[Q] S3 lost coverage after few months - Galaxy S III Q&A, Help & Troubleshooting

Hi. I bought an s3 for my wife .
The phone was unbranded and. She was using TescoMobile until 4 days ago when she lost signal coverage.
We swapped the sim card from Three network and everything was working.
The next day we went to Tesco to get another sim card to test and nothing happened. The phone picks up the internet signal but we receive a message "your sim card is not allowed to connect to this network".
We went to Meteor shop - this same not allowed, O2 this same, Vodafone is working.
I installed the 4.1 Android to see if it works. The same happened. I unlocked the phone to see, but the same, only two networks are working with the phone.
What do you think has happened with the phone ?
Phone is going to Samsung for the warranty repair on Tuesday.

If the phone works properly with a different SIM then it's the SIM/network problem.

robogo1982 said:
If the phone works properly with a different SIM then it's the SIM/network problem.
Click to expand...
Click to collapse
Hi,
So where is the issue? I rooted the phone, unlocked, changed the ics to jellybean and the same issue arises.
In Ireland there are the following network providers:
1) Tesco mobile (using o2 network) - sim was working for few months and stopped.
2) O2 - their sim cards are not working
3) Vodafone - sim is working fine
4) Meteor - sim is not working
5) Three - sim is working fine
6) Emobile - not checked.

suriv84 said:
Hi,
So where is the issue? I rooted the phone, unlocked, changed the ics to jellybean and the same issue arises.
In Ireland there are the following network providers:
1) Tesco mobile (using o2 network) - sim was working for few months and stopped.
2) O2 - their sim cards are not working
3) Vodafone - sim is working fine
4) Meteor - sim is not working
5) Three - sim is working fine
6) Emobile - not checked.
Click to expand...
Click to collapse
One JB test leaked build will not fix a problem .
3 Sims work fine and rule out a phone problem .
Do the two non working sims work in other phones in the same location .
Possible you have faulty network settings /APN .
I would say back up data and try a factory reset first except you now have non Samsung firmware on the phone .
That voids warranty so you will need to remove it before returning .
your sim card is not allowed to connect to this network".
Not allowed possibly phone blocked IMEI .
jje

JJEgan said:
One JB test leaked build will not fix a problem .
3 Sims work fine and rule out a phone problem .
Do the two non working sims work in other phones in the same location .
Possible you have faulty network settings /APN .
I would say back up data and try a factory reset first except you now have non Samsung firmware on the phone .
That voids warranty so you will need to remove it before returning .
your sim card is not allowed to connect to this network".
Not allowed possibly phone blocked IMEI .
jje
Click to expand...
Click to collapse
I was talking with Tesco Mobile - IMEI is not blocked on their network.
Original software 4.0.4 have this same issue. APN setting are ok - checked with the HTC Wildfire also with Tescomobile.
Repair company said that they don't care if is custom rom, they will put back the original software and start testing the phone, everything under warranty.
Once i went to friend who bought a S3 from Tesco mobile and i his sim card is not allowed to connect on my wife phone. Wife sim car is connecting to the internet but to network

Related

only one network give me No SIM error

after i flash HD Revilution ROM its gave me NO SIM Error and there what i do After that
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Do you have the correct CSC and modem for your network .
Have you actually entered the network APN settings etc .
jje
JJEgan said:
Do you have the correct CSC and modem for your network .
Have you actually entered the network APN settings etc .
jje
Click to expand...
Click to collapse
yes and still same problem
any help please
iam still waiting
if only one network works properly - most likely your phone was not fully unlocked, and after flash it returned to SIM-locked status.
spamtrash said:
if only one network works properly - most likely your phone was not fully unlocked, and after flash it returned to SIM-locked status.
Click to expand...
Click to collapse
its was working and its fully unlocked all SIM worked only one network sau no SIM
is there any help

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Hi this is starting to really bug me now Im unable to register on a network I get signal bars but only get emergency calls only tried dfferent sim cards and reverted back to latest official stock to no avail any suggestions please
As per multiple identical posts .
First is your IMEI correct
Are your mobile network settings correct
sim card correct and tested
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jje
Check your IMEI number. Sometimes, when we flash custom ROM, the phone looses its IMEI number. If it's true, you must use an EFS backup to restore it.
Second solution : your mobile phone was blacklisted (if it was considered as stollen).
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Hi thanks for the reply I have been searching I've checked my imei in status and it matches details under battery compartment i'm still paying for the phone (pay weekly) so no reason it would be blacklisted ok just tried another different sim card on Vodafone official s3 stock rom and it registered hmmm im on talktalk which uses voda I know this sim works but i'll get them to send me a new one thanks for your time guys

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I bought a used galaxy s3 that seems fine except that i can't get it to work with my sim card. I always get the searching & not registered on network when trying to dial. The sim card works fine on other phones. the phone is running android 4.3... Any idea of what could be the problem and how to fixx it?
Are you sure that you phone isn't sim locked?
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#
Sounds odd as it should take other sims without needing a rom flash.
May as well flash BTU. Don't bother setting everything up on first boot...instead go to settings and do a factory reset to clear the mixed CSC. When you reboot it'll be pure BTU CSC.
Added bonus is you can try the 6.0 beta then if you like.
after looking at the phone i noticed that the imei on the back cover wasnt the one in the phones hardware . i rang the guy up on my sons behalf . seems he owns a phone shop , as soon as i mentioned cert files etc he was only too quick to offer a full refund today . seems it wasnt a legit phone at all
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