yashsingh1/xdaforums huggingface dataset:
[Galaxy Note II Android Development] swagatsourav:
Downgrading back to N7100XXDME1

Hi

Utkarsh Gupta, i am already on the DMG1, If i have to downgrade my rom back to N7100XXDME1. Is it straight forward, considering i have the EFS backup before even upgrading to DME1.

Just to let you know, while i was upgrading from DME6 TO DMG1, MY IMEI became null and i used the same EFS restore, to put back the IMEI.

I just want to go back to DME1 as i am having serious battery drain from DME6 onwards. For me DME1 was very very stable.
[Galaxy Note II Android Development] mssmison:
I'm in a bit of a pickle here,

I updated directly to MF2 including the stock kernel. derp.

After figuring out the issue I realized I don't think I have an EFS backup anywhere, so I flashed back to the previous MC3 based build with the modem from it (Rogers).

Now I've got:

Baseband: I317MVLBMA3

My IMEI reads ok, but the system keeps crashing/rebooting, data comes up and connects but it all seems to crash after that.

Where can I go from here?
[Galaxy Note II Android Development] fidocampeao:
I mean, maybe this new modem can fix the EFS problem for those who cannot change modem...
[Galaxy Note II Android Development] mssmison:
Just to keep updated, I've tried numerous mentioned things to no avail. I tried a data recovery on my sdcard hoping to find an old backup there but no luck, I also tried a data recovery on /efs but no luck there either.

At this point am I SOL?
[Galaxy Note II Android Development] mssmison:
Wow.

I fixed it.

I ran a data recovery on the efs partition and found there was one file that had been deleted during the update. I restored that to /efs, rebooted and reflashed back to the old build based on MC3 with the old modem again rebooted and everything works.

Phew. Not the best way to start a monday, but glad I got it working again.
[Galaxy Note II Android Development] Techno848:
i have my imei no. and s/n with me, but the maine problem is i am not getting any signal n its saying that "the sim is not allowing a connection to the network' n service state - out of service

this happened after i flashed omega rom

i hav my efs backup what to do now ??
[Galaxy Note II Android Development] UtkarshGupta:
restore it
[Galaxy Note II Android Development] Techno848:
i hav my imei on my phone its just that i am not getting signal n i try to select network it says sim does not allow connection to this network..

its the problem with the modem or kernel i think
[Galaxy Note II Android Development] pankaj_GB:
In the screenshot there is no imei no displayed..its only baseband no..
[Galaxy Note II Android Development] UtkarshGupta:
Did you unlock your phone at any point of time ?

If yes, it might have been locked again.

Make sure the imei is correct by dialing *#06#
[Galaxy Note II Android Development] jaxadv:
Returning to stock rom - Wrong IMEI - No SIGNAL

Hi guys,

I've tried all sort of combinations and I can't seem to figure it out so please HELP!

I had PAC 4.2.2 on my N2 and now I have flashed latest stock by sammobile. No signal, IMEI starting with 0049.

I need a solution please as I want to send the phone to the repair centre and need to have stock rom/recovery, clean counters.

Thank you!
[Galaxy Note II Android Development] Techno848:
just install kies n choose firmware upgrade in tools give yur model no. n all tht stuff it asks like s/n n it will provied u with the steps now u most probably be on stock after the downloading...

then root using cf auto root by chain fire and install triangle away from play store n reset flash counter to 0 then send yur phone for servicing :D

$mart work done :D
[Galaxy Note II Android Development] Chileno4Live:
Hey guys! When I rooted my phone, I did an EFS backup because it was recommended. I have saved it in three different folders on my PC just to be secure.

Anyway, since I did a EFS backup on my stock 4.1.2 rooted rom, will it always restore my Imei on other custom roms or do I nees to revert back to the exact same stock rooted rom? I got a nandroid backup of the stock rooted rom on my pc as well.

Verstuurd vanaf mijn GT-N7100 met Tapatalk 4
[Galaxy Note II Android Development] UtkarshGupta:
Efs backup will work with each and every rom. Even ubuntu
[Galaxy Note II Android Development] Chileno4Live:
Thank you very much for answering my question.

Verstuurd vanaf mijn GT-N7100 met Tapatalk 4
[Galaxy Note II Android Development] thapostman432:
Please need some help with soft brick

Hey all,

dont know if im in the right topic but i desperately need some help with this.

i have an galaxy note 2 and it is rooted. I flash a rom trad 2 with the new modem xxdmg1

then i tried to flash a new rom with android 4.3 probam 4.4.0 it frooze after starting up.

its not fully bricked as i can enter recovery twrp. but when i reflash a new rom it gets stuck in a bootloop.

i can hit myself in the head forgetting to backup efs..

is there any way to undo this action?

Thank you very much in advance

cheers bob
[Galaxy Note II Android Development] UtkarshGupta:
You are in the absolutely wrong thread.

Anyways, just wipe data and reboot.
[Galaxy Note II Android Development] redlinux:
After 24 hours of non-stop action trying to save my phone's life (obviously I lost my EFS backup 6 months ago), this thread got me back my IMEI. For some reason, my IMEI changed into something that's different from what I originally had. I know my stuff very well so I didn't bother to check the modem part of it. I never had the instance to flash a different radio so who would have thought that a simple flashing of modem would resolve my issue?

Awesome!!
[Galaxy Note II Android Development] pankaj_GB:
Sir could you please link me to a good data recovery software..
[Galaxy Note II Android Development] pitflyer:
I tried to upgrade from Omega 16 to Omega 18 earlier today and after four hours I got a working phone again, back on Omega 16. My phone came back from SDS Repair and as such I've had to apply ARIZA Patch after a new ROM, but it looks like the ARIZA patch doesn't work on the newer modems? As such, after I applied the ARIZA Patch it would still not register on the network. I thought I'd blown away my EFS, but despite many restore attempts I could not get it to work (I had multiple backups of EFS and Omega backs up before install too).

In the end, at some point I actually DID corrupt my EFS (so my IMEI was incorrect, normally it was correct). At that point I restored my EFS again then ran Ariza Patch (on Omega v16) and everything is working. But since a bad EFS wasn't the problem, my phone just would not register on the network with the XXDMG1 or any modems I tried with v18, I had to go back to v16. Is there any way for me to fix this?
[Galaxy Note II Android Development] justkiddinghere:
I flashed miui yesterday not getting a signal

Any help?
[Galaxy Note II Android Development] aloush5592:
Flash a rom that has ddmg1 firmware + the same modem...you should get your signal back.

Sent from my beast:

Moon Rom v10

Adam kernel 2.7

.

.

.

.....plz hit the thx button if i helped you.....
[Galaxy Note II Android Development] MBariya:
Good and Helpfull guide. :thumbup:

sent from my GT-N7100. Press thanks if I helped..
[Galaxy Note II Android Development] edsoedso:
At this page http://xdaforums.com/show...php?p=32753333 I found this that works for MTK processors:

1- go to em with this code "* # * # 3646633 # * # *" (just type it on call pad)

2- then follow that path --> CDS info --> Radio info --> Phone1 (for the first imei)

3- at the top there is a command line which begins "AT+" just type there "AT +EGMR=1,7,"IMEI_1" (instead of IMEI_1 put your first imei number)

4- hit send command

5-if you done just reboot the phone, if you change the second imei go to step 2 and select "Phone2"

6-and enter the code "AT +EGMR=1,10,"IMEI_2" (instead of IMEI_2 put your second imei number) hit send command

7-reboot

Maybe it can work for other marks in case em code is available.
[Galaxy Note II Android Development] mavrik84:
Hallo

I got N7100 with 0049... IMEI, ofcourse no beckup of EFS. i repaird imei, now its ok on N7100XXDME6. But there is still no signal. I traid to del efs and than recover (as in 1st post), everything was ok, imei is stil correct, but no signal all the time. tried diffrents roms and modems, even customs. i unlocked it (just to be sure its ok) any ideas?
[Galaxy Note II Android Development] jhonyp:
You need Ariza patch. But not working on 4.3 tw roms. Only 4.1.2

Enviado desde mi GT-N7100 mediante Tapatalk
[Galaxy Note II Android Development] mavrik84:
this patch doesnt work for me, after that imei is 0049..... i downgraded N2 to 4.1.1, repairt IMEI by z3x box. and update to latest 4.1.2 by OTA. Imei and SN is correct but no signal :( i tried to dwongrade it again and imei is 0049... again. no more ideas
[Galaxy Note II Android Development] ibraahim:
I faced same problem. I installed.4.1.2 XXDMC3 (pre rooted )rom, rooted it again, flashed DLK7 modem and ran ariza patch... don't forget to put your Wi-Fi on when you run ariza... good luck.
[Galaxy Note II Android Development] luca1-86:
Hello, Now I have a problem but from the beginning. I bought Note 2 with 4.1.1 rom then upgrade to 4.1.2 and it was not enough for me. I've root, install TWRP and install a 4.3 rom but don't remember which one (probably DN3 or Tigra rom), then back to 4.1.2 and again flash to some of 4.3 roms. IMEI changed to 0049.. no efs backup. I was trying everything changing roms from 4.1.1 to 4.3, almost all modems. I left my phone in my local GSM Service. They repair note, everything was warking but the rom was 4.1.1. I've made EFS backup, flash 4.1.2 and IMEI ok but "only emergency calls", restore efs, success. And now, when I want to flash 4.3 there is always "only emergency calls". With all 4.3 roms and modems still the same, "only emergency calls". Rom which I am using now and is working fine is stock 4.1.2 and is working only with N7100DXALIA modem, detales:

AP:N7100XXDMC3

CP:N7100DXALIA

CSC:N7100OXXDMC2

What can I do, is there any solution

Regards
[Galaxy Note II Android Development] pankaj_GB:
1st make a efs backup every time you flash a new rom...and keep it in safe place...

2nd download mg1 from sammobile of from Dr.ketan thread...and flash from ODIN as PDA...

3rd again make efs backup

4th go for any 4.3 rom, but remember it's sage to flash MI6 rom only because MJ5 rom has something to do with bootloader to work wifi, however Dr.ketan had rectified it but first go for 4.3 MI6 such as hurricane, dn3..etc
[Galaxy Note II Android Development] luca1-86:
Thank you for your answer and sory for long reply. I was trying what you said but wihout success. Any from 4.3 roms are not working (only emergency calls). I was trying to flash in Odin, Twrp and Cwm. I dont know why its not working. Any suggestions?
[Galaxy Note II Android Development] pankaj_GB:
Please elaborate what steps you followed and what are your bugs...

Which 4.3 rom you used???
[Galaxy Note II Android Development] chitzin12345:
Please help N7100 imei null/null and baseband unknow

I have N7100 4.3 MI6 install .but my device is lost imei and baseband .Please give ideas .:confused::confused::confused:
[Galaxy Note II Android Development] pankaj_GB:
Have you efs backup???

Restore it...
[Galaxy Note II Android Development] drgkt:
Hi guys

I just landed on this thread by chance and reminded me of my case:

I bought a N7100 but had wrong ROM and CSC

This is the one it had:

ROM1:

Model: GT-N7100

Country: Baltic

Version: Android 4.1.2

Changelist: N/A

Build date: Mon, 04 Feb 2013 09:47:52 KST

Product Code: SEB

PDA: N7100XXDMB2

CSC: N7100SEBDMA1

MODEM: N7100XXDLK7

CSC:SEB

--------------------------------------------

I wanted Greek Rom and EUR CSC, so:

This is the one I flashed via Odin. (the latest Obtained from sammobile):

ROM2:

Model: GT-N7100

Country: Greece

Version: Android 4.1.2

Changelist: 1071214

Build date: Fri, 31 May 2013 02:18:10 +0000

Product Code: EUR

PDA: N7100XXDME6

CSC: N7100OXXDMF1

MODEM: N7100XXDMF1

CSC changed to BTU

--------------------------------------------

I wanted to change CSC to EUR but could not change it in this ROM.

So, via Odin I downgraded to:

ROM3:

Model: GT-N7100

Country: Greece

Version: Android 4.1.1

Changelist: N/A

Build date: Thu, 01 Jan 1970 00:00:00 +0000

Product Code: EUR

PDA: N7100XXALJ3

CSC: N7100OXXALJ4

MODEM: N7100XXALJ2

and used an app from playstore to change CSC to EUR which

performed a WIPE

.

--------------------------------------------

Then via Odin I reflashed ROM2 above.

I checked to see if device turns on, (it does) and entered download mode to veerify csc (it is EUR) but I shut it off once I got the language choice menu, so that it is in an "out of the box" state.

SO, IS IT POSSIBLE THAT I COULD BE A VICTIM OF LOST IMEI/EFS STUFF?

Thanks
[Galaxy Note II Android Development] fidocampeao:
thanks a lot, i'll try when I get home, and reply here if it works.

When I change the modem, should I restore the efs backup? if yes, from what method?
[Galaxy Note II Android Development] UtkarshGupta:
Yeah if after boot your imei is incorrect.

How did you backup it? If you have the bat script one! Then just use the restore script.
[Galaxy Note II Android Development] fidocampeao:
it didn't work...

installed the arhd 17 and perseus 36, the modem ubdma1, performed two different restores for efs, but nothing. still the imei changed to 04...

---------- Post added 22nd June 2013 at 12:11 AM ---------- Previous post was 21st June 2013 at 11:26 PM ----------

I was wondering, have you consider what he said:
[Galaxy Note II Android Development] landeiro:
YES Fido Dont work this. I tried. I Can back to original rom but I dont have signal. I Changed Modem but dont work... This is ****.. If I have problem with mobile how I resolve to warranty? Custom rom? Wow... :crying: Brazilian rom dont have update yet.

My IMEI stay crazy with original rom 04..... backup EFS didnt work. I come back again to custom and work fine with modem MF1.

People how fix this?
[Galaxy Note II Android Development] fidocampeao:
maybe there's a solution, if you did backup before updating it should be able to restore the previous... but if you did like me, updated without backup, probably not...

i'm hoping that the next updates are compatible, but the previous i really doubt.
[Galaxy Note II Android Development] rtz619:
Hello, I've experienced this issue. I had flashed omega v17, then for some reason i wanted to roll back to stock rom so i flashed old stock with odin. Which resulted in loss of EFS. I had my old EFS backup which I restored and got signal back. Only problem i see now is the current firmware is not detected by Kies though it is stock one.
[Galaxy Note II Android Development] UtkarshGupta:
To both of you.

Goto efs/imei and open mps_data.Dat

Open it and change the csc to your countries csc.

ZTO for you fidocampeao.
[Galaxy Note II Android Development] rtz619:
Its correct for me 'INU'
[Galaxy Note II Android Development] UtkarshGupta:
Update. As I see it, If you didn't make a efs backup before flashing MF2 OR ME6, then you got to stick to them. Or any rom based on mf2 or me6.

If you are really desperate to go back to another rom, you could try this.

Flash WanamLite with adam kernel and latest kernel.

Flash any touchwiz rom and make sure you don't change modem or kernel. Maybe then it will work. This is because adam kernel is based on the kernel packed in mf2.

I just assume this should work.
[Galaxy Note II Android Development] Miaxus:
I have the same problem.

Yesterday I tried the paranoid android rom and then I flashed the stock one, downloading an updated 4.1.2 firmware and flashed it and a a pit after a full wipe.

After rebooting there was it in my screen

upload immagini gratis

Searching in some forums I read the problem should be the EFS folder, but I didn't have a backup.

What can I do?
[Galaxy Note II Android Development] UtkarshGupta:
I couldn't load the picture. But I guess you are talking about factory Mode. Unfortunately, I myself don't know the solution to this problem.
[Galaxy Note II Android Development] Miaxus:
If I know what you mean, for some second after the home appears, there is a popup with something like "factory mod has been reset" , but it disappear after some seconds..

edit:

upload immagini gratis
[Galaxy Note II Android Development] fidocampeao:
how sad, but do you think i'll be able to update to newer versions? i'm more worried about not getting the 4.2.2 update than to return to my previous...
[Galaxy Note II Android Development] landeiro:
Wanamlite or joel rom fix this problem with modem(baseband)?

Enviado de meu GT-N7100 usando o Tapatalk 2
[Galaxy Note II Android Development] wesamothman:
Thx OP for posting this.

Users who flashed swift rom reported changing modems successfully.

It seems my bro did something to work around this matter.

On swift, he packed the rom with latest me4 modem but with me1 kernel. Csc changes too.

So users may want to have a safe backup of efs. This is important. But you also guys may wanna try swift too.

I will try to come up with flashable fix as soon as I can, if i can too. :)

Good luck d Thx OP again for your post.

Apologies for my intrusion. ;):thumbup:
[Galaxy Note II Android Development] ursoouindio:
Hi wesamothman

So you mean Swift is the safest rom today?

This modem/baseband/customroms can be very confusing for people like me who doesn't know exactly what it is all about.

Im also from Brazil. I'm using X-Note 3.2, it says "ME6" on it but my baseband is "ME4". Please check the image below.

I haven't got any signal problem, but I would like very much to be safe on that.

Thanks!
[Galaxy Note II Android Development] grilleld:
I have face with this problem yesterday and i have fix that, the right thing you should do is use stock modem, any old modem can not read your imei so you cant get signal, your imei will be like this 0499....000

---------- Post added at 07:40 AM ---------- Previous post was at 07:25 AM ----------

here is the solution for u and for all

flash stock XXDMF2 version via odin

Then u will get that suck thing appear on your screen

Root your phone, install recovery

Download and install Root Explorer then use it

make an backup for efs folder (Copy efs folder to your sd card)

Delete original efs folder from root directory (it will show delete fail but all sub folder and file have been delete)

Reboot your phone, u will not have lockscreen now

then use root explorer copy your efs folder you have backup in sdcard to original efs folder in root directory( replace all)

Then reboot your phone and bumm,you got your imei and signal again, from dialer type *#06# to check

the problem is modem cant read your imei, and your imei is still there,still in efs folder ,if u have flash any old modem it still there

and when u flash stock modem again it just cant read at the moment, so you need to do my method :D

Hope this help

it work for me
[Galaxy Note II Android Development] UtkarshGupta:
forgive me :( not spam
[Galaxy Note II Android Development] UtkarshGupta:
If anyone could confirm this.
[Galaxy Note II Android Development] UtkarshGupta:
If you flashed, the adam kernel just after flashing the latest version, without rebooting, you can downgrade.

The kernel is the main source of the problems.
[Galaxy Note II Android Development] Miaxus:
So should it works for me? These are my first times I flash, the only rom I flashed is the paranoid the only the stock one for an hard reset.

Do I have just to flash the XXDMF2 update for the stock rom?
[Galaxy Note II Android Development] UtkarshGupta:
make a backup of your efs. and you will be safe.

since x-note zero edition doesn't have the latest me6 kernel, you are safe.

once you make a backup of your efs, you can flash any rom and kernel and modem without worrying. if you ever need help, this thread is always open.
[Galaxy Note II Android Development] Miaxus:
Thank you, I'm just downloading the XXDMF2 and I'll try.
[Galaxy Note II Android Development] grilleld:
you can use my way for XXDME6 version

you are in stock modem of this version so just do all that step without change modem or anything and you will got your imei again

remember root your stock rom and install root explorer, do all the step and done.
[Galaxy Note II Android Development] Miaxus:
Done, but the imei still is 004999010640000 :(
[Galaxy Note II Android Development] jackkeylow:
Hi.. anyone from indonesia or malaysia? How's the signal after upgrading to the latest modem? thanks..

So basically if i wanna restore my modem back to XXDLK7 i have to restore my efs too with a non-me6/mf2 kernel right? are there any advantages by upgrading to the latest modem?
[Galaxy Note II Android Development] grilleld:
hm..it cant be

try to download stock XXDMF2 version
[Galaxy Note II Android Development] Miaxus:
I did, I downloaded this http://www.ugrades.com/2013/06/n7100-xxdmf2-update-2.html.

Is this?
[Galaxy Note II Android Development] flatronics:
Not in my case, Im on X-NOTE rom also, I have a backup of the prev version of the rom, I tried to restore it got the modem restored but the IMEI became 0049xxxx.. tried to I stall DME4 modem and it got fixed.

I can chnage ROM and kernel but I think this means we are stuck with DME4 modem.
[Galaxy Note II Android Development] UtkarshGupta:
You need to stick to the latest modem. If you have a efs backup prior to flashing mf2, then restore it.
[Galaxy Note II Android Development] flatronics:
Wait... stupid me.. I was doing it the wrong way.

What im doing before was:

Restore my efs backup.

Flash the modem for my country, but resulted to invalid IMEI.

flash DME4 modem the n I got my network back.

So I thought Im stuck with DME4 modem.

Then I tried;

Flash modem for my country.

Restore my efs backup and it works. Was able to register to my network.

finally... ha ha.
[Galaxy Note II Android Development] soloilmeglio:
who have a earlier efs backup can flash all roms and restore efs in case of problems. anyway with next Samsung releases all rom will be updated and imei problems will be gone (I hope)

Inviato dal mio GT-N7100 con Tapatalk 2
[Galaxy Note II Android Development] ursoouindio:
Thanks for the reply.

Yep, Adam 2.5 was flashed together with the ROM. (X-Note Zero 3.2). On its thread it says it is based on Spain ME6 firmware, If you say it is not this problematic one I'll take that :)

Have done efs backup and have older ones (which are on my laptop that I've sent to repair :/)
[Galaxy Note II Android Development] soloilmeglio:
do now another efs partition backup with this method http://xdaforums.com/showthread.php?p=41172630

do two or three copy of the IMG file and leave one in your device (others in a safe place).

and you can flash everything. in case of problems just restore your efs backup

Inviato dal mio GT-N7100 con Tapatalk 2
[Galaxy Note II Android Development] ursoouindio:
Thanks, solo! Will do it.
[Galaxy Note II Android Development] UtkarshGupta:
Did you rom provide an option to choose the kernel to be installed? If yes, please tell me a list of all the kernels that you gave the choice to install.

If not, which was the default kernel?
[Galaxy Note II Android Development] UtkarshGupta:
I guess you are safe. Try changing modem. If it changes properly, and you get signals or reboot, then there is no reason for you to worry unless you are changing rom to a rom based on me6 or mf2.
[Galaxy Note II Android Development] kasra001:
is there any chance to get signal without changing kernel?
[Galaxy Note II Android Development] Miaxus:
What didn't work for me? Was it the right firmware to flash? I Just followed your method but the IMEI is still the generic one :(
[Galaxy Note II Android Development] UtkarshGupta:
Just keep latest modem.
[Galaxy Note II Android Development] kasra001:
can I have new kernel and modem with previous bases?
[Galaxy Note II Android Development] UtkarshGupta:
Yes. You only need new modem btw.
[Galaxy Note II Android Development] kasra001:
Do you have the link of new modem and kernel?

---------- Post added at 09:07 PM ---------- Previous post was at 08:11 PM ----------

Is there any diferrence between previous kernels and new kernel in battery life?