yashsingh1/xdaforums huggingface dataset:
[Galaxy S III General] marracing:
I updated my S3 to I9300UBEMH2 which is the official rom for my country. I came from XXEMG4 (I didn't have signal with this firmware). I thought upgrading would fix the Cannot register to Network problem but it didn't. It's strange as this firmware is the stock for my country. My IMEI and SN are OK. Any help would be greatly appreciated. Thanks!
[Galaxy S III General] elhugo3:
Try with ariza patch.

Enviado desde mi GT-I9300 usando Tapatalk 4
[Galaxy S III General] danarama:
Errrrr NO!

It ONLY fixes serial number (which quoted member states is OK). Also ariza patch BREAKS MG* efs.

please try to understand problems before posting "solutions". Your solution here could have needed a service centre repair to resolve
[Galaxy S III General] elhugo3:
Ok, sorry for my mistake.

Enviado desde mi GT-I9300 usando Tapatalk 4
[Galaxy S III General] danarama:
no harm done...
[Galaxy S III General] manks:
OK, I'm really stuck and not really sure what to do now. I have a backup of my efs folder and have tried flashing various roms including the xxemg4 stock rom still can't get it to work. i have also tried zulaman patch and that just sets my imei back to null. some guidance here would be very much appreciated, my phone has been out of action for three days and I'm starting to get withdrawal symptoms!

thanks
[Galaxy S III General] danarama:
Send it in for repair. If you're an "ariza user" and have tried zuluman, all you can do is return to stock and get it repaired
[Galaxy S III General] boomboomer:
If you have the stock EMG4 rom installed then delete the contents of your efs folder and paste in the files from your backup, check the permissions are correct then reboot.

If the efs partition is corrupt then you may need a custom recovery like Philz to be able to reformat it first.

Read rootSU's thread on EFS

http://xdaforums.com/showthread.php?t=2393289
[Galaxy S III General] mildavidec:
I did it 2 days ago and works fine.

Before flash anything try this. You have just to edit 1 file.

Inviato dal mio GT-I9300 con Tapatalk 2
[Galaxy S III General] arabgenius:
Hello

I have Samsong S3 I9300 and by accedent when I was installing a rom it deleted my EFS and I did not have a backup

so I tried you emergency file but it still telling me

*#06#

Null / Null

what to do?

I need to register to the network,, please help
[Galaxy S III General] boomboomer:
Read the stickies on basics and efs, in particular rootSU's thread:

http://xdaforums.com/showthread.php?t=2393289
[Galaxy S III General] almousawi:
alright so now my efs has been changed to MG4 format if I flashed CM what should I do to make it work?

Edit: I already flashed the emergency zip but the problem was with CM nightly, it only worked with stock ROM for me
[Galaxy S III General] habylab:
Well I am on EMH1 and my calls cut short allllll the time. I have the same settings I have always had but just this major issue now all of a sudden. I've tried different kernels, so it must be this new format, right?
[Galaxy S III General] hannooi:
hello guys ....

i faced this problem and i stuck with XXEMG4 custom roms olny . after i read this thread i did the following :

- I downloaded XXEMG4 modem from omega app from google play

- I toke backup of the EFS by Ktool app (moved to External SD).

- I made super wipe

- I flashed custom rom with XXEMG5

- I flashed XXEMG4 modem .

- Then startup

- Works perfect .

so i think after this i can flash any custom rom then using XXEMG4 modem...

i know the problem still but i can change at least the rom ..
[Galaxy S III General] HC4Life:
Here's my experience:

I wanted to go back to stock cause i wanted to sell my Samsung Galaxy S3. Before that i had the Nightmare Rom based on leaked stock 4.2.2 firmware. This rom allow you during the aroma installation to backup your efs folder. So i keep it safe in my sd card. I backed to stock unrooting and flashing stock I9300XXEMG4 (4.1.2) - United Kingdom (BTU), all went well. Then i thought better and i gave up to sell my phone and back to root. So i rooted again and restore my nandroid backup of the Nightmare rom. I realized that i had the modem XXEMG4 and i wanted to go back to stock XXUFME7 modem that i had it before, so i use root explorer and extract the .tar file of my efs backup and copy/paste to efs folder in system, overwriting the old one.

This was the way i got my modem changed.

Thx. :)
[Galaxy S III General] lkoky:
Man, u just saved my butt!!!

But now, everytime I have OTA or update from KIES, I will need to re-flash MG4 baseband....
[Galaxy S III General] danarama:
Not if the updates are newer than mg4
[Galaxy S III General] TorSil:
Hello
[Galaxy S III General] TorSil:
Hello...

Sorry for my noob question, but does the ROM, Cyanogenmod 10.1.3-RC1-i9300 changes the EFS Folder ?

Thank You!
[Galaxy S III General] KfirLankry:
how should i install the file !?
[Galaxy S III General] boomboomer:
If you need to ask that question then you haven't read the basics, it's flashed with either mobile Odin or custom recovery.

I'd suggest you read the sticky guides first, before you brick your phone.
[Galaxy S III General] KfirLankry:
i fixed it !!! thanks guys!
[Galaxy S III General] Oomahey:
No CM ROMs change the EFS folder. Samsung ROMs newer than MG4 do.
[Galaxy S III General] TorSil:
So I can flash any cyanogenmod rom and return later to my stock ROM like I9300XXEMC2 without any problem, right?

Thank you very much!

I will try right now the new "CM-10.1.3-RC2-i9300" ROM.

Thank you
[Galaxy S III General] Oomahey:
Yes, you can. Of course, you'll need a full wipe when flashing between CM and Samsung based ROMs and vice versa.

Ensure you take a backup of the ROM and the EFS folder first, just in case, and you're set. :thumbup:
[Galaxy S III General] Tjoohej:
Rc2 build doesn't seem to work at all for me, even with full wipe and 2 times re-download. Android keyboard crashes and home button does nothing.

Can anyone else confirm this or do I have some invisible error in my phone?

Regards: tjoohej
[Galaxy S III General] zachs_xda:
I've flashed MG4 and it has upgraded my efs partition to the latest format.

However, the modem is performing badly on the 850Mhz band. I tried to restore my old efs backup but have no success thus far.

I suspect something is missing from my efs backup.

It was backed up by a ROM automatically -- it basically tarred up the efs folder but does not have the entire efs partition as an img. However, someone mentioned that they managed to unzip their old backup using root explorer and copy/paste into their current efs folder. So does the new MG4 modem change the partition or just files within that partition?

EDIT: Nevermind. Just found out it was the base modifying EFS. Not the modem. As I was still running the new base, the whole exercise was doomed from the get go.
[Galaxy S III General] G1032:
Have you gone back to an old base ROM now with old modem?

I have kTool efs backups. However restoring that backup to either pre or post XXEMG4 ROMs still doesn't let me use an older modem?

---------- Post added at 09:59 AM ---------- Previous post was at 09:54 AM ----------

What should the permissions be? Do they need to be set for each individual file in the efs folder?
[Galaxy S III General] boomboomer:
Best have a search for others that have successfully done this, I've read of a few. I think the permission is set for the whole folder, but can't say for certain, or what the permission should be.
[Galaxy S III General] grules:
THANK YOU !!!!!! Iam trying to get for about a week what was a problem about IMEI number problem
[Galaxy S III General] marduj5:
I had xxemg4 already didn't know for this.I rooted it and later flash back to xxemc3 and didn't loose Imei.Now I am back on xxemg4.How is this possible?
[Galaxy S III General] danieldp1990:
why you root your phone to flash a diff firmware?
[Galaxy S III General] marduj5:
I flashed custom rom .
[Galaxy S III General] danieldp1990:
there is your answere, maybe the custom rom came with MG4 modem. but ths is not for custom roms, we are talking about stock to stock fiirmwares.
[Galaxy S III General] marduj5:
Sorry yes custom rom had xxemg4 modem.I also have efs backup for older modems in tar.gz form but I dont want to go back for me it is god to be on xxemg4.
[Galaxy S III General] zachs_xda:
It's the ROM that changes the EFS partition, not the modem. So it's impossible to run a new ROM with old baseband.

I'm too lazy to try out an older ROM.
[Galaxy S III General] marduj5:
Well I am no lazy so I tried and flash older xxemc3 firmware and loose my IMEI.Than I rooted it and with root explorer put my efs backup rebooted and now I have signal and Imei with older modem.Than I used triangle away to get rid of flash counter and and remove root by reflash firmware xxemc3 and now I have stock rom with older modem and I can flash whatever I want.
[Galaxy S III General] marduj5:
I put whole efs folder from my backup and set permissions like old one instead rwxrwxr-x put rwxrwx--x rebooted and it worked
[Galaxy S III General] _Negan_:
Hello everybody I've installed a XXEMG4 rom, now I would like to install slim rom 4.2.2 but if I install it I've no network signal and no imei. I've no backup of efs before xxemg4 update...There is a way to make slim rom work after flashed XXXEMG4 based rom?
[Galaxy S III General] angelshie:
..just flash MG2 or MG4 modem then you will have network again.
[Galaxy S III General] _Negan_:
So you say...do all necessary wipe, install slim rom, then flash again xxemg4 baseband? Thanks m8
[Galaxy S III General] driven.arun:
I tried the emergenzy zip thru odin, but it doesnt help in my case.

my baseband is I9300XXEMG4. Build is JZO54K.I9300XXEMG5. (This is from Sammobile. I9300XXEMG5_I9300ODDEMG1_INU). my IMEI ends with 3573....xxxxxxx /01. could this be a part of the issue? did *#0011# and it says IMEI certi : FAIL. it think the network doesnt support the device anymore.

is there a way to fix this. Somebody please help me.
[Galaxy S III General] andrewwright:
Zip through Cwm recovery not odin.

Sent using xda premium
[Galaxy S III General] driven.arun:
did everything. the bloody network is not coming back. *#0011# say IMEI fail. flashed all modems, no avail. has anyone else found anything else on this?
[Galaxy S III General] JJEgan:
Paid for service repair is your next step .
[Galaxy S III General] HC4Life:
Do u have an efs folder backup?
[Galaxy S III General] driven.arun:
NO.

only have a nandroid back up.
[Galaxy S III General] popcorn1122:
Arun, I got ur pms... but if you have changed anything in efs folder, then only the service centers can help you.

Best option is if you have warranty, make use of triangle away and reset the counter to official and flash the MG5 Indian firmware, wipe all do factory reset and visit the service center and act as if you have no clue what happned and tell them when u updated it to some Update this is what happned...
[Galaxy S III General] HC4Life:
Sorry to tell u this but u are f**ked up.
[Galaxy S III General] garrickhayes:
i still have an IMEI and mobile data is working fine but no calls or sms...

tried emergency modem but it didn't work...

ended up trying 3 different stock roms including MG 7

this issue has happened to me twice already after the i9300 has updated itself of it's own accord.After sending the phone to samsung I got it back with a downgraded rom (from 4.1.1 to 4.0) and they told me they'd only fix it once as I must have tampered with the software and had now voided my warranty, which I hadnt..then the cursed thing updated itself in the middle of the night and did it again!

help! i've done a bit of checking on the threads and no one else seems to be having this specific problem 8::(
[Galaxy S III General] driven.arun:
spoke to samsung customer care , they told me to visit their smart cafe, from there they connected to a hub on a laptop with official roms for all models, which declined to support my device. i got sent to service centre which was not open today.

meanwhile on a different website, i saw this .

Starting....

Whitch tools are required for this method?

1.Any software tool (have to use .TAR file for flashing) E.x: Nspro box or odin.

2.Odin service software (for who doesnt have any tool box)

3.Alzip program for edit flash file.

4.Lastest version stock rom for I9300 (Lastest relase is 4.1.2)

Guide...

1.Open flash file with alzip u will see some files named modem, hidden, etc. delete only modem part and save it alzip will automaticlly compress the file again.

2.open ns pro or other tool ,select flash file and start flashing.

3.After flash done just control phone version and enjoy it.

this method tested by me many times, so feel free to ask any question about any problems.

he is very confident and may guys on the thread said it worked. basically u remove the modem from the Flash MD5 and flash it. i got error on odin and immediately i flashed the official firmware.

does anyone think, something like this should work??
[Galaxy S III General] popcorn1122:
There are ways to solve it but no one will answer you from this forum as forum is against tampering of IMEI.

Hence Google it and I am sure you will get an solution.
[Galaxy S III General] perbet:
Thanks for the info, now I make a copy of my efs
[Galaxy S III General] driven.arun:
Dear Popcorn

Im not in the business of tampering mobile phones. I got into this ****ty position because communities/concepts like xda, cyanogenmod encourages us to push the limits and personally i dont think its is a bad thing to do. Obviously risk is involved, but people like me take those risks because we felt that if we screw up there would be people or community who would see us through that. All i did was to upgrade the firmware and like the other hundreds of people who are seeking help, mine too got screwed up. i could afford to buy a new phone but thats not the point. nobody is obliged to help anyone but a little considerate effort would have been really nice. I had asked you thru forum and and thru PMS if you could advice me ONLY because you were in my position earlier. anyway thanks so much.
[Galaxy S III General] JJEgan:
Rules of the forum prevent discussion of certain subjects that may be illegal .

That is why you got refused an answer .

jje
[Galaxy S III General] salilkansal:
I'm currently on arhd 29 with mg4 modem. And mg4 base. I wish to install another custom rom based on 4.2.2. Can i do this or will i have no signal issue?
[Galaxy S III General] Oomahey:
You can. But ensure that you have MG4 modem and later. :thumbup:

Backup your EFS anyway.
[Galaxy S III General] BUFUMAN:
Hi, i did the same ****!

I used that zip file to repair my modem. I have now connection to network but my IMEI changed.

I did a efs backup before that hole mess, but i couldn't restore it!!! md5checksummmmmmmmm

Is it possible to change the IMEI file to get my old IMEI back.

THANK YOU!
[Galaxy S III General] xerol:
Guys i have flashed a Rom based on MG4 and i dont have any older efs backup. and when i flashed any rom based on 4.2.2 leak then i did not get any network and got corrupt IMEI number. so wat can i do to flash 4.2.2 based rom with working network?
[Galaxy S III General] danarama:
Flash a new modem.

Read general > sticky roll-up thread > imei /efs - know this stuff

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[Galaxy S III General] boomboomer:
Makes no sense, you can't get a connection without a valid IMEI .

It's possible to restore a backup even without MD5 match, but if you have connection then it sounds like efs is okay.

There is nothing you can do to repair the efs without a backup, paid repair needed.
[Galaxy S III General] xerol:
Guys i have one efs backup but i dont know its efs1 or efs2, how can i verify that?
[Galaxy S III General] Oomahey:
At present there is no way to determine if the backup is older or newer. But one thing is for sure, if the created/modified date of the backup is before mid-July, you can be sure it is an older version, because that is when MG4 first came out. :thumbup:
[Galaxy S III General] zazoo24:
Thank you for your help, this help me to fix my problem, ( not registered to network). :laugh:
[Galaxy S III General] misiekthcteam:
Hello, I have big problem. I flash xxemg4 and unlock with microbox, after unlock phone have 004... imei. I back to LLA and restore efs backup. Phone have normal imei but in settings service>unknown and not registered on the network communicue. Is here someone who can help me?
[Galaxy S III General] spykedsystem:
EFS question

Hello guys! I just bought an S3 from orange under contract so it means it is sim locked to the network. Immediately after buying it I tried flashing the latest XXEMG4 firmware but I noticed it has emergency calls and invalid imei. My device works great with any firmware below MG ones but not with ones after July, basicaly I believe my EFS folder is not changing format on MG roms and therefore newer firmware with the new format will not work, so I keep returning to XXEMB5 BTU cause it is the latest working for me...that being said I made a backup of the efs folder since it is the old one. Could this be because the phone is locked?

NOTE: Flashing MG basebands on older 4.1.2 roms such as XXEMB5 BTU will give me emergency calls, same as if i flash newer roms from september, and flashing older basebands such as emb5 on newer roms will give me the same result...emergency calls.

Flashing CM10.2 will give me emergency calls with xxemg4 baseband but it works with emb5 baseband. Cannot figure out what is happening, i fear that i will not be able to experience 4.2.2 or 4.3.0 official releases because of this
[Galaxy S III General] danarama:
Warranty will cover that when the time comes

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[Galaxy S III General] boomboomer:
To my knowledge the new efs format is made by flashing the complete EMG stock rom and then on first boot, I'd suggest download it from sammobile, check the md5 and use odin on your pc. Do a factory reset first, maybe even remove the sd and sim cards.
[Galaxy S III General] spykedsystem:
I have flashed the full EMG rom a few times,with resets,wipe scripts etc. I just get emergency calls on it but I can return to older stock ones and get my network back. I have not tried removing sim card however. EFS format does not change and I cannot use newer basebands/roms so I am backwards to the people here who have problems returning to older roms with older basebands, I cannot go further on the upgrade list :))
[Galaxy S III General] boomboomer:
That sounds like the new format isn't being written to the efs folder, perhaps the partition is damaged?
[Galaxy S III General] spykedsystem:
I am wondering how could that be...the phone is a week old, the only modification i did to it was to flash the new firmware, even though it came with some old 4.1.2 carrier bloated firmware. It also has the new emmc firmware without the bricking bug. If my efs partition was damaged, what would be some obvious symptoms? besides the one I have cause I will try to rule that out. Also I read in here that EFSv2 modem can read both 1 and 2 versions, but flashing an efs V2 (EMG) modem on my current firmware gives me the same result as if I was flashing the entire EMG4 rom...emergency calls and 0004 imei.
[Galaxy S III General] boomboomer:
No, I'm stumped -no idea other than the efs is unwriteable somehow. Only suggestion is to return to your original carrier rom and try an official update (ota or kies) to see if it results in same scenario. If it did then return the phone to orange in that state and request a replacement.
[Galaxy S III General] spykedsystem:
My only assumption and question is : can it be because it is sim-locked? isn't that imei related? efs folder related? like efs folder being locked to writing because of the network lock?
[Galaxy S III General] danarama:
Nope. Its a fault. It will be repaired under warranty.

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[Galaxy S III General] spykedsystem:
Should I start backing up everything I have and prepare for a replace as in a new phone or will they just repair it and give it back?
[Galaxy S III General] danarama:
Even if they repair it, they'll reflash it and wipe it so definitely back it up.

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[Galaxy S III General] xSpeced:
It seems like you cannot backup EFS on the new format. Anyone else have this issue?
[Galaxy S III General] spykedsystem:
I can do changes in my EFS folder like: backup and restore on the old rom, I can even backup EFS on the old (before july) rom and restore it on XXEMG4 without errors or such but it will not change the state of emergency calls and fake imei. I will wait a little and try some more stuff before taking it to service cause they will probably hold my phone for a month trying to repair it. It's only one week old and the warranty is two years.

EDIT: I get great battery life and usage on XXEMB5 BTU, so it is not mandatory to go for EMG4 rom, but as I said my only concern is not being able to use the "future" release. What I have not tried is flashing the 4.2.2 leak and see if that changes anything. Everything below july up to ICS works as intended.
[Galaxy S III General] Foggie:
Hi

Would restoring a ROM backup made with Phillz restore my /EFS partiton data etc too?
[Galaxy S III General] JJEgan:
Only if you choose to backup EFS
[Galaxy S III General] _33:
Hey there,

I have got a question and I think this is the best place on the internet to place it ;)

So yesterday I bought an i9300 with I9300XXEMG4 baseband/modem flashed with CM10.2.

The problem is, that the network is working but I don't have any sounds during a phone call. So I can't hear anything and the other caller can't hear anything too.

Is there anything I can do?

Since there is the MG4 modem flashed with the new efs structure I think I cannot try an other modem because of the imei

problems.

edit:

I also noticed that a call is cancelled after 30s because of network loss on the i9300?

Thank you a lot and kind regards

Sven
[Galaxy S III General] boomboomer:
Factory reset and return the phone to the full stock 4.1.2 to test for hardware problems, you can use any firmware EMG4 or later. Make sure you read and follow the guides, backup the efs folder etc, otherwise you'll brick it.
[Galaxy S III General] _33:
Hi,

so I reflashed the latest branding-free stock firmware I9300XXEMG4 (3 parted via odin).

Then I tested the microphone by using a recording app and the earpiece with an bypass-to-earpeace app.

Both work without a problem but unfortunately there is still no sound during a call.

Do you have any further ideas?

Is there a way to generate an efs folder with the old structre by entering the imei and the bt/wifi mac

so you can reflash an older modem?

Or is there an alternative modem software which already works with the new structure?

Thank you a lot and kind regards

Sven
[Galaxy S III General] spykedsystem:
How should I go about this rootSU? just bring the phone it flashed with XXEMG4 or the original firmware I bought it with,which is the Orange bloated firmware? I am gonna reset the counter but should I tell them I tried flashing an official newer rom and it doesnt work with newer firmwares but only with older ones because the EFS might be damaged? I can't really tell them I tried updating through kies because there is no EMG4 for my country and carrier
[Galaxy S III General] smspop:
Please how do I flash emergency zip to s3

Thank you.