[Q] No 3G with 4.1.2 JB (Stock Rom) - Galaxy S II Q&A, Help & Troubleshooting

As the title says i cannot connect my SGS2 to my Mobile Network. No Status in the Top Bar. Connects to WIFI ok.
I have the correct APN settings.
I have flashed the International JB Stock ROM, does the MODEM file need to be from the UK?
I am with o2 and they said to enable packet data but that option isnt listed on the Handset. I think what they mean is 'Mobile Data' which is
ticked.
Sorry if this has already been posted elsewhere...Lots of posts to trawl through.
Thanks for any replies.
Steve

It's probably your efs data that got wiped. Hope you've got a backup.
Can you make calls?

Thanks.
No havent got a backup, its a new to me Handset from another person. Yes i can make and receive calls.
I used to have a GT-I9000 so i am pretty clued up on these devices although a little rusty.
Whats that EFS data?
It was on 4.0.4 ICS previous to me flashing via ODIN v1.85.

The efs contains your imei amongst other thing.
Dial *#06# and check your imei matches with the one printed under the battery. If it doesn't then it is your efs data.
Did you make a nandroid before flashing? If so, restore that.
If not, follow this thread to get it sorted. Good luck.

Ben81 said:
The efs contains your imei amongst other thing.
Dial *#06# and check your imei matches with the one printed under the battery. If it doesn't then it is your efs data.
Follow this thread to get it sorted. Good luck.
Click to expand...
Click to collapse
Cheers my friend.

BaggyBizzle said:
Cheers my friend.
Click to expand...
Click to collapse
Got excited too soon as i have the Same IMEI. I will try a different SIM Card it may be that, i think its quite old and from another phone a
couple of years ago that was reactivated. Seems a likely candidate although O2 says that everything looks correct on their side.
Any other replies still welcome.
Cheers.

I think losing your efs data without a backup is as bad as it gets so it sounds like good news. You wouldn't have been able to make calls if it was that anyway, but worth crossing that off the list of possibilities.
Is it definately a 3G sim? Other than that I'm out of ideas.

BaggyBizzle said:
As the title says i cannot connect my SGS2 to my Mobile Network. No Status in the Top Bar. Connects to WIFI ok.
I have the correct APN settings.
I have flashed the International JB Stock ROM, does the MODEM file need to be from the UK?
I am with o2 and they said to enable packet data but that option isnt listed on the Handset. I think what they mean is 'Mobile Data' which is
ticked.
Sorry if this has already been posted elsewhere...Lots of posts to trawl through.
Thanks for any replies.
Steve
Click to expand...
Click to collapse
Dude the ROM is not final build so expect some bugs in it:good:

Related

Can't make calls after official ICS update through ODIN!

I followed this guide ( http://www.youtube.com/watch?v=ihFRsquw_8E&feature=g-hist&context=G2816d54AHT2JnXgAAAA) to get the official ICS update.
I know the update was for Nordic countries and I live in Sweden so I flashed it through odin.
Now I can't make phone calls, send text messages or connect to my 3G network.
I asked the uploader and he said "Go in to recovery mode and wipe cache and factory reset" so I did.
The phone then started up in Polish and the problems were still there.
Can anyone help?
Try entering AP settings.
Have you checked for service, do you see your imei number in 'About Phone'?
Sent from my GT-I9100 using Tapatalk
Have you checked for service, do you see your imei number in 'About Phone'?
Click to expand...
Click to collapse
The IMEI number says "00499901064000" and yes I have checked for service but it can't connect.
Try entering AP settings.
Click to expand...
Click to collapse
How do I do that?
NiTi9 said:
The IMEI number says "00499901064000" and yes I have checked for service but it can't connect.
How do I do that?
Click to expand...
Click to collapse
Have you backed up your EFS folder before flashing?
What you have is a standard IMEI, meaning, that IMEI is for phones that are displayed on stores.
First, try re-flashing the package. If that doesn't work, re-flash only the modem.
If even that doesn't work, follow this guide : http://forum.xda-developers.com/showthread.php?t=1264021
BrandoHD said:
Have you checked for service, do you see your imei number in 'About Phone'?
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
xethor said:
Try entering AP settings.
Click to expand...
Click to collapse
Phistachio said:
Have you backed up your EFS folder before flashing?
What you have is a standard IMEI, meaning, that IMEI is for phones that are displayed on stores.
First, try re-flashing the package. If that doesn't work, re-flash only the modem.
If even that doesn't work, follow this guide : http://forum.xda-developers.com/showthread.php?t=1264021
Click to expand...
Click to collapse
I dont think I have since I don't even know what an EFS folder is
I am going to try all of these.
By the way when you guys (assuming you too have an 19100 and have upgraded to the official ICS rom) press and hold the power button, do you get the menu for silent mode, 3g network, shut down etc or does it just shut down immediately?
My friend have a similar problem too, he got a problem with CSC Unknown and he can't call, text and all phone features....
The real problem where i can find the flashable CSC files because all link are dead
Sent from my GT-I9100 using Tapatalk
NiTi9 said:
I dont think I have since I don't even know what an EFS folder is
I am going to try all of these.
By the way when you guys (assuming you too have an 19100 and have upgraded to the official ICS rom) press and hold the power button, do you get the menu for silent mode, 3g network, shut down etc or does it just shut down immediately?
Click to expand...
Click to collapse
Well... You should ALWAYS backup your /efs folder. Your /efs folder is literally your phone and is what distinguishes a phone from a gaming mini-console
I have that menu, and I'm sitting on LPB, waiting for something more stable LPB...
Always always always backup that damn EFS folder
That imei number is a generic one so you have lost your unique number.
Try this threadhttp://forum.xda-developers.com/showthread.php?t=1264021
There are others to search for. As a last resort search for odia. He/her has the knowledge to fix it.
Otherwise return for jtag repair.
Sent from my GT-I9100 using XDA
I'm sorry to hear you lost your IMEI but I hope this will teach you to inform yourself better before doing something like flashing in the future. Anyway simply reflashing the firmware might help it, it certainly helped me twice.
If you get it back make sure you back it up, so you wont have to go through this again.. There are a bunch of apps that can do it for you so it really isnt all that hard.
Anyway, good luck!
Sent from my GT-I9100 using Tapatalk
Phistachio said:
Have you backed up your EFS folder before flashing?
What you have is a standard IMEI, meaning, that IMEI is for phones that are displayed on stores.
First, try re-flashing the package. If that doesn't work, re-flash only the modem.
If even that doesn't work, follow this guide : http://forum.xda-developers.com/showthread.php?t=1264021
Click to expand...
Click to collapse
Tried reflashing the package, and it doesn't work.
I only have one big (622 mb) .tar.md5 file, should I flash that in the modem?
I am having the exact same problem, although my IMEI number seems fine. By that I mean it is not the generic one previously posted.
I can not connect to my carrier network, or do anything else network related for that matter.
My phone also turns off when I tap the power button once, I do not get that standard menu.
Any suggestions?
Atrum-Amicus said:
I am having the exact same problem, although my IMEI number seems fine. By that I mean it is not the generic one previously posted.
I can not connect to my carrier network, or do anything else network related for that matter.
My phone also turns off when I tap the power button once, I do not get that standard menu.
Any suggestions?
Click to expand...
Click to collapse
Factory reset .
Flash new firmware .
jje
NiTi9 said:
I followed this guide ( http://www.youtube.com/watch?v=ihFRsquw_8E&feature=g-hist&context=G2816d54AHT2JnXgAAAA) to get the official ICS update.
I know the update was for Nordic countries and I live in Sweden so I flashed it through odin.
Now I can't make phone calls, send text messages or connect to my 3G network.
I asked the uploader and he said "Go in to recovery mode and wipe cache and factory reset" so I did.
The phone then started up in Polish and the problems were still there.
Can anyone help?
Click to expand...
Click to collapse
Here's the fix: http://www.youtube.com/watch?v=iY9cDkj4CCw! If it works, make sure to make multiple backups of your efs folder on sd card/pc/drop box etc!! You can view your efs folder using the Root explorer app!! Here's the download link for the kTool fix: https://play.google.com/store/apps/details?id=net.hellcat.droiddev.ktool&hl=en! Good luck!

i9300 Unable to connect/register to network!

Hey guys, I'm in desperate need of some assistance here.
I have an international Galaxy S3 i9300, rooted and with CWM.
I flashed Criskelos XXDLH8 ROM yesterday, and I followed the instructions to the dot.
The flash seemed to be problem free.
However, once the phone booted and i was on the new ROM, i tried to make a call, but I kept getting an error message saying "not registered on network".
I instantly freaked out, and wiped my phone+cache, and flashed stock Samsung ICS (XAALE8) via Odin.
The phone booted normally into the stock ICS. But instead of seeing signal bars on the status bar, all I can see now is just a circle with a line through it . :crying:
I did some research on the net, and didn't really find anything to help me, which is why I'm here, seeking ANY help from you guys.
I'm freaked out guys! Any assistance would be SO appreciated! thank you!
don't panic
go settings >wireless and networks more settings > access point names
make sure you have something in there
mine says Vodacom ( internet)
look up apn for your area.
otherwise you can try flashing a different modem for your region or even try another region from here
https://www.wuala.com/UpInTheAir/SGS3/Modems/I9300/ICS/CWM/?key=n0KVwtIMZPE8
thanks to upintheair check stickies in q and a
hope this helps :thumbup:
Sent from my GT-I9300 using xda premium
no luck
gordonx10i said:
don't panic
go settings >wireless and networks more settings > access point names
make sure you have something in there
mine says Vodacom ( internet)
look up apn for your area.
otherwise you can try flashing a different modem for your region or even try another region from here
thanks to upintheair check stickies in q and a
hope this helps :thumbup:
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
Hey mate, thanks for the suggestion.
But my problem arent my APN settings.. I am not able to obtain access to the network anymore All i can see instead of signal bars is a circle with a line through it :crying:
And yes, Ive tried flashing different modems, and ive tried various ICS kernels as well.. no luck
My IMEI has not changed or been deleted (EFS seems to be intact), in case you were wondering.. hmm...
I have no idea whats wrong with my S3
hmmm try perhaps restoring efs folder from backup
sorry seems like you've tried all my ideas.
could be something really silly like sim card wrong way or not nicely in check that.
soz
Sent from my GT-I9300 using xda premium
gordonx10i said:
hmmm try perhaps restoring efs folder from backup
sorry seems like you've tried all my ideas.
could be something really silly like sim card wrong way or not nicely in check that.
soz
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
Just restored my EFS folder from a backup i made.. no luck.. hmm..
My sim card works on my spare phone, so thats not the problem.. do u think it might be an issue with my sim card slot?
I mean, i didnt physically drop the phone or anything, this issue seems to have originated after flashing that custom ROM...
Thanks anyways for your suggestions mate, appreciate everything I really hope someone can help me out here, im kinda lost..Sigh
Im also encountering the same proble. But instead, i have network signal (there are signal bars), but i am un able to send/receive messages and calls. I still have the same IMEI number but my Serial Number became 00000000.
Please help!
shakir999 said:
Just restored my EFS folder from a backup i made.. no luck.. hmm..
My sim card works on my spare phone, so thats not the problem.. do u think it might be an issue with my sim card slot?
I mean, i didnt physically drop the phone or anything, this issue seems to have originated after flashing that custom ROM...
Thanks anyways for your suggestions mate, appreciate everything I really hope someone can help me out here, im kinda lost..Sigh
Click to expand...
Click to collapse
Hi shakir999, I bought a phone and I am having exactly the same problem. Please let me know if you were able to fix your phone, I'm almost trying to find a mainboard in the market, because everithing I have tryed in therms of SW did not work. Please let me know what have you done to fix and if you fixed your phone. Thanks!!!
harrysc said:
Hi shakir999, I bought a phone and I am having exactly the same problem. Please let me know if you were able to fix your phone, I'm almost trying to find a mainboard in the market, because everithing I have tryed in therms of SW did not work. Please let me know what have you done to fix and if you fixed your phone. Thanks!!!
Click to expand...
Click to collapse
hey dude,
i tried pretty much every software fix i could find.. but no luck i returned the phone and got it replaced. Apparently, there was an issue with the radio on the motherboard.
Goodluck mate!
cheers
Are you sure the firmware is suitable for your model for your phone's factory? There are at least three regions of producing Galaxy S3 International version. Some final product made in Vietnam and Korea has a lot of problems and need to be changed to the board made in China due to software problem. You should try using the "Firmware Upgrade And Initialization" in the "Tools" in the Samsung KIES 2.5 because it will download the latest official firmware according to your model and serial number and it will wipe your phone at the same time.
evantkh said:
Are you sure the firmware is suitable for your model for your phone's factory? There are at least three regions of producing Galaxy S3 International version. Some final product made in Vietnam and Korea has a lot of problems and need to be changed to the board made in China due to software problem. You should try using the "Firmware Upgrade And Initialization" in the "Tools" in the Samsung KIES 2.5 because it will download the latest official firmware according to your model and serial number and it will wipe your phone at the same time.
Click to expand...
Click to collapse
Thanks for your support.
I tried to repair using the firmware update and initialization, but I could not find exactly where it is. I could reach a pop-up window saying that if my phone had a problem it would be listed in this window... Not sure if I am doing it correctly.
Do you have any tutorial link/post where I can find the proper instructions for it? I am familiar with odin, but not kies...
Thanks in advance!
harrysc said:
Thanks for your support.
I tried to repair using the firmware update and initialization, but I could not find exactly where it is. I could reach a pop-up window saying that if my phone had a problem it would be listed in this window... Not sure if I am doing it correctly.
Do you have any tutorial link/post where I can find the proper instructions for it? I am familiar with odin, but not kies...
Thanks in advance!
Click to expand...
Click to collapse
You can find this function in your Samsung KIES 2.5 which is the software to be installed in your computer. Then you will see the top bar, one of them is Tools and you will find the function in the Tools menu.
Most likely a locked phone ...
shakir999 said:
Hey guys, I'm in desperate need of some assistance here.
I have an international Galaxy S3 i9300, rooted and with CWM.
I flashed Criskelos XXDLH8 ROM yesterday, and I followed the instructions to the dot.
The flash seemed to be problem free.
However, once the phone booted and i was on the new ROM, i tried to make a call, but I kept getting an error message saying "not registered on network".
...
Click to expand...
Click to collapse
It sounds very much like a locked phone that was unlocked in a suboptimal way
Unless you have the original EFS (on which you might try to do a cleaner unlock) you will be "condemned" to always need a patched modem.
The short story is that network locking is done in a protected/checksumed database in the EFS partition and some older unlocks were not even attempting to keep the database "clean" - they were forcing a flag there but since there was some other check at a later time you need a special "patch" in the GSM modem code - that is located in a different partition and might be a little different from one country/carrier to another. Unfortunately the modem is (usually) updated with major ROM updates, so you have now lost that patch - but you can take a look below for a fix:
http://forum.xda-developers.com/showthread.php?t=1918601
The bottom line is that (unless you restore original EFS and do a very clean unlock) you will always have to re-apply the modem after you program a new full ROM!

[Q] Not registered on network

Hello I have a big problem, after I installed a new and updated ROM my phone won't work on any carrier, so here's what happened:
1.I had the ROM FoxHound_Sniper_Wolf_LPD_ICS_GSII_By_SnakeS and it worked great until the GPS started failing so I decided it was time for a change (until now the phone was working flawlessly with carriers and such)
2.I first tried to install the ROM ParanoidAndroid 3+ ROM Galaxy S2 but I forgot to do a wipe first and then I wiped the phone and re-installed the ROM and it still didn't work.
3.I installed WanamLite Clean & Fast JB 4.1.2 v14.3 without errors until I tried to turn on data networking (I had my APN setup by then) and it didn't turn on so I tried calling and this would pop up:"Not registered on network".
4.I try to fix the problem by going to network providers and selecting my network provider and it said: "Unable to connect, try later", so I try selecting the automatic setting and it gave me the same error, so I kept pressing the select automatically setting until it said: "Registered on network" so I try to call again and still gives me the same error "Not registered on network".
5.I try to go back to my old ROM (FoxHound_Sniper_Wolf_LPD_ICS_GSII_By_SnakeS) and it still gave me the error "Not registered on network".
6.I also tried some other ROMs: RR_JB_V3.1.3_AOKP_4.2.1_I9100 and RootBox-JB-i9100-V4.1 and the phone still won't work.
7.I go back to the WanamLite Clean & Fast JB 4.1.2 but this time it's v14.6
PS:it says "emergency calls only" in the drop down menu
info:
county: Israel
carrier: Golan Telecom
phone status: I got it unlocked from the company Cellcom
Network mode: GSM/CDMA (Auto mode)
ROM: WanamLite Clean & Fast JB 4.1.2
Galaxy sII GT-1900T
SSN:-I900TGSMH
Can anyone help me with this please?
Is your imei ok. Is it there ? Or is it 0000000. Is imei blocked? Have you flashed another modem to see if its that? Most important question atm is do you have a working bk up of your efs just in case its that? Dont post imei btw. Dose data work but not calls?
andrewwright said:
Is your imei ok. Is it there ? Or is it 0000000. Is imei blocked? Have you flashed another modem to see if its that? Most important question atm is do you have a working bk up of your efs just in case its that? Dont post imei btw. Dose data work but not calls?
Click to expand...
Click to collapse
I tried flashing another modem and the problem is still happening, I don't know what imei or efs mean and also nothing works on the phone not the data nor the sms or the calling
it says emergency calls only
Go to phone settings and then about phone then phone status look down that bit you will see imei. Is it 0000000? Galaxynoob lol what a name.
andrewwright said:
Go to phone settings and then about phone then phone status look down that bit you will see imei. Is it 0000000? Galaxynoob lol what a name.
Click to expand...
Click to collapse
It's not 0000000 it's a whole bunch of numbers should I send them to you?
No thank you. Is it second hand phone? How long have you had it? Seems like imei is ok unless its blocked. So you have flashed modem it had before you flashed roms yes? Have you tried going bk to stock firmware?
andrewwright said:
No thank you. Is it second hand phone? How long have you had it? Seems like imei is ok unless its blocked. So you have flashed modem it had before you flashed roms yes? Have you tried going bk to stock firmware?
Click to expand...
Click to collapse
how do I unblock the imei?
O dear. Is it second hand? How long you had it?
andrewwright said:
O dear. Is it second hand? How long you had it?
Click to expand...
Click to collapse
since the beginning of 2012 but it used to work fine and I've been installing a lot of roms on it
Go to google and check imei isn't blocked mate. Also delete apn and restore them first.
andrewwright said:
Go to google and check imei isn't blocked mate. Also delete apn and restore them first.
Click to expand...
Click to collapse
Hey man I tried this fix: http://forum.xda-developers.com/showthread.php?p=17587351
and when I did step 3 it was fixed but now I have the generic imei (004999010640000)
all you had to do was checking your IMEI online to see if it was blocked listed.
You now ended up with a generic IMEI.
You followed the first 3 steps right?
Please tell me you backed up the EFS folder.
Sent from the little guy
gastonw said:
all you had to do was checking your IMEI online to see if it was blocked listed.
You now ended up with a generic IMEI.
You followed the first 3 steps right?
Sent from the little guy
Click to expand...
Click to collapse
But the phone works again, what's wrong?
EDIT: yeah I backed it up
Alright then, restore that back up.
Write down those numbers and check them out here:
http://www.imei.info/
Sent from the little guy
gastonw said:
Alright then, restore that back up.
Write down those numbers and check them out here:
http://www.imei.info/
Sent from the little guy
Click to expand...
Click to collapse
How do I restore the efs do I just copy and replace it and then do a factory reset?
How did you back it up?
Sent from the little guy
gastonw said:
How did you back it up?
Sent from the little guy
Click to expand...
Click to collapse
I copied the efs to my pc and another one in my sdcard on the phone
Had to go then. Daughter had to go to bed Lol. Did you check if its blocked? Does your county do that block imei thing? Prob not if that imei is working. Does it all work Tex,calls,data? Follow what @gastonw has said mate. If it don't work after go Bk to that imei and think yourself lucky it works
andrewwright said:
Had to go then. Daughter had to go to bed Lol. Did you check if its blocked? Does your county do that block imei thing? Prob not if that imei is working. Does it all work Tex,calls,data? Follow what @gastonw has said mate. If it don't work after go Bk to that imei and think yourself lucky it works
Click to expand...
Click to collapse
So I don't have to restore it?, and yes everything works mms, sms, calling, data.
Thanks for everything friends!
If it works it works,leave it

No network !

hello guys!!
I've been flashing roms since many years but last night I just stuck to a problem of which I cant find any solution and yes NO NETWORK at all no matter what aosp/aokp I flash , I go like wipe factory,wipe cache,wipe dalvik cache but no use ........please guys help me what should I do now ???an yeah just to let u guys know that THe sim is perfect and is running cool along perfect network on my Nokia but not on my phone which so sad......so guys help me out and yes THANks.
Difficult to give you any help, you haven't give any information on what went wrong.
Try posting what happened, if you have matching imei under battery to phone info and which modem version you flashed last.
You do have efs backup, right?
boomboomer said:
Difficult to give you any help, you haven't give any information on what went wrong.
Try posting what happened, if you have matching imei under battery to phone info and which modem version you flashed last.
You do have efs backup, right?
Click to expand...
Click to collapse
actually last night I went flashing 2,3 roms one after the other and just when I flashed [ROM][i9300][4.2.2] Illusion v2.1 - 7|16|13 all went wrong ..........after that I tried several times to flash crdroid rom and other aosp n aokp roms they get installed but not giving network.
now lemme tell u about sim ....I toook it out as it wasnt me giving me network thought I should flash wihtout sim but it didnt work as well,
I didnt try to match imei.
intrudar said:
actually last night I went flashing 2,3 roms one after the other and just when I flashed [ROM][i9300][4.2.2] Illusion v2.1 - 7|16|13 all went wrong ..........after that I tried several times to flash crdroid rom and other aosp n aokp roms they get installed but not giving network.
now lemme tell u about sim ....I toook it out as it wasnt me giving me network thought I should flash wihtout sim but it didnt work as well,
I didnt try to match imei.
Click to expand...
Click to collapse
Does your IMEI match the one under the battery .
If not restore your backed up EFS folder .
Fail to backup its a service centre paid for repair .
Samsung Galaxy S3 General Sticky Roll-Up Thread ***Stickies found here!
If imei and serial number are not corrupted. Check your APN settings. You may want to flash stock rom to see if that works. Backing up efs folder highly recommended.
ashraf sharif said:
If imei and serial number are not corrupted. Check your APN settings. You may want to flash stock rom to see if that works. Backing up efs folder highly recommended.
Click to expand...
Click to collapse
Try Ariza patch. Search XDA and downlowd apk. You may need to install the patch every time you update the software.
goscid said:
Try Ariza patch. Search XDA and downlowd apk. You may need to install the patch every time you update the software.
Click to expand...
Click to collapse
Lets work out the problem before throwing solutions
rootSU said:
Lets work out the problem before throwing solutions
Click to expand...
Click to collapse
What, let facts stand in the way of an opinion......that's not the Fox News way!! (sorry meant to say forum way...typo)
pinsb said:
What, let facts stand in the way of an opinion......that's not the Fox News way!! (sorry meant to say forum way...typo)
Click to expand...
Click to collapse
haha.
I ran out of thanks
Dial *#06# in your phone's dailer and if your IMEI matches the IMEI on your phone's box or under battery then its something else.
If it says something like 0049xxxx or null or 0000... Your IMEI is corrupted.
In the case of corrupted IMEI you must have a backup of your EFS folder in order to restore it. If you have backed up your EFS then you're safe. If not.... Only Samsung can fix it for you, provided you have warranty left.
I had the same problem.. my IMEI changed to 0049xxxxxx by installing Custom Rom. Got it fixed for free by Samsung PM me if you want to know how.
georgy95 said:
Dial *#06# in your phone's dailer and if your IMEI matches the IMEI on your phone's box or under battery then its something else.
If it says something like 0049xxxx or null or 0000... Your IMEI is corrupted.
In the case of corrupted IMEI you must have a backup of your EFS folder in order to restore it. If you have backed up your EFS then you're safe. If not.... Only Samsung can fix it for you, provided you have warranty left.
I had the same problem.. my IMEI changed to 0049xxxxxx by installing Custom Rom. Got it fixed for free by Samsung PM me if you want to know how.
Click to expand...
Click to collapse
Theres a little more to it now. Please read the imei /efs thread in general > sticky roll-up thread
Sent from my GT-I9300 using Tapatalk 4

[Q] Not registered on network

Hello lads. I have really really big problem with my I9300. I upgraded jellybean from 4.1.2 to 4.3, everything works perfect, but one main problem appears, I can't call, and receive phone calls. My samsung says that i'm not registered on network. I tried to install modems I've rooted device, and nothing happens. Today I decided to downgrade 4.3 to my previous 4.1.2. And surprise surprise, same problem Not registered on network. By the way my IMEI is normal. What should I do next? Any advices? Thanks
LawrenceS3 said:
Hello lads. I have really really big problem with my I9300. I upgraded jellybean from 4.1.2 to 4.3, everything works perfect, but one main problem appears, I can't call, and receive phone calls. My samsung says that i'm not registered on network. I tried to install modems I've rooted device, and nothing happens. Today I decided to downgrade 4.3 to my previous 4.1.2. And surprise surprise, same problem Not registered on network. By the way my IMEI is normal. What should I do next? Any advices? Thanks
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Hi.
Check for your Serial Number.
Go to, Settings, More, About Device, Status.
If it's 0000. It's corrupted. Also check for Baseband sometimes it shows unknown.
You have corrupted your EFS.
Backup your current EFS before you do anything from this point forward. You can try using PhilZ CWM.
Best bet is try to flash latest 4.3 Rom using Odin.
I9300XWUGML4
Try to restart your phone.
Yes, my serial number is 000000...
LawrenceS3 said:
Yes, my serial number is 000000...
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Same problem here. In my case, the problem is slightly different. the phone was a XXEMG4 that i had to downgrade to unlock and consequently recover IMEI. After recover IMEI (I didn't make an efs backup…) i upgrade to 4.3 and can't register on network.
I've been making a lot of research on the subject and i understand i should made a backup of the efs, but i didn't…. My question now is:
Is there any possible way to restore the efs module in v2 permanently, so we can flash another rom without losing it ?
thats the 1.000.000£ question for me
UNDERSTAND FIRST
http://forum.xda-developers.com/showthread.php?t=2362743
Network IMEI EFS
http://forum.xda-developers.com/showthread.php?t=2393289
Downgrade and network problems .
http://forum.xda-developers.com/showthread.php?t=2531221
JJEgan said:
UNDERSTAND FIRST
http://forum.xda-developers.com/showthread.php?t=2362743
Network IMEI EFS
http://forum.xda-developers.com/showthread.php?t=2393289
Downgrade and network problems .
http://forum.xda-developers.com/showthread.php?t=2531221
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Click to collapse
Cool, but will this method fix the issue permanently ? I mean, if i flash the phone after i have to patch the modem again to get network working ?
Thanks
Guys I have this question about backing up efs folder.... The problem is that whenever I backup my efs folder I succeed to create the backup in .img format but fails when creating it in .tar format. Any resons ?
Sent from my GT-I9300 using Tapatalk
BrunoWestone said:
Cool, but will this method fix the issue permanently ? I mean, if i flash the phone after i have to patch the modem again to get network working ?
Thanks
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Your efs is corrupt, patched modem may enable it to again be read but will have to be patched reach time you flash new firmware/modem.
Sent from my GT-I9300 using Tapatalk
boomboomer said:
Your efs is corrupt, patched modem may enable it to again be read but will have to be patched reach time you flash new firmware/modem.
Sent from my GT-I9300 using Tapatalk
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Mate a related question to this if your IMEI is OK and serial no is corrupted,if I make a backup would that back up be OK to restore if I restore it at a different time ?
Sent from my GT-I9300 using Tapatalk
arsal_93 said:
Mate a related question to this if your IMEI is OK and serial no is corrupted,if I make a backup would that back up be OK to restore if I restore it at a different time ?
Sent from my GT-I9300 using Tapatalk
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Makes no sense, you can restore a backup at any time. If you've already corrupted efs without making a backup then things can only get worse if you don't start making backups before you flash.
Lads. Now my IMEI and serial looks alright, but there's still one but. Internet is working with my SIM card, but I still can't call and send messages. In status:
Network: Meteor
Mobile network type: UMTS
Service state: Out of service
Signal strength: -99 dBm 7 asu
What should I do now? By the way, I've tried to reset factory settings, restart couple of times, when I'm trying to register on network, device says me TRY LATER. Oh, and when I turning my phone on, and PIN shows, it saying that my SIM CARD IS LOCKED, EMERGENCY CALLS ONLY
Sim locked to network ask your vendor to unlock .

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