[Q] Unlocked S2 Not Registered On Network - Galaxy S II Q&A, Help & Troubleshooting

Hi I have recently rooted and unlocked my S2. It recognises any sim put into it but if i try to make a call i get 'not registered on network' error. Apart from this the phone is in fully working order. I have set up manually the APN and recognises the sim but still get error.
Any help much appreciated.

Check your IMEI in settings/about phone/status. If it begins with '0044...' (whatever you do, do not post your actual IMEI number here !) you've found the source of your problem.
If your IMEI is OK, two possibilities that spring to mind are the phone is IMEI blocked (check with your carrier) or your carrier hasn't set something up properly at their end (again, check with them).

Hi, thanks for the reply. My IMEI no starts 3533 should this be ok? I also have signal on my phone but in settings says disconnected. I have also tried other sims but have same issue. Do you think i should contact the network or samsung direct or is there anything i can try?
Thanks again

danreedman said:
Hi I have recently rooted and unlocked my S2. It recognises any sim put into it but if i try to make a call i get 'not registered on network' error. Apart from this the phone is in fully working order. I have set up manually the APN and recognises the sim but still get error.
Any help much appreciated.
Click to expand...
Click to collapse
How exactly did you root your phone? Did you flash a new kernel only? Or also a new rom?
Because new roms also tend to flash a new modem in to the phone. Although this is not common, but a modem can change the way the phone talks to the cellphone carrier. Check in your "about" sections under settings whats your "baseband". Note that you can flash a new modem independently from the rom and kernel

guysoft said:
How exactly did you root your phone? Did you flash a new kernel only? Or also a new rom?
Because new roms also tend to flash a new modem in to the phone. Although this is not common, but a modem can change the way the phone talks to the cellphone carrier. Check in your "about" sections under settings whats your "baseband". Note that you can flash a new modem independently from the rom and kernel
Click to expand...
Click to collapse
OK this makes sense I did flash a new ROM the baseband number is I9100XXLPQ. Does it matter what modem I use and should this match the baseband?

I am having the exact same problem with 2 different carriers, it only shows a 3rd carrier in dominican republic which is claro and i have not been able to test it with a claro sim card, how did you guys resolve the problem.?

Related

[Q] Can not register on GSM network

Hi,
I have bought an used Samsung i9100 phone, that is like new and everything is working, except GSM network.
It seems that it can get a signal, and it identifies the networks of my country. But it cant connect to any of them. I have tried with different SIM cards.
Also, I tried flashing it with some ROMS to see if it solved something, also tried to use the EFS fixing tools available on XDA for I9100.
Also tried the EFS tool to unlock the phone, and it does give me a number to unlock it, but when I try to unlock it, it says that the operation was unsuccessfull.
Any ideas on what is happening ? I can see my IMEI properly on the Android about page.
Thanks
Post lacks information .
What firmware what baseband what network what area of use .
jje
does this info help ?
see screenshots
does this sim work in otha phone ,check wiv otha sim on ur phone.may b the sim is curropt..
rocky23 said:
does this sim work in otha phone ,check wiv otha sim on ur phone.may b the sim is curropt..
Click to expand...
Click to collapse
He had tried with other Sim cards
yagami said:
Hi,
I have bought an used Samsung i9100 phone, that is like new and everything is working, except GSM network.........
Thanks
Click to expand...
Click to collapse
We take a lesson from you...when we are buying a used phone atleast put our sim and make a call before paying....
Can try another ROM, if problem remains it seems hardware defect... smart seller Poor byuer..
yagami said:
Hi,
I have bought an used Samsung i9100 phone, that is like new and everything is working, except GSM network.
It seems that it can get a signal, and it identifies the networks of my country. But it cant connect to any of them. I have tried with different SIM cards.
Also, I tried flashing it with some ROMS to see if it solved something, also tried to use the EFS fixing tools available on XDA for I9100.
Also tried the EFS tool to unlock the phone, and it does give me a number to unlock it, but when I try to unlock it, it says that the operation was unsuccessfull.
Any ideas on what is happening ? I can see my IMEI properly on the Android about page.
Thanks
Click to expand...
Click to collapse
do a factory reset and check
my other phone is a Samsung Galaxy S, which i have for more than a year.
I Flash it almost daily so i am not new to the works
I tried almost everything , kernel, modem , rom , unlocking , recovery of the EFS.
Dont know what to do more. It doesnt seem to be hardware related, because even signal strenght seems good.
It just says "emergency calls only" and cannot register to a network : says " unable to register, try again later".
That reads as possible IMEI problem. Or antenna even.
Sent from my GT-I9100 using xda premium
yagami said:
my other phone is a Samsung Galaxy S, which i have for more than a year.
I Flash it almost daily so i am not new to the works
I tried almost everything , kernel, modem , rom , unlocking , recovery of the EFS.
Dont know what to do more. It doesnt seem to be hardware related, because even signal strenght seems good.
It just says "emergency calls only" and cannot register to a network : says " unable to register, try again later".
Click to expand...
Click to collapse
so you have a phone that shows strong signal but would not accept your sim ?
you cant register to network usually means that the phone is locked to a certain network and that your sim is not of that network
you can try calling emergency and if you get a connection hang up or tell the guys on the other side you made a mistake and apologize;
at least that way you know there is no problem with the antenna
but seeing your screenshots it appears that you do have UMTS? but no GSM?
this is weird and looks like the phone was locked to a certain network and then unlocked but not properly unlocked
again it was asked before: what country are you in?

Not registered on network, again

This thread is outdated and not related to the new problem with EFS coruption. Solutions proposed here wont help you if you lost your network after downgrading a ROM from MF6 to earlier.
Ok it's not the first thread about this but no one seems to have an answer. I'm trying again.
I flashed a custom ROM on a friend's phone i9300. After the flash the phone keep saying "Not registered on network". I tried everything I know.
I changed modem
I changed ROM (3X) (with full wipe)
I returned to stock
I installed GetRil (changed the baseband)
I installed Galaxsim (phone already unlock)
when I try to set the APN I get a message "registered on network" but when I do a phone call I got "Not registered on network"
Is there anyone who knows any way to solve this problem?
New sim? What all works?
Kremata said:
Ok it's not the first thread about this but no one seems to have an answer. I'm trying again.
I flashed a custom ROM on a friend's phone i9300. After the flash the phone keep saying "Not registered on network". I tried everything I know.
I changed modem
I changed ROM (3X) (with full wipe)
I returned to stock
I installed GetRil (changed the baseband)
I installed Galaxsim (phone already unlock)
when I try to set the APN I get a message "registered on network" but when I do a phone call I got "Not registered on network"
Is there anyone who knows any way to solve this problem?
Click to expand...
Click to collapse
omg thanks for creating this thread, I had no time to do it I HAVE THE EXACT PROBLEM
I wanted to install Cyanogenmod android 4.2.2 BUT SINCE IM A NOOB NO ONE WARNED ME THAT I HAD TO DO A EFS BACKUP OR whatever is called, thing is my IMEI is ****ed up, and it does says Not registered on network with my Sim card on it, it's Brand new sim card i tested it on another Smartphone and it Works GOOD, I tried like crazy looking up on the internet so many ways to fix it but the only way apparently it's using a software called octopus and a hardware wich costs a bunch of $ therefore im sure there must be a way to save that money .
i did Factory reset, tried another stock rom 4.1.2
tried airplane mode turning on and off, tried looking for networks automatically, and nothing it just says not registered on network, please help, my imei IS not barred i also am against robbery here.
please help
... Please
b-eock said:
New sim? What all works?
Click to expand...
Click to collapse
everything works fine on the phone except the call/ 3g. She came with her own Sim card but she left me the phone and I'm using my own Sim card and same result.
Now I see that the IMEI SV is 01, My phone Number is UNKNOWN( is it normal?)
Kremata said:
everything works fine on the phone except the call/ 3g. She came with her own Sim card but she left me the phone and I'm using my own Sim card and same result.
Now I see that the IMEI SV is 01, My phone Number is UNKNOWN( is it normal?)
Click to expand...
Click to collapse
yep at the end of mine says 01 aswell
Get a new sim from your carrier. Either your sim tray is broken or your sim card is. Sim card is cheap/free to replace so try that first.
b-eock said:
Get a new sim from your carrier. Either your sim tray is broken or your sim card is. Sim card is cheap/free to replace so try that first.
Click to expand...
Click to collapse
nope that doesn't work the problema is in the Smartphone imei i think some kind of bug,
zomgiloveyou said:
omg thanks for creating this thread, I had no time to do it I HAVE THE EXACT PROBLEM
I wanted to install Cyanogenmod android 4.2.2 BUT SINCE IM A NOOB NO ONE WARNED ME THAT I HAD TO DO A EFS BACKUP OR whatever is called, thing is my IMEI is ****ed up, and it does says Not registered on network with my Sim card on it, it's Brand new sim card i tested it on another Smartphone and it Works GOOD, I tried like crazy looking up on the internet so many ways to fix it but the only way apparently it's using a software called octopus and a hardware wich costs a bunch of $ therefore im sure there must be a way to save that money .
i did Factory reset, tried another stock rom 4.1.2
tried airplane mode turning on and off, tried looking for networks automatically, and nothing it just says not registered on network, please help, my imei IS not barred i also am against robbery here.
please help
... Please
Click to expand...
Click to collapse
Kremata said:
Ok it's not the first thread about this but no one seems to have an answer. I'm trying again.
I flashed a custom ROM on a friend's phone i9300. After the flash the phone keep saying "Not registered on network". I tried everything I know.
I changed modem
I changed ROM (3X) (with full wipe)
I returned to stock
I installed GetRil (changed the baseband)
I installed Galaxsim (phone already unlock)
when I try to set the APN I get a message "registered on network" but when I do a phone call I got "Not registered on network"
Is there anyone who knows any way to solve this problem?
Click to expand...
Click to collapse
sounds like (both of you) your EFS folder is corrupt - the only way i've read of repairing it is to have a back up. service center for repair is the only option AFAIK.
The IMEISV means nothing, don't even worry about it. Know what you're talking about before you blurt out crap.
b-eock said:
The IMEISV means nothing, don't even worry about it. Know what you're talking about before you blurt out crap.
Click to expand...
Click to collapse
mwahahahah "blurt out crap" PMSL :laugh:
Hehe hehe... hehehehe... fk u..
Hehehehe!
“BUT SINCE IM A NOOB NO ONE WARNED ME THAT I HAD TO DO A EFS BACKUP“
No one should have to warn you! Do some reading first! Fk your imei!
b-eock said:
Get a new sim from your carrier. Either your sim tray is broken or your sim card is. Sim card is cheap/free to replace so try that first.
Click to expand...
Click to collapse
Like I said I've use my friend SIM and my SIM both makes no difference on the phone. Maybe it's the tray
Kremata said:
Like I said I've use my friend SIM and my SIM both makes no difference on the phone. Maybe it's the tray
Click to expand...
Click to collapse
Usual suspects .
Sim you tried another .
Sim carrier unusual to be damaged .
IMEI wrong .
No phone number details standard with many roms .
Network details not entered or incorrect or wrong CSC .
Wrong modem unlikely .
Best to restore phone to original firmware .
http://forum.xda-developers.com/showthread.php?t=1978840
Return to service .
JJEgan said:
Usual suspects .
Sim you tried another .
Sim carrier unusual to be damaged .
IMEI wrong .
No phone number details standard with many roms .
Network details not entered or incorrect or wrong CSC .
Wrong modem unlikely .
Best to restore phone to original firmware .
http://forum.xda-developers.com/showthread.php?t=1978840
Return to service .
Click to expand...
Click to collapse
First I restored the phone with the nandroid backup I made just before flashing. (still not register on network)
Then I restored the phone to stock Samsung with Odin (still not register on network)
The IMEI is still there(most thread I read with this problem people lost their IMEI)
The phone can connect to the network because it can retreive the time from the network.
If I make a network operator search it finds China Unicom(This is my sim card) and when I choose it it says "register on the network" but as soon as I try to call, I get the "not register on network" again.
I thought the IMEI might be block as it might be a stolen phone but I made a search on two IMEI database and it says CLEAR.
I flashed 3 Asian modems( I used to have a S3 I know the XXELJ2 was working with my sim card) and same result.
Have you tried flashing a different modem to your device and reporting the problem to your provider.
May sound obvious but the provider's logs may clearly show what is wrong and they can report it back to you.
Sent from my GT-I9300 using xda premium
JJEgan said:
Usual suspects .
Sim you tried another .
Sim carrier unusual to be damaged .
IMEI wrong .
No phone number details standard with many roms .
Network details not entered or incorrect or wrong CSC .
Wrong modem unlikely .
Best to restore phone to original firmware .
http://forum.xda-developers.com/showthread.php?t=1978840
Return to service .
Click to expand...
Click to collapse
OMG you remind me of ABATURR IN STARCRAFT 2 HoTS
hahaha cool
---------- Post added at 10:47 AM ---------- Previous post was at 10:06 AM ----------
zomgiloveyou said:
OMG you remind me of ABATURR IN STARCRAFT 2 HoTS
hahaha cool
Click to expand...
Click to collapse
anyway, tried this metod too now, and still the same ~
Hey guys, had a very similar problem to kremata (everything in EFS folder seemingly ok (IMEI and S/N were fine)), and for me it got fixed by applying Azira's Patch ( http://forum.xda-developers.com/showthread.php?t=1918601 ).
However this solution only works by rooting and if you try to return it to stock it will reverse to being a 500$ PDA sadly.
In any case, the phone is now fully functional (calling/SMS/mobile data).
hey
i can fix ur problem
djhiti said:
i can fix ur problem
Click to expand...
Click to collapse
ok

Unable to Register On network

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
correct modem and csc.
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).
Network
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

[Q] Phone settings say g900f but odin says g900t

Hi Guys,
2 months ago I bought a Samsung s5 in Hong Kong.
While travelling through South East Asia this device worked fine.
While traveling through New Zealand (Old home) this phone worked fine.
While traveling through America (New Home) this phone worked fine for the first 2 weeks (on the metroPCS network).
The problem:
Randomly after 2 weeks the s5 stopped connecting to the metroPCS mobile network even though the network was available (btw metroPCS uses the T-Mobile network). It gives errors such as network not available or cannot register with network.
Things I have tried:
-Im sure the APN settings of the phone have not changed and I have double checked to see if they are correct.
-replacing the sim card with another does not fix the issue
-soft and hard reset of the phone does not fix the issue
-Getting metroPCS to refresh the service on this number does not fix the issue
Other important info:
-This phone was purchased in hong kong but it is from the Philippians according to Kies's firmware information (XTC is the country code)
-It is running a custom allianceROM that must have been installed by someone in hongkong
-The device is rooted (superuser app installed)
-the model number as shown in settings is g900f BUT when attempting to flash with odin the phone displays g900t and fails to flash the latest Philippians verison of kit-kat
I have 2 questions:
1. Any ideas why my network connection has suddenly self destructed (and how to fix)?
2. Would flashing a stock ROM to my s5 help? and if so why is there conflicting information on which model I own (g900t/g900f)?
Please help. I do have some know how on flashing android devices but i've really hit the wall on this one guys!
Cheers,
Yetti.:cyclops:
It's not uncommon for the model # to be different with a custom rom as that is a very easy thing to edit in the build.prop. It should tell you under the battery which one it is. As far as the network issues, check to see if the baseband and IMEI are still there and not listed as unknown or incorrectly. It's possible you could get away with flashing the appropriate modem that matches with your update and that might work better in this region vs the previous one.
Please list the Alliance rom version and baseband version here in case it's relevant to your issue.
More info
Im not sure if this helps but looking through the build.prop file in the system folder my ro.product.local.region=GB
When in recovery mode the region is set to XTC (Philippians) using mutli-csc.
Also my IMEI number seems ok and is NOT blocked.
Cheers. Yetti :cyclops:
Baseband and rom etc
Thankls for your reply!
Sorry when you say "under the battery symbol" do you mean in /odins boot script on the device/ or /in settings on the phone/?
Baseband is g900TUVU1ANCH
Build Num: AllianceROM_G900F_XXU1ANCF
If the "no network" issue can be solved with the current firmware that would be the most desirable solution but going through the flashing process may be a good idea for my learning process, and will help with future updates.
Do you think getting back to a stock rom would help me?
tHANKS AGAIN!:cyclops:
Model confirmed to be g900t
Sorry i didn't understand the "under the battery" thing. I was lost in software world. The sticker under the physical battery says SM-900T so i guess that confirms that it is a t-moble verison (and the baseband is therefore correct).
I will try to flash the T-Mobile stock image to the phone and see if that works.
Also i will try to flash a modem (after i work out which one i need).
Cheers, Yetti :cyclops:
Current status.
Flashed the stock T-Mobile firmware to the phone. No success.
Flashed new modem to the phone. No success.
Will go to the T-Mobile store tomorrow to see if they can help (I doubt it but i have to exhaust all the options).
Any more help would be appreciated...
cheers, yetti:cyclops:
By under the battery I mean like to take off the battery cover of the phone and pull the battery out and look at the sticker found there.
G900t.
es0tericcha0s said:
By under the battery I mean like to take off the battery cover of the phone and pull the battery out and look at the sticker found there.
Click to expand...
Click to collapse
Yep it says g900t (see above)
As per flashing a modem. I have heard that it is possible to flash any modem for any version of the s5 to the phone. Some work well and others not so much. I have tried 2 T-Mobile modems (baseband) the G900TU1ANCH and the G900TUVU1BNG3 with no success. Do you have any recommendations for a modem to try (or even a custom ROM that might help?)
Cheers,
Yetti :cyclops:
I know that you mentioned they refreshed the service for your number, but do they have the correct IMEI in the system for your account? Metro makes a big deal about that now and you can't just take your SIM from another phone and pop it in a new one and go like you can with pretty much every other service (Cricket is like this too now).

gt-i9300 imei correct, but sim is locked

Hi,
the problem is:
I have a galaxy s3 (i9300) which i'm not able to unlock. The *#06# shows the correct IMEI, which is printed on the label behind the battery.
I've tried editing nv_data.bin, but can't seem to find the 00181460 address.
Galaxsim says "unable to load nv data"
The problems started about a month after i upgraded to 4.4.4 (back to n00t rom). One morning the phone just kept saysing 'unfortunately com.android.phone has stopped working'
I tried reflashing it, then tried using cm13.
Everything works fine, except there's now a sim lock on my phone..
running out of ideas, so thought maybe you guys have some fresh ones.
Thanks!
The standard repair-procedure is to flash firmware by Odin.
hello, i have the same problem. i tried lot of rom to solve the problem but it don't do anything. Also flashing firmware by Odin don't work. I'm happy that i'm not alone.
sorry for my bad english.
Hello, have you ever tried to flash the stock firmware with Odin ? For me, it did not solve the problem. If someone has a solution. ..:crying:
The phone is network locked or is the SIM card locked with a pin?
audit13 said:
The phone is network locked or is the SIM card locked with a pin?
Click to expand...
Click to collapse
hi, the phone is network locked.
The only method that may work to unlock the phone for free is the regionlockaway app with root and an older modem.
Was the phone ever network unlocked ?
Thanks for your answer .
Yes, the phone was network unlocked when i bought it.
i tried regionlockaway, but it don't work.
I don't know what to do.
Not sure why the phone would relock. You tried installing a stock rom?
I tried this too, but it don't worked.
I tried to change The modem, the CSC, but nothing happens, the phone remains network locked.
Did you check to make sure the phone was network unlocked when you first got it?
Yes, it was unlocked.
no network after custom rom 4.4.4
Hi all!
I also have the same problem after a cutom Rom install, >no Network, Hope you be of help as i expect XDA always do :angel:
No network is not the same as bein network locked.
If the phone can't be unlocked for free, an unlock code must be purchased.
audit13 said:
No network is not the same as bein network locked.
If the phone can't be unlocked for free, an unlock code must be purchased.
Click to expand...
Click to collapse
My Gt-i9300 shows my sim as it is LycaMobile but also gives me 'Emergency calls only; so i cant call and etc... is there a way to restore it to full stock firmware ? because i also flashed baseband modem etcetera , and ididnt change to Gsm only ( i read somewhere that be a solution...?
Changing to gsm only will only give the phone data access at edge speeds.
To return to stock, flash a rom from sammobile.com using Odin.
I bought an unlocked phone to change operator when i want and i still have to pay ? Oh misery... :'(
cedp974 said:
I bought an unlocked phone to change operator when i want and i still have to pay ? Oh misery... :'(
Click to expand...
Click to collapse
Did you confirm the phone was network unlocked when you first got it? The phone supports your carrier's radio frequencies? SIM card works in another phone?
You can use turbosim for unlock but i dont know what happen to you. Its only suggestion.
You can't network unlock an s3 for free if it has ever been updated to 4.3.
Beamed in by telepathy.

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