S3 Signal Issue - Galaxy S III Q&A, Help & Troubleshooting

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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Related

Data reconnect problem.

Hello guys,
I am having a weird problem,my data (2g 3g) won't reconnect after using wifi.
The data icons disappear and I have to switch to airplane mode or reboot to solve the problem.
I already called the service provider for my network but they said that nothing wrong from there side.
Anyone have similar problem or know how the solve it.
Ps I had this issue with my original firmware 62 and all other firmware 67 73.
No one???
Isnt this an ICS bug?
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JoelChrist_ said:
Isnt this an ICS bug?
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Click to expand...
Click to collapse
LOL ICS wasn't out for our device on the 4th April! :laugh:
Yeah it was on GB but I solve it by trying different firmwares and only one doesn't have this bug.
And now its repeated on ics for some users but not for me
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[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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Why is my WiFi so slow at work?

It Works ok if im less than 5 meters away from server. But anything over that and its unusable. I work about 10 meters from the server. And I get at least 2 - 3 bars of signal out of 4. And I can't even post a comment on here. The speed is very fast for about 30 seconds and then ridiculously slow. It also struggles to connect. Tries about 3 or 4 times before it connects. I'm running cm10 on s3 but have this problem on stock, omega and checkrom. I had simular problems with the s2 aswell but not s1. I don't want to use wifi kill as its my work and it might not solve the problem. Is this the s3 working on networks with multiple apns? Is there a code I can call to turn off power saving ?? Can't force to 5ghz either.
Some advice would be massively helpful. I am getting very frustrated.
Thanks in advanced
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Any ideas anyone?
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Problem on two phones points to the location more than the phone .
jje
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What could be the problem?
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It worked fine on sgs. And worked OK on s2 stock
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3G problem.

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
Click to expand...
Click to collapse
I have already selected the correct operator. Problem is with my phone not the operator.
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Signal issues?

Loving my Mega but I am getting alot of signal drop, could it be a setting or phone issue, hoping there is something I can change as I don't want to send my phone back...... any help appreciated
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More details on which one you have.... Carrier and such would be a good start
2SHAYNE
GT-I9205 Orange/ee network, signal drop is becoming more regular?
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Many seem to experience this signal issue, me too. I have the i9205 international version. Tele2 network in Sweden/Sthlm. Its not always bad, but signal is significantly lower than the note 1 and note 2 I had before, most of the time. Still data and phone calls work good. Not too often I lose signal completely though, but more often than other models in same area.
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I am losing signal completely with no texts or calls coming through........ it must be the phone, never had a problem with original note
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