No mobile network but still able to use data - Galaxy S III Q&A, Help & Troubleshooting

Hi
Really weird problem my s3 has Been working fine until I woke up this morning and it is showing no mobile network but allows data connection still but not able to make any calls.
I am on standard BLG8 ROM and LH1 modem stock and not rooted
View attachment uploadfromtaptalk1345616045347.jpg
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And you're not connected to wifi?
I suggest removing and reinserting the battery and SIM.
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I'm at work so got no WiFi. Will try taking out the battery and SIM and try again thanks
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Right I turned it off took the SIM out booted back up without SIM the rebooted again with SIM but the signal still keeps dropping off I only get signal for a few seconds. I normal get really good signal where I am. Also battery is dropping quicker then normal I guess that's down to searching for signal though
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I have asked a few people around my area and it seems to be a problem with orange UK
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bginders said:
I have asked a few people around my area and it seems to be a problem with orange UK
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Click to collapse
orange/t mobile are doing quite a bit of network repairs and upgrades at the moment ahead of 4g, so that may account for it, try going networks and selecting t mobile, always get better signal like that here

bginders said:
Hi
Really weird problem my s3 has Been working fine until I woke up this morning and it is showing no mobile network but allows data connection still but not able to make any calls.
I am on standard BLG8 ROM and LH1 modem stock and not rooted
View attachment 1275018
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Click to collapse
I had this Exact problem last night!!!! I was on orange, unlocked it, put in my o2 contract SIM, and the exact same thing happened. works well with a 3 SIM card just not O2. So now I have a SIM card full of mins and texts to use , but I can't use it!

slaphead20 said:
orange/t mobile are doing quite a bit of network repairs and upgrades at the moment ahead of 4g, so that may account for it, try going networks and selecting t mobile, always get better signal like that here
Click to expand...
Click to collapse
Thanks for the information that clears it up for me
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Related

[Q] Problem with Vodafone (India) Internet

I have Vodafone Sim in my mobile it gives 6 months 1gb Internet for free..This is 2nd month for me and from Morning it is giving Edge speed but not 3G speed (H/H+/3g).When I switch off my mobile and restart it than it gives 3g speed or swift to Flight Mode and stay for few minutes and than switch off Flight Mode but once I switch off the Mobile Internet and switch it on it goes back to Edge..I thought I did something wrong with settings and did a Factory reset still same problem...What do you think is it a setting problem and Service Provider Problem?
Ask Vodafone on their twitter ac.
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ithehappy said:
Ask Vodafone on their twitter ac.
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Click to expand...
Click to collapse
I did 2 hours back still no reply
Raviteja_HYD said:
I did 2 hours back still no reply
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Click to collapse
They will if you have provided your no. They always communicated with me, didn't miss a single time.
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ithehappy said:
They will if you have provided your no. They always communicated with me, didn't miss a single time.
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Click to expand...
Click to collapse
I am sure they know my number already Because I gave it to them more than 3 times to activate the 1gb Offer and few days back other reasons (Keep getting a Refreshing Sim) but I didn't answer there call I was busy....They always reply to me so late and it make me MAD!

LFB network bug

I've recently noticed a weird network bug on LFB. If the phone loses signal (on subway etc.) with data on, when signal is available it acts as though the SIM was refused by the network continuing to display Emergency calls only. If I turn data on and off it gets weirder (see screenshot).
The only way to fix it is too reset the radio, with flight mode, or *#*#4636#*#*
It's definitely not a hardware fault since, as you can see it still can connect to the network. It just acts as though the connection was refused (or alternatively does something weird that causes it to ACTUALLY be refused)
Anyone else experienced this??
The phone is an original BTU using unmodified LFB on China Unicom
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Are you able to set/receive calls or send/receive SMS? What about USSD codes to your provider?
I've already read about other users complaining about this issue, I guess it's a software-bug in the display.
No. I'm not sure if HSDPA will work in the example pictured. I was in a hurry to make a phone call so just quickly snapped the screenshot then reset the modem.
Messages will get service unavailable. Incoming ones don't get received until I reset
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LFB is a poor modem firmware .
jje
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esist said:
I've recently noticed a weird network bug on LFB. If the phone loses signal (on subway etc.) with data on, when signal is available it acts as though the SIM was refused by the network continuing to display Emergency calls only. If I turn data on and off it gets weirder (see screenshot).
The only way to fix it is too reset the radio, with flight mode, or *#*#4636#*#*
It's definitely not a hardware fault since, as you can see it still can connect to the network. It just acts as though the connection was refused (or alternatively does something weird that causes it to ACTUALLY be refused)
Anyone else experienced this??
The phone is an original BTU using unmodified LFB on China Unicom
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Click to expand...
Click to collapse
Yes, I've experienced the same thing a couple of times since LFB on carrier Telia in Sweden.
It reminds me of the phone/modem problems with the SGN which they never fixed before I sold it.
/Per
JJEgan said:
LFB is a poor modem firmware .
jje
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Click to collapse
2nd that, flashed the lf2 modem and all my problems with the modem radio
Went away
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Does the DXLF3 modem work with LFB and if so, is anyone able to post a link plz?
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Simmo3D said:
Does the DXLF3 modem work with LFB and if so, is anyone able to post a link plz?
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Click to expand...
Click to collapse
About four threads down from this is a thread titled "Modem collection" But I guess it's tricky to find:
http://forum.xda-developers.com/showthread.php?p=28033523
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Where do people still lose signals on a subway?
Deusdies said:
Where do people still lose signals on a subway?
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Click to collapse
New York City!
Deusdies said:
Where do people still lose signals on a subway?
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Click to collapse
Melbourne Australia too.
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Anyone recommends a modem to flash on the XLFB rom? I am also having problems.
Deusdies said:
Where do people still lose signals on a subway?
Click to expand...
Click to collapse
London
Deusdies said:
Where do people still lose signals on a subway?
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Click to collapse
Washington D.C. has no GSM coverage inside the tunnels. Only some stations have coverage. Only Verizon and Sprint with CDMA devices have service on moving trains.
juliano_q said:
Anyone recommends a modem to flash on the XLFB rom? I am also having problems.
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Click to collapse
You can flash DXLF3.. It works so much better than the LFB radio.
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Deusdies said:
Where do people still lose signals on a subway?
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Click to collapse
Beijing.
Well 2G is okay. But it sometimes will lose it briefly in the transition from 2g to 3g.
Only Beijing subway line 4 has China unicom WCDMA coverage. the others are limited to 2g at best (except the overground lines, but even they are patchy)
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Simmo3D said:
Does the DXLF3 modem work with LFB and if so, is anyone able to post a link plz?
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Click to expand...
Click to collapse
Dowload omega files from the market and choose modem to download.
Install zip from recovery
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Having updated to the stock LFB ROM and modem (UK, unlocked, unrooted), I'm really perplexed about the behavior of the phone data reception:
(a) 2 weeks ago, I tried using data connection in a friend's flat in Balham (London), could not get ANY data connection all weekend.
(b) Last weekend, data was consistently perfect and fast anywhere in the same flat, all "H+" 8Mbit and lovely.
(c) This weekend, same place but NO reception again, not a saussage. Voice phone worked fine, just no data at all.
And, yes, I've seen "emergency calls only" sometimes even when there is apparently a strong signal.
Back home again (Portsmouth), phone works fine.
On the plus side, battery consumption is wonderfully low!
Can anyone explain what's going on? It feels like the data connection is sometimes reluctant to "log in" or whatever is does! It seems to have a mind of it's own.
Thanks!
You may want to try another modem like DXLF3. It has better data network stability especially in cities or areas with faint signal.
I am planning to upgrade to the LFB, but i am not rooted. Want to be sure if i have problems with the modem signal, do i have to be rooted to install the new modem driver??
Thanks in advance...

Orange/EE

i recently got a text from orange saying that i was now on EE and when i restarted my phone, It would display the EE. So i restarted my phone and it didnt display EE. So i decided to go back to the samsung stock rom and it displayed the EE network then but i wasnt to happy with stock so i decided to install cm10 nightly, but now it wont display EE on my phone it just displays T-Mobile.
Im completely baffled about this, Any idea's on why this is? and how to change it ?
It musnt display on custom roms.Im in the same boat....but I dont care.
Its the same with network selection.There is no "option" to use t-mobile orange-only t-mobile or orange.
I had the same text from Orange UK.
I have been running CM10 nightlies for about the last 3 weeks.
Upon restarting my phone after receiving the text, I have been on EE for about a week. I don't know if this info helps. I may just be pointing out that EE network is OK with CM10.
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blde99 said:
I had the same text from Orange UK.
I have been running CM10 nightlies for about the last 3 weeks.
Upon restarting my phone after receiving the text, I have been on EE for about a week. I don't know if this info helps. I may just be pointing out that EE network is OK with CM10.
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Click to collapse
Is it faster? I got orange contract sim but using o2 at mo.
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Had the same from T-mobile but it worked for me. Restarted phone and I'm now on the EE network and I'm running a custom rom.
stevendeb25 said:
Is it faster? I got orange contract sim but using o2 at mo.
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Click to collapse
Doesn't seem to be any faster. Did a speed test and got about 1.1Mbps up and down.
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No Network Coverage - Res Remix Rom

Installed res remix two days ago it was working fine network coverage seemed fine... then I woke up and I had emergency calls only no signal... Tried re-flashing didn't help. Tried a stock rom and it still didn't work.. simcard works fine in friends phone, and a simcard on the network Three works fine in my phone :/ so i'm abit lost at what to do, I'm pretty new to all of this so please ignore my stupidity lol
I think it has something to do with the baseband or modem
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Varcolac said:
I think it has something to do with the baseband or modem
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Click to expand...
Click to collapse
i've tried different modems and the phone works on a different network sim would that still cause it
Search the thread for a modem of your region and try a few till you get one to your liking. Takes a while for the phone to get 'used' to a new modem so even if it isn't the best at first, the signal tends to improve after about a day or so. I have never encountered problems with signal but I hope this helps
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Varcolac said:
Search the thread for a modem of your region and try a few till you get one to your liking. Takes a while for the phone to get 'used' to a new modem so even if it isn't the best at first, the signal tends to improve after about a day or so. I have never encountered problems with signal but I hope this helps
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tried that mate.. i've got the KH3 modem on and it's apparently best for the UK and my network :/
thelor said:
Installed res remix two days ago it was working fine network coverage seemed fine... then I woke up and I had emergency calls only no signal... Tried re-flashing didn't help. Tried a stock rom and it still didn't work.. simcard works fine in friends phone, and a simcard on the network Three works fine in my phone :/ so i'm abit lost at what to do, I'm pretty new to all of this so please ignore my stupidity lol
Click to expand...
Click to collapse
I've used RR. I did however experienced this but I waited for almost 30 mins before I got my signal back.
thelor said:
tried that mate.. i've got the KH3 modem on and it's apparently best for the UK and my network :/
Click to expand...
Click to collapse
You could try xxlpq/s/x.
natsn horsley
theunderling said:
You could try xxlpq/s/x.
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Click to collapse
Tried them mate... at the moment the phone is working fine.... with THREE network but means i can't use my old sim which was just topped up

Signal Problems and others

Hey guys, I'm getting an error code 65535 class 3 whenever I try to text, and a radio failed when I try to place a call. I'm running sense 5 (hatka) and I already confirmed that it's not the rom. Please help, I'm on a trip in new York so I really need this (this all randomly happened so I don't think I did this)
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Re: Texting error
Halcyon7 said:
Hey guys, I'm getting an error code 65535 class 3 whenever I try to text. I tried a dirty flash and flashed vvm fix for sense 5 but it doesn't work. Any suggestions?
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Click to expand...
Click to collapse
Make sure your on the right build (I.e gsm, global, etc.)
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Yeah, I'm using the correct version. I checked and everything. Odd thing is that yesterday it was working just fine. I woke up this morning and my signal would drop in and out like crazy and I would go for about 3 minutes without signal before I'd get a bar (usually i have 3 to 5)
Here are some pictures (not sure if it would help or not)
(also I'm in New York on a trip so no laptop)
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Re: Texting error
Halcyon7 said:
Yeah, I'm using the correct version. I checked and everything. Odd thing is that yesterday it was working just fine. I woke up this morning and my signal would drop in and out like crazy and I would go for about 3 minutes without signal before I'd get a bar (usually i have 3 to 5)
Here are some pictures (not sure if it would help or not)
(also I'm in New York on a trip so no laptop)
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Click to collapse
Either bad SIM (my first guess) or signal issues in the area (unlikely) hit up a store and swap out your SIM.
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Re: Texting error
Hmm, I took out my sim and put it back in and it gave me full bars, I can get texts (rarely), and I can get very little Internet when connected (not wifi) I don't want to take my phone to Verizon because I'm running a custom rom and they'll see it and probably want to make me pay for a new one.
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Halcyon7 said:
Hmm, I took out my sim and put it back in and it gave me full bars, I can get texts (rarely), and I can get very little Internet when connected (not wifi) I don't want to take my phone to Verizon because I'm running a custom rom and they'll see it and probably want to make me pay for a new one.
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Click to expand...
Click to collapse
don't go by the bars....go by the dbm...whats that showing?
Re: Texting error
I'd run an RUU and see what it does, don't sweat the bars and if that doesn't fix it just give it a day or two. You can always run the RUU can call verizon and have them send you another SIM card.
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Re: Texting error
My signal
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Re: Texting error
When it spiked
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According to both Verizon and HTC, there was a known issue with the phone software and not being able to read the SIM card. It happened to mine about ten times every week until an update was released to supposedly fix it in February. I still get the error from time to time, but far less than I did previously. If you've rooted and flashed a ROM prior to February, I would suggest making a backup and restoring the phone back to stock. Once you've done this, do the update to the new firmware and then reroot and restore from your backup. This should, I think, fix most SIM issues.

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