Hi guys
I have problem after rooting DHD with AAHK with gprs/EDGE data and 3G data. GSM works fine, WiFi, GPS also but I cannot turn on data over mobile network. Tried different ROMs, flashing different radio versions, return to stock rooting again and still nothing. Tried to change APN settings, pull off the battery also but no luck. Also I tried with *#*#4636#*#* to switch radio off no luck. Is there any way that I can troubleshoot this to find out what is causing the problem. My radio version is
12.56.60.25U_26.10.04.03_M
Sabsa Prime V8.0 - tried CM7.2, stock, Revolution HD, Jelly Time, Pacman Jelly... no luck
Thanks in advance for any help
I think the problem is with your APN settings. Something like this happened to me recently and it was because my APNs were messed up. Try this app to save your APNs. Maybe there's some error in what you're manually entering. I see no other reason as to why your mobile data shouldn't work on any ROM, especially if you're getting a signal.
sashank said:
I think the problem is with your APN settings. Something like this happened to me recently and it was because my APNs were messed up. Try this app to save your APNs. Maybe there's some error in what you're manually entering. I see no other reason as to why your mobile data shouldn't work on any ROM, especially if you're getting a signal.
Click to expand...
Click to collapse
Thanks on your reply. I found that the problem was with my operator, because they disabled the data service for my account. I thought that problem is with my phone but it was on their side. Thanks again
Related
I have now tried several of the latest roms and I cannot get data network/apn network on my phone. Seems something has been removed.
Wifi works great but not data.
For example it worked fine in defrost 2.3, but it does not work in 2.4d. What was changed? Also tried leedroid, opendesire and issue is the same.
This is a call out to all devs ... please fix as phone is pretty much useless without data/apn network.
I love your work on these rom, so i hope you can fix this also....thx
Update:
Using latest radio.
Tried manual APN settings from ISP.
Tried *#*#INFO#*#* and changing network type (WCDMA, GSM, auto etc.)
Tried every possible wipe.
My network is fine... I'm from Denmark, and i'm Ising CyanogenMod...
Sent from my Desire using XDA App
thefox1102 said:
I have now tried several of the latest roms and I cannot get data network/apn network on my phone. Seems something has been removed.
Wifi works great but not data.
For example it worked fine in defrost 2.3, but it does not work in 2.4d. What was changed? Also tried leedroid, opendesire and issue is the same.
This is a call out to all devs ... please fix as phone is pretty much useless without data/apn network.
I love your work on these rom, so i hope you can fix this also....thx
Click to expand...
Click to collapse
The Leedroid rom APN list has been fixed, but the uploaded zip was corrupted. Expect a new upload with working APN list when leedroid wakes up and discovers what has happened
Hi Everyone,
My Phone:
Lt15i
Baseband 70
Stock kernel with CWM
Arconium ICS
My Problem:
After going to a custom rom and kernel from a complete stock setup I cannot get a data conection on my phone. All other features work perfectly (Call, sms, wifi etc) just no 3g/2g data connection, or icon in the status bar. the Settings menu indicates it is turned on.
I have exhausted all available options regarding kernel/rom troubleshooting including a complete reinstall on the above rom/kernel. I also experienced this problem with other roms and kernels.
During setup I follow the setup app and download the apn settings for Crazy Johns (my carrier) and they report as being installed.
My question:
If anyone who is using Crazy Johns currently and has it working could please post their apn settings (text or screen shot whatever is easier) so I can compare these to mine and change as necessary.
Any and all suggestions for fixing this are welcome.
ajgftw said:
Hi Everyone,
My Phone:
Lt15i
Baseband 70
Stock kernel with CWM
Arconium ICS
My Problem:
After going to a custom rom and kernel from a complete stock setup I cannot get a data conection on my phone. All other features work perfectly (Call, sms, wifi etc) just no 3g/2g data connection, or icon in the status bar. the Settings menu indicates it is turned on.
I have exhausted all available options regarding kernel/rom troubleshooting including a complete reinstall on the above rom/kernel. I also experienced this problem with other roms and kernels.
During setup I follow the setup app and download the apn settings for Crazy Johns (my carrier) and they report as being installed.
My question:
If anyone who is using Crazy Johns currently and has it working could please post their apn settings (text or screen shot whatever is easier) so I can compare these to mine and change as necessary.
Any and all suggestions for fixing this are welcome.
Click to expand...
Click to collapse
tried hitting up there web site and getting them sent to your device manualy?
PVy.
pvyParts said:
tried hitting up there web site and getting them sent to your device manualy?
PVy.
Click to expand...
Click to collapse
Yeah, tried getting it sent to me, entering it in manually, even tried entering various variations of it I had found on the net. Still no connection.
Everything worked perfectly when it was stock, and when i first flashed a new rom onto the phone (arconium 8.2 i think) it worked then too. but every rom since it hasn't.
I'm still quite new to this and my knowledge isnt too deep yet.
Could flashing roms or kernels effect the serial numbers of my phone or something and now my carrier doesn't recognize my phone?
I do still receive calls and sms...
It's got me beat!
ajgftw said:
Yeah, tried getting it sent to me, entering it in manually, even tried entering various variations of it I had found on the net. Still no connection.
Everything worked perfectly when it was stock, and when i first flashed a new rom onto the phone (arconium 8.2 i think) it worked then too. but every rom since it hasn't.
I'm still quite new to this and my knowledge isnt too deep yet.
Could flashing roms or kernels effect the serial numbers of my phone or something and now my carrier doesn't recognize my phone?
I do still receive calls and sms...
It's got me beat!
Click to expand...
Click to collapse
Hmmm I think you phone is fine must be just the settings.
What does it say? Any errors? Can you grab a log too see if it says something there. Check my Sig for how to get logs etc.
Pvy
Sent from my LT18i using xda premium
Solved....Hopefully.
pvyParts said:
Hmmm I think you phone is fine must be just the settings.
What does it say? Any errors? Can you grab a log too see if it says something there. Check my Sig for how to get logs etc.
Pvy
Sent from my LT18i using xda premium
Click to expand...
Click to collapse
Well props to you, you were right in suggesting it was settings related. I tried a different sim card from a different carrier and after following the setup procedure I had a 3g data connection. This of course means the problem lies with my sim card/carrier settings and not the rom or kernel.
* Unfortunately, I'm having the same problems with this ROM on HSDPA that I was having on aeroevan's ROM. GSM is found immediately on boot, however, HSDPA is very flakey. It will succeed in connecting every now and again, but then randomly drops the signal and won't reconnect. I thought maybe I just had a weak 3G signal where I was testing, but I have a BB Bold for work as well and that can easily maintain a 3G connection on the same network. I also had no problem way back in the day with CM7.2, but that ship has sailed .
Also, when the phone is in WCDMA preferred mode, after a while the phone will lose all connections (usually after a reboot but not always), including to GSM and when I go to reselect my network operator I get the message "Error while searching for networks". No matter how many times I reboot the phone or switch to "GSM Only" or "GSM/WCDMA auto" it never lets me again select my network provider.
As I said, I ran into the same problems with aero's port, so its not specific to this ROM.
* Situation are me after uproom (http://forum.xda-developers.com/showthread.php?t=1932573), spent two days lost wave, down to the original room (fullwipe finished down about 2.3.4). So lose the 3G network always in global mode (global), 3G users they will never be, but 2G ok (you spend vina sim and have installed APV vina). The physician who has experience helping hand factories. Thank a lot.
I don't known?
I do not understand.Specific guidance for me? please!
nabin229 said:
I do not understand.Specific guidance for me? please!
Click to expand...
Click to collapse
Aeroevan's rom? CM9, CM10? Is your radio outdated? What carrier are you on? More info = more help.
nabin229 said:
Situation are me after uproom (http://forum.xda-developers.com/show....php?t=1932573), spent two days lost wave, down to the original room (fullwipe finished down about 2.3.4). So lose the 3G network always in global mode (global), 3G users they will never be, but 2G ok (you spend vina sim and have installed APV vina). The physician who has experience helping hand factories. Thank a lot.
Click to expand...
Click to collapse
BTW, I don't understand this part.
I would suggest reading through the entire thread of Aeroevan's rom that you were describing as well as the Global CM9 thread. During your reading you may find and answer in there. I have found more answers that way than waiting on someone to direct me there anyway. That is all the advice I can provide with my limited knowledge.
Help me
ThePhantom97 said:
Aeroevan's rom? CM9, CM10? Is your radio outdated? What carrier are you on? More info = more help.
BTW, I don't understand this part.
I would suggest reading through the entire thread of Aeroevan's rom that you were describing as well as the Global CM9 thread. During your reading you may find and answer in there. I have found more answers that way than waiting on someone to direct me there anyway. That is all the advice I can provide with my limited knowledge.
Click to expand...
Click to collapse
I installed your room ( {Rom}{ICS} Official Global CM9), after 2 days my phone is not network. I reinstall the original room 2.3.4 but only use 2G when I used dataroaming; completely unusable 3G & network global mode always (I fullwipe data before reinstalling room 2.3.4 & APN properly installed).I then set your room again, but as I said above condition.Please help me how to be able to use 3G
because my phone is example:
Unfortunately, I'm having the same problems with this ROM on HSDPA that I was having on aeroevan's ROM. GSM is found immediately on boot, however, HSDPA is very flakey. It will succeed in connecting every now and again, but then randomly drops the signal and won't reconnect. I thought maybe I just had a weak 3G signal where I was testing, but I have a BB Bold for work as well and that can easily maintain a 3G connection on the same network. I also had no problem way back in the day with CM7.2, but that ship has sailed .
Also, when the phone is in WCDMA preferred mode, after a while the phone will lose all connections (usually after a reboot but not always), including to GSM and when I go to reselect my network operator I get the message "Error while searching for networks". No matter how many times I reboot the phone or switch to "GSM Only" or "GSM/WCDMA auto" it never lets me again select my network provider.
Ok, I don't know if anyone else is having the same problem as you. I hope I don't offend you but I am going to take a guess and say that english is not your first language as some of that is difficult for me to read and completely understand. From what I am gathering is you can connect to your carriers network but only on a temporary basis. Here are the steps I followed to connect to Verizon's network using {10-25-2012}{Rom}{ICS} Official Global CM9 - After a full wipe and clean install and after initial setup I went to (doing this from memory as I don't have it installed at the moment) Settings --> More --> Mobile Networks --> chose CDMA w/EVDO --> Exit out of settings and rebooted. When the phone booted up it recognized the Verizon network and all service and data was all working, I didn't have to change the APN settings at all. If you are still having trouble staying connected I suggest you check the version of radio you are using and consider updating it. Here is the radio thread: http://forum.xda-developers.com/showthread.php?t=1134451 I don't think I am the best person to assist you but just telling you what I would do if I were in your situation.
3G disconnect, only use 2G (GSM). Help me!
ThePhantom97 said:
Ok, I don't know if anyone else is having the same problem as you. I hope I don't offend you but I am going to take a guess and say that english is not your first language as some of that is difficult for me to read and completely understand. From what I am gathering is you can connect to your carriers network but only on a temporary basis. Here are the steps I followed to connect to Verizon's network using {10-25-2012}{Rom}{ICS} Official Global CM9 - After a full wipe and clean install and after initial setup I went to (doing this from memory as I don't have it installed at the moment) Settings --> More --> Mobile Networks --> chose CDMA w/EVDO --> Exit out of settings and rebooted. When the phone booted up it recognized the Verizon network and all service and data was all working, I didn't have to change the APN settings at all. If you are still having trouble staying connected I suggest you check the version of radio you are using and consider updating it. Here is the radio thread: http://forum.xda-developers.com/showthread.php?t=1134451 I don't think I am the best person to assist you but just telling you what I would do if I were in your situation.
Click to expand...
Click to collapse
my phone 3G is disconnect, only use 2G (GSM) , rom 2.3.4 Verizon, radio 1.09.01.0312. *I'm from Vietnam, I speak English not good, sorry.
nabin229 said:
my phone 3G is disconnect, only use 2G (GSM) , rom 2.3.4 Verizon, radio 1.09.01.0312. *I'm from Vietnam, I speak English not good, sorry.
Click to expand...
Click to collapse
No need to apologize m8. Hopefully someone more advanced than myself can assist you with your issue. I am sorry that I couldn't be of more assistance.
Trouble with wifi/3G
ThePhantom97 said:
Ok, I don't know if anyone else is having the same problem as you. I hope I don't offend you but I am going to take a guess and say that english is not your first language as some of that is difficult for me to read and completely understand. From what I am gathering is you can connect to your carriers network but only on a temporary basis. Here are the steps I followed to connect to Verizon's network using {10-25-2012}{Rom}{ICS} Official Global CM9 - After a full wipe and clean install and after initial setup I went to (doing this from memory as I don't have it installed at the moment) Settings --> More --> Mobile Networks --> chose CDMA w/EVDO --> Exit out of settings and rebooted. When the phone booted up it recognized the Verizon network and all service and data was all working, I didn't have to change the APN settings at all. If you are still having trouble staying connected I suggest you check the version of radio you are using and consider updating it. Here is the radio thread: http://forum.xda-developers.com/showthread.php?t=1134451 I don't think I am the best person to assist you but just telling you what I would do if I were in your situation.
Click to expand...
Click to collapse
I have been having the same problem. Flashed CM10 after full wipe, mobile network (for verizon) is CDMA w/EVDO, tried rebooting and switching and wiping and re-flashing but I have no wifi and bad 3G. When I revert to stock everything is fine. How can I fine the latest radio for CM10, I didn't see any JB in the thread link.
SS823 said:
I have been having the same problem. Flashed CM10 after full wipe, mobile network (for verizon) is CDMA w/EVDO, tried rebooting and switching and wiping and re-flashing but I have no wifi and bad 3G. When I revert to stock everything is fine. How can I fine the latest radio for CM10, I didn't see any JB in the thread link.
Click to expand...
Click to collapse
The latest is the ICS radio .320 it will work on JB roms as well.
Have you guys flashed the new ics firmware?
I'm so fresh you can suck my nits...
I flashed CM10.1 on my S3 and had the same problem as others where data was intermittent. It worked for some time and after one nightly, I lost my IMEI. So I got back to stock, used the procedure with QPST and got back my IMEI. I got back to cm10.1 and unsurprisingly, I had a hard time having data. But worst off, I had a hard time having cell connection anymore, not even voice or sms. Tried AOKP without any luck. Tried different modems, not luck either. Now I went back to stock and still doesn't work. There's something that is not resetted between flash of ROM that keeps messing up my connection. I also found out that only one network provider is ever found, one is Rogers Wireless (I'm with Bell), or one is EXT. But never any other provider is ever found. And also in *#*#4636#*#* under phone info I can'T change the radio band like I can on the phone of my girlfriend.
So there it is. I'm stuck. I don't really want to buy another phone. It is a software issue for sure. But how can we solve that? Is there any way to restore the EFS to factory default? Could it be buried there? What is the ERI? Could it be that? My stock ROm says that it can't get the ERI version.
Any help is welcome.
my stock telus ERI is unavailable but i think thats normal... i have no problems
from what i understand imei and apn settings are the things to check into
24680 said:
my stock telus ERI is unavailable but i think thats normal... i have no problems
from what i understand imei and apn settings are the things to check into
Click to expand...
Click to collapse
IMEI and APN are good. IMEI will get me data, but I can't even get a cell connection now. No radio at all.
whats your radio band set to?
if i set mine to anything but automatic it wont find networks like yours..
*#*#4636#*#* dont work on my telus s3.
i use a different method
*#197328460# then
UMTS > Debug Screen > Phone control > Network Control > Band selection >
Automatic...
beware what you change in here as there is no return to default
24680 said:
whats your radio band set to?
if i set mine to anything but automatic it wont find networks like yours..
*#*#4636#*#* dont work on my telus s3.
i use a different method
*#197328460# then
UMTS > Debug Screen > Phone control > Network Control > Band selection >
Automatic...
beware what you change in here as there is no return to default
Click to expand...
Click to collapse
Neither of the two works. *#*#4636#*#* was working with CM10/10.1 and AOKP. But not with stock. And the one you suggest after is not working either.
But I remember going ot *#*#4636#*#* before flashing stock rom and I wasn't able to selet any band. On my girlfriend's android phone (HTC) I can.
if it were me.. i would try reflashing stock again... after flashing stock do a factory reset thru recovery... seems to help for clean stock setup.
if still no network i would check that band selection is set to automatic.
maybe someone else with more experience would have a better idea.
you mentioned you changed your band selection and now cant change it back.
i dont think flashing stock changes this.
i think that might be your problem.
ifso you first need to fix phone to use *# code... i have no idea why its not working
it works on my stock telus 4.0.4 and 4.1.1
maybe bell blocks from using *#code?
ebfortin said:
I flashed CM10.1 on my S3 and had the same problem as others where data was intermittent. It worked for some time and after one nightly, I lost my IMEI. So I got back to stock, used the procedure with QPST and got back my IMEI. I got back to cm10.1 and unsurprisingly, I had a hard time having data. But worst off, I had a hard time having cell connection anymore, not even voice or sms. Tried AOKP without any luck. Tried different modems, not luck either. Now I went back to stock and still doesn't work. There's something that is not resetted between flash of ROM that keeps messing up my connection. I also found out that only one network provider is ever found, one is Rogers Wireless (I'm with Bell), or one is EXT. But never any other provider is ever found. And also in *#*#4636#*#* under phone info I can'T change the radio band like I can on the phone of my girlfriend.
So there it is. I'm stuck. I don't really want to buy another phone. It is a software issue for sure. But how can we solve that? Is there any way to restore the EFS to factory default? Could it be buried there? What is the ERI? Could it be that? My stock ROm says that it can't get the ERI version.
Any help is welcome.
Click to expand...
Click to collapse
if i were u i would first try your girls sim in your phone and vise versa and if no luck do the qpst instructions to regain LTE not imei .and if u still cant manually find network operator after that i would format both sd cards and odin back to stock rooted and do the imei injection again for the hell of it and the LTE fix ..and stay on stock rooted or 4.1.2 until u get this figured out cause 4.2 builds are gonna have more probs then 4.1...I know u are having cell connect probs and these instructions are for imei and data but it sounds like your out of options....i lost imei once and had to manually inject with qpst and my reception was one bar til i did the LTE fix and it worked awesome..one more thing is my phone will not select a radio band ever unless i manually select my network operator first or i have no sim card in phone..i have also had sim cards crap out for no apparent reason..good luck
edit. my bad i thought your girl also had gs3..maybe the sims are still the same
stuey25 said:
if i were u i would first try your girls sim in your phone and vise versa and if no luck do the qpst instructions to regain LTE not imei .and if u still cant manually find network operator after that i would format both sd cards and odin back to stock rooted and do the imei injection again for the hell of it and the LTE fix ..and stay on stock rooted or 4.1.2 until u get this figured out cause 4.2 builds are gonna have more probs then 4.1...I know u are having cell connect probs and these instructions are for imei and data but it sounds like your out of options....i lost imei once and had to manually inject with qpst and my reception was one bar til i did the LTE fix and it worked awesome..one more thing is my phone will not select a radio band ever unless i manually select my network operator first or i have no sim card in phone..i have also had sim cards crap out for no apparent reason..good luck
edit. my bad i thought your girl also had gs3..maybe the sims are still the same
Click to expand...
Click to collapse
Thanks for your answer. Really appreciated. I've flashed so much time that I don't see the point of doing it again. I also had, at some point, to inject my IMEI and it worked with QPST.
What I find really strange is that a stock reflash doesn't put everything back to when I bought the phone. Funny thing, after the flash, it knew what my Wi-Fi router password was! So obviously there are some part of the config that is not overwritten. Which I find odd.
I also started playing with the service menu and found a lot of settings for the radio band. No luck yet.
ebfortin said:
Thanks for your answer. Really appreciated. I've flashed so much time that I don't see the point of doing it again. I also had, at some point, to inject my IMEI and it worked with QPST.
What I find really strange is that a stock reflash doesn't put everything back to when I bought the phone. Funny thing, after the flash, it knew what my Wi-Fi router password was! So obviously there are some part of the config that is not overwritten. Which I find odd.
I also started playing with the service menu and found a lot of settings for the radio band. No luck yet.
Click to expand...
Click to collapse
Your WiFi password could have been restored by google just like it puts your contact info back.
If you are doing a Odin to stock that should wipe it clean.
stuey25 said:
if i were u i would first try your girls sim in your phone and vise versa and if no luck do the qpst instructions to regain LTE not imei .and if u still cant manually find network operator after that i would format both sd cards and odin back to stock rooted and do the imei injection again for the hell of it and the LTE fix ..and stay on stock rooted or 4.1.2 until u get this figured out cause 4.2 builds are gonna have more probs then 4.1...I know u are having cell connect probs and these instructions are for imei and data but it sounds like your out of options....i lost imei once and had to manually inject with qpst and my reception was one bar til i did the LTE fix and it worked awesome..one more thing is my phone will not select a radio band ever unless i manually select my network operator first or i have no sim card in phone..i have also had sim cards crap out for no apparent reason..good luck
edit. my bad i thought your girl also had gs3..maybe the sims are still the same
Click to expand...
Click to collapse
This thing is so strange. There's only one network that my phone can see now, and it is 302720. Bell is 302610. No other network is visible. And since I'm with Bell, then I can't connect to 302720. I'm in for emergency calls only. That's why I thought it may have to do with radio. But it seems Rogers (302720) and Bell use the same bands. A channel maybe? But this should be all automatic! It's a pretty stupid bug let me tell you!
Maybe a SIM card issue? That would be quite a coincidence that it happen exactly when I'm playing with ROMs...
RUNNERX said:
Your WiFi password could have been restored by google just like it puts your contact info back.
If you are doing a Odin to stock that should wipe it clean.
Click to expand...
Click to collapse
Ah that's a good possibility. I didn't know it was saving passwords as well.
So if it wipes clean, how come this bug stays? There is obviously something that is not wiped and overwritten or else it would work.
How can one tell if someone losses their IMEI number? Unable to make phone calls? No 4g/ lte?
Sent from my SGH-I747 using xda app-developers app
Deggy said:
How can one tell if someone losses their IMEI number? Unable to make phone calls? No 4g/ lte?
Sent from my SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
When you go to info about your phone, in status you usually have your IMEI number. It'll show 0 if it's corrupted. Or sometimes it's a generic IMEI dans is used when the real one is unknown. It's 049 something I think.
Without an IMEI number you can do phone call. But you'll never have a data connection.
My phone started turning on and off its 3g connection. Wifi works solid.
I'm on a good signal area. It's not like the 3g is on and I can't connect in anything.
The problem is that the phone turns on and off. It doesnt fix the 3g connection.
Also, Checkin service it's draining the battery a lot.
Looks like a software problem with Google Play Services and its Connection checking service.
Anybody have seen this problem?
thanks in advance.
Starting to worry right now. Did a factory reset on a flashed V10j KDZ and it didn't change.
TWRPed a 20A Lollipop rooted ZIP and it didn't change. Right now I'm trying to go back stock using LG PC Suite.
I can't understand why this can be a hardware problem because 3G actually works but it keeps constantly getting on/off in ~10 seconds intervals.
Looks like a bad system file that is messing with it.
EDIT: Also, the phone can't search for mobile networks anymore. I just tell it to do a manual search and it can't find anything.
What would this be? Modem file broke? WTH.
alfablac said:
Starting to worry right now. Did a factory reset on a flashed V10j KDZ and it didn't change.
TWRPed a 20A Lollipop rooted ZIP and it didn't change. Right now I'm trying to go back stock using LG PC Suite.
I can't understand why this can be a hardware problem because 3G actually works but it keeps constantly getting on/off in ~10 seconds intervals.
Looks like a bad system file that is messing with it.
EDIT: Also, the phone can't search for mobile networks anymore. I just tell it to do a manual search and it can't find anything.
What would this be? Modem file broke? WTH.
Click to expand...
Click to collapse
I have random disconnects/drops too, Although my 3G/LTE icon never actually goes away, just the signal.
Personally I would suspect your modem as #1 suspect.
Factory reset rarely fixes much, I would try re-flashing the phone.
If KDZ flash doesn't fix it maybe try a tot & dll flash using LG Flash Tools with modified megalock.
It definitely looks like a modem issue BUT it can be a your os. I had issues where my modem wouldn't flash from a stock flash on my S4, But manually flashing my modem would SOMETIMES work, I would have to flash the modem a few times usually before it would actually flash.
I had problems before but it was caused by network. Did you tried with different SIM card from other network?
I have the same problem and couldn´t fix yet... Didn´t try to use another SIM card to check if is a network trouble, but it´s driving me crazy to be without connection and a huge battery draining...
Any other ideas?
viniciuscordeiro said:
I have the same problem and couldn´t fix yet... Didn´t try to use another SIM card to check if is a network trouble, but it´s driving me crazy to be without connection and a huge battery draining...
Any other ideas?
Click to expand...
Click to collapse
Just try with other network SIM. I had same problem long time back with Nokia n96, Motorola defy and some other phones. Some of time it helped to set phone only to use 2g network. That was happening the most of time when i used VIP network in Serbia.
Setting only 2g signal helped sometimes but after changing SIM card, problem was solved.
This problem happen to me without reason and after some time i tried same network again, there was no problems.
Probably a different SIM will correct the problem, because after a lot of trial and error changes I realized that the current Network APN (you can reach going on Mobile Networks inside Connections and Networks [translation] in the Settings) was faulty. I deleted the APNs and made a restore. (Delete and Restore are the only options inside Network APNs).
I imagine that changing SIM cards from another carrier will reconfigure the APNs and probably fix the problem.
I´ve tried a different SIM card and didn´t found any troubles, but when I put mine, the problem come back again... So it´s a problem with my carrier. I´ve deleted the APN settings, restart, restore, restart again and didn´t solve. I´ll call them to check if they are experiencing any network issues.