I'm currently in Taiwan for about a week, and am trying to use my T-mobile SGSII with a Taiwanese SIM card. I got my phone unlocked before I left, and I'm not getting any errors with the SIM card. However it looks like it's not working. I'm not seeing any network signal. If I try to search for a network it says "Error while searching for networks". If I try to select a network automatically, it says "Your SIM card does not allow a connection to this network."
Anything I'm missing?
Thanks!
mayonaise said:
I'm currently in Taiwan for about a week, and am trying to use my T-mobile SGSII with a Taiwanese SIM card. I got my phone unlocked before I left, and I'm not getting any errors with the SIM card. However it looks like it's not working. I'm not seeing any network signal. If I try to search for a network it says "Error while searching for networks". If I try to select a network automatically, it says "Your SIM card does not allow a connection to this network."
Anything I'm missing?
Thanks!
Click to expand...
Click to collapse
Sim my be bad.... Check ur apn settings...make sure they r from the sim.
I went to el salvador and this girl kept dialing some numbers on keypad and #*# n they finally got it to work...if no luck take it to tech office
Sent from my SGH-T989 using xda app-developers app
Well I eventually gave up on getting the Taiwanese SIM card working, but now I'm back in the states and my phone can't seem to recognize my original T-mobile SIM card anymore. I can't get any sort of network connection, and I get the same error messages when trying to change the network settings. Wifi is working fine.
The SIM card is fine, because I popped it into an old unlocked dumb phone I had, and was able to make calls with it... any ideas?
Thanks!
So it looks like my phone is stuck in flight mode, although Wifi works. When I goto Settings > About Phone > Status, the Service state says "Radio off"...
Hi.
Galaxy Nexus, 4.2.1, bot unlocked from amazon about 6 months ago.
On dec 2nd signal just went off. So no calls nor receiving can be done. While mobile internet is still ok.
Network is giffgaff, running through O2 - UK.
Taking this sim to other phone - works fine.
Support from giffgaff said that everything is perfect on their end.
Putting any sim in this phone, shows same issues - no signal, but there is mobile internet.
Checked status of IMEI, and it says in online services that phone is unblocked.
I have tried on/off airplane mode, restarting, taking battery off for a while, with sim in and out, as well did factory reset - still issue is here.
It is unrooted, just original rom.
Going to settings > mobile networks > network operators > I select any network and it says: "Can't connect to this network at the moment. Try again later.". Same when choose automatically.
It allows to do emergency calls, and in status bar shows: "emergency calls only | giffgaff".
In About Phone section, network is "O2 - UK" as suppose to be, Signal strength "-101 dBm 7 asu", mobile network type "HSPDA:8", service status "Out of service", Roaming "Not roaming".
Please ask any questions if any additional information is needed.
King regards.
I am looking forward to anyone to try assist with this issue, and kin to help.
Contact your operator for change your sim, it happens to me this summer, my Sim card was working well with other phones but with my Gnex everything was disabled. Then I've received my new Sim card and everything is working well
Sent from my Galaxy Nexus using xda premium
Man_u said:
Contact your operator for change your sim, it happens to me this summer, my Sim card was working well with other phones but with my Gnex everything was disabled. Then I've received my new Sim card and everything is working well
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Then other SIMs would work well. But inserting any SIM in this phone - doesn't work for calling. Only mobile internet.
mrmoka said:
Hi.
Galaxy Nexus, 4.2.1, bot unlocked from amazon about 6 months ago.
On dec 2nd signal just went off. So no calls nor receiving can be done. While mobile internet is still ok.
Network is giffgaff, running through O2 - UK.
Taking this sim to other phone - works fine.
Support from giffgaff said that everything is perfect on their end.
Putting any sim in this phone, shows same issues - no signal, but there is mobile internet.
Checked status of IMEI, and it says in online services that phone is unblocked.
I have tried on/off airplane mode, restarting, taking battery off for a while, with sim in and out, as well did factory reset - still issue is here.
It is unrooted, just original rom.
Going to settings > mobile networks > network operators > I select any network and it says: "Can't connect to this network at the moment. Try again later.". Same when choose automatically.
It allows to do emergency calls, and in status bar shows: "emergency calls only | giffgaff".
In About Phone section, network is "O2 - UK" as suppose to be, Signal strength "-101 dBm 7 asu", mobile network type "HSPDA:8", service status "Out of service", Roaming "Not roaming".
Please ask any questions if any additional information is needed.
King regards.
I am looking forward to anyone to try assist with this issue, and kin to help.
Click to expand...
Click to collapse
Based on this info, I suspect your radio simply died. You could of course try to reflash the radio firmware yourself, but I would not get my hopes up.
Petrovski80 said:
Based on this info, I suspect your radio simply died. You could of course try to reflash the radio firmware yourself, but I would not get my hopes up.
Click to expand...
Click to collapse
Thanks for info. I thought about that as well.
So would it be the option if I have bought the device from amazon, to use their RMA services - they should replace device.
Is that right?
Thanks for helping out.
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.