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
Hi everyone,
I have an unlocked Galaxy Note 4, this was not my original phone. It should be the Canadian variant of the phone (SM-N910W8) and I am trying to use it with Rogers.
I have tried installing every stock firmware that was made available to the phone (2-3 variants of 4.4.4 and 1 variant of 5.0.1) including a nightly build of CM12.1
Regardless of the firmware, the phone connects to cellular networks and shows only the 4G indicator. The 4G will only work randomly, and I should have LTE in my area, it doesn't connect to LTE at all. I have a Note 2 and my sim card is fine and the Note 2 connects correctly. Cellular randomly disconnects and then comes back on
I have the APN settings set correctly as well; the phone should also auto-detect the provider's settings during set up anyways.
I'm not sure what the previous user did with the phone. The IMEI sticker under the phone indicates the phone is the SM-N910W8 model, and download mode confirms this. When i press *#06# in the dialer, a different IMEI appears, i checked that it is the SM-N910T (T Mobile) variant. Either variant should work properly under Rogers.
Hopefully someone can help me out before I write this thing off:
1. Can the fact that there are different IMEI numbers impede the phone from connecting to Rogers properly (i figure not since it does intermittently connect and work)
2. How come LTE never appears (all APN settings are correct and *#2263# is set to automatic, there is no network connection if set to just LTE/GSM mode)
3. The T-Mobile stock firmware will not install through ODIN in download mode, the update fails
Thanks everyone
I have the S7 Edge from AT&T (SM-G935A) and I get terrible reception at work. I have to turn airplane mode on and off 3-5 times during my lunch break just to send a few texts. I also have an older unlocked Note 5 (SM-N920C) which will struggle a bit but will still send and receive every text after a few seconds (20-30) of spinning its little wheel. So the question is why would an unlocked non carrier specific phone lock onto the AT&T signal better than an AT&T phone? I've been into the AT&T store and nthey seem to have no idea. The S7 Edge works great anywhere that I have a couple bars of LTE but when it's struggling with 1 bar of LTE or just plain 4G it's not so great. Any suggestions?
That type of subtle difference in coverage can be caused by the little differences in design. Phones today mostly use the frame for the antenna, so Samsung has to make adjustments for the edge, and the Note 5 simply has more room for the antenna. I haven't pulled the edge apart, but that's my guess based on years in the industry.
The other possibility is that it's struggling to keep an LTE 'enhanced' connection for HD Voice and video calling, which of course an int'l Note doesn't have. Try turning off enhanced LTE in mobile data settings & see if it makes a difference. Or maybe try switching to the HSPA+ 'wap' apn and maybe if it isn't always looking for LTE it'll hold the connection longer
Motorola phone for u bro they have the best signal of any phone I've ever used. Also some believe the way you hold it matters. And cases may effect signal strength. Some buildings affect signal strength as well maybe try a different location.? The note gets better signal because of the size.
Sent from my SAMSUNG-SM-G935A using Tapatalk
Thanks for the suggestions. I switched to the unlocked S7 Edge (935F) and it works even better than the Note 5 did. It makes no sense at all.
Sent from my SM-G935F using XDA-Developers mobile app
can you solve this essue
i have a samsung galaxy s7 edge which has no service problem it does not get any signal at all
in network section it show ( radio off)
i tried #*#*4639*#*# run ping test tried to turn on the GSM radio band but it did not worked
the phone is unlocked because i inserted the unlock code which was send to me by at&t
please help me solve this problem
b.atayee said:
i have a samsung galaxy s7 edge which has no service problem it does not get any signal at all
in network section it show ( radio off)
i tried #*#*4639*#*# run ping test tried to turn on the GSM radio band but it did not worked
the phone is unlocked because i inserted the unlock code which was send to me by at&t
please help me solve this problem
Click to expand...
Click to collapse
i have same problem,any fix?
FYI, the code you show is incorrect, it should be *#*#4636#*#*. I get an invalid code error message if I use your code.
Good Evening
I just recently acquired a Korean Samsung Galaxy Note 4 from a Mobile Flea Market in the Philippines
When I tried to put a SIM Card (Sun Cellular) in the phone, I notice that if you turn on the phone, there is no signal in the network bars when I am inside my house so I went outside and the phone already acquired only a few bars of signal. Sometimes when it goes up to 3 bars it just go down and fluctuates.
I tried to put the SIM Card to another phone (Samsung Galaxy Grand Max - Also Korean) and what I am amazed is it manage to capture the full bars of the network itself and much better if you go outside .
Is there something i need to adjust to my Korean Note 4 but why my Korean Galaxy Grand Max has already acquired the full strength of the network? Is there a problem with the phone or do I need to go to a technician to fix the signal?
Will upgrading my firmware from S910S-S910C might repair the problem in the signal?
Thanks
Hi,
I am new to this forum so welcome everyone!
I am struggling a little with my A5 from 2015. The problem is that I was not using it for two years and now pulled out from the box. All works like a charm except 3G/LTE. What I did so far:
Installed latest ROM from updato
Checked SIM card in other phone - LTE worked fine
Checked another working SIM in A5 - again no LTE
Restored factory defaults 3 times
Funny thing that I have once seen 3G connection - well at least the icon for few seconds. Also when I bought it in 2016 it was loosing network when I was in a tunnel or underground parking - so I sent it to Samsung at that time and they said all is working as expected.. i then switched to other phone.
Looks pretty much as a hardware issue to me but before I will take it to service I thought someone could have some ideas.
Also if this is hardware shall I replace the modem or antenna or both?
Thanks, Simon
If it's just the 4G/3G icon, set up an APN.
If band locking or selection is applied, set it back to the defaults.
Run a manual network search, and check the status in *#0011#. If it looks normal, it's probably not hardware.
Hi @Bryan48765, APN is fine as I tested the SIM card with same APN on other phone and all is fine - LTE/3G is there. Neither band locking nor selection is applied. I did a search for network providers and it works correctly but still no 4G/3G.
I will check the network status using a code in few hours when I have access to the phone.