I have a galaxy S3 (SGH-I747) originally on Rogers form Canada. I bought an Un lock code and unlocked it. The phone shows signal, makes calls and SMS, but NO 4G and NO network access. (internet pages don't load when disconnected from WiFi)
Under Mobile Network I cannot connect to ATT's network. Does anybody know what I'm doing wrong? Or is there a ROM i need to install after I ROOT the phone? Do I even need to ROOT it? (Sorry in advance, i come from the world of Jailbreaking, but have rooted Droids in the past)
Thx!
I'm not an expert, but you probably need to check your APN settings, and change them to AT&Ts if they aren't already. You can check this in Settings -> More Settings (in Wireless and networks section) -> Mobile Networks -> Access Point Names
I don't know what the AT&T settings should be, but you can probably find it easily enough. Also, you might want to Shut down the phone, remove the SIM, reboot without a sim, then shut down and put it in again to make it read the APN settings from the sim
Try flashing the ATT rom and see if that makes it work to start.
Got It!!!
I had to manually add my APN settings. I was over looking the button on the bottom left to configure it.
Thanks for the help!:cyclops:
Does the SGH-I747 (Rogers version form Canada) pick up LTE on AT&T?
I frequently run from Toronto to Buffalo. I took my S3 from ICS to Jellybean 4.1.1 and have had no issues until yesterday.
Upon crossing, I lost all service. I tried to go into the menus and see what was the matter without success. Later, I
realized that under MOBILE NETWORKS, Data Roaming wasn't checked. So I checked it off........still no service until
I was about a mile from the border, back on Rogers.
Anyone experience this?? I've bad numerous blackeberry's and cross without an issue all over the US and Caribbean.
I'm confussed.......and concerned about making another trip to the US, without my briefcase which has a backup blackberry
in it........
Suggestions? I fugured that checking the roaming box would have grabbed a carrier..........NOPE.........meanwhile,
my friend who has the same phone still on ICS worked fine................that's the strange part...........
Thanks guys.
Hi!
One thing you could check is if you activated the automatic selection of carrier, and if your phone can see other carriers' networks.
1. Go to Settings.
2. Under Wireless and networks, open More settings.
3. Under Networks, select Mobile networks.
4. Select Network operators.
5. Your phone should now disconnect and search for visible networks. (It should show networks you can connect to and ones you cannot; that is normal.) See if you find any carrier listed on this screen when the search is completed. If no network appear, press again Search networks to scan the visible networks again.
6. Press Select automatically to automatically register to the prefered network. When Rogers is in this list, your phone should register automatically to Rogers. If not, then it should roam on a network with which Rogers has a roaming agreement. You should also be able to manually select to which network you would like to roam by pressing the carrier's name (again, you will register only if Rogers has a roaming agreement with the said carrier).
Happened again this morning. However, I did what you said (here in Toronto) and it found BELL, TElus and Rogers. Now, it
would't find anything across in Buffalo. VERY strange. Called Rogers when I crossed and they were no help.
Could it be possible that it's an issue with Jellybean?? The phone is rooted and I used the Robinson's root injected JB ROM.
Suggestions? I'm crossing again in the morning... Can test more settings.....can't bring my old blackberry because it's a
regular sim and this thing uses a micro...
Alexandre-P said:
Hi!
One thing you could check is if you activated the automatic selection of carrier, and if your phone can see other carriers' networks.
1. Go to Settings.
2. Under Wireless and networks, open More settings.
3. Under Networks, select Mobile networks.
4. Select Network operators.
5. Your phone should now disconnect and search for visible networks. (It should show networks you can connect to and ones you cannot; that is normal.) See if you find any carrier listed on this screen when the search is completed. If no network appear, press again Search networks to scan the visible networks again.
6. Press Select automatically to automatically register to the prefered network. When Rogers is in this list, your phone should register automatically to Rogers. If not, then it should roam on a network with which Rogers has a roaming agreement. You should also be able to manually select to which network you would like to roam by pressing the carrier's name (again, you will register only if Rogers has a roaming agreement with the said carrier).
Click to expand...
Click to collapse
Hi everyone!
Just received LG Nitro HD which was bought on ebay.com (USA). As I live in Europe I can't use AT&T so I had to buy the unlock code and I did so. When I received the codes (NCK, NSCK, SPCK, CPCK, SIMCK) the Life's SIM was already in and I was doing some setup (can't remember exactly what, but not in wireless networks). So I decided do not reboot the phone and use 2945#*930#.
When I entered the code I get in the unlock menu. I pressed Network lock and the new menu popupd. I've entered the NCK and phone says that the Unlock was successful. Than I tried to press other menu items such as SIM unlock, Corporate unlock,... but without any effect.
After that I decided to continue my "exercises" and went to main screen and I didn't saw the network connection.
Than I've tried manual search, automatic search, other SIMs (from other carriers) - the only network which the phone can connect is life but connection loses in a few seconds. BT and WiFi works perfect.
I've tried to flash 10i.kdz, 10c.kdz, 10f.kdz, 18f.exe, 20c.kdz - only 10s and 18f.exe can start, others stuck on bootscreen.
Please help me how to connect the phone to other networks and make signal straight!!!
have you entered your apn settings for your carrier?
KronicSkillz said:
have you entered your apn settings for your carrier?
Click to expand...
Click to collapse
No, but they are received automatically somehow (maybe they are flashed at SIM?) for all networks I've tried. And they are correct - I've checked it on operator's sites.
Insert any sim and do a manual search. How many networks you see?
Also verify wether it is on 3G only or anything other than automatic cause in some devices it sticks even after full flashing. If that fails, best case scenario, antenna problem.
Sent from my GT-P3113 using xda premium
el_venga said:
Insert any sim and do a manual search. How many networks you see?
Also verify wether it is on 3G only or anything other than automatic cause in some devices it sticks even after full flashing. If that fails, best case scenario, antenna problem.
Click to expand...
Click to collapse
With any SIM or without any SIM, with manual or automatic search, with "2G only" set or not set it could see only the network named "life"
So I decided (the day before yesterday) to disassemble it and see what is happened inside. And I saw that some wire was not plugged but only putted on the board. I plugged it and powered on the phone - and IT HAPPENED!!! All the networks where found!!! So I've assembled it back and the problem was resolved. Sorry, I was so happy and didn't wrote about it.
The problem is decided, case is closed. Thanks for everyone for help.
rofl, yeah plugging your antenae in is kind of important
Hi,
1. I bought a Samsung s4 mini SGH-I257M, locked by Telus.
2. I tried install super root, but each time it tried to launch the application, a shield from up-left corner will block it to run.
3. I asked a mobile shop unlocked for me with Z3X, but the sim card cannot be registered (the sim card is not from Telus.) Every time when the phone try to register the sim card to network, there is a small shield icon will shows in the up-left corner and blocks it.
4 After two days, I went to the shop and got my phone back. I rooted my phone with Root Dashi, a chinese root software. It works! I inserted a Fido sim, the shield no longer there, but I still cannot register my phone to the network. Any idea?
Sorry for my English.
simickey said:
Hi,
1. I bought a Samsung s4 mini SGH-I257M, locked by Telus.
2. I tried install super root, but each time it tried to launch the application, a shield from up-left corner will block it to run.
3. I asked a mobile shop unlocked for me with Z3X, but the sim card cannot be registered (the sim card is not from Telus.) Every time when the phone try to register the sim card to network, there is a small shield icon will shows in the up-left corner and blocks it.
4 After two days, I went to the shop and got my phone back. I rooted my phone with Root Dashi, a chinese root software. It works! I inserted a Fido sim, the shield no longer there, but I still cannot register my phone to the network. Any idea?
Sorry for my English.
Click to expand...
Click to collapse
Rooting and carrier unlock are not the same thing. it sounds like you do not have an APN for Fido or slightly possible the shop was not successful, but if so the Fido SIM should prompt the phone to ask for an unlock code.
If so, there are tons of outfits that offer carrier/provider unlocking. You can Google the string "carrier unlock SGH-I257M". You will find How to videos on YouTube regarding unlocking as well.
But likely it is just a lack of an Fido APN not allowing it to register on the repeater. I looked for the APN BTW, No luck.
You might also do some XDA searches on Chinese online Rooting. The XDA Developer Arco68 has an excellent method that works very well on your phone if you should loose the root you have.
systwk said:
Rooting and carrier unlock are not the same thing. it sounds like you do not have an APN for Fido or slightly possible the shop was not successful, but if so the Fido SIM should prompt the phone to ask for an unlock code.
If so, there are tons of outfits that offer carrier/provider unlocking. You can Google the string "carrier unlock SGH-I257M". You will find How to videos on YouTube regarding unlocking as well.
But likely it is just a lack of an Fido APN not allowing it to register on the repeater. I looked for the APN BTW, No luck.
You might also do some XDA searches on Chinese online Rooting. The XDA Developer Arco68 has an excellent method that works very well on your phone if you should loose the root you have.
Click to expand...
Click to collapse
What do you mean "do some XDA search on Chinese online Rooting".
Should I ask Arco68 and see is there a i257m ROM for me?
When I power on my phone with Fido SIM card, it won't ask for unlock code any more. Where I can get the APN setting?
simickey said:
What do you mean "do some XDA search on Chinese online Rooting".
Should I ask Arco68 and see is there a i257m ROM for me?
When I power on my phone with Fido SIM card, it won't ask for unlock code any more. Where I can get the APN setting?
Click to expand...
Click to collapse
There are several threads on XDA about Chinese online rooting, it has been found that IMEI's, personal data and so forth have been transmitted to the host servers in the rooting process and links on XDA (wisely) have been banned until the matter has been fully researched. There is a good search function on these forums. You can find info.
Asking a developer for a specific ROM is bad form, just asking generaly in the Q&A section in will net what you are seeking. The Dev's are not paid, they donate serious work to the community as a whole, Read the forums for the i9195's, those are the ROMs available right now.
Read up on APN's, locate Fido users, call fido, do research. Anyway, hope some of that helps, it's about all I know about Fido. Learning with some effort is well worth the time spent. No one is born knowing this.
simickey said:
........................... Where I can get the APN setting?
Click to expand...
Click to collapse
APN Settings: From inside the Fido support website:
-------------------------->
Tap on Settings > Wireless & Networks > Mobile Networks > Access Point Names;
Once on the APN screen, press the Options button on the device;
Tap on New APN
Enter a name into the APN Name field. such as Fido APN
Please insert the following APN settings:
APN Settings:
APN: Fido-core-appl1.apn
If you have a LTE device, use the following setting: LTEMOBILE.APN
MMS (Picture & Video Messaging Settings):
MMSC: http://mms.fido.ca
MMS Proxy: 205.151.11.13
MMS Port: 80
Leave the following fields blank: Proxy, Port, User Name, Password, Server
Press the options button on your device, tap on Save in order to save the APN settings.
Open the Internet browser icon on your device and start browsing. There are occasions where restarting your device is needed before it can browse. If you cannot connect to the Internet, restart the phone and try browsing the Internet again.
NOTE: The created APN will show up on the APNs screen. To activate the APN, tap on the radio button located in front of APN.
Hi Systwk,
Thank you! Actually I use Chatr, not Fido. Because I don't want damage my current SIM card (cut to micro), so I use FIDO sim card which is currently not in use to test my phone. I got my SIM adapter today. I cut my Chatr SIM card and tested with my phone. It says registered on network, but the notification on the main screen says ?Selected network(chatr) unavailable", and I cannot make any calls. When I choose "Select automatically", it will say "unable to connect, try later".
Do you have any idea?
BTW, I tried with APN FIDO, it's not work.
simickey said:
Hi,
1. I bought a Samsung s4 mini SGH-I257M, locked by Telus.
2. I tried install super root, but each time it tried to launch the application, a shield from up-left corner will block it to run.
3. I asked a mobile shop unlocked for me with Z3X, but the sim card cannot be registered (the sim card is not from Telus.) Every time when the phone try to register the sim card to network, there is a small shield icon will shows in the up-left corner and blocks it.
4 After two days, I went to the shop and got my phone back. I rooted my phone with Root Dashi, a chinese root software. It works! I inserted a Fido sim, the shield no longer there, but I still cannot register my phone to the network. Any idea?
Sorry for my English.
Click to expand...
Click to collapse
Shield Icon sounds like Knox to me. Please post screenshot. (Hold home + Power)
simickey said:
Hi Systwk,
Thank you! Actually I use Chatr, not Fido. Because I don't want damage my current SIM card (cut to micro), so I use FIDO sim card which is currently not in use to test my phone. I got my SIM adapter today. I cut my Chatr SIM card and tested with my phone. It says registered on network, but the notification on the main screen says ?Selected network(chatr) unavailable", and I cannot make any calls. When I choose "Select automatically", it will say "unable to connect, try later".
Do you have any idea?
BTW, I tried with APN FIDO, it's not work.
Click to expand...
Click to collapse
farewellartist's suggestion is a good one. It could help to see what is going on. That aside, you have to use an APN that matches the network you intend to use and the account has to be active. Also the network protocol set on auto shows it finds the Network, the Sim and phone can connect, but it also needs to know how to communicate with it to register on the system. That's possibly the issue.
You really may find some help calling your Providers tech support regarding connection. Yes, that about as fun as banging your toes with a hammer, but usually has better results. It may be as simple now as plunging in an Access Point Name, user name and password in the APN. (Some Pre-Pay acct's use user and Password) Good news is you DO have connectivity. It's now down to details.
Keep plugging along, you are making progress.
Here is the support link for their Pre-Pay. I'm in Florida so I'm clueless regards to who you are dealing with.
http://www.chatrwireless.com/web/content/support_landing
Hope that helps you some.
The picture shows below.
The shied is gone after I took back my phone from a mobile shop. I rooted my phone and deleted the knox.
simickey said:
The picture shows below.
The shied is gone after I took back my phone from a mobile shop. I rooted my phone and deleted the knox.
Click to expand...
Click to collapse
You are certainly not weak on signal. As long as you have the APN set at 'APN: chatrweb.apn' you should register.
Rare as it is, Bad SIMS happen. (Murphys Law). Just to rule out you can try the below and I Know the steps getting there are not needed, but it's for others in the future who may be newer at this:
To check connection at the base level try the following.
GoTo: Settings-Connections-Network connections-More networks-Wireless and networks-Mobile Networks-Network Mode, THEN start ticking the 4 setting starting with GSM only, and work upwards. It can't hurt.
Also when trying to connect with chatr, in the search for Network operators/Available Networks in mobile Networks, when it's done searching nets available, choose one chatr. not auto. If it finds two chatr towers try each.
I'm adding the chatr APN for anyone in the future as well. I assume you have the same but it's not in the screenshots.
You must be frustrated by now, hope someone else with experience on chatr can offer a fix. I assume you did get on either Telus or Bell so you know the thing connects, a replacement SIM is the last option I can think of.
Good Luck.............
Chatr APN
------
Name: Chatr
APN: chatrweb.apn
Proxy:
Port:
Username:
Password:
Server:
MMSC: http://mms.chatrwireless.com
MMS Proxy:205.151.11.11
MMS Port:8080
MMS Protocol: WAP 2.0
MCC:
MNC:
Authentication Type: PAP
APN Type: default, MMS, supl
APN protocol: IPv4
APN roaming Protocal: IPv4
APN enable/disable: APM enable
Bearer: Unspecified
Hi Systwk,
I did what you said, but my phone remain to same. It says unable to connect. Maybe flash the ROM is my last step?
simickey said:
Hi Systwk,
I did what you said, but my phone remain to same. It says unable to connect. Maybe flash the ROM is my last step?
Click to expand...
Click to collapse
If it were me I would not re-flash anything. The connection problem would not likely be from a carrier unlock. Also it is not likely it would be from rooting or installing the CWM boot loader.
You have a known system now, you know when it worked, and you know the few modifications you have done. Even if you have called Chatr tech support before, it might help to call again and tell them it will not log on to their system. DO NOT tell them you have rooted the phone, DO NOT tell them you installed a boot loader. If you do that, they will probably say that is the problem, END of support. Just say it was unlocked by a dealer and now takes their SIM but it won't work.
They should walk you through each step of the configuration, they want your money every month, you want their service. Good place to start. Give them your IMEI, make sure it's good and not 'blocked'. it's in the settings/about device/status or dial *#06#. I'm assuming you already have confirmed your phone is comparable with chatr, I think you mentioned it was from TELUS, but with BELL, ROGERS or whatever, unlocking does not guarantee the Modem is the same as the new network you are trying to use.. There are several other reasons, but SIM, IMEI and improper configuration are the most likely problems if compatible.
There is a chance it is something simple that has been missed. You have shown patience, that is a big plus with modding phones. Going step by step and being willing to start over is something many here have done, and many times. Small problems are sometime the easiest to miss. So Call Chatr tech support, if they have an outlet near you maybe you can get a replacement SIM from them, (I would check that first) as I mentioned before.
One other thing to try, see if you can get a new Pre-Pay/month to month SIM from TELUS or the original carrier the phone was branded for. It should work and if not, they know their configuration. I'm out of suggestions, hopefully someone from Canada can be of more help. Don't give up. There are always answers.
Thank you, Systwk
The SIM card works with my old phone, so probably is not the SIM card problem. I take out the SIM card from S4 mini and power on it, the signal still shows good. So, I think flash ROM is the most simple way for me. Anyway, I will can chatr on Monday.
Hi Systwk, I called Chatr just now. She said the APN setting is only for Internet and I need to go to a Chatr shop to check my phone and SIM card. I think I will go this weekend.
I think you bought the phone that has been report as stolen and has been blacklist so it is block on all network in Canada.
QCN FILE
If you are having a problem getting a signal on your I257M message me I will send you the qcn file for it so you can write it to phone via QPST.