yashsingh1/xdaforums huggingface dataset:
[Galaxy S III General] danarama:
Repair shop can do but you should exhaust all options in this thread first

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[Galaxy S III General] :
I've set everything back to stock and the counters to 0 (No) , status is Normal and the rest Official.

I've red on Tweakers.net that Samsung will repair also bricked devices no mather if the user has used root or any custom roms.

So I just leave it like this, and will ship it.

Lets give it a change. And else I'll just pay the bill..
[Galaxy S III General] adizz4:
I had flashed cm and then flashed stock through ODin. I get no network(generic IMEI),I have no efs backup. Is there anyway I can fix this?

I tried the renaming fix, didnt work for me.

I'm new to samsung devices so please excuse my ignorance. :/
[Galaxy S III General] west421:
What modem contained stock.Try to flash stok or custom with modem MG4.It should be work.
[Galaxy S III General] adizz4:
I have no idea about modem version of stock. I tried all of EFS v2 basebands on CM 10.1 but I get no network. The stock I flashed has I9300XXEMC2, so I assume its EMC2.
[Galaxy S III General] danarama:
MC2 wont work with EFS v2.

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[Galaxy S III General] darki0xox:
excuse me to ask u to help me more clearly understand this part!

my s3 now on ME7.. so its efs v2.. when i backup efs and install old version of android maybe 4.0.2 or 4.1.2 it wont work?

Nd if i tried custom ROM what should i check before installing so i wont lose network
[Galaxy S III General] adizz4:
There's an MH4 my region, will that work?

Nvm, found it's release date to be September.
[Galaxy S III General] west421:
I beleive an MH4 will work for you.
[Galaxy S III General] danarama:
M = 2013

H = August.

4 = revision 4 (for that month)
[Galaxy S III General] :
I've set everything back to stock, including counter/binary 1 to No + Official and Status: Normal

Just didn't worked out with all the methods.

The IMEI keeps saying 0049....... and the s/n to 00000000

My i9300 is now on it's way to Samsung.
[Galaxy S III General] adizz4:
I flashed MH4 and I'm getting factory mode(Yellow text), I'll try the fix posted in OP and report back.

EDIT: I got out of factory mode but I still am getting 00499xxxxxxxxx IMEI and S/n 00000000. Should I try arizapatch?
[Galaxy S III General] :
With root explorer -> /efs -> Factoryapp folder -> press and hold factorymode file, then scroll down and select Text Editor (or something similar) and set OFF to ON.

EDIT: Good to see you're out of factorymode.

From this on I wasn't getting further, tried many things, but couldn't figure it out, so turned everything back to stock and make sure the flashcounter/binary was set back to No and Official / Samsung Official.

Unrooted and checked everything again, now it's shipped to Samsung

Now I read back to see new comments and see someone else has a 'maybe working for us' fix:

http://xdaforums.com/showthread.php?t=2507797
[Galaxy S III General] danarama:
Ariza patch (well Zuluman as Ariza only works before MG*) will not help if you have IMEI issues. It ONLY gives you network on serial 00000 if IMEI is correct, so you must fix IMEI first.

Looks liek you have corruption rather than anything else. If the basebands in post 1 dont return the IMEI, all you can do is play with backups of EFS (delete before retore etc) or get it repaired I should expect
[Galaxy S III General] RedRetro:
Just want to make sure

Just want to make sure I understand this correctly

I have an S3 with the following build number: JZ054K.I9300XXEMG4. Does this mean that I've nothing to worry about when it comes to flashing my device´with custom ROMs?
[Galaxy S III General] danarama:
It means you have EFS v2 so you cannot go backwards

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[Galaxy S III General] RedRetro:
Ah, that's not the way I understood it. I thought that since I have the EFS v2 I had nothing to worry about since it can read EFS v1 too. So what you're basically saying is that I have to use Android 4.1.2 or newer? Or is there anything else I should watch out for when installing a custom ROM to ensure that my network work correctly?

Thanks in advance,

RedRetro
[Galaxy S III General] danarama:
You can flash any rom however if it comes with a modem older than mg4, it wont work so just don't flash old stuff and keep the EFS v2 basebands from post 1 on your sd and you'll be fine

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[Galaxy S III General] sinoukevin:
HEY , thanks again for all what you are doing for us noobies :p life is a lot easier now we have tutoriels

so here's my story , i have a gt i9300x , with a VTU00M emmc chip so , SDS risk had to update to a newer 4.1.2 XXEMG4 , didn't backup my IMEI before , didn't know i should :/ , i tried to patch the new baseband and im still stuck with the 0049 as msg in the place of my IMEI , so wht shoud i doo ? thx for replay
[Galaxy S III General] danarama:
What do you mean "patch the baseband"?

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[Galaxy S III General] RedRetro:
Thanks for your answer! :)
[Galaxy S III General] boomwbb:
If you have the symptons above, The Ariza patch will fix you up. Worked for me.

Still weird how there isn't much information on this particular issue.
[Galaxy S III General] quaker1985:
i am running official miui v5 (4.1.1) and crdroid build 15 (4.3.3) with googy max 1.7.7 kernel.

my baseband is DDEMG2.

i want to know in future which rom i can fash to avoid any issues related to efs.

Currently i dont have any problem.

Thank you
[Galaxy S III General] danarama:
Its not about roms. Its about basebands.

If you have EFS v1, you can flash any baseband. If you have EFS v2,.only newer ones than you have now. Please read post 1. This is all covered.

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[Galaxy S III General] ErnestoD:
Hi

Im using a 4.1.2 rom with ariza patch (v0.2). I started using it after installing my first jellybean rom which led to the Not Registered to Network message

Every time I tried to move to an MG4 or newer baseband I lost network

I,ve installed Just Archi and Wanam rom (based on leaked 4.3) and again I get the No conection to Network

Rigth Now Im using Pardus Remastered 4.1.2 and everything´s working fine, got 2G and 3G. Ive also used CM10.2 roms without problems.

So does it mean that I Im stocked on 4.1.2 Sammy´s rom for ever??? What about the official release of 4.3.??

Please need some advice[
[Galaxy S III General] smokeyjones:
I have an S3 i9300 (Three network UK) which hung on boot (white logo). Tried clear cache - didn't work. Recovery showed that /system couldn't be mounted. Was able to root and flash CWM which then enabled me to pull off (via adb) data that wasn't backed up anywhere. Performed a backup from within CWM (although didn't check whether /efs was included or not) then tried restored factory. Still hanging on boot. Flashed I9300XXALE8_I9300H3GALE4_I9300NELE4 and the phone booted and appeared well although I didn't check IMEI number and didn't have the SIM at the time so don't know whether that worked at that point or not. Flashed I9300XXDLJ1_I9300H3GDLJ1_I9300NEDLI1 to update and all still appeared good but replacing the SIM showed no network and on checking IMEI found it to be 0049...

Not sure if CWM backed up the /efs or not? Would restoring the original CWM backup help or not? Current Baseband is I9300NEDLI1 and Build is JRO03C.I9300XXDLJ1.

Any options?

Thanks.

---------- Post added at 02:03 PM ---------- Previous post was at 01:53 PM ----------

I have an S3 i9300 (Three network UK) which hung on boot (white logo). Tried clear cache - didn't work. Recovery showed that /system couldn't be mounted. Was able to root and flash CWM which then enabled me to pull off (via adb) data that wasn't backed up anywhere. Performed a backup from within CWM (although didn't check whether /efs was included or not) then tried restored factory. Still hanging on boot. Flashed I9300XXALE8_I9300H3GALE4_I9300NELE4 and the phone booted and appeared well although I didn't check IMEI number and didn't have the SIM at the time so don't know whether that worked at that point or not. Flashed I9300XXDLJ1_I9300H3GDLJ1_I9300NEDLI1 to update and all still appeared good but replacing the SIM showed no network and on checking IMEI found it to be 0049...

Not sure if CWM backed up the /efs or not? Would restoring the original CWM backup help or not? Current Baseband is I9300NEDLI1 and Build is JRO03C.I9300XXDLJ1.

Any options?

Thanks.
[Galaxy S III General] JJEgan:
Not sure if CWM backed up the /efs or not

NOT unless you used a recovery and choose to backup a EFS .

A custom rom flash may include the option to backup EFS .
[Galaxy S III General] danarama:
Read the ariza section in post 1 :/
[Galaxy S III General] danarama:
Yep, always worth checking your /sdcard partition for things that look liek an EFS .tar, .img or folder dump.
[Galaxy S III General] GreatVortex:
Hi. I have

AP: I9300XXEMH1

CP: I9300CEEMG2

CSC: I9300PHNEMG2

Can anyone tell me which version of EFS i have? V1 or V2? Thx
[Galaxy S III General] west421:
EFS V2 man.
[Galaxy S III General] upgrade:
So, with the new 4.3 rolling out now and for the people not patience enough to wait for OTA or KIES which they have 4.1.2 and a baseband EFS v1 before july 2013, what is the right procedure to flash 4.3 with ODIN and not breaking the network signal?
[Galaxy S III General] maxniper:
I have no luck, my SGS3 came from repair because of lost imei and sn and no EFS backup, now i have made a backup of EFS wen the phone returns from repair and i'm stuck with baseband EFS v1, i have everything tried to upgrade to baseband EFS v2 and i hallways lost IMEI on upgrade and i have to restore to a old modem and restore EFS.

Any advise on what can i do to have the new sam 4.3 rom?
[Galaxy S III General] Nickthegr8:
I guess it is clarified in first post of this thread:

How do I backup and restore /efs?

There are a few methods to backup /efs, but they all require customisation of your phone. Either root access, or a custom recovery. I appreciate that many of you do not wish to root your phones and just want to flash official ROMs via Odin... Well here are your choices:

Only use OTA or KIES to update (Official Method)

Root using CF auto root / Framaroot - backup efs and THEN flash via ODIN

Flash a custom recovery via Odin, backup efs and THEN flash a ROm via Odin

Risk it. Don't backup efs. Simply flash via Odin and hope for the best
[Galaxy S III General] danarama:
Is what is in post 1 not clear enough?
[Galaxy S III General] GreatVortex:
It means that this rom is M = 2013, H = AUGUST, 1 = revision 1 With EFS v2 THX
[Galaxy S III General] danarama:
Yep :)

Do you think I need more examples in post 1?
[Galaxy S III General] GreatVortex:
I think it would be great more examples to understand it better. Thank you
[Galaxy S III General] Hafiz.:
i have samsung galaxy s3 i9300 came from UK when i was trying to update it through mobile about then error pop up (your devise is modified)

then i was trying with kies and then kies update my mobile 4.1.1 to 4.1.2

but after that my mobile IMIE changed 35xxxxxxxx to 0049xxxxxxxx

and when i make a call then eroor (not registered on network)

now I'm in Pakistan

please help me

i am not a shopkeeper i am just a student

Actually i don't know how to post a new forum that's why i wrote here

Thanks
[Galaxy S III General] upgrade:
First choice does not apply to my question, I said for those who don't want to wait OTA or Kies.

Second and third: What is the point in backup an EFS v1 and write a rom with EFS v2 with ODIN? In that case, the backup doesn't become useless? It will be useful only restoring with a rom with a EFS v1 before july, right? Or am I wrong here?

And the fourth choice... that is why are so many threads regarding this issue, they didn't find this one in time.
[Galaxy S III General] JJEgan:
And the fourth choice... that is why are so many threads regarding this issue, they didn't find this one in time.

Why is far to lazy to read faqs and guides first . Far rather root flash in complete ignorance in most cases .

Of course the real answer to your statement above is that they refused to read the rules and SEARCH first .
[Galaxy S III General] Gorgtech:
Assuming that KIES did not upgrade your modem, just the Android version ( MG4 or newer ), you may have to flash a suitable modem by yourself.

I suppose you don´t have a EFS backup so you´ve got nothing more to lose. Flash this modem package I created through your custom recovery and tell me if everything is ok now ;)

http://d-h.st/RRR
[Galaxy S III General] maxniper:
As i read there is no solution for me right?
[Galaxy S III General] :
A question, my phone is at the Samsung service now because of the S/N & IMEI .. lucky I got everything back to stock and reset the counter etc etc.. Also the device status was at Normal when I sent it out.

If they had it repaired, should I be able to use it via KIES again?

Because, after it went wrong, KIES said that my device was not compatible with the KIES software.

I'm not sure about it, but after it went wrong by me , for the the first time (everything has to be a first time of course :P ) , I'm not really planned to flash/root it again.

So, you think I'll be able to update the phone via KIES when I've received it back from the Service Centre?

EDIT: I see maxniper is in the almost same position as me .
[Galaxy S III General] nvivas:
Hey guys.

Perhaps some of you can shed some light on the problem i am currently having.

Heres a long story.... short:

I've been using Omega's roms from quite some time now (since February i think) and had zero problems so far.

Last friday i noticed that my phone was not getting network signal. I had to take a long trip to visit the missus, so i ignored it, and slept the whole journey.

When i arrived, i noticed that the problem persisted. Called her to pick me up and went home.

When i arrived home, i flashed, with full wipe, a rom i had hanging around in my External SD card. Its was omega's 46.1 ROM.

When i finished flashing, i noticed that now, not even did i have no network, but i also couldn't make or receive calls, sms, etc.

Spent the whole saturday lurking these foruns and google and found out that my IMEI got somewhat corrupted (0045(. Obviously i had no EFS backup. Or couldn't find it.

Read some guides and decided to flash stock rom, downloaded from samsung site, via Odin.

Despite the flash, IMEI still was corrupted (0045). Tried to flash Omegas again, still failed. Went back to stock, failed.

This Monday i took my phone to repair with the stock rom on. Costed me 30€ to get the EMAI back and all was fine. I was sure that once i've got the IMEI back, all would be solved. The guy on the store gave me the phone with IMEI restored and already rooted. It was all good.

Did an EFS backup, both with the aroma installer and with an app called KTool.

Today i've tried to flash both versions (4.1.2 based on XXEMRG and 4.2.2) and has soon has i boot up, i get a network problem.

Now even flashing Stock gives me this problem.

I've used ARIZA patch and it solves my problem in any of the versions.

My question are: why do i even need it!? I didn't the last time i flashed a ROM. Is some part of my system still corrupt?

What can i do about it?!

Thanks all for your help in advance. Its truly appreciated!
[Galaxy S III General] diegonnc:
I there all, my imei changed for another one during the upgrade proccess from 4.1.2 to 4.3. Obviously i dont get network, and i cant send sms or anything network related, please help, i tried a lot of things including changing roms, and please do not point me to the QA thread as i checked every one of them without luck.My correct imei number is both on my s3 box and on the back of the phone, but i repeat is not the same as it is under system info or under the #*06*# . How can i restore my old imei? .I have a efs backup made with s3 efs backup/restore program, but its in raw format (efs_raw) what to do please?.
[Galaxy S III General] maxniper:
It was the same for me and after receive my device from repair I can connect on kies and do all the things over it but maybe they do a bad repair because I can't upgrade my efs to v2. I think I will put the phone like official and when the 4.3 arrives to my network I update on kies or OTA and then if I don't have network because of efsV2 I will for shore send it back for repair
[Galaxy S III General] :
and right you are :good::laugh:
[Galaxy S III General] ahmed.haggag:
thanx a lot

man thx a lot, great work...

u saved me

let see what we can do on my phone :)
[Galaxy S III General] costin85:
Quick question.

I have a Galaxy S3 using xxemf6 firmware.

I have a efs backup.

If I were to update to 4.3 official do I have to flash a efs v2 supporting firmware first or I can go straight to it?

Does xxemf6(norway-telenor version) have efs v2 or v1?
[Galaxy S III General] danarama:
"firmware" CHANGES EFS, Baseband / Modem supports it.

Read post 1. In particular, first 2 lines of section 2 and then "other section".

People, please read post 1 before asking questions. I will only repeat myself a limited amount of times.
[Galaxy S III General] danarama:
What custom recovery do you use? Just turn off signature validation
[Galaxy S III General] Gorgtech:
I hope you didn´t try to flash this package through a stock recovery ?

I´ve even linked the suitable recovery you need since this package is signed as well and works ;)

You need to flash a custom Recovery, try the one made by Phil: http://xdaforums.com/showthread.php?t=2002953
[Galaxy S III General] danarama:
And you know there is already an mg2, mg4 and mh1 package in post 1, right?

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[Galaxy S III General] ahmed.haggag:
r u using the stock recovery?

---------- Post added at 10:27 PM ---------- Previous post was at 10:24 PM ----------

sorry wrong reply :$
[Galaxy S III General] paumlhp:
Guys, I only have a zipped efs folder, is there a way to restore it?
[Galaxy S III General] danarama:
Read post 1 please

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[Galaxy S III General] paumlhp:
Sorry if it sounds silly, I read it and couldn't find if it's possible, my english is very bad. :/
[Galaxy S III General] danarama:
What is inside the zip?

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[Galaxy S III General] danarama:
Ok, it is "folder dump". See section in post 1 "step-by-step instructions to restore folder dump"

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[Galaxy S III General] Mord0rr:
Just trying help here.....

Lot of people read a lot about this EFS issue, "make a backup" of it....but the question is how?

How to backup EFS?

Reading this initial Post i did install HC-KCTool, and successful backup my EFS ( or i do presume i did).

Here it is:

Just press:

Backup EFS to

/sdcard/efs.img

Then you just say where you want the backup: Internal or External SD. You will see a .rar file. That`s the backup.:D

Of course at this point i haven`t install it again...so im not sure if it works, but maybe someone in extremis, can use this info...:highfive:

- My case:

2 days ago i install 4.3 Ireland released by recovery.

Didn`t like it.

Megafull wipe, reinstall previous rom, Omega 4.2.2.

No connection......

had to install the damn XXEMG4 and now i have everything ok......but i presume i lost EFS v1

:crying:

I still have old copy/backup, made by

simple copy past of EFS past

to on external sd, and my pc, just in case...but at this point i have afraid of installing 4.2.2 ROM`s or early.....:crying::crying:

Also, i have a backup made on TWR recovery of my first and original rom, but i presume it didn`t backup EFS....

Sorry the testament.... Master rooSU is already full of complaints of newbies like i...

Most of all, i hope sincerely that my backup mini DIY helps more people...:cool:

P.S. - S3 must be rooted...if im not wrong!:D
[Galaxy S III General] ahmed.haggag:
U should be able to install whatever ROM you want and if anything goes wrong just flash the xxemg4 again, I did that and everything is working fine :)
[Galaxy S III General] linx8:
Hey man, I've got the same problem. Any word of a fix? On reboot I can see a red ! in the top left corner. I thought I was in factorymode but I checked all the settings and that's not it.
[Galaxy S III General] danarama:
The exclamation ! Just means your phone is custom.

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[Galaxy S III General] Zack208:
I corrupted my EFS partition today. First I flashed the UBMH5 Omega rom used it for couple of days. Today, I flashed the xella firmware through odin and my IMEI changed to unknown and network was not working.

I have had the EFS.img backup on my computer, I restored it with the help of ktool once. For making sure I restored again the same efs.img and reboot the phone.

After that, phone wasn't passing the boot logo (the one before the boot animation). I tried making a flashable zip of efs.img backup that I had to restoring the efs but it didn't work. formatting data and cache through cwm wasn't working either. Than I use the tutorial to push the rom through adb to my sd card (because I was using old cwm version 5.4...). and I flashed back the omega ubmh5 rom. it worked :D

For pushing ROM or any other file to sd card through adb commands please see this tutorial here

Maybe someone will find this helpful.

P.S: Sorry for my broken English
[Galaxy S III General] danarama:
Thanks, however my tutorial in post 1 will suffice