Galaxy S3 Network Bug on reconnect [SOLVED] - Galaxy S III Q&A, Help & Troubleshooting

Hey there fellas,
I tried to find something on the forums regarding this matter, but I found a very annoying bug/habit. I'm currently on InsertCoin 2.3.1 and tried a wide variety of modem firmwares, but when I'm in areas where I have a very bad signal (in the gym's basement, for example), I completely lose connection to my network provider from time to time. Sometimes, when my device is reconnecting, it cannot reestablish a mobile data connection. When this happens, I can't make or receive calls either, even though the signal bar shows a valid connection!
In a nutshell: After losing signal, the device seems to reconnect to the provider network, but not properly. Can't make phone calls, can't send or receive SMS, only indicator for this is the missing mobile data connection icon. Only a restart resolves this problem, but I'm not happy with restarting my phone multiple times a day!
Here are some topics that seem similar to my problem:
http://forum.xda-developers.com/showthread.php?t=1782204&highlight=losing+signal
http://www.samsunggalaxys3forum.com.../1214-losing-connection-cellular-network.html
As I said, I already tried different modem firmwares, always with the same result. Can anybody help me with that matter?
______________________________________________________________
Solution: Check your current CSC and make sure it's set to your specific country!

I have the same issue from when I had stock ICS and now still the same with Jellybean.
Sent from my GT-I9300 using xda premium

Checklist Network,
One enter settings for network APN etc .
Two correct modem for network phone and location .
Three correct CSC for network/area
Four problem on original phone providers rom and modem ???
Five might be worth investigation of RIL .
jje

I have the same issue.. at first I thought it was due to the crappy network provider .. however I tried putting my sim in my old Nokia e5 and got decent signal strength even in areas where the s3 was unable to connect to the network. I faced the same problem even in stock ROM updated to latest version available for my region.
Any help would be much appreciay .
Sent from my GT-I9300 using xda app-developers app

I used to have this problem with my stock ICS rom, exactly the same situation you described. Can't make any call after coming out from a tube.
I9300XXDLJ4 (4.1.1) is all good in reconnecting the signal.
- T-mobile UK

Okay, after a few days of testing and trying to get a bad signal on purpose, it seems that setting up the CSC did the trick for me. After flashing InsertCoin, I had a French CSC. So I switched it to Germany and now the reconnect issues seem to be gone! There is a very handy CSC switching tool for free in the Playstore, but be careful, your ROM must support MultiCSC and switching the CSC wipes your internal memory!

Related

Keep loosing 3G connectivity

Hi,
This might be specific to my provider(Airtel) or city (Bangalore, India) so please excuse me for sending to such a wide audience. But I hope its specific to phone and there is a solution.
I keep loosing my 3g connectivity on this phone. It comes and goes and has now basically become a reliability issue. Most of the times I need to deactivate the data network mode and activate it back.
Has anyone else also noticed this?
It's because where you live 3G service is unstable, same with me also, it goes back to H+.
Regards.
or maybe you should try and change your modem.
try flashing KH1 or KH3, see if it matters..
Thanks for the responses. If its related to network, I guess I don't have a choice. About flashing the ROM, I have not yet rooted the phone and lies is still on KF3, so guess I will wait for the next update and hope things will improve.
I had some similar problems here in The Netherlands... I use a provider that is 'roaming' on another provider's network (for those who are familiar: I use Telfort, which roams on the KPN network).
The current CSC I have in my phone, is a specific CSC for The Netherlands (XENKE1). However, it keeps losing 3G connectivity over time, and I also need to reset the connection to get it back working.
For now I can solve this issue by manually selecting the operator instead of automatic operator selection. You might want to try this, it worked for me at least.
Thanks gscjot. Your solution seems to have worked. In last 20 odd hours I had to manually restart the 3g service only once. So I guess this is actually not a issue with the phone itself but the operator. Thanks a lot.
It might have something to do with the modem or CSC that is in the phone. I am currently on stock 2.3.3 but I tried Darky's rom as well (on 2.3.4). As this ROM has a different CSC, I could leave the network detection on automatic. Only setback then, is that the phone shows 'r' (roaming) on my home network and I have to manually disable 3G when I go abroad.
Best regards,
Gerco
I am using tata docomo connection india when I download anything from market or anywhere else the downloads stop as soon as I stop parallel browsing, so I tried downloading songs while pinging yahoo using pinging app some users are experiencing same problem please help me out
Sent from my GT-I9100 using Tapatalk
Sent from my GT-I9100 using Tapatalk
Many indian users are experiencing this problem
Sent from my GT-I9100 using Tapatalk
gschot said:
I had some similar problems here in The Netherlands... I use a provider that is 'roaming' on another provider's network (for those who are familiar: I use Telfort, which roams on the KPN network).
The current CSC I have in my phone, is a specific CSC for The Netherlands (XENKE1). However, it keeps losing 3G connectivity over time, and I also need to reset the connection to get it back working.
For now I can solve this issue by manually selecting the operator instead of automatic operator selection. You might want to try this, it worked for me at least.
Click to expand...
Click to collapse
Hmm, NL-KPN here with Polish CSC (OXA, don't ask me why, bought it in NL) but I stream internet radio on my way to work in the car for 70 km without losing connection once, and that includes 2 long tunnels.
All stock KG5 with only cf-root.
Still no relief
Sent from my GT-I9100
Hi,
Can anyone on 2.3.4 comment if they see the same issue as mentioned here. I am again back to my struggling ways and starting to believe that is this a software only issue and courtesy SAMSUNG.
Thanks,
Vishal

[Q] GPRS Issues

My Lumia is driving me nuts.
My GPRS connection is not working as it should. I get all the email push updates and all but cannot access web using IE most of the times. Sometimes I can but most of the time i cant. Can anybody help me to solve this problem??
Please help me out guys
This could have a number of reasons. I notice sometimes, that webpages won't load on weak signal strength but push noticifations do work. Another possibility is, that you have some sort of signal loss during the loading of the page. Have you ever tried to reproduce this from a diffrent loaction?
ANother possibility would be a carrier problem. An exchange/test with another sim-card would help in this case.
Do websites work over WIFI?
Where the **** are you that you only get GPRS?
And same as this dude^ web pages might not load if the connection is too slow.
Sent from my SGH-I897 using XDA App
ChrisKringel said:
This could have a number of reasons. I notice sometimes, that webpages won't load on weak signal strength but push noticifations do work. Another possibility is, that you have some sort of signal loss during the loading of the page. Have you ever tried to reproduce this from a diffrent loaction?
ANother possibility would be a carrier problem. An exchange/test with another sim-card would help in this case.
Do websites work over WIFI?
Click to expand...
Click to collapse
I have full signals. I have tried it at various locations. Even different sims (GPRS doesnt work in Lumia) and same sims in different phones (GPRS works in all other phones).
And yes websites work with wifi perfectly

Galaxy S2 Data connectivity problem

Hello everyone! I've encountered a substantial problem with my galaxy s2 and I would like your help, if possible.
This problem is related to the mobile network. Each time I try to connect to a website I get some kind of error, from 'Data connectivity problem' to 'Server failed to communicate' and even the traditional 'Web page not available'.
Note: There are a couple of websites that seem to work, such as: m.orange, m.facebook.com and m.yahoo.com.
At this point I would like to mention that Wi-Fi works as intended, with no problems whatsoever.
As for the mobile network, I believe I have the right settings resembled in the APN settings. Data connection is turned on, and I have tried both GSM and 3G. I have also tried different internet browsers, such as Opera, with the same result: only m.orange, m.facebook and m.yahoo seem to work.
It is quite frustrating at times not to have access to a mobile network. I would like to add that this problem remains to any apps that need a network connection in order to run. Therefore, I cannot run anything (Android Market, Google Maps, Youtube app, etc etc).
Thank you for your time. Please advise!
First of all, double check APN settings, see if your provider has an app in the market, or sometimes you can send an SMS and they'll sms you settings.
Secondly, try another modem, you may have a weak modem, before doing this download speedtest and check your connection speed and post that up. To see hows well it's connecting.
Thirdly, check your operators website to make sure they are not having network difficulties in your area.
Is their a setting that turns standard web pages off because that's what it looks like .
jje
Visit the webpage of your service provider. Usually on their support page you can have their data/mms settings sent to you by sms which then will be "auto-installed" on your phone. Good luck!

Slow internet - But Speedtest results good.

Hi there,
I'm getting a strange issue with internet connectivity on my SGS3.
It's still the stock firmware. However, it's rooted with the Siyah kernel to counter the audio crackle issue.
The problem is the speed. my XDA forum app, gmail and most of all Google Play store time out, yet on speedtest i'm getting 5+mbps down and 2mbps up. The browser performance is ok when this issue occurs, but certainly not 5mbps good. The issue only presents on HSDPA, and is not so bad on WiFi.
Should I flash to a new rom? Is there an issue with Siyah and the stock firmware?
Confused!
The reason why you time out might be due to an unstable internet connection, however I'm not sure how it would affect you through network data.
Sent from my GT-I5800 using XDA App
Please check :
- Is the DNS Server slow?
Try using an App in the market to change the DNS Server to e.g. the Google IP's (8.8.8.8 and 8.8.4.4)
- Does your APN use a proxy? (Is it required?)
Maybe the proxy-server is overloaded. An alternative for testing is to use a VPN
- When the issue appears; does it go from H/H+ to 3G and then back to H/H+? Or are there extreme changes in signal bars?
That means you've been moved to another antenna or receiver on the same antenna. Try another modem.
However take care only to use modems coming from firmwares with the same letter as your firmware has at the 4th-last position
(Eg: BLFB firmware requires BLFB modem or newer)
My timeout issue (with which I've been plagued at the beginngin) got far better when I removed the Proxy in the APN settings and disappeared on BLFB -based firmware (Omega 8.0/8.1) with the asian DXLF3 modem.
d4fseeker said:
Please check :
- Is the DNS Server slow?
Try using an App in the market to change the DNS Server to e.g. the Google IP's (8.8.8.8 and 8.8.4.4)
- Does your APN use a proxy? (Is it required?)
Maybe the proxy-server is overloaded. An alternative for testing is to use a VPN
- When the issue appears; does it go from H/H+ to 3G and then back to H/H+? Or are there extreme changes in signal bars?
That means you've been moved to another antenna or receiver on the same antenna. Try another modem.
However take care only to use modems coming from firmwares with the same letter as your firmware has at the 4th-last position
(Eg: BLFB firmware requires BLFB modem or newer)
My timeout issue (with which I've been plagued at the beginngin) got far better when I removed the Proxy in the APN settings and disappeared on BLFB -based firmware (Omega 8.0/8.1) with the asian DXLF3 modem.
Click to expand...
Click to collapse
Thank you so much for your quick response!
I've added the DNS app. Hopefully I get some good results. I'm on Australia's "premium" network, but have noticed that lately in the last 6 months or so, their performance vastly slipping. Mostly due to congestion from people migrating from other networks.
The reception is always full. Even in lifts, so that's a bonus. It's just that their throughput is a little dicey in peak times. During the lunch period in the central business district, i'm lucky to get a google search to load.
There is no proxy settings in the APN. So i guess congestion might very well be the case. I was just confused as the speedtest showed that the speed was pretty good..
Thanks again for your quick and helpful response!

Mobile Data - No LTE on ROMs

Hi all,
Thanks for taking a moment to see if you can help me out! I haven't been on the forum in a long time as I haven't had my Android devices going, but I'm back! (Older, and I wish wiser!)
I am flashing a few different custom roms to my SPG771 (karin), but even though it's recognizing the SIM card, the network is appearing, and the APN details look correct, I don't get any mobile network data transfer when off WiFi, I can't even get it to show 4G/LTE in the top bar beside the data strength bar.
Anyone experiencing anything similar with regards to cellular data on custom roms?
Thanks in advance for your help!
I should note, the data is working perfectly fine on the stock images from Sony, either using the nordic general or the UK custom.

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