
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Sent from dat small country called Singapore.
P.S. Quote my post for replies ASAP.
Rajesh01 said:
Any solution available in this case or not?
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I don't understand what you said above. If you mean selecting the network then yes I have selected my home network. But it doesn't prevent automatically selection of the roaming network. Sometimes it selects home network, sometimes it select the roaming network and sometimes it shows that the selected network is not available. After all thanks for your reply. Any help in this case!
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No solution in this case?
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