GSM service stopped working ('No service'), even though SIM loaded - Galaxy S 4 Mini Q&A, Help & Troubleshooting

Hey guys,
I've got a problem.
My s4 mini stopped loading cell signal from GSM network service. The SIM is loaded, as I can see it even in some programmes like Network Info. It even shows the name of the operator.
Even though the SIM card is loaded (it does NOT show "no sim card" error), I cannot get any service. Used 2 different network service providers, but still nothing. I changed GSM antenas and also SIM+SDcard slots on the motherboard, but still nothing.
What can the cause be, any idea?
Thanks.

Related

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"...

[Q] Help Desire Z A7272 Your SIM card does not allow a connection to this network

Greetings
I'm looking for help with a Desire Z A7272 that does not connect to any GSM network in my country (Peru) after changing the MicroSD card, unbelievable as it sounds.
It was working fine, I replaced the MicroSD with a class 10 SanDisk. After turning it on, it recognizes the SIM card (I can access the network operator menu) but does not connect, all bars are grey with a small white "x". and a message "Limited Service". The SIM works fine in other phone. Tried a new SIM card from both operators (Movistar and Claro ), same result.
Trying Settings->Wireless and Networks->Mobile Networks autoselects GSM/WCDMA when I try to select GSM Only. Network Operators lists both networks, Claro Per y Movistar, selecting any of those returns "Your SIM card does not allow a connection to this network".
I removed the MicroSD, removed battery for 1 hour, disabled FastBoot, switched airplane mode on/off, reinserted SIM card, entered *#*#4636#*#* and turned radio on/off, and other advice found on [How I Fixed "Your SIM card does not allow a connection to this network" G1] at [The Wichita Computer Guy] web page.
Finally, I did a factory reset, no solution. Updated to the latest HTC update. It remains the same, "Limited Service", all bars grey.
Phone was bought from Hong Kong thru Ebay, unlocked and new. Came with 2.3, unrooted, Up to this moment, it worked perfectly (2G+EDGE only, band is wrong for 3G) and has been pampered and barely used, just for reading ebooks and angry birds once in a while. When replacing the MicroSD card, I didn't even touch the SIM card.
Thank you.

[Q] insert sim card to access network services

Hi Guys.
So received the phone on Thursday, Friday I did a sim swap from my normal sized sim to a micro sim. I waited the whole day but the phone didn't have any network access.
Today when I woke up I I switched the phone on hoping that everything will be fine, thinking the simswap just hasn't gone through yet, still no network access. I took out the swim from the phone and switched with my ipad, the sim was working in the ipad, and the ipads sim also didnt give the phone network access.
In the top right corner it shows full bars in grey, cant make emergency calls or anyhting.
In the about section of the phone, I have ALL the details present, baseband version is there, kernel version is there.
In Status section, network is unkown, signal strenght is -83 dbm 15 asu, network type unkown, service state is out of service, and the rest is also present.
I thought the phone didn't properly register to a network, so went into settings - wireless networks - more settings - mobile networks, but it gives me a insert sim card message.
The phone is reading the simcard fine because it asked for the PIN when switching on.
When trying to make a call I get, it says "Not registered on network"..
So what am I to do? Vodacom can only pickup the phone and exchange it on Tuesday, so was hoping that this might just be a software issue that can be resolved by a flash.
I have tried resetting / hard resetting the phone numerous times.
Its the Note 2 N7105 LTE Version
Any help would be highly appreciated.
Wrong forum.

DINC2 unlocked but doesn't recognize SIM in Panama...help!!!

hi. i just got this phone in the states before coming down to panama. it is verizon, but i called them and they gave me the code and now the phone is unlocked....but i can't get coverage here in panama. i've tried sim cards from a few of the local operators and none of them seem to work. i sure hope someone can help....here's what i've done so far: (oh, pls b patient, i'm a bit of a technophobe)
-unlocked sim. phone gives me sim lock is disabled message....that means i'm good to go, right/
-set phone to gsm only mode.
-software is androaid version 2.3.4
verizon global services told me that everything was as it should be and that the phone should work w/ a local sim card so i'm not really sure where to turn to......hopefully someone here can help. verizon also told me that the phone should work on the frequencies here. i have a claro sim card, but have also tried movistar, digicel, and masmovil. i was told that they use either 850 or 1900.
so, i'm totally stumped. hopefully i'm missing something stupid....btw, tried the sim in other phones (from europe and panama) and it worked w/ them. don't think it's a hadrware problem, but am i missing something? is there a setting change? do i need some kind of software update?
thanks!
update- get cell phone reception w/ gps on
don't know if this will help anyone get to the bottom of this issue, but i realized that when i have the gps on, i get full bar coverage. unfortunately, i can't leave the app on in the background. this makes me think it could be a hardware issue....bad antenna? anyone have any ideas
Same problem
I have the same issue as OP. Got my phone sim unlocked, and it runs on SenseMOD-2012-05-18-225643 Android 4.0.4.
For once I did a factory reset, skipped verizon activation (can´t do and won´t work because I´m not in the USA and do not have a verizon SIM or service), set my network preference to GSM/WCDMA, and the network wasn´t working.
Rebooted, my network is identified as soon as it starts, but then it goes to "No Service". Try to search for network but my carrier does not appear.
Any help?
EDIT:
Playing around with the phone, setting GSM as your network and restarting the phone let me make phone calls. No internet though and the APN was configured correctly. The "E" symbol for the internet blinked once in a while, but never got service.
Also, playing around some more, got my phone to not recognize the network again by removing the SIM another time. This sucks.

Sprint SM-G965U(flashed with SM-G965U1) NOT REGISTERING ON VERIZON'S NETWORK.

So I have the Galaxy S9 plus, sprint edition. I flashed it with the U1 firmware. Then paid to have it network unlocked. It was reading every SIM card, but sprint & boost (bcuz to get are n not compatible with the unlocked SO/S9+.
So, I decided to switch to either Verizon or AT&T. Verizon won it due to the year long Subscription. Anyway before I went to Verizon. Every SIM card I placed in the card worked no problem. Well, Verizon activated the phone told me the steps to do. I powered off the device. Like I was told & placed the new sim card in.
When I booted up my device it, rebooted with the "New Network provider Sim inserted" & did so. It came on with service. Then rebooted again & came back on with service... Yet again. Then out of nowhere it rebooted, but this time it came on with it any signal bars. Saying, the folowing messages "Searching For Service", "No Network Connection" and "Emergency Calls Only".
I have did all the trouble shooting that I have came across. Including using the Chimera Tool to try & fix the network connection. But it repeatedly failed. I took it to UbreakIFix & they said the phone's fine. That it has to be Verizon's side with the problem. Can anyone help me fix this issue.
I have placed other Sim cards into the device & they work but not one Verizon Sim will.
CharmedWhovian said:
So I have the Galaxy S9 plus, sprint edition. I flashed it with the U1 firmware. Then paid to have it network unlocked. It was reading every SIM card, but sprint & boost (bcuz to get are n not compatible with the unlocked SO/S9+.
So, I decided to switch to either Verizon or AT&T. Verizon won it due to the year long Subscription. Anyway before I went to Verizon. Every SIM card I placed in the card worked no problem. Well, Verizon activated the phone told me the steps to do. I powered off the device. Like I was told & placed the new sim card in.
When I booted up my device it, rebooted with the "New Network provider Sim inserted" & did so. It came on with service. Then rebooted again & came back on with service... Yet again. Then out of nowhere it rebooted, but this time it came on with it any signal bars. Saying, the folowing messages "Searching For Service", "No Network Connection" and "Emergency Calls Only".
I have did all the trouble shooting that I have came across. Including using the Chimera Tool to try & fix the network connection. But it repeatedly failed. I took it to UbreakIFix & they said the phone's fine. That it has to be Verizon's side with the problem. Can anyone help me fix this issue.
I have placed other Sim cards into the device & they work but not one Verizon Sim will.
Click to expand...
Click to collapse
some steps would include making sure its switched to global mode in network settings and setting up the apn

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