Cannot find network abroad - T-Mobile Samsung Galaxy S II SGH-T989

I have an unlocked t989 that I gave to my friend who was visiting me at the states. At the time in the states we put his Taiwan SIM card and it can receive phone calls. Upon returning to Taiwan the same SIM card can no longer make or receive calls. It cannot connect to any network. Try the manual and automatic network search but still cannot connect. Tried a bunch of different active Taiwan company SIM cards and only one SIM (Vibo or something) was able to connect to the network. All the SIM cards are confirmed working when used on any Taiwan phones.
Apn settings are blank except with US T-Mobile SIM card or Vibo SIM card.
I tried to use app "SIM card info" and it couldn't read any info from the SIM card except T-Mobile and Vibo.
Need some ideas as to what could be wrong. Thanks
Phone:
T-Mobile galaxy s2 t989
CM 10.1.0
Unlocked (confirmed by making a call on Taiwan SIM card Vibo)
Sent from my SGH-T889 using Tapatalk 2

Related

Your SIM card does not allow a connection to this network

Hello,
I bought a DHD online and when I put the SIM card the phone will not connect to the network.
The same SIM card in my other HTC's works without problems.
With other cards of the same network but the problem perch, but with cards from other networks the problem does not occur.
When I try to choose my network and the error that appears is "Your SIM card does not allow a connection to this network"
Please, anyone can help me?
I have seen this happen with stolen phones... Hope you purchased from reputed seller...
Sent from my Desire HD

Can't use foreign SIM card?

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"...

need help figuring this out with my sim

i have the gt-i9250 and i always used an at&t sim with it with out an issue, recently i wanted to switch to t-mobile (thinking the phone should be unlocked considering it was an international phone and was the yakjuxw than i flashed it to yakju which was wierd cause i had google wallet on it and it was working fine although i only thought it was compatible with takju, but anyway all and all i put it to the usa firmware of takju 4.0.4 not going to jellybean yet, but my issue is that i am not able to use the t-mobile sim card in it and i get this (look at screenshot where signal is) what does this mean and how come i cant get signal, when i go to settings and mobile networks it shows me the apn for t-mobile us but not selected so i select it than after i go to mobile networks and it shows t-mobile and at&t and when i click any of them they tell me its unable to connect and it cant connect to the network at this time, so what would this mean and how would i fix it so that i can use it with my t-mobile sim card, also i flashed the newer NA radio uglc1.
That is weird. It should work on either of them. It just means you have no signal. That is strange. You could've actually just popped the Sim right in. It didn't matter if you were using a ROM
Sent from my Galaxy Nexus using xda app-developers app
Is the SIM activated for sure? I know when I switched to the T-mobile $30 plan it took it a good 15 minutes or so to activate, and then I didn't actually get signal until rebooting the phone for whatever reason.
Did you reboot your phone?
Although you can sometimes hot plug a sim card by turning on flight mode, taking the sim card out and toggling flight mode a few times, it won't work sometimes.
probably your cell imei not free and therefore can not change your sim.
There is an application called "****docomo" worth to release the imei. Make a backup just in case
https://www.dropbox.com/s/mcg9gtn1ei85357/FuxkDocomoV3.1.apk
yosula said:
probably your cell imei not free and therefore can not change your sim.
There is an application called "****docomo" worth to release the imei. Make a backup just in case
https://www.dropbox.com/s/mcg9gtn1ei85357/FuxkDocomoV3.1.apk
Click to expand...
Click to collapse
Don't think he has a SIM unlock problem. Considering that it was working with AT&T, which never had a locked version of the GNex, I think he's having another issue.
I'd tell the OP to make 100% sure that his new T-Mobile SIM is activated and not defective, then try a few reboots and swaps back to the old SIM and do some troubleshooting. If it's the phone and not the SIM, its likely a mobile network registration error or an APN issue.
Looking in the notification bar, it seems like the phone doesn't think there's even a SIM inserted. Make sure you didn't damage a pin in the SIM tray, and that the SIM is properly inserted and clean. I don't think you'd get this error of "no SIM" if your phone was locked. If that was the case, the phone would recognize the SIM and prompt for an unlock code, which you're not getting.

[Q] NO SERVICE messages. Please Help!

Hi All,
I have a Canadian T989D from Koodo mobile which I unlocked using unlock code. I took it abroad to Pakistan and after using for 6 months, one day all of a sudden I got NO SERVICE.
Trying to manually select networks, I come across different networks available but clicking on any one of them results in NETWORK REGISTERED sign but still doesn't connect to any network. When I go into the APN settings, I can see different APN settings for the respective sim cards that I put in. E.g. If I put UFONE sim card in, I can see APN settings for UFONE SERVICE PROVIDER.
Here is the twist though. I came back to Canada yesterday and when I put any Canadian Sim in it (FIDO/VIRGIN), it connects to the network without any problems.
Next, I tried T-Mobile sim in the phone. At first few attempts I would receive NO SERVICE/EMERGENCY CALLS ONLY messages. However, just recently I was able to connect to the network by repeatedly changing sim cards and restarting the phone.
So the specific questions to all of you is that "Why can't I connect to ANY network in PAKISTAN when I can see the APN settings for each sim card I put in?" Is there something I can do to fix the issue? I have a running sim card from PAKISTAN with me which I had previously used to connect to the network. Please help/guide me.
Any response will be greatly appreciated.

SIM2 Not Working

Hi all,
Just got my Zenfone 2 yesterday and was super stoked, however the SIM2 component is not working. I have two SIM cards, one with Telus and one with Virgin Mobile. (Canadian carriers). No matter which order I put them in, the SIM2 card never works. The Zenfone 2 is able to identify the phone number associated with the SIM card in the SIM2 slot, but it is unable to actually make a network connection.
Anyone know how to get SIM2 working?
just update to the latest rom... I did and got my Sim1 working again!!
fxdcom said:
Hi all,
Just got my Zenfone 2 yesterday and was super stoked, however the SIM2 component is not working. I have two SIM cards, one with Telus and one with Virgin Mobile. (Canadian carriers). No matter which order I put them in, the SIM2 card never works. The Zenfone 2 is able to identify the phone number associated with the SIM card in the SIM2 slot, but it is unable to actually make a network connection.
Anyone know how to get SIM2 working?
Click to expand...
Click to collapse
SIM2 is 2g only. So it needs to be Rogers (or network that uses Rogers) to work
Sent from my ASUS_Z00AD using XDA Free mobile app
Only SIM card slot 1 can access 3G/4G/LTE data. SIM card slot 2 can only be used for 2G service which include voice and basic text messaging (Not multimedia messaging services MMS or internet browsing). http://www.asus.com/us/Phones/ZenFone_2_ZE551ML/HelpDesk_knowledge/
Sincerely
ASUS_USA
fxdcom said:
Hi all,
Just got my Zenfone 2 yesterday and was super stoked, however the SIM2 component is not working. I have two SIM cards, one with Telus and one with Virgin Mobile. (Canadian carriers). No matter which order I put them in, the SIM2 card never works. The Zenfone 2 is able to identify the phone number associated with the SIM card in the SIM2 slot, but it is unable to actually make a network connection.
Anyone know how to get SIM2 working?
Click to expand...
Click to collapse
I know this is an old thread but i was wondering if anyone has found a solution to this issue? I am having the same issue trying to get Sim2 to recognize a network. The number on the Sim card is recognized. I have tried switching the cards around and the result is always the same. Both providers that I am with are in Canada. One sim is with Bell and the second is with Virgin Mobile.
Are you saying you can't even make calls on sim2?
Sent from my ASUS_Z00A using Tapatalk

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