Hello guys. I recently got my new sim card (4G compatible), but I can't get any signal when I switch to LTE mode. I've read a lot of posts online, tried many things, but no luck so far. I'm in 4G area, tried the sim card on my friends phone and it worked immediately. The LTE (recommended) option is selected in Mobile network settings. Also tried turning Airplane mode on/off, but that didn't help either. I attached a screenshot from the hidden menu.
I hope someone could help me fix this problem. Thanks!
I just solved the problem by flashing newer modem "Modem-D802-30B-EUROPE-OPEN.zip".
Link to the thread
Related
First, let me say I searched threads and forums looking for someone who had same problem and could not find any posting similar. The only one I found that similar was about the APN. I created a new APN using the settings I found in that thread, but it has not helped at all.
Got a pop-up/update message on phone yesterday about upgrading to ICS. I was running a stock HTC Amaze - not rooted - on Simple Mobile, and it was working great.
Upgraded phone to ICS OTA and love the new interface but having two problems, even after setting up the phone to run on the Simple network.
1. Phone is slow and will only run/display 2G whereas it used to be fast and say 4G.
2. Wifi tethering seems to be gone as it will not allow a tethered device to go to the page requested. (I have found threads about how to address this issue, so it is not a big concern like to 2g/4g speed issue.)
3. My android smiles are gone now......all I have are normal smiles. :-(
Any suggestions on what to do would be GREATLY appreciated.....
under mobile network settings, set your network mode to wcdma only.
I don't know much about the tethering issue, been on custom roms for a while, but apparently its a paid feature now. unlock your phone and install a custom rom, and you wont have that issue anymore
Could be a bad flash, though it doesn't really sound so, just sounds like they restricted a few things on other networks.
Fixed and working great....thanks sent to both who posted replies!!!!
Glad to see you got it fixed. If you don't get MMS, make sure you change your APN to the Simple Mobile APN. T-Mobile and Simple Mobile has slightly different APN settings.
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?
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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!
I have the following situation:
I live in Cuba, and my phone is operating on CUBACEL, the Cuban celphone company. This is a 2G network. While it has CUBACEL sim inside and the Wifi interface is active, it seems to stop working. At least within the 2.4 Ghz band. It simply does not detect any network whatsoever.
If I insert other micro-sims, like one from AT&T USA (3G), the phone wifi starts working, and it detects all networks. Another curious thing is that it will not detect any network if it does not have any sim inserted.
Does anybody out there have any idea of what might be the cause of this behavior and how could it be fixed?
Best regards to all,
Zedd.
zeddicus71 said:
I have the following situation:
I live in Cuba, and my phone is operating on CUBACEL, the Cuban celphone company. This is a 2G network. While it has CUBACEL sim inside and the Wifi interface is active, it seems to stop working. At least within the 2.4 Ghz band. It simply does not detect any network whatsoever.
If I insert other micro-sims, like one from AT&T USA (3G), the phone wifi starts working, and it detects all networks. Another curious thing is that it will not detect any network if it does not have any sim inserted.
Does anybody out there have any idea of what might be the cause of this behavior and how could it be fixed?
Best regards to all,
Zedd.
Click to expand...
Click to collapse
Hi Zedd,
I've been struggling with this for a while now and today I finally found the solution. What happens is that Cubacel has the wrong country code on the SIM cards. What you have to do is change this on the phone. You can easily get this fixed following this great tutorial:
http://forum.xda-developers.com/showthread.php?p=21406675
After installing this app and removing the power saving mode it worked like a charm for me.
To remove power saving mode dial *#0011# and then in advanced choose Wifi. There turn of Power Save.
Hope this helped!
Best wishes.
Hello everyone
I had a Generic Android Phone running 4.1.1 (Myphone a848g)( a Filipino brand) and is MT6577Soc .. Dual Sim support.. Rooted Stock Rom.
Now my problem is about my signal on a specific network. When I set the network mode to wcdma only and turn on my mobile data , and after 3-7 seconds of inactivity , the signal of the two sims lost or signal restarts like that on newly boot . I tried removing the sim2 but still persist. And Note we had Good Signal on our location and the problem is not on our mobile carrier because I had tested on other phones.
And I also not like wcdma preffered because I am fan of downloading..
This Can be temporary solved if I will ping any sites on Terminal Emulator but it is quit tasking and eats battery much.
This also can be solved by changing a custom rom running 4.2.2 .. But I really cant leave the feature of my stock Rom especially the TV out.
Please Can anybody help me to solve this signal bug issue..
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.