I bought an Unlocked Canadian S6 recently, and it just won't let me connect to the LTE network.
Model Numer : SM-G920W8
Android Version : 5.0.2
Baseband : G920W8VLU1AOCG
Connecting to the LTE is not even an option. When I go in the Network Options, I get the choice between :
-WDCMA/GSM (auto connect)
- WDCMA only
- GSM only
I know for a fact that I am in the coverage zone, so no need to ask that silly question
I've tried different SIM cards, played in the options a bit, and factory reset the phone about 5 times now, yet nothing seems to work.
Also, when I try to do the update, it just reboots and gives me an Android logo and a failed Icon
I've only seen one other post like this from a carrier's support website, but no solutions were found.
**Update : For a reason, after a recovery, it will connect to the LTE for a bit or until next boot, then go back to what it is now.
First question, who did you buy the phone from? Second, Is it second hand? By default, Wind mobile does not allow the LTE option to be displayed in system settings as they as a carrier don't have LTE. It is blocked by the CSC setting for the carrier. As for other carriers It should leave you the option to connect in settings where you say it is not. If it is a Wind phone, You would need to change the CSC to enable the LTE selection. There is a method to force LTE even without option in settings, but I think it is removed in the latest firmware. Try dialing *#2263# in the dialer. It may bring you to menu that will allow you to select LTE. This is not a permanent method though as it will need to be done every boot. The other way, (If you are in fact a Wind/Mobilicity phone) is to enter dialer and enter *#272*IMEI# with IMEI being your devices unique code. If at all possible, take a full nand and Titanium Backup before doing this and be sure to transfer everything off the phone to a PC. This method wipes everything and I mean everything off the phone buy is a surefire way to enable LTE.
Yes, it was second hand. I didn't ask who was his carrier simply because it was unlocked.
I'll try it tomorrow, thanks for the information
Here is the menu you will see when you type the *#272*imei# code into your dialer. The codes are the carrier names. Mine which is GLW is Wind, BMC is Bell, RWC is Rogers, etc.
Maybe there is no LTE in your area...
roydok said:
Maybe there is no LTE in your area...
Click to expand...
Click to collapse
It would still be visible in the Settings/Mobile Networks/Network Mode menu which it is not. His problem is more than that.
BCSC said:
First question, who did you buy the phone from? Second, Is it second hand? By default, Wind mobile does not allow the LTE option to be displayed in system settings as they as a carrier don't have LTE. It is blocked by the CSC setting for the carrier. As for other carriers It should leave you the option to connect in settings where you say it is not. If it is a Wind phone, You would need to change the CSC to enable the LTE selection. There is a method to force LTE even without option in settings, but I think it is removed in the latest firmware. Try dialing *#2263# in the dialer. It may bring you to menu that will allow you to select LTE. This is not a permanent method though as it will need to be done every boot. The other way, (If you are in fact a Wind/Mobilicity phone) is to enter dialer and enter *#272*IMEI# with IMEI being your devices unique code. If at all possible, take a full nand and Titanium Backup before doing this and be sure to transfer everything off the phone to a PC. This method wipes everything and I mean everything off the phone buy is a surefire way to enable LTE.
Click to expand...
Click to collapse
Sweet! It works :good: Thanks man
Now, would you have any ideas on why the update won't work? I didn't get much into it yet, but I will soon.
I'm not sure why it wouldn't update, but now that you have changed the CSC you can download the update and flash with Odin. Pick your carrier and go to town. The guy running the following thread runs his own firmware host. He's got amazing DL speeds. Usually takes me 6 or so minutes to do the 1.6gb file. http://forum.xda-developers.com/showthread.php?t=3086387
I'm having the same issue.
Scurbs said:
Sweet! It works :good: Thanks man
Now, would you have any ideas on why the update won't work? I didn't get much into it yet, but I will soon.
Click to expand...
Click to collapse
Connected with someone selling a G920W8 version. LTE is disabled and the codes aren't working. Can you reaffirm which unlock code worked for you? I'm on Fido, what LTE network are you using?
hi BCSC
Thanks for the details. I searched complete net and read all articles but nothing set me up with the proper thing. i read your solution i dialled *#2263# and all i got is service mode and in that i went to band selection , LTE and the all ....... Yes and its showing LTE in mobile data. THanks so much.
But now another issue, network is showing perfect but no outgoing and incoming calls.
in incoming its showing busy and on outgoing its not connecting to another phone.
And, Lte is not showing in mobile networks, There only 3 options still are showing.
Mine is same Wind S6 but i had to use in India.
Let Me know
Thanks once again
Cheeerzzzzz
Varun
Picking LTE from the service mode will note make it visible from the settings menu. Its more of a workarpund instead of a way of permanently enabling it. As for the issue of no out/in calls, my best guess is that it could be due to which LTE bands are being used or are available in India. Unfortunatly I have no way to test that option. I only was successful in getting the Wind LTE option on Canadian carriers.
Sent from my SM-G935W8 using XDA-Developers mobile app
my phone is SM-N915K model. When Iuse it in my country(Sri Lanka) some functions doesn't work properly. No 4G signals receiving though it is a LTE version. and some of USSD code of my subscriber not working also. So can i change the firmware to any international version? is it possible?
Amila Basura said:
my phone is SM-N915K model. When Iuse it in my country(Sri Lanka) some functions doesn't work properly. No 4G signals receiving though it is a LTE version. and some of USSD code of my subscriber not working also. So can i change the firmware to any international version? is it possible?
Click to expand...
Click to collapse
those functions are disabled. what are you trying to do ? there is a secret service menu on the phone from olleh which might be of some help.
319712358 and pasword id 774632. you can select only lte in the network mode etc
anizh said:
those functions are disabled. what are you trying to do ? there is a secret service menu on the phone from olleh which might be of some help.
319712358 and pasword id 774632. you can select only lte in the network mode etc
Click to expand...
Click to collapse
I hv choose LTE option in mobile network place. But the phone receiving only 3G n 2G signalas and we have USSD codes here to check the mobile balance and data balances like wise. Also olleh cs is working in korean fonts. How to work with given is n password by u. Thanx for ur concern.
A little history on how I get to no VoLTE and my question: I'm trying to figure out if there is a way to copy 'some' CSC directory files, or modify a CSC file to enable the VoLTE tab to show and work?
So I have a G930S phone with 8+ Infinity v8 ROM. Phone INFO and CSC Features apps shows phone as G955F, with a CSC code of XAA, USA/US. The phone works just fine on the AT&T service, even without doing a scan of "Service Providers". Interestingly, there is no CSC directory in root/System. There is no VoLTE, as I'd think is consistent with the original phone being G930S (Korean)
I can go into Settings/Connection/Mobile Networks/Network Operators and do a scan of providers and it pulls up AT&T, T-Mobile, etc just fine. That's great.
I think because the base phone is for the China area, when I go into the Settings/Connection/Data Usage area, going into the "Service provider settings", I get three Chinese possible servers, and when I go into "Region", there is a list of Chinese cities. I do lose these Chinese setting tabs when I flash a US based CSC.
I have flashed CSC TMB, ATT and XAA, and the phone works fine on the AT&T service (Cricket) , and a specific System/CSC directory is installed, though I can no longer input any phone 'codes', eg *# whatever. I've tried about 5 methods to get the phone to get working *# codes, nothing so far solves it.
I have tried copying into System a CSC directory for ATT and later TMB or XAA, and my setup will work fine on the AT&T service, and I lose the Chinese regions/cities, as should be appropriate, but I can not input any phone codes, *#...
So I've gone back to the 8+ ROM, where there is no System/CSC directory and I get AT&T service with or without doing a Service provider search, but no VoLTE.
I'm trying to figure out if there is a way to copy 'some' CSC directory files, or modify a CSC file to enable the VoLTE tab to show and work?
Hi,
I have a problem with my Samsung Galaxy S8+ (G955F) model. The phone shows Carrier ID: VOD (I guess means Vodafone/Product Code) in Odin Mode in Red Color, the phone is unlocked working on one carrier in all LTE/3G/2G networks but on other carrier it only works in LTE/3G modes and when i switch it to 2G only it doesn't register to a network on this second carrier and as long as i Turn it Back to LTE/3G/2G it registers but to only LTE or 3G.
I believe it is some kind of a partial carrier lock where the phone is locked on some carriers in different network modes.
Its not registering to 2G on Telenor Pakistan Network while it registers on LTE/3G/2G perfectly fine on Zong CMPak.
The phone doesnt require any kind of carrier unlock code or something.
Is there any way to work this around??? I have installed UK BTU Firmware from Sammobile, already debranded and works perfectly fine just not working in 2G mode on this one carrier.
Is there any way to change this product code or something while being on official Stock Firmware?
My Current Service Provider Version is: PAK/PAK/VOD
I want to change this to PAK/PAK/PAK and remove that Carrier ID: VOD thing from the odin mode display.
Please help!!!!!
hi did you find a solution??
Nopes. I just had to change my phone after all the things I tried, It won't go so I had no other option.
Forgive me if this has been covered but I havn't found the answer. I've flashed just about every phone I've ever had but my question here is can I / how do I flash to where the phone reads as XAA in download Mode?
The situation is my phone was originally on at&t. They unlocked it and I'm on Verizon. It all works great (it still says at&t on download Mode screen)
My problem is that if I log into the my Verizon app it disables my visual voicemail. I finally got a Verizon tech on the phone that explained that it is unsupported due to originally being on a different carrier and their system identifies that and disables the VVM. The only fix I can find is to put my sim in my backup S9+ that came from Samsung unlocked (or any Verizon phone) and I can then reactivate my VVM by resubscribing.
I currently have 3 Note 20 Ultras. One Each originally from Samsung, ATT and Verizon but the AT&T is the only one that is 512GB or I would just switch phones. I have flashed them all to U1 firmware but notice they all still reflect the original carrier in Download Mode so again my question is can I change this by flashing it / or is it just a matter of what sim card is in it when it's flashed? I need it to be seen as XAA by Verizon system so not to loose VVM... Pics attached.
Any advice here is greatly appreciated in advance.
Just a try... You can try the *#272*imei# method... But thats If it works. Not sure if the sims has to be in the phone for that to work.
GDHAMTON7 said:
Just a try... You can try the *#272*imei# method... But thats If it works. Not sure if the sims has to be in the phone for that to work.
Click to expand...
Click to collapse
Yes it brings up this menu... So I just select the XAA and that's it? I've been reading forums and this method is reversible it seems ... I'm familiar with Odin and all that but these hidden menus are new to me...
Thanks for the reply btw
You may have to activate the bottom most option to stay.
Don't worry if you can't access the menu after the change. You can download samsung band selection and change to automatic or one of the lte options then back to automatic to get to the menu.
CSC Guide
CSC (which I think means Carrier Service Code) helps to set what options for settings show in the device for things like voicemail and wifi calling, as well as sets network code information for things like carrier aggregation combos.
When you go to your phone settings->about phone->software information and look in the Service Provider SW ver. section, you will see as the last line a combo like XXX/YYY/ZZZ. This indicates what carrier sales and network code is set and what brand the phone was manufactured as.
I think of the XXX/YYY/ZZZ configuration as follows
XXX=Sales Code-What kind of features are setup in the firmware like wifi calling, video calling and settings menus
YYY=Network Code-What kind of network features are set for things like carrier aggregation and LTE/5G bands
ZZZ=Manufactured as Code- What model the phone was originally manufactured as. Ot has no affect on the system settings or options. THIS CAN NOT CHANGE. IT SHOULD ALWAYS BE THE SAME. ONLY A ROOTED PHONE WOULD BE ABLE TO ACCESS THE FILES NECESSARY TO CHANGE THIS.
for more details, refer to post:-
[Guide] Service Mode and CSC Guide/Enable LTE/5G Bands and Services/5G Low Band on U1
Hello All, Many people have asked about service mode and CSC related questions and I thought we should get a discussion going that is all in one place. *DISCLAIMER* I do not take any responsibility for any issues that may occur from changing...
forum.xda-developers.com