I am unable to connect to GSM only network ... My N4 while roaming out of city limits doesnot catch GSM signal .. it only works with 3g signal .. I noticed this issue just a week back and it has kept me worried .. Can someone point me to a proper direction with regards to this issue.. I flashed the latest available radio JDQ39E but still no luck.. there is no GSM signal.. My nexus 4 has the latest 4.2.2 rom in it.:crying:
rajivenator said:
I am unable to connect to GSM only network ... My N4 while roaming out of city limits doesnot catch GSM signal .. it only works with 3g signal .. I noticed this issue just a week back and it has kept me worried .. Can someone point me to a proper direction with regards to this issue.. I flashed the latest available radio JDQ39E but still no luck.. there is no GSM signal.. My nexus 4 has the latest 4.2.2 rom in it.:crying:
Click to expand...
Click to collapse
Where are you at? Which network? There are areas (rare but there are) where t-mobile is wcdma (3g) only.
djdanska said:
Where are you at? Which network? There are areas (rare but there are) where t-mobile is wcdma (3g) only.
Click to expand...
Click to collapse
I am in India .. My Provider is Vodafone
Did you figure out this? I am experiencing the same issue on my HTC One. I am able to make Emergency calls, though..
Hi everyone, I'm new in the forum although been following it quite some time.
I have a problem with my i9505. After a trip to Korea my phone hasn't been able to get 3g connection at all in China Unicom network before the trip there was no problems. (I wasn't able to get network in Korea at all btw). Now connection is always with EDGE and GSM only.
Anyways the firmware I have been using is the new (3g connection with this firmware worked fine before the trip)
United Kingdom BTU (September 2013)
PDA: I9505XXUDMH8
CSC: I9505OXXDMHA
Version 4.2.2
After the problem occurred I have done factory reset and cleared cache. Also tried the new german BTU PDA: I9505XXUDMH5, CSC: I9505OXADMH5 Version 4.2.2
Also tried different modems: ZCUCMH1, XXUDMH8 and now it is XUBMGA - none of these work. I can select all LTE/wcdma/gsm and wcdma only, gsm only etc settings from the phone but only gsm or wcdma/gsm works. Other modes don't even find any networks (in Korea it didn't find any networks with any mode)
Factory reset and clear cache was done after every flash.*#0011# shows only GSM 1800 available so for some reason it seems that the phone thinks it is just a gsm phone or does it get it from the network?
Imei code shows up normally in the "about phone" menu and I also called China Unicom operator and they said that they don't even block any imeis so that shouldn't be the problem. Internet also works so the apn settings are ok, just that it is on edge only and doesn't even try to get to 3g.
I also tried the simcard with my friends i9505 and it got working connection with H+ immediately. I tried her working card on my phone and it was still only in gsm/edge mode. Her phone had xxubmga/xxbmg3 software inside so I tried the same modem with no luck.
One thing is that I can't downgrade the phone anymore since I installed the SELinux forced UK stock firmware. Also knox warranty is 0x1 since I cfrooted the phone at one point when I had gps problems. Still even after that the phone has worked normally with the said uk stock firmware for a long time. It seems that the korea network messed the phone up somehow?
Anyways, any tips about how to fix the problems would be greatly appreciated.
Waatu said:
Hi everyone, I'm new in the forum although been following it quite some time.
I have a problem with my i9505. After a trip to Korea my phone hasn't been able to get 3g connection at all in China Unicom network before the trip there was no problems. (I wasn't able to get network in Korea at all btw). Now connection is always with EDGE and GSM only.
Anyways the firmware I have been using is the new (3g connection with this firmware worked fine before the trip)
United Kingdom BTU (September 2013)
PDA: I9505XXUDMH8
CSC: I9505OXXDMHA
Version 4.2.2
After the problem occurred I have done factory reset and cleared cache. Also tried the new german BTU PDA: I9505XXUDMH5, CSC: I9505OXADMH5 Version 4.2.2
Also tried different modems: ZCUCMH1, XXUDMH8 and now it is XUBMGA - none of these work. I can select all LTE/wcdma/gsm and wcdma only, gsm only etc settings from the phone but only gsm or wcdma/gsm works. Other modes don't even find any networks (in Korea it didn't find any networks with any mode)
Factory reset and clear cache was done after every flash.*#0011# shows only GSM 1800 available so for some reason it seems that the phone thinks it is just a gsm phone or does it get it from the network?
Imei code shows up normally in the "about phone" menu and I also called China Unicom operator and they said that they don't even block any imeis so that shouldn't be the problem. Internet also works so the apn settings are ok, just that it is on edge only and doesn't even try to get to 3g.
I also tried the simcard with my friends i9505 and it got working connection with H+ immediately. I tried her working card on my phone and it was still only in gsm/edge mode. Her phone had xxubmga/xxbmg3 software inside so I tried the same modem with no luck.
One thing is that I can't downgrade the phone anymore since I installed the SELinux forced UK stock firmware. Also knox warranty is 0x1 since I cfrooted the phone at one point when I had gps problems. Still even after that the phone has worked normally with the said uk stock firmware for a long time. It seems that the korea network messed the phone up somehow?
Anyways, any tips about how to fix the problems would be greatly appreciated.
Click to expand...
Click to collapse
Just a shot in the dark, try *#*#4636#*#*
Under Phone Information > Preferred Network, Make sure you have the proper network selected. I had a similar issue connecting to LTE, it kept defaulting to WCDMA.
dratsablive said:
Just a shot in the dark, try *#*#4636#*#*
Under Phone Information > Preferred Network, Make sure you have the proper network selected. I had a similar issue connecting to LTE, it kept defaulting to WCDMA.
Click to expand...
Click to collapse
The code did't work but I got to that menu via ShowService Mode app. Chose wcdma all which also set the default network in settings to wcdma only.
Anyways no luck I checked with *#0011# and it keeps jumping between three screen No service, No sib19 or sib19 received. At one point it showed hdsp0, etc but I didn't get the chance to capture that screen. Attached are the files.
Just noticed in the service menu that the NAS information - MM reject information list says "Type 1, Cause 15 460-01, UMTS"
I guess this means that the phone is not allowed in 3g network? Operator problem, phone problems or sim problem?
I'd think it is not sim problem since it works in another phone but could the operator still be blocking or not recognizing the phone as umts device? Should call operator? Though they said they don't use blacklist at least or could the korean network had ruined some phone's own network capability database somehow?
Edit: also noticed in service mode that there is plmnsearch going on so it is trying to find suitable basestation to connect but I guess it can't find one. It gives NoCellAvailable(5) error. Crappy modem? although as said previously it used to work. I'm also in Shanghai city center where my friends' phones work just fine - and mine used to.
Waatu said:
Just noticed in the service menu that the NAS information - MM reject information list says "Type 1, Cause 15 460-01, UMTS"
I guess this means that the phone is not allowed in 3g network? Operator problem, phone problems or sim problem?
I'd think it is not sim problem since it works in another phone but could the operator still be blocking or not recognizing the phone as umts device? Should call operator? Though they said they don't use blacklist at least or could the korean network had ruined some phone's own network capability database somehow?
Edit: also noticed in service mode that there is plmnsearch going on so it is trying to find suitable basestation to connect but I guess it can't find one. It gives NoCellAvailable(5) error. Crappy modem? although as said previously it used to work. I'm also in Shanghai city center where my friends' phones work just fine - and mine used to.
Click to expand...
Click to collapse
You need to contact your provider and see if your account is setup for 3G, otherwise it will not access that network.
dratsablive said:
You need to contact your provider and see if your account is setup for 3G, otherwise it will not access that network.
Click to expand...
Click to collapse
I called the operator and they "refreshed" my 3g settings. Also my sim worked with my friends phone as H+ so it should be activated. Can operator choose the device to attach to 3g network by phone/imei instead of sim ?
It's supposed to be by IMEI.
Sent from my GT-I9505G using xda app-developers app
anyone any idea? is it because of the imei number?
hey guys, could anyone resolve this problem?
happens to me since I got my s4 after performing root and debradign
excuse my English I use google translate.
same issue with my i9505
Hi every one, I own samsung galaxy s4 i9505
im in Philippines there are three telcos that i know here, and my phone was a smart telecom locked,
i went to technician for open line to all network (globe, sun)
it was then unlocked but when i check my data connection it seldom get an H or H+ connection it always in E sign,
when i went back to the tech he says its normal!....
am I getting the right answer its NORMAL?
pls help.
thx
Waatu said:
Hi everyone, I'm new in the forum although been following it quite some time.
I have a problem with my i9505. After a trip to Korea my phone hasn't been able to get 3g connection at all in China Unicom network before the trip there was no problems. (I wasn't able to get network in Korea at all btw). Now connection is always with EDGE and GSM only.
Anyways the firmware I have been using is the new (3g connection with this firmware worked fine before the trip)
United Kingdom BTU (September 2013)
PDA: I9505XXUDMH8
CSC: I9505OXXDMHA
Version 4.2.2
After the problem occurred I have done factory reset and cleared cache. Also tried the new german BTU PDA: I9505XXUDMH5, CSC: I9505OXADMH5 Version 4.2.2
Also tried different modems: ZCUCMH1, XXUDMH8 and now it is XUBMGA - none of these work. I can select all LTE/wcdma/gsm and wcdma only, gsm only etc settings from the phone but only gsm or wcdma/gsm works. Other modes don't even find any networks (in Korea it didn't find any networks with any mode)
Factory reset and clear cache was done after every flash.*#0011# shows only GSM 1800 available so for some reason it seems that the phone thinks it is just a gsm phone or does it get it from the network?
Imei code shows up normally in the "about phone" menu and I also called China Unicom operator and they said that they don't even block any imeis so that shouldn't be the problem. Internet also works so the apn settings are ok, just that it is on edge only and doesn't even try to get to 3g.
I also tried the simcard with my friends i9505 and it got working connection with H+ immediately. I tried her working card on my phone and it was still only in gsm/edge mode. Her phone had xxubmga/xxbmg3 software inside so I tried the same modem with no luck.
One thing is that I can't downgrade the phone anymore since I installed the SELinux forced UK stock firmware. Also knox warranty is 0x1 since I cfrooted the phone at one point when I had gps problems. Still even after that the phone has worked normally with the said uk stock firmware for a long time. It seems that the korea network messed the phone up somehow?
Anyways, any tips about how to fix the problems would be greatly appreciated.
Click to expand...
Click to collapse
--------------------
I have the same problem. An internationally unlocked Samsung S4 I9505 (LTE) lost its 3G connectivity during a visit in South Korea. The strange thing is that there was connectivity during the first two days of the visit and only then it lost connectivity (there were no reception bars and an icon similar to 'no parking' appeared. Also - searching for service provides did not yield any provide). Only after landing few days later in Taiwan, reception was restored. But, it seems that from then on, the telephone operates only on GSM. Setting it to 'WCDMA only' results in the same 'no parking' icon and no data.
Will greatly appreciate any advice that will help me restore the WCDMA operation.
Same problem after visiting Korea. Have you find a solution?
Waatu said:
Hi everyone, I'm new in the forum although been following it quite some time.
I have a problem with my i9505. After a trip to Korea my phone hasn't been able to get 3g connection at all in China Unicom network before the trip there was no problems. (I wasn't able to get network in Korea at all btw). Now connection is always with EDGE and GSM only.
Anyways the firmware I have been using is the new (3g connection with this firmware worked fine before the trip)
United Kingdom BTU (September 2013)
PDA: I9505XXUDMH8
CSC: I9505OXXDMHA
Version 4.2.2
After the problem occurred I have done factory reset and cleared cache. Also tried the new german BTU PDA: I9505XXUDMH5, CSC: I9505OXADMH5 Version 4.2.2
Also tried different modems: ZCUCMH1, XXUDMH8 and now it is XUBMGA - none of these work. I can select all LTE/wcdma/gsm and wcdma only, gsm only etc settings from the phone but only gsm or wcdma/gsm works. Other modes don't even find any networks (in Korea it didn't find any networks with any mode)
Factory reset and clear cache was done after every flash.*#0011# shows only GSM 1800 available so for some reason it seems that the phone thinks it is just a gsm phone or does it get it from the network?
Imei code shows up normally in the "about phone" menu and I also called China Unicom operator and they said that they don't even block any imeis so that shouldn't be the problem. Internet also works so the apn settings are ok, just that it is on edge only and doesn't even try to get to 3g.
I also tried the simcard with my friends i9505 and it got working connection with H+ immediately. I tried her working card on my phone and it was still only in gsm/edge mode. Her phone had xxubmga/xxbmg3 software inside so I tried the same modem with no luck.
One thing is that I can't downgrade the phone anymore since I installed the SELinux forced UK stock firmware. Also knox warranty is 0x1 since I cfrooted the phone at one point when I had gps problems. Still even after that the phone has worked normally with the said uk stock firmware for a long time. It seems that the korea network messed the phone up somehow?
Anyways, any tips about how to fix the problems would be greatly appreciated.
Click to expand...
Click to collapse
I experienced the same problem and it also started at Korea (a strange co-incidence). It lost all network connections in Korea for 2 days and when I continued my trip and flew to Taiwan, the connection restored (without me doing anything). But a few weeks later I did note that everything is very slow and I found that the phone operates only as GSM (I was not aware to this because it was set to select automatically between LTE/WCDMA/GSM). Since then, it seems to operate only on GSM (if i set to 'WCDMA only' - it will not connect and a grey no- connection icon appears (similar to "no parking" street sign). I Did try 'almost everything'. I rooted, installed lolipop and back to Kit Kat (this morning). To my surprise, i had a few hours of normal operation (the letter H above the data icons as opposed to E when it operates on GSM). but after a couple of hours - "no parking" sign again and it will not work when set to 'WCDMA only' (and will operate when set to 'GSM only' but of course very slow data transfer). Very frustrating! Have anyone find a solution??
Huro
I'm suffering from the SAME problem, only on Brazillian network operator VIVO.
I was using it normally, then suddenly one the I got only EDGE data, no 3g and no 4g anymore.
I've tried EVERYTHING and I can't fix this crap, Did anyone ever got a solution on this?
nO fix for the problem?
experiencing same on stock 4.4.2 unrooted
Anyone with solution for this problem . Should i take my phone to samsung service center ? Can they repair it ?
I got a solution, it worked for me now 3g 4g working....
http://forum.xda-developers.com/showthread.php?t=2998527
Dude you saved my phone!!! THANKS A LOT
I have GSM Unlocked Samsung l720 , currently its running 4.4.2 with base band VPUFNG2.
I have having good GSM signal out door , but indoor my GSM signal level gets under a lot of fluctuation and even goes to no network signal multiple times in a day.
I have tried other network sim cards as well , but the problem remains the same, while network signal on my other mobiles at the same location are up to mark.
I need help on it , if there is any flash-able modem file which can make my gsm signal stronger , also is it possible to flash i9500 modem file on l720.
Thanks in advance.
Hello everyone: I hope I'm not breaking any rules by posting this, but I'm having annoying problems with my handset since I updated the OS to Lollipop N900AUCUEOC1. My handset is SIM unlocked and use it here in my country Peru, South America. The problem is as follows, it is most of the time with only 3 signal bars of LTE, the handset must outside to get full bars, but the real problem is that sometimes it doesn't get any connection at all (pic attached), most of the time happens right after I disconnect from my house's WIFI, or sometimes, it only connects to H+(4G), I have to dial *#2263# and change it to any option and then, set it back to LTE/GSM to gain access to the LTE Signal, and I do this everytime I lose LTE signal, I must tell the phone to use LTE instead H+ o get the signal back. I think there is a set of numbers somewhere that I can manipulate and tell the phone that LTE signal is available always and stop losing signal. I little story to understand my predicament, when I bought it it I had the same problems, and I took it to a guy who did something to the handset and worked perfectly ever since, he told me he "recalibrated" the signal settings. But after upgrating it to Lollipop, the problems came back. And the guy is no longer where I remember I found him.
Thank you in advance for your help, I really appreciate it.:fingers-crossed:
If you have questions or need more info, I'll be happy to provide it.
Hello,
Try to enter in Settings -> Mobile Networks -> and choose the Prefered Network to the mode you want!
**You're not breaking any rules, you are just asking for help! XDA is exactly for that!**
(I'm using an unofficial and modified CM13 by TEMASEK, so this steps is in AOSP settings app, but I think that is almost the same thing in TouchWiz)
Try this and tell if it works! ^.^
Sorry about my english, I'm brazilian...
Hey, thanks for your reply, but I cannot do what you told me because I don't have that option, I'm running stock ROM and it is not rooted. I canot change the ROM to any other ca use of my locked bootloader . Don't worry, I'm peruvian, English is not my native tongue.
Images of my problem inside this word
Good morning, here are pictures what I have to go through to get the internet connection back on my handset. But today was the worst day of this issue, even this procedure did not work and I had to restart the handset in order to have internet connection.
Please, I need help!!!
Thank you in advance for your help.!!!
Check your modem/ baseband is the correct one for your country .
JJEgan said:
Check your modem/ baseband is the correct one for your country .
Click to expand...
Click to collapse
Thank you so much for your reply.
Definitely it isn't cause I'm in Peru south america and the handset is from USA AT&T. Can I flash the other hand set's modem into mine?,one that is set for the Snapdragon
ebisetti said:
Hello everyone: I hope I'm not breaking any rules by posting this, but I'm having annoying problems with my handset since I updated the OS to Lollipop N900AUCUEOC1. My handset is SIM unlocked and use it here in my country Peru, South America. The problem is as follows, it is most of the time with only 3 signal bars of LTE, the handset must outside to get full bars, but the real problem is that sometimes it doesn't get any connection at all (pic attached), most of the time happens right after I disconnect from my house's WIFI, or sometimes, it only connects to H+(4G), I have to dial *#2263# and change it to any option and then, set it back to LTE/GSM to gain access to the LTE Signal, and I do this everytime I lose LTE signal, I must tell the phone to use LTE instead H+ o get the signal back. I think there is a set of numbers somewhere that I can manipulate and tell the phone that LTE signal is available always and stop losing signal. I little story to understand my predicament, when I bought it it I had the same problems, and I took it to a guy who did something to the handset and worked perfectly ever since, he told me he "recalibrated" the signal settings. But after upgrating it to Lollipop, the problems came back. And the guy is no longer where I remember I found him.
Thank you in advance for your help, I really appreciate it.:fingers-crossed:
If you have questions or need more info, I'll be happy to provide it.
Click to expand...
Click to collapse
Take a look: HERE.
hello to all friends and great android masters. i am form pakistan i have a really annoying problem with my S5 it is g900s SK TELECOM korean variant. i bought it second hand. every thing is working great but it cant connect to 3g network its always connects with GPRS and shows G indicator in status bar. internet speed is really very slow on GPRS. here in pakistan the services providers provide 3G at frequency of 2100. so i think this phone is not compatible with this frequency ( correct me if i am wrong). if so than please please tell me is there any solution available for this problem????? can i fix it? can i force my phone to connect with this frequency??? any other solution please i am really upset please help me friends. i also tried to install custom rom but its still the same. when i select WCDMA in settings it drops the signals. i am a poor guy i can not aford another phone so please guys i request u to tell me a solution if there is one available:crying:
and yeah sorry for my weak english
This limitation modem try another network operator, you can still break the WiFi network with the aid of the application "wpsconnect" a play market but needed root Try