yashsingh1/xdaforums huggingface dataset:
[Galaxy S III General] kramiel16:
thank you.

---------- Post added at 03:54 AM ---------- Previous post was at 03:45 AM ----------

i just want to share what happened to my galaxy s3 i9300 with "not registered on network"

i am not a developer or noob, just a average user/modifier. been playing/flashing around my s3 with lot of customs rom for about 2years and never been backup my EFS.

it all started when i updated from 4.2.2 (omega) to 4.4 (cm11 kitkat). Then i updated my CWM recovery v6.0.3.2 after that I try to flash camera_hx-mod_1.52_cwm.zip from recovery and when I try to reboot this pop-uped at it is new to me

"rom may flash stock recovery on boot THIS CAN NOT BE UNDONE" then i have the options of - no, - yes disable recovery flash, and - go back

i hit “yes” without googling what to choose then that is the time the problem started, “not registered on network” but before updating my CWM recovery everything works well and smooth.

So I tried to restore my backup from cwm that I know that my phone was working fine (2013-09-24.07.28.45 , 2013-12-13.10.27.51) and not of them works.

i been searching the net to solve my problem, I been to lot of websites, forums (specially xda) but no luck at all this are some of sites I tried

http://samsung-updates.com/device/?id=GT-I9300

http://xdaforums.com/showthread.php?p=48842752#post48842752

http://xdaforums.com/showpost.php?p=45038238&postcount=466

http://xdaforums.com/showthread.php?t=1918601

http://xdaforums.com/showthread.php?t=2437839

http://www.youtube.com/watch?v=iTHEOy2tMtc

http://www.youtube.com/watch?v=Pai4BH3AWq8

http://www.youtube.com/watch?v=i7K6RDVRBhs

http://www.youtube.com/watch?v=JVtmMyfF5N0

http://xdaforums.com/showthread.php?t=2393289

http://xdaforums.com/showthread.php?t=2529127

http://xdaforums.com/showthread.php?p=48842752#post48842752

Restoring backup will not work. So I tried to flashing “modem_XXDME4__.zip & Modem DDEMG2.zip” fix through CWM ; flashing STOCK ROM 4.3 to 4.2.2 to 4.1.2 back to 4.3 to 4.1.2 (XTE-I9300XXEMF6 (4.1.2) , MBM-I9300XXELLA, VD2-I9300XXUGML2 ) through ODIN. I always check if my IMEI will change but it didn’t.

None of this works, still the “not registered to network” persist.

Then this morning I gave it a try to flash XTE-I9300XXEMF6 (again) and I checked my imei (*#06#) and my imei was changed so I googled this:

imei changed "not registered to network" i9300 i came to this

http://xdaforums.com/showthread.php?p=49010684#post49010684

This guy zazoo24 comment strikes me. That is I was dragged to this thread.

Now my s3 is working fine now.

I hope this will save time for those noob/average like me that first time encounter this problem and not to be confused to many links/website for the fix. This is the only fix for this problem.

Thank you and God bless you
[Galaxy S III General] S3forLife:
Will this work on a 4.3 JB for S3?

Will this work even after the phone has been repaired in a repair shop because IMEI no. was lost?
[Galaxy S III General] mfq:
plz guide how to use your emergency modem file ?
[Galaxy S III General] JustArchi:
Flash via CWM.
[Galaxy S III General] mfq:
@ JustArchi

my problem was

i upgrade 4.3 via odin then this problem comes

not register on network

imei is ok and serial is ok but

i downgrafe MG4 4.1.2 imei is 0094 and not register on network

how to solve this problem ???
[Galaxy S III General] JustArchi:
I'm afraid your EFS is corrupted. If my MG4 standalone modem (fix) doesn't work then I'm afraid nothing will.
[Galaxy S III General] sina0193:
help

hi

i upgrade my phone from 4.1.2 to 4.3

i los my network conection

at the firdt i root and instal recovery

i install modem.(mh1)

and again not work conection

my bild number is:xwugml4

help me plz
[Galaxy S III General] JuveAddict96:
that's strange, when you upgrade you're phone efs should not be corrupted. Are you sure you JUST upgraded your s3 to 4.3? Do you know which was your previous baseband?
[Galaxy S III General] fprado06:
THANKS Sir its still working...

i flash it in CWM mode now my s3 had original IMEI number at got network signal...
[Galaxy S III General] mgbosshogg:
Thanks a million!!! Flashing the modem file saved my ass after downgrading from 4.3 to 4.1. Not registered on network / IMEI crazyness no more. Thanks again.
[Galaxy S III General] yankeexda:
Hi guys. Need help. I have updated from 4.1.2, to 4.3 via OTA. I have rooted before and backed up my EFS, I assume that it was EFSv1 since it was XXMG4 below modem and rom.

Now for clarification, I am on 4.3 DXUGMK1 Baseband (MK6 build) does this mean I am on EFSv2 now? i have not flashed 4.3 via Odin.

TIA
[Galaxy S III General] rizwan1522:
stock rom

Hello sir, my phone is originally from UK, unlocked in pakistan. I am currently using it in pakistan with custom rom 4.2.2. now i have downloaded official 4.1.2 latest rom available in pakistan and want to install. Plz guide me can i use this official pak rom on my phone which iz originally from UK??

Thanx alot.
[Galaxy S III General] ermacwins:
So whats the deal? I got a S3 with 4.3 stock rom and want to flash an aosp 4.4.2 based rom. How should I backup the efs folder?
[Galaxy S III General] cornelus2009:
hello, i want ask something.

i upgraded from 4.1.2 to 4.3 and of course i get the "emergency call only" message.

repaired network with z3x tool at service.

now i want to ask if is safe to flash official 4.3 version again with odin and not get again "emergency calls only", because i want device official , non rooted

Thanks.
[Galaxy S III General] nico3990:
Can't call --'

hi guys !!

First sorry for bad english, i'm from france !!

I really need your help !! find a solution of my problem --'

I have a S3 I9300 since a long time now.

The problem is, i can't call or receive a call ( i can't heard the voice and nobody can heard me )

But my phone is working cuz with skype everything are working.

My phone can call or receive a call but no noise of voices.

For send message, use internet, or the wifi, everythings work ! just calls don't work --'

( you can understand it's very sad to can't call with a phone :/ )

this problem arrived after this new update ( in january ) ...

and i never saved or rooted my phone before this update.

So now i have the new folder of EFS.

I tried a lot of things: reboot, factory reset, tryed this rom : I9300XXELL4_I9300BOGELK2_BOG

but i lost my emei. so i used kies to repair the emei problem.

after a couple of month i decided to try another time to find a solution.

so yesterday i rooted, saved my EFS ( with EF explorer ) and flash the modem XXEMG4 of JUstArchi ( glad ) found on this forum.

but nothing changed..

now i have this official ROM: JSS15J.I9300XXUGNA5 (4.3) with the XXEMG4 of Justarchi.

What can i do ???????

please help me :)
[Galaxy S III General] capaldi:
Will this fix my S3 even if I have no EFS folder backup?
[Galaxy S III General] nico3990:
EFS

Depend your problem ! did you lost your EMEI actualy ?

A last update change your EFS folder. So if you return with a old modem, you will have a EMEI problem ( Cuz the old modem can't read the new EFS folder ).

if it's your problem, yes you need this modem ;)
[Galaxy S III General] fguinan:
You Sir, are a Legend!!!

Thanks.
[Galaxy S III General] louie_yo:
do you still have the zip file? i am in desperate need of it. please help! Thanks!

---------- Post added at 04:09 AM ---------- Previous post was at 04:00 AM ----------

or does anyone still have it? when i try to download it from dropbox it says:

Error (509)

This account's public links are generating too much traffic and have been temporarily disabled!

so i'm begging all of you who might still have it, please help me!
[Galaxy S III General] :
i need this zip too, can someone reupload, the bandwidth seems exceed...

tkz in advance
[Galaxy S III General] bialy16pl:
Error (509)

Hi,

could You reload file, please. :cyclops:
[Galaxy S III General] SignetSphere:
1. Only if you downgrade from the MG4 modem. For example you're in the MG4 one and the modem doesn't work for you then you decided to downgrade to an older modem lets say MF6's modem it won't work since it changes the way the EFS is stored.

It will also happen if you upgrade the modem while you're using an older one. For example you have the MF6 modem then you upgraded to the MG4 modem after this you won't be able to downgrade to an older modem anymore unless you backed up your EFS prior to installing the MG4 modem.

2. No. You have Odin for that.

3. Corrupting the EFS partition is highly plausible on some scenarios but changing the modem doesn't necessarily corrupts it.

I hope my explanation doesn't confuse you lol.
[Galaxy S III General] lucalunardi:
delete
[Galaxy S III General] SignetSphere:
i've update my post :D please re-read it :D
[Galaxy S III General] lucalunardi:
-- OK ;)

You explanation is clear, but...

I understood the fact that changing modem in any way before/after/with/and/whatever between any rom and MG4 it might get me in trouble, that's fine since I don't want to use a modem that is not the one that comes with the rom.

My main concern is:

If I downgrade the full rom, from MG4 to, let's say, EMC2, all stock and untouched via Odin, will I have problems with efs/imei/signal?

Thanks SignetSphere and Zoot1 for your answers!!
[Galaxy S III General] SignetSphere:
No. You won't have any problems at all since you flashed a fresh stock firmware. ;)
[Galaxy S III General] lucalunardi:
Here you go! Maybe the OP should add this information so others can find it easily!

Thanks again SignetSphere! Sorry to bother!
[Galaxy S III General] SignetSphere:
Nope that's perfectly fine :good:
[Galaxy S III General] ysrini:
If you downgrade from full stock MG4 to full stock MC2: My guess is that the problem will still exist, until the EFS is restored.
[Galaxy S III General] lucalunardi:
Since the device is working properly now, and there is a lot to be better understood about this change I'd better be safe than sorry. I'm not going to mess with anything until we get more information. I'll be following this thread closely to see what's going to unfold and what I'll be able or not to do!

Thanks folks!
[Galaxy S III General] SignetSphere:
I think not. Because just like JustArchi said this issue doesn't corrupt the efs it only changes the format. So if you flash a full stock rom (on his case MC2) it will revert all of the content on the flash memory back to stock. Same goes for it's EFS.
[Galaxy S III General] lucalunardi:
Any dev or fearless soul to test that? Since this is my only device and it was freakinly expensive I just can't test...

Sent from my phone using the "Send" button.
[Galaxy S III General] ysrini:
People in Note 2 section had the same exact problem. When they moved from any old complete stock (say MC3) to the latest complete stock MF6 (which had EFS folder modification problems), they were not able get the IMEI when they reverted back to the older stock ROM (MC3). S owhat they had to do to get over this was to

(1) Restore EFS or

(2) Stick with the latest modem which can read the modified EFS.

My guess is when you flash MG4 and get the EFS structure modified, and later go back to an older firmware : the older stock ROMs are not writing the EFS structure back to its earlier structure (i.e. the way it was before). Hence the old modems cannot read the IMEI stuffs. Hence EFS backups.

Someone kindly correct me if I'm wrong.
[Galaxy S III General] SignetSphere:
I see... overall just have an EFS backup then lol. I'm getting confused by this issue as well

so a backup of the EFS is really recommended since that is the only clear solution to the issue.
[Galaxy S III General] slaphead20:
Must admit that makes sense and was similar conclusion to mine......awaiting brave and foolhardy people to try this and confirm!
[Galaxy S III General] whiskerp:
Once you have started your device with the XXEMG4 modem installed (with any ROM or kernel) and the modem finds the IMEI in the old format it updates it and writes it back. The EFS nv-data.bin is NEVER flashed by ODIN. It is different on every phone. Once you have booted with the XXEMG4 modem the change is irreversible and you can never use an older modem again unless you happened to have made an EFS backup beforehand and are able to restore it.
[Galaxy S III General] slaphead20:
That was my understanding, backed up efs on day one in 5 different locations....safe as! ;)
[Galaxy S III General] IOIDroid:
i know this may sound weird but surely not many people will want to go back to an older version of the firmware, i know that even if we did by the EFS Changes we wouldnt be able to, i have messaged one of my dev friends from when i worked on the HTC Flyer and he is VERY VERY good with all things android and may be able to resolve this.
[Galaxy S III General] SignetSphere:
I see... so even if we do a mega wipe (using zoot1's script) then flash a stock rom (not MG4) the issue will still retain with the newly flashed firmware?

Btw your post should be in the OP. This should clear up the confusion that's happening now.
[Galaxy S III General] whiskerp:
I believe that is correct unless you can somehow do otherwise! The encrypted non-volatile binary IMEI format has been changed. Unless someone works out how to change it back or you have a backup you're stuck. It only affects the modem you can use, not the ROM or kernel (or in fact RIL - which is just three library .so files which interact with the modem. )
[Galaxy S III General] JustArchi:
It won't. Old modem won't be able to read new /EFS but won't corrupt it and flashing MG4 modem again will work.

It just means that new and old /efs aren't compatible. But you can easily flash any MG4 rom, change modem to f.e. XXEMB6 (if you know how) before first boot and you're fine. However if you don't have backup and already new /efs then you need to stick with MG4 modem. Yes, you can change roms but you need to stick with MG4 modem whole the time f.e. with my emergency zip which is compatible with all available roms.
[Galaxy S III General] airtemisa:
Yes, please! :)
[Galaxy S III General] andrep777:
Emergency zip

HI JustArchi

I WANTED TO DOWNLOAD YOUR EMERGENCY ZIP... BUT IT DOESNT WANT TO DOWNLOAD...

DO YOU HAVE ANOTHER DOWNLOAD LINK/ OR COULD YOU EMAIL IT TO ME?:good:
[Galaxy S III General] dpell79:
Thank you for this post
[Galaxy S III General] butch82:
hello, could you please attach the file to the forum ? Dropbox is getting stressed about the number of downlaod.

thank you ;)
[Galaxy S III General] unkn0000wn:
Anyone. Link for emergency zip is broken. Somebody reupload this file if have. Please
[Galaxy S III General] rhrs1987:
with stock 4.3 rom and no network

Archi, will your emergency zip remediate the problem with the stock 4.3 rom?. Baseband version I have in this rom is I9300XXUGMK6 (which I think must be efs v2, right? I still don't grasp the efs/radio/modem topic completely.) and, how would I succeed in changing efs to efs v2? don't want to lose my phone :(

Lastly, does it make a difference if I flash the stock rom using KIES instead of ODIN? will that fix all the efs to efs v2 thing? Many thanks and excuse my persistence, I'm quite desperate to find and answer and get back my phone to normal. I hope I'm understanding the issue correctly.

Many thanks in advance
[Galaxy S III General] Jenkone:
It's a modem problem?

Hello everyone.

I upgraded my s3 just bought via odin latest firmware is available on SamMobile (XXUGND5 with csc WINGNE1). Just finished, I realized that my imei was changed in 0049 ... and I could not make calls.

Thinking it was a stupid question, I updated, forcing, via kies, which put me firmware PDA: ND5 PHONE: NA8 CSC: NE1 (TIM). but the problem remained.

Can you solve? I did not back up the folder efs and do not know what to do because the file emergency.zip put at post # 15 by justarchi not download. Just install one (on any rom) and everything will be fine?

thank you

Update: i have found emergency.zip file in thread, flashed it on my device,but it still in "not registered on network". Any suggestions?
[Galaxy S III General] karvouik:
Hello,

I need the emergency zip file please. I have no network when I flash custom non samsung based roms.

Thank you
[Galaxy S III General] mihafiz:
emergency zip didn't help

Please download from the 15th post:

http://xdaforums.com/showpost.php?p=43946365&postcount=15

https://dl.dropboxusercontent.com/u/23869279/Temp/xxemg4.zip

I have just downloaded it a moment ago and flashed it. But it didn't help me. Anyone with any other useful suggestion?
[Galaxy S III General] karvouik:
I'm gonna try it mate

thanks
[Galaxy S III General] FxJohnnyEng:
My emergency ZIP is lost bro...

My emergency ZIP is lost bro... any other mirror? or can u reupload?
[Galaxy S III General] JustArchi:
https://mega.co.nz/#!3dIHQbzS!_eKAsXtVqaG5BCpWaPX3SiPrjxyEAHmkvNLmkNEIcZU
[Galaxy S III General] FxJohnnyEng:
WOW THANKS A LOT.... so much

So after i flash stock firmware via ODIN and then i flash this modem?

KIndly assist not really understand from the first post step u written.

THanks
[Galaxy S III General] UrduGeek:
Hi,

Sir your emergency Zip link is not working any more. can i get it please?? [MENTION=5161352]JustArchi[/MENTION]

---------- Post added at 04:48 PM ---------- Previous post was at 04:39 PM ----------

sorry i found in your second post, sorry to bother you.:fingers-crossed:
[Galaxy S III General] parengkokoy:
DIdnt fix mine.

Do I have to flash XXEMG4? then flash the emergency zip to fix the no network and no IMEI?
[Galaxy S III General] rhrs1987:
emergency zip

Hey Archi, I would like to download your zip to test if it solves my problem with my stock rom., but seems like your link is down. Can you provide a with a link? PM me if possible. Thanks!
[Galaxy S III General] tambe:
Hello, I have attempted your method and I continue having the imei 00049xxxxx, :(
[Galaxy S III General] !SINGH!:
Hi

Can someone reupload the Emergency zip?

or just attach here if it fits

Thanks
[Galaxy S III General] d1rekt0r:
I have philiz backup of my 4.2.2 Leak , does that backup contain efs?
[Galaxy S III General] gamal001:
If I extract any custom rom (XXEMG4) and replace the modem with any old modem . Then flash rom its okay ?
[Galaxy S III General] JustArchi:
Yes.
[Galaxy S III General] boomboomer:
Only if you did a custom backup of the efs partition, standard nandroid wouldn't have backed the efs up.
[Galaxy S III General] MattBooth:
Just out of interest, which file is changed? ALL files in the EFS folder, or just the nv_data.bin?
[Galaxy S III General] whiskerp:
The log file records a change to nv_data.bin which contains the phone's encrypted personality including IMEI.
[Galaxy S III General] MattBooth:
Ok, because I have a backup of just that file personally (duh, I program a backup of the EFS into my ROM - doesn't take backup of own EFS like I thought I had, go figure) LOL.

So, it's only that file?
[Galaxy S III General] JustArchi:
AFAIK file /efs/imei/mps_code.dat changes as well. It looks like last edit of this file was yesterday ~3 AM so same time when I was trying to solve new XXEMG4 panic.

Also 3 files from /efs/drm/playready - DxPlayReadyDB.hds + DxSecureDB + DxSecureDB_secondary

And of course standard files from /efs, including nv_data.bin(.md5), .nv_data.bak(.md5) and .nv_core.bak(.md5).

It looks like it's all, based on changed date.
[Galaxy S III General] d1rekt0r:
Can i backup my MG4 EFS folder with this ?

http://xdaforums.com/showthread.php?t=1901098

If not could anyone explain me how its safest and easiest to do, cus im really starting to panic ?
[Galaxy S III General] slaphead20:
I backed mine up with HC-ktool app, all seemed to work ok
[Galaxy S III General] boomboomer:
If you are already on MG4 then why panic, it's a good idea to backup your efs but it's too late if you wanted to downgrade and don't have a pre-MG4 backup.

I use philz recovery to backup the efs partition, mike skips tool kit will also do the job, there is also a specific thread in stickies.
[Galaxy S III General] d1rekt0r:
After using HC-ktool , i got 2 files in my sdcard "efs.tar" (50.5kb) and "efs.img" 20.0mb , those 2 im suppose to save right ?
[Galaxy S III General] slaphead20:
Yes, do a search on Google for his thread and do a full read up ;)
[Galaxy S III General] AdL2012:
hi guys...

right now im on stock XXEMF6 and my question is how do i make a backup on my EFS folder(my phone is not rooted)?

i just root my phone and then i do a custom backup from recovery mode or how?

thanks...
[Galaxy S III General] boomboomer:
Seriously? You can't even read the few posts above yours?
[Galaxy S III General] AdL2012:
i read all posts from page 1 to page 8 but nobody explain how to make this backup of EFS folder...i need just a simple answer
[Galaxy S III General] SignetSphere:
here http://xdaforums.com/showthread.php?t=1308546
[Galaxy S III General] TieNN89:
I'm a bit confused as to this issue people are experiencing

Is it the result of something they've done in the past?

I've only ever flashed stock roms and have never rooted the S3 so would I have any chance of experiencing this issue?
[Galaxy S III General] SignetSphere:
Please re-read the whole thread to see and understand the whole issue :) This issue is for users who flashed the MG4 firmware or it's modem and are unable to downgrade to an older modem. If your sticking with that setup I think this issue won't affect you unless you're already on the MG4 firmware and attempting to flash an older modem.
[Galaxy S III General] gsw5700:
Anyone using mg4 modem on 3 network UK? How is it?

Sent via TCP/IP
[Galaxy S III General] TieNN89:
Yeah I wasn't sure if I was reading it correctly because I didn't want to brick my phone :o

So from my understanding if I flash I9300XXEMG4 and stay on it and not go back to an older firmware then I shouldn't have this issue.
[Galaxy S III General] SignetSphere:
That's correct. ;)
[Galaxy S III General] TieNN89:
Awesome thanks

I'll look into backing up the EFS just in case anyway :D
[Galaxy S III General] SignetSphere:
That's good and it's a highly recommended thing to do :good:
[Galaxy S III General] biggary:
You sir, are a god!! works great
[Galaxy S III General] zadusimple:
In the first post it is mentioned that "DO NOT TOUCH ANYTHING RELATED TO mg4", does that mean we should avoid flashing EMG4 based rom ?
[Galaxy S III General] SignetSphere:
Not really. It's just a option stated by JustArchi :) I'm on MG4 firmware and I don't see any problems. It's just that if you attempt to flash the MG4 firmware without backing up the EFS partition then you're bound to stick with the MG4 modem since you won't be able to downgrade to an older modem cause the MG4 modem changed something on how it reads the IMEI.
[Galaxy S III General] boomboomer:
The OP is stating his option, which he's entitled to do but I think it is a little extreme. As long as you back up efs before you upgrade you can always go back. I'm on EMG4 and haven't had any problems.
[Galaxy S III General] zuluman:
i'm using imei repaired efs file. for that i have to patch every modem version for work with repaired efs. can anybody confirm that mg4 works with repaired efs file?
[Galaxy S III General] JustArchi:
Yes, this option is a little too extreme but I don't know that much info regarding new MG4 panic. Who knows, maybe new /efs won't be so stable and we can get problems in some days? You can't be sure, new is new, not stable. Until some time of course.
[Galaxy S III General] janres155:
Just a question. I backed up my my EFS from XXEMC2 then I upgraded to XXEMG4. Now my problem is I want to go back to XXEMC2, so should I just flash XXEMC2 and how about my EFS?
[Galaxy S III General] JustArchi:
First restore EFS from backup, then flash. All at once, without restarting.
[Galaxy S III General] txpxsx:
why do you call your flashable mg4 modem, "emergency" ? as if it is for temporary base only?

i used it with CM rom's, is it OK to just use your file?

thanks
[Galaxy S III General] JustArchi:
I called it emergency because you can use it everywhere and you need it if you want to use pre-xxemg4 rom with already modified EFS. That's all.