IMEI and EFS folder ?helpful? information - General Questions and Answers

Hi
The other day I messed up my Gtab P1000 by going from CM10.2 back to CM9.1, it deleted my IMEI etc. I ended up with null or fake IMEI numbers
I tried this method first
http://forum.xda-developers.com/showthread.php?t=1264021
but it did not work.
I put the nv.data.bak and md5.bak I made by doing those instructions in that guide away and forgot about them.
Then went on a tour of the net trying to get tools and info
I tried loads, efs pro....sdk tools...qpst...imei writers....plus others, but nothing alone would work.
What I had to do was:
Download a stock rom for my country (GB V5 would not work, had to be stock for me)
Start odin 1.85
Flash stock rom, mr.pit and modem from the GB V5 stock safe rom in download mode
Start up
Root it
Put the nv.data.bak and its md5 that you made earlier into SD card
Download root explorer and start it
Copy the files over to your phones efs folder
start up EFS pro
Click back up/restore
Restore from internal back up. reboot aaaaaaaaaaand finally, after days of trying, it was fixed
As I say EFS alone would not work, and the 9 easy steps guide alone would not work for me, The way I did it also would not work with the stock GB V5. I don't know why. All I know is I had to use Stock UK rom from samsung website with the back up made from the guide and EFS pro
Hope that helps some of you. Or someone can put it somewhere that it can be helpful. Use my instructions as you see fit.
Cheers

Dazz71 said:
Hi
The other day I messed up my Gtab P1000 by going from CM10.2 back to CM9.1, it deleted my IMEI etc. I ended up with null or fake IMEI numbers
I tried this method first
http://forum.xda-developers.com/showthread.php?t=1264021
but it did not work.
I put the nv.data.bak and md5.bak I made by doing those instructions in that guide away and forgot about them.
Then went on a tour of the net trying to get tools and info
I tried loads, efs pro....sdk tools...qpst...imei writers....plus others, but nothing alone would work.
What I had to do was:
Download a stock rom for my country (GB V5 would not work, had to be stock for me)
Start odin 1.85
Flash stock rom, mr.pit and modem from the GB V5 stock safe rom in download mode
Start up
Root it
Put the nv.data.bak and its md5 that you made earlier into SD card
Download root explorer and start it
Copy the files over to your phones efs folder
start up EFS pro
Click back up/restore
Restore from internal back up. reboot aaaaaaaaaaand finally, after days of trying, it was fixed
As I say EFS alone would not work, and the 9 easy steps guide alone would not work for me, The way I did it also would not work with the stock GB V5. I don't know why. All I know is I had to use Stock UK rom from samsung website with the back up made from the guide and EFS pro
Hope that helps some of you. Or someone can put it somewhere that it can be helpful. Use my instructions as you see fit.
Cheers
Click to expand...
Click to collapse
my friend: look on google store (google play) there is one AMAZING APP:
SGIIrepair
it will repair your EFS, then backup EFS
Good luck i hope this helps you as well!

SGIIrepair???
tigrisimo said:
my friend: look on google store (google play) there is one AMAZING APP:
SGIIrepair
it will repair your EFS, then backup EFS
Good luck i hope this helps you as well!
Click to expand...
Click to collapse
Sorry to come back but I found nothing like SGIIrepair in google shop

Bracher said:
Sorry to come back but I found nothing like SGIIrepair in google shop
Click to expand...
Click to collapse
Type in SiiRepair in google play should be top of the list by helioz
it worked for me when i had a blank imie...really easy.... then used his GalaxySUnlock and same it worked first time.
Only thing i did and would not reccomend is the kies or phone software update because this broke the imei again and now i cant get it back ?? the repair dont work anymore,
First thing is back up your EFS folder onto your ext sd card good luck

Related

[Q] samsung galaxy player 50

My sister have a Galaxy Player 50 with eclair...this PMP seems to be the same as the galaxy 3 (same resolution...and some other things) so can I flash lestatious or other rom on it ?
This hardware is not a phone...but maybe ?
Maybe I can try to flash...but if the pmp become soft bricked...it's over since i can't found an galaxy's 50 firmware...
Darius, I'm stuck with a brick galaxy player. I can try to flash with a galaxy 3 firmware if you want
Do you know how to make a dump of your device so you can share with me the original firmware?
http://forum.xda-developers.com/showthread.php?p=14493414
I don't know...but I'll try to find
Thanks!
I tried the firmware of galaxy 3, but didn't work
I dont think that its possible, first of all, despite being an android device, it doesnt have radio features, gsm 3g etc, only wifi, there are features that our phone does not support
Anyone found a solution for this yet? Not being able to test this device to it's full potential is really frustrating. Games are laggy and apps just do not run smooth on this one.
Has anyone tried z4root on this? I did and it freezes at "acquiring root shell".
@fedeff: how did you brick it?
Darius_AWS said:
My sister have a Galaxy Player 50 with eclair...this PMP seems to be the same as the galaxy 3 (same resolution...and some other things) so can I flash lestatious or other rom on it ?
This hardware is not a phone...but maybe ?
Maybe I can try to flash...but if the pmp become soft bricked...it's over since i can't found an galaxy's 50 firmware...
Click to expand...
Click to collapse
First root using One click root.
Give these commands in Terminal emulator
su
mount
Check for system partition.Suppose it is stlx (x=6,7,8 etc depending on system partition)
give this command to dump system...
dd if=/dev/block/stlx of=/sdcard/factoryfs.rfs
Copy it from sdcard and upload. I need to check it then i can help u out.
arunmcops said:
First root using One click root.
Give these commands in Terminal emulator
su
mount
Check for system partition.Suppose it is stlx (x=6,7,8 etc depending on system partition)
give this command to dump system...
dd if=/dev/block/stlx of=/sdcard/factoryfs.rfs
Copy it from sdcard and upload. I need to check it then i can help u out.
Click to expand...
Click to collapse
I'd gladly try it as long as Samsung gives me firmware, don't want to end up with a nice looking little brick here.
Is there any way that that an installer/firmware file could be saved in the device for backup purposes or something?
anon3524 said:
I'd gladly try it as long as Samsung gives me firmware, don't want to end up with a nice looking little brick here.
Is there any way that that an installer/firmware file could be saved in the device for backup purposes or something?
Click to expand...
Click to collapse
factoryfs.rfs is ur firmware backup....
@arunmcops: Thanks for the instructions. If someone try this and upload it'd be great for me.
@anon3524: I accidentally reseted the device to factory, trying to fix a problem with wifi (it suddenly stopped working one day).
arunmcops said:
factoryfs.rfs is ur firmware backup....
Click to expand...
Click to collapse
Ok, I am down to do this process you just explained as long as you or anyone explains to me how to recover the device with this "factoryfs.rfs" in case it gets bricked. You'd have to explain with detail how to grab this file and what to do with it etc. Also, if you could give further details on the initial process, that'd be great since a few things are unclear (to a brave noob like me).
Other than that, I am willing to try it to see the results.
BRING IT OON! *warface*
@arunmcops - I've got one of these, so have uploaded the file you wanted here - sorry, not allowed to post links yet:
dl.dropbox.com/u/6491656/Samsung/factoryfs.tar.gz (please don't flash this, its not a full rom)
I haven't made any changes to the base firmware other than renaming a couple of the phone.apk's to .old (cell standby was eating battery, and this device doesn't have a sim).
For fun, i've also uploaded a dmesg log
dl.dropbox.com/u/6491656/Samsung/dmesg.log
One other thing, i think the partition layout might be slightly different on this (might be wrong, don't have the phone) in that the internal sd card is mounted as /sdcard and the external one is /sdcard/sd.
Hope this helps!
Chris
@ctaylr Thanks for uploading the file.
I tried to load it using Odin, but it get stuck while uploading the file. The device is detected, but I think it's not transfering anything.
Is it possible to restore it form sd card?
fedeff said:
@ctaylr Thanks for uploading the file.
I tried to load it using Odin, but it get stuck while uploading the file. The device is detected, but I think it's not transfering anything.
Is it possible to restore it form sd card?
Click to expand...
Click to collapse
Hi...thats probably because it isn't intended as a flashable rom. Its just a dump of the stock firmware so that arunmcops asked to see to see if it had any resemblance of the galaxy 3 f/w, to see what we'd have to do to get a working custom ROM on this device..
Please don't attack it with any kind of Norse God ...especially until there is a confirmed route back to stock. All thats contained in the files is what you have on your device already - so there is also absolutely no point (for now).
If your having trouble with your device now, you could try doing a factory reset or playing about in Kies - i've fixed my device once after I got curious and flashed a custom ROM on here (which fyi completely messed it up - something like E:multi_csc: error: open /efs/imei/mps_code.dat because we dont have an IMEI code on this device) and then got it back working again - unfortunately i can't remember exactly what I did. Otherwise if this doesn't work I'll see if i can make a working stock package for Odin.
@ctaylr, yes I'm having problems with my device. It got soft bricked. I couldn't make it work using Kies. The only thing I can do is to start it in Download mode. If you can make a working package for oding that'd be great
This might help
http://forum.xda-developers.com/showpost.php?p=9515709&postcount=14
Thanks!
@fedeff Ok. i'll have a look over the weekend and see if i can make something that flashes.
Quick questions
1) do you have the 8gb or 16gb version?
2) have you tried going into recovery utils and doing a "wipe data/factory reset?" - you can do this by holding down home, volume down and volume up while turning the unit on - i seem to remember this fixed it for me, but it probably depends on how far Odin got while flashing. If your unit is already bricked, i can't see it doing much further harm
Thks
ctaylr said:
@fedeff Ok. i'll have a look over the weekend and see if i can make something that flashes.
Quick questions
1) do you have the 8gb or 16gb version?
2) have you tried going into recovery utils and doing a "wipe data/factory reset?" - you can do this by holding down home, volume down and volume up while turning the unit on - i seem to remember this fixed it for me, but it probably depends on how far Odin got while flashing. If your unit is already bricked, i can't see it doing much further harm
Thks
Click to expand...
Click to collapse
1) I have the 8gb version
2) By doing "wipe data/factory reset" is how I got it soft bricked. (the device wifi suddenly stopped working, and I thought that would help) After that it kept entering in the recovery mode. Then I tried to flash it with odin, now the only thing I can do is enter the download mode
Thanks again for helping me!
News?
Hi! I also like the others I am interested because my Galaxy player has 50 brick and I need someone to do dump the firmware so I can flash through odin! Please would you be my salvation and many other who have this player and would like to fix without waiting for the assistance of a month
Waiting for an answer I greet and thank all users who want to help me
sorry if English is not correct, but I'm using google translator (I'm Italian)
EDIT:
listen to me: http://forum.xda-developers.com/showthread.php?t=726673 This is the guide on how to get the dump of your fimrware if someone kindly did this process with its galaxy player 50 and then upload the file . tar obtained would help all
I don't think it is as simple as that.
If you fully read that topic above, it tells you. That will ONLY tarball the files in the /system folder. It doesn't dump the the bootloaders, efs or produce the initrd, which is also part of the firmware.
In fact that backup is exactly what i linked to earlier here, and doesn't flash properly through Odin. I don't know Odin very well (i use a ZTE Blade and clockworkmod normally ) but i'm going to take an educated guess it needs all of this information to successfully flash the player, and trying to flash without all of that probably won't work so well.
If i'm wrong, please let me know and i'll do what i can to help.
ctaylr said:
I don't think it is as simple as that.
If you fully read that topic above, it tells you. That will ONLY tarball the files in the /system folder. It doesn't dump the the bootloaders, efs or produce the initrd, which is also part of the firmware.
In fact that backup is exactly what i linked to earlier here, and doesn't flash properly through Odin. I don't know Odin very well (i use a ZTE Blade and clockworkmod normally ) but i'm going to take an educated guess it needs all of this information to successfully flash the player, and trying to flash without all of that probably won't work so well.
If i'm wrong, please let me know and i'll do what i can to help.
Click to expand...
Click to collapse
ok then I'm sorry I read the topic in a hurry and did not realize that you can not do what I say but re-reading now I understand!
ctaylr what do you advise me to do then? wanted to try an get into recovery and restore but I think the 3 keys are disabled enters only download ..
Google traductor sorry

[Q] ERI Restore?

A while back, I lost my IMEI flashing CM10. I restored that back, and got my phone working again, but every time I leave the local area code, my phone says that I am roaming. Being that I recently moved out of state, this means that my phone now says that I am roaming all the time. While this doesn't greatly affect anything, I would like to fix it. The problem seems to stem from my ERI (ERI version: none). Is there any way to repair this?
I too have this problem now. I recently flashed a few cm10 nightlys one after another using the built in updater and I lost my imei. After using the nv-item_reader_writer program and the nv generator I was able to restore my imei but am still without an erI
This is what I did to get my eri back after losing my imei and restoring it. There may be some steps you don't need to do but it worked for me.
1) I flashed a stock rooted TW rom.
2) Next I flashed the VRLF2 modem found here (Click spoiler to see them) : http://rootzwiki.com/topic/34053-firmware-vrbmf1-modemrpmtzsbl-verizon-sgs3-sch-i535/
3) Next, I got my eri back using the forbidden software in this thread(You're going to have to search the thread some but you're on the right page): http://rootzwiki.com/topic/32397-tu...ants/page__pid__1218913__st__220#entry1218913
4) Follow directions in OP of same thread.
5) Once you have you ERI back to 5 and your phone shows verizon network I highly recommend going to Synergy rom thread and looking for the HW keys back up zip. It can be found if you look through the attachments in that thread. Make a flashable copy of your keys with that zip and place on your sd card and in multiple other places for safe keeping.
:victory::victory::victory::victory:
djwalter said:
This is what I did to get my eri back after losing my imei and restoring it. There may be some steps you don't need to do but it worked for me.
1) I flashed a stock rooted TW rom.
2) Next I flashed the VRLF2 modem found here (Click spoiler to see them) : http://rootzwiki.com/topic/34053-firmware-vrbmf1-modemrpmtzsbl-verizon-sgs3-sch-i535/
3) Next, I got my eri back using the forbidden software in this thread(You're going to have to search the thread some but you're on the right page): http://rootzwiki.com/topic/32397-tu...ants/page__pid__1218913__st__220#entry1218913
4) Follow directions in OP of same thread.
5) Once you have you ERI back to 5 and your phone shows verizon network I highly recommend going to Synergy rom thread and looking for the HW keys back up zip. It can be found if you look through the attachments in that thread. Make a flashable copy of your keys with that zip and place on your sd card and in multiple other places for safe keeping.
:victory::victory::victory::victory:
Click to expand...
Click to collapse
Thank you for this. I do not need iut currently and I do have a proper NVBackup but you never know . I have it on my Box account just in case and besides I could always help someone that didnt do a proper NVbackup. Quick question. What happens if you flash a 16 GB PIT on a 32 GB Model? Would it brick you or just give you a 16 GB S3? I have a 16 GB model but just curious. I need to read up on this stuff.
Sandman-007 said:
Thank you for this. I do not need iut currently and I do have a proper NVBackup but you never know . I have it on my Box account just in case and besides I could always help someone that didnt do a proper NVbackup. Quick question. What happens if you flash a 16 GB PIT on a 32 GB Model? Would it brick you or just give you a 16 GB S3? I have a 16 GB model but just curious. I need to read up on this stuff.
Click to expand...
Click to collapse
Since I had restored my imei with qpst all I did was use the tool to restore my eri. From what I've read it won't work unless you downgrade your modem. I didn't have to mess with the PIT files listed. I don't think it would be good to mess with those without talking to someone who knows more than I do. JMO, I don't think it would end well mixing those up. I also forgot a step, once you're back up with your eri you can upgrade your modem back to whatever is best for you. A lessoned learned the hard way for me. I haven't had to worry about losing stuff like this since the original EVO 4G.

Bricked S6 please help

Hi guys
recently bought a s6 from ebay which was frozen on S6 logo. Basically managed to clear cache and factory reset from recovery but that didn't work, anyway I DL the O2 firmware and odin and put it into download mode I get a fail on odin when trying to install the rom
The phone has knox 1 and also has red writing SW Rev. Check Fail. Device: 3 Binary: 1.
I'm unsure what to do and if theres any chance for me to recover.
Many thanks
Mav
it failed because you flashed an incompatible Firmware.
where did it stopped flashing in odin? In sboot.bin?
If thats the case, you need to download proper firmware/country for your device.
Let me know what country is ur fone made of.
Hi thanks for your reply.
I managed to get it working by installing root and unikernel, it boots into O2 the firmwarw is 5.1.1
Only problem now is imei is 3500000000006
And it wont make calls dont know if imei is corrupt ir they sold me a stolen or lost phone?
I may install tw recovery and custom rom and see if that works.
Any suggestions?
Hi
Ive managed to sort out and get it to work infact typing on it now. Its currently rooted custom rom and twrp. I e managed also to restore original imei number so overall im quite pleased with myslef lol.
Anyway one last problem i have is ive tried all sims but none work i know ita picking up signal as the bar shows top right. Also chexk my settings.
Ive tried automatically and manually going to register networks but it says unable to connect try again later. I know uts not my area as my wifes s6 works perfectly. Sim also def works. The phone also picks up when a new sim has been inserted so i dont think its sim slot.
Any ideas guys
OK new update if anyone can help I'd really appreciate.
Installed new vador rom Imei reverted back and serial number is all zeros
Is this something to do with baseband if so how can I fix read somewhere about ariza patch but that was s3 4 etc.
Thanks
Mav
1. Your EFS is corrupted. The IMEI you see is a generic one, phone will be useless for network provider only wifi will work.
2. The one thing that caused this is by flashing an old bootloader to your phone. Thats why youve encountered Check Fail error on Download mode.
Happened to me also but got it fixed in the end.
OK thanks for the info how do I fix? I do have my wife's s6 but that's not rooted and don't want to root can I restore the efs
Many thanks
Mav
Been searching for ages can anyone please point me in the right direction for a fast download of stock o2 5.1 rom? I believe I may need this one G920F_O2U_G920FXXU2BOGC_G920FTEF2BOG1.zip at the moment rapid gator is going to take 10 hours lol.
Thanks
BTW is anyone out there on the s6 forums hardly getting any help really want to try and sort this thanks
maverick7777 said:
Been searching for ages can anyone please point me in the right direction for a fast download of stock o2 5.1 rom? I believe I may need this one G920F_O2U_G920FXXU2BOGC_G920FTEF2BOG1.zip at the moment rapid gator is going to take 10 hours lol.
Thanks
BTW is anyone out there on the s6 forums hardly getting any help really want to try and sort this thanks
Click to expand...
Click to collapse
I think I know one thread that has a firmware downloader with ultra fast download speed you may try searching it.
I dont know if it will help, but you may be able to successfully flash the firmware but many of those who have problems were unable to boot the phone due to corrupted efs data.
Here's my way of fixing it (if you still have intact efs). http://forum.xda-developers.com/showpost.php?p=63693480&postcount=28
But if its already wiped, there's no way you can retrieve it unless bringing it to samsung or any repair shop.
Anyways, mine was fixed (IMEI) using Octopus box repair tool. Since I cant do anything to recover my generic imei.
batuzai04123 said:
I think I know one thread that has a firmware downloader with ultra fast download speed you may try searching it.
I dont know if it will help, but you may be able to successfully flash the firmware but many of those who have problems were unable to boot the phone due to corrupted efs data.
Here's my way of fixing it (if you still have intact efs). http://forum.xda-developers.com/showpost.php?p=63693480&postcount=28
But if its already wiped, there's no way you can retrieve it unless bringing it to samsung or any repair shop.
Anyways, mine was fixed (IMEI) using Octopus box repair tool. Since I cant do anything to recover my generic imei.
Click to expand...
Click to collapse
Thanks silly question but how do I know if my efs is ok or corrupted?
at the moment the phone works perfect it is rooted, twrp recovery and vador rom but it just wont connect to networks. I know its not stolen or lost.
maverick7777 said:
Been searching for ages can anyone please point me in the right direction for a fast download of stock o2 5.1 rom? I believe I may need this one G920F_O2U_G920FXXU2BOGC_G920FTEF2BOG1.zip at the moment rapid gator is going to take 10 hours lol.
Thanks
BTW is anyone out there on the s6 forums hardly getting any help really want to try and sort this thanks
Click to expand...
Click to collapse
As far as i know if your EFS partition is corrupt and you do not have a back up of the EFS partition to restore which you probably dont as you bought this as broken then sim capability is dead, im not sure of any other way to fix this unless you have the intact efs partition
Hi
How can I tell if the efs is corrupt it shows a baseband it now shows the correct ime I
It just won't connect to network it says try again.
I can post a screen print of efs folder on es Explorer if anyone knows what it should look like
Here are screen prints but I think I'm speaking to myself lol
Hi there i spent months on fixing issues like this (i now have a tool that takes care of all this) , best thing you can do is flash to a rom where the original imei came back do a backup of the efs, flash to a orginal rom ( latest rom) make sure its the right one for your device, connect to kies, install the rom again root and restore the efs failing that the imei is blocked use checkmend.com the uk version if your from the uk, message me if you need help
maverick7777 said:
Thanks silly question but how do I know if my efs is ok or corrupted?
at the moment the phone works perfect it is rooted, twrp recovery and vador rom but it just wont connect to networks. I know its not stolen or lost.
Click to expand...
Click to collapse
Your rom, recovery and kernel doesnt have to do with corrupted efs.
Only way is to bring it to repair service using box tools to re enter/validate your imei so that you can connect to your network provider. There is no other way around other than retrieving your efs and installing it or thru repair service.
You may now relax yourself at finding ways to connect, I assure it wont help trying to flash and flash and flash stuff to your phone.
---------- Post added at 08:46 AM ---------- Previous post was at 08:37 AM ----------
Uhm can you send sms or make calls? It seems you have a valid Imei
Ok ive tried all stock roms including o2 and a uk btu one but no luck they all do the same thing get frozen on Samsung logo then I flash unikernel and it boots.
When checking my efs folder I can see no modem file I'm now wondering could that be the fault? so I downloaded modem and BL for 5.02 and 5.11 both will not flash via odin I get a fail message and on device check fail device: 3 binary: 1 messgage in red?????.
So I'm a little lost, I was wondering if I managed to root my wifes s6 which is virtually new could I back up her efs folder then copy it into mine and just amend the imei to my original would that work? also is there a way of rooting my wifes phone without triggering knox?
Any other suggestions guys I really don't know what bootloader was on it to start with or rom is there any way for me to find this out?, also another weird thing when the o2 uk roms install they install german apps?
Thanks guys
Ive repaired EFS Partitions with scripts downloaded from links at xda.
For example i trashed my EFS partition on my note 3 so it caused hard reboots after android booted up and it couldnt be fixed with anything else than the EFS partition repair scripts.
Edit: friend repaired his Note 4 also.
Thanks but where can I find these scripts as I've looked everywhere and if I did find how do I go about doing it. At the moment when I try to flash modem and bootloader it fails.
EFS brick
maverick7777 said:
Thanks but where can I find these scripts as I've looked everywhere and if I did find how do I go about doing it. At the moment when I try to flash modem and bootloader it fails.
Click to expand...
Click to collapse
hi my friend,
i have exactly the same issue as u, i'm really hopeless, did you get any solution so far??????????????????????????
i hate being using my s6 as an ipad mini, holding two phones in my pockets
ketman5001 said:
hi my friend,
i have exactly the same issue as u, i'm really hopeless, did you get any solution so far??????????????????????????
i hate being using my s6 as an ipad mini, holding two phones in my pockets
Click to expand...
Click to collapse
Same with me also need help

Note 5 from hell! Nothing brings back the signal / IMEI / Baseband

i tried to unlock the note 5 i have using nv_data.bin without making a backup of my efs. got all the way through installing twrp, custom darkstar rom, and more. When i went to finally put a working sim card in it.... NO SIGNAL/BASEBAND UNKNOWN/IMEI UNKNOWN! i tried everything, from using smart switch, to odin.... Whole firmware flashing, to just modem.bin & sboot.bin (and others individually) for a while seperately it wouldn't work with a full firmware restore (using odin or z3x it would stop at cm.bin) but eventually i got it flashed and back to stock with odin & z3x on N920TUVU4DPK6 latest firmware, even used smart switch to flash to stock, but NOTHING brings back the imei or baseband. even tried to use xposed to change imei with app when it was showing up missing. efs backup pro didnt work as it couldnt read pit for some reason but odin could read pit just fine. z3x wont reset efs, wont repair, wont repair certificate, wont unlock. even the efs backup pro apk wont fix the problem.
Im all out of options... i am very knowledgeable about technology in general, and i have been rooting/flashing/tinkering with android phones for 4-5 years now (working with computers and tech for 15 years). Im stumped on this one... anyone who has some extensive knowledge in this department willing to connect with a team viewer session and try to help me out or at least post somethings to try.
I really need help BAD and am lost without guidance... i also can't afford to buy a new phone so im hoping this can work again soon. before i did anything it was working fine, only locked to t-mobile so i dont think its a hardware issue.
anyone out there got a heart (and brain lol) to help! :crying:
tailsmedia said:
i tried to unlock the note 5 i have using nv_data.bin without making a backup of my efs. got all the way through installing twrp, custom darkstar rom, and more. When i went to finally put a working sim card in it.... NO SIGNAL/BASEBAND UNKNOWN/IMEI UNKNOWN! i tried everything, from using smart switch, to odin.... Whole firmware flashing, to just modem.bin & sboot.bin (and others individually) for a while seperately it wouldn't work with a full firmware restore (using odin or z3x it would stop at cm.bin) but eventually i got it flashed and back to stock with odin & z3x on N920TUVU4DPK6 latest firmware, even used smart switch to flash to stock, but NOTHING brings back the imei or baseband. even tried to use xposed to change imei with app when it was showing up missing. efs backup pro didnt work as it couldnt read pit for some reason but odin could read pit just fine. z3x wont reset efs, wont repair, wont repair certificate, wont unlock. even the efs backup pro apk wont fix the problem.
Im all out of options... i am very knowledgeable about technology in general, and i have been rooting/flashing/tinkering with android phones for 4-5 years now (working with computers and tech for 15 years). Im stumped on this one... anyone who has some extensive knowledge in this department willing to connect with a team viewer session and try to help me out or at least post somethings to try.
I really need help BAD and am lost without guidance... i also can't afford to buy a new phone so im hoping this can work again soon. before i did anything it was working fine, only locked to t-mobile so i dont think its a hardware issue.
anyone out there got a heart (and brain lol) to help! :crying:
Click to expand...
Click to collapse
Do you have efs backup ? If you have made efs backup i can help you. If you don't have efs backup then i suggest you go to any repair center cuz odin or custom recovery not gonna do the job.
To restore efs/imei you will require a dongle box to write new cert files in efs partition.
Trex888 said:
Do you have efs backup ? If you have made efs backup i can help you. If you don't have efs backup then i suggest you go to any repair center cuz odin or custom recovery not gonna do the job.
To restore efs/imei you will require a dongle box to write new cert files in efs partition.
Click to expand...
Click to collapse
i have z3x and have been trying to re-werite a cert i found online but it didnt seem to do the job, and i dont have a backup, the backup i do have was after it stopped working :/
Kies or Samsung switch
Have you tried using the restore on either Kies or Samsung
Hey happened to me with the note 4. There is a guy on ebay I used and he repaired/restored imei remotely. Cost was 60 or 70 bucks. Took all of 10 mins. And phone was even unlocked afterwards. Might be with a shot.
tailsmedia said:
i tried to unlock the note 5 i have using nv_data.bin without making a backup of my efs. got all the way through installing twrp, custom darkstar rom, and more. When i went to finally put a working sim card in it.... NO SIGNAL/BASEBAND UNKNOWN/IMEI UNKNOWN! i tried everything, from using smart switch, to odin.... Whole firmware flashing, to just modem.bin & sboot.bin (and others individually) for a while seperately it wouldn't work with a full firmware restore (using odin or z3x it would stop at cm.bin) but eventually i got it flashed and back to stock with odin & z3x on N920TUVU4DPK6 latest firmware, even used smart switch to flash to stock, but NOTHING brings back the imei or baseband. even tried to use xposed to change imei with app when it was showing up missing. efs backup pro didnt work as it couldnt read pit for some reason but odin could read pit just fine. z3x wont reset efs, wont repair, wont repair certificate, wont unlock. even the efs backup pro apk wont fix the problem.
Im all out of options... i am very knowledgeable about technology in general, and i have been rooting/flashing/tinkering with android phones for 4-5 years now (working with computers and tech for 15 years). Im stumped on this one... anyone who has some extensive knowledge in this department willing to connect with a team viewer session and try to help me out or at least post somethings to try.
I really need help BAD and am lost without guidance... i also can't afford to buy a new phone so im hoping this can work again soon. before i did anything it was working fine, only locked to t-mobile so i dont think its a hardware issue.
anyone out there got a heart (and brain lol) to help! :crying:
Click to expand...
Click to collapse
I have the EXACT SAME problem that you have. I'm on the latest firmware N920TTMB4DPH2, I can't rollback to prior firmware. z3x couldn't detect my phone's modem, I've been looking for a solution too. In my case, someone told me (even z3x log said the same thing) that I have to downgrade the phone's modem, but I still couldn't find a way to do this. I think in my case, I have to wait for Samsung tool Pro to finally support the modem or find a way to downgrade the modem. (Can't even find any modem out there). I just tried Samsung tool Pro 27.4 today, still doesn't work. I think you might have seen this post? This might help?
http://forum.gsmhosting.com/vbb/f922/n920t-ph2-imei-repair-success-2132347/
Rjizzle1 said:
Have you tried using the restore on either Kies or Samsung
Click to expand...
Click to collapse
restored with smart switch and although the phone was back at stock, still baseband and imei was null / no service...
tomcklam said:
I have the EXACT SAME problem that you have. I'm on the latest firmware N920TTMB4DPH2, I can't rollback to prior firmware. z3x couldn't detect my phone's modem, I've been looking for a solution too. In my case, someone told me (even z3x log said the same thing) that I have to downgrade the phone's modem, but I still couldn't find a way to do this. I think in my case, I have to wait for Samsung tool Pro to finally support the modem or find a way to downgrade the modem. (Can't even find any modem out there). I just tried Samsung tool Pro 27.4 today, still doesn't work. I think you might have seen this post? This might help?
http://forum.gsmhosting.com/vbb/f922/n920t-ph2-imei-repair-success-2132347/
Click to expand...
Click to collapse
ive been flashing different modem.tar files with odin all to no luck, they take, and it says flash success (ok) but still null baseband
diopskill said:
Hey happened to me with the note 4. There is a guy on ebay I used and he repaired/restored imei remotely. Cost was 60 or 70 bucks. Took all of 10 mins. And phone was even unlocked afterwards. Might be with a shot.
Click to expand...
Click to collapse
u remember what he did? cause i dont have 60-70 $$$$ that was the reason i reached out here, hopefully someone could help or link me a guide i could follow... money is scarce around here :/
Removed
:crying:
tailsmedia said:
i tried to unlock the note 5 i have using nv_data.bin without making a backup of my efs. got all the way through installing twrp, custom darkstar rom, and more. When i went to finally put a working sim card in it.... NO SIGNAL/BASEBAND UNKNOWN/IMEI UNKNOWN! i tried everything, from using smart switch, to odin.... Whole firmware flashing, to just modem.bin & sboot.bin (and others individually) for a while seperately it wouldn't work with a full firmware restore (using odin or z3x it would stop at cm.bin) but eventually i got it flashed and back to stock with odin & z3x on N920TUVU4DPK6 latest firmware, even used smart switch to flash to stock, but NOTHING brings back the imei or baseband. even tried to use xposed to change imei with app when it was showing up missing. efs backup pro didnt work as it couldnt read pit for some reason but odin could read pit just fine. z3x wont reset efs, wont repair, wont repair certificate, wont unlock. even the efs backup pro apk wont fix the problem.
Im all out of options... i am very knowledgeable about technology in general, and i have been rooting/flashing/tinkering with android phones for 4-5 years now (working with computers and tech for 15 years). Im stumped on this one... anyone who has some extensive knowledge in this department willing to connect with a team viewer session and try to help me out or at least post somethings to try.
I really need help BAD and am lost without guidance... i also can't afford to buy a new phone so im hoping this can work again soon. before i did anything it was working fine, only locked to t-mobile so i dont think its a hardware issue.
anyone out there got a heart (and brain lol) to help! :crying:
Click to expand...
Click to collapse
Do you still have the nv data bin file?
tailsmedia said:
i tried to unlock the note 5 i have using nv_data.bin without making a backup of my efs. got all the way through installing twrp, custom darkstar rom, and more. When i went to finally put a working sim card in it.... NO SIGNAL/BASEBAND UNKNOWN/IMEI UNKNOWN! i tried everything, from using smart switch, to odin.... Whole firmware flashing, to just modem.bin & sboot.bin (and others individually) for a while seperately it wouldn't work with a full firmware restore (using odin or z3x it would stop at cm.bin) but eventually i got it flashed and back to stock with odin & z3x on N920TUVU4DPK6 latest firmware, even used smart switch to flash to stock, but NOTHING brings back the imei or baseband. even tried to use xposed to change imei with app when it was showing up missing. efs backup pro didnt work as it couldnt read pit for some reason but odin could read pit just fine. z3x wont reset efs, wont repair, wont repair certificate, wont unlock. even the efs backup pro apk wont fix the problem.
Im all out of options... i am very knowledgeable about technology in general, and i have been rooting/flashing/tinkering with android phones for 4-5 years now (working with computers and tech for 15 years). Im stumped on this one... anyone who has some extensive knowledge in this department willing to connect with a team viewer session and try to help me out or at least post somethings to try.
I really need help BAD and am lost without guidance... i also can't afford to buy a new phone so im hoping this can work again soon. before i did anything it was working fine, only locked to t-mobile so i dont think its a hardware issue.
anyone out there got a heart (and brain lol) to help! :crying:
Click to expand...
Click to collapse
what! add me on the list, i was searching the same problem, and i found this thread. i guess no one can help in this community with no backup efs file. my device is sm-n920t note 5. i can downgrade to lollipop by, from stock nougat i will root and flash custom firmware, then on the custom firmware i flash it to any stock rom. this doesn't solve the problem.
Haha same issue here... A year later... And still no solutions... Mine is SM-N920P. I accidentally rebuilt the nv_data.bin file and my unlocked phone is showing me that my SIM card is invalid. I'm busting my nuts to find a solution.

[GUIDE] how to fix EFS Damaged on samsung devices [EASY!]

Edited in 2022 to make it look a bit better!
*WARNING* *TAKE A NANDROID BACKUP OF EFS AND BASEBAND BEFORE STARTING*
Hello people, first I want to say that this is my first guide so it doesn't really look professional but I am doing my best to be clear as possible.
In this guide I will be showing you how to repair your IMEI for free/without Z3X box
So lets get into it.
Its better to start fresh in stock rom
So flash the stock rom first
Now we are really starting,
Step 1) flash TWRP and flash Magisk (if you weren't rooted yet)
Step 2) now search for a custom rom for your phone download it before doing something or just download on pc and move it later
Step 3) now go to mount and select efs or else your efs will be empty at the next step
Step 4) now go to file manager and goto /EFS
Just delete everything in it OR YOU CAN LEAVE Privo data and factory app, you have a backup anyways. *WARNING: DO NOT DELETE THE EFS PARTITION IT SELF, IT WILL MAKE YOUR PHONE NOT BOOTING ANYMORE ONLY DELETE THE FILES INSIDE OF IT SO DELETE ALL FILES*
Step 5) now flash the custom rom for s7 edge i would recommend kingrom, do full wipe at the aroma. You may try to skip this step. There have been comments saying that this guide also works without this step.
Step 6) now reboot your phone, first reboot may take 5-10/15 minutes please be patient and make sure you put your phone in the charger if your battery is low now when your phone is in the welcome screen look or your signal is returned if not just setup your phone sometimes it may take a while for the signal to appear. If your signal is returned then go to phone app and dial *#06# and look or the IMEI matches the IMEI of the box of your phone (make sure you have the original box if you don't have this then open the back of your phone (if you can), there is a sticker label with your s/n and IMEI. If you cannot open the back of your phone, then you will have to trust that the IMEI is right. If everything is functional then you're done with this guide. The next steps are more ''checking'' if everything is alright.
Step 7) If your s/n is ok skip to step 8 if its not right then download a root explorer and go to /efs/factoryapp and edit the serial no file with a text editor and enter your s/n there now save it and IMEI and s/n should be alright
Step 8) Now, for IF the IMEI is correct and everything is fully functional, then delete the earlier made backup of EFS and baseband and make a new one with the working partition, then save it somewhere safe on an external drive, the cloud or on an USB, or just a pc that you will never reset or wipe its data.
Congratulations on getting past step 8. I hope this guide has helped you and that it worked for you. If not then I'm sorry for not being able to assist you. This guide is just me sharing what I did to solve this issue. Good luck on solving your problem if this guide did not work.
If the IMEI is not correct or this guide doesn't work then I can't help you any further except for if you have any questions, however I found a guide for the Samsung galaxy s7/Edge (if you have s8 then click same link because the thread has a link to s8) by Cubz (thanks to Cubz for his guide)
Link: https://www.google.com/amp/s/forum....ow-to-fix-check-drk-imei-issues-t3379516/amp/
S7/E/8 only and some other models as long its an s7 (edge) or s8/+
******* Some tips when you follow the guide*******
1) When you flash combination firmware and it gives you errors then dial *#1234# and look at the cp it should have UX in it (X could be 1,2 or 3 download the correct firmware with the correct bootloader version. You can upgrade from u1 to u2 and u2 to u3 but not downgrade from 3 to 2 or 2 to 1
2) If it didn't work then flash back to stock and fully delete everything in efs folder then retry (this is actually just guide B) its better to follow the guide above
3) If you got bootloader exception error then keep tapping the home button fast until it reboots then just manually reboot and enter download mode
The first method was tested and worked on SAMSUNG GALAXY S7 EDGE SM-935F it may work on other Samsung devices and maybe other android devices but I cannot guarantee that it works on your device
** I take no responsibility for any damaged device, make sure you take a back up so you can go back to the state before you started following this guide!**
If the device gets bricked then always flash back to stock, if you cant enter download mode then just wait until your battery drains and then when you put it in the charger it may start up automatically so enter download mode fast or if you got bootloader exception error then keep tapping the home button fast until it reboots then just manually reboot and enter download mode
----------------------------------------------------------------------------------------------------------------------------------------------------------------
Happy flashing and please confirm in the comments below if it worked for your device or not
Guys please comment or it works on your device or not!
It works for me. But I have to manually change CSC on my phone after original rom flash to fix Network. TGP rom have that option.
I followed your guide and my model name changed from G930F to G930FD and my IMEI is just bunch of zeroes wtv
SOLVED AT LAST - MISSING IMEI and EFS DAMAGED SOLUTION
Hi Guys,
First off, please take GOOD note - I am NOT a techy, just an old boring flashaholic who works in an office and likes pyjamas more than partying. This is my account of me fecking up my phone and finally reaching a solution after three days and most of two nights to a missing IMEI, messed up EFS and non-working phone - hoping that it might help anyone as desperate as I was. You do what you do with your phone and that's your business and I'm not responsible if you mess it up, but my hope is that you have have a brain (that's all I have) and you get some helpful piece of info here as I did from a whole ton of posts I read that finally led me to this.
Next - I am not sure what landed me in this mess. I've seen Superman Rom mentioned a couple of times..I didn't use that but I did use Batman Rom which is by the same Dev. It was great to use, too, so I'm not faulting the Dev by any means. What did happen, though, is that when I flashed other ROMS, maybe 3 or 4 of them following, the Batman splash screen was always there before the new ROM's boot sequence, so there were clearly some residual things of it in there ...so perhaps the same coding is in there and could have had something to do with it, I don't know. The breaking point came when I flashed Sac23 Rom hoping to get Pie on my phone. It was cool but I decided to revert to Resurrection Remix - always my favourite overall - and all of a sudden I get errors.
What should have been a routine "Restore" of my backed up RR ROM via TWRP gave "Error mounting EFS". Reboot, wipe, retry. No joy, same again. A couple of tries to restore the EFS from the backup in TWRP didn't work either.
Next go to is flash "original firmware" (more on this wording later). I had that on my PC (not a phone backup, just the firmware so it's clean copy with no data).
Get Odin out, download mode, correct files in correct boxes, all that standard stuff you can find guides on most places - no joy.
Error showing was "Fail at pm.bin" or something like that. Install aborted.
Try again. This time "Fail at cm.bin" Install aborted. Reboot from recovery also fails. Oh sh1t.
Several more attempts made. I have five different Odin vers. I have seven different firmware vers. I have two USB ports and about 8 Samsung cables. Not a single combination I tried worked.
The XDA heroes will know what to do, I thought. I read and read. And read. And CubZ (who is a hero even if he IS from Lancashire ), says MAKE SURE YOUR PHONE IS RUNNING ORIGINAL SOFTWARE. Well...I kinda did that mostly already...but maybe I need to go RIGHT back to the rubbishy 6.0.1 version that came actually ON my phone when I got it....almost 2 years ago? Who remembers that stuff?? I'm about 18 ROMS down the line now. I was desperate. I'm telling you...I even got out my bank statements to trace when my first payment to my current provider was...I read about firmware numbers and country codes, and I chose one from Sammobile with a build date, country code, unbranded code (which my phone always was) and correct phone model (of course!) as I needed. And it WAS .."the ORIGINAL" firmware.
This time I swear Odin failed me a second BEFORE I pressed the start button! No joy.
Have a flask of coffee and a few valium sandwiches and off I go back to XDA again. I read a loooong series of "Missing IMEI" stuff and there's CubZ again with an IMEI/EFS fix guide guide...brilliant! And it WAS brilliant, and clearly he helped tons of people (kudos, man). But I had messed up MY phone in the time-honoured "right royal" way - worse than his guide could help me. My IMEI was Unknown, my EFS was empty, My SIM wasn't being recognised, no network info or signal...nothing. But genius that he is, he CubZ DID post a Combination file that gave me a base to keep trying on when firmware after firmware had failed almost immediately with errors either of pm.bin/abort or cm.bin/abort.
I almost wore the print out on CubZ guide, I read it so much and tried so many times. Then...I see people saying things about U1, U2 and U3 firmwares. Turns out you shouldn't mix the two. I got that snippet from CubZ too. More research and the little coffee-fuelled connections in my brain are like.....ok....
My ORIGINAL firmware has in its name "U1" and there are similar ones with "U2". Might that be it? My phone has been screaming "DEVICE 2 FIRMWARE 1" (or something like that) at every aborted 'original firmware' installation via Odin and download mode that I've tried, including the EXACT firmware that was on my phone the day it was unwrapped and I danced happily round the room with it.
So if DEVICE 2....FIRMWARE should be 2 maybe? Back to Sammobile. There are firmwares with the same model number, country code, branding info as mine..but with a "U2" where mine said "U1". But...they were Oreo and Nougat where mine was "originally" Marshmallow.
It's now day three in the Big Mother House. My valium and coffee and running out and my communication with the outside world has ceased. I've had about five hours sleep, my food is running low and I cannot call for takeaway cos I ficked my phone up good and proper. I even....get this....start looking up PAID services to fix this. I KNOW, right!!??
I pick up a Nougat firmware from Sammobile...careful to match model, country, branding AND U2 - wondering if I can match it up with CubZ's Combi file as a base to appease Odin......and then maybe revert to my 'original' stock from that to start another attempt at the IMEI/EFS thing.
It loaded. Odin was pleased with my sacrifice. And lo and behold, it had restored the whole lot WITHOUT me having to go any further with stock ROM reversions. It frickin' worked. I got my signal back. My SIM card was detected. My phone number was showing. My IMEI was showing. My E-Frickin-S was mended. I feel like Judd Nelson at the end of Breakfast Club.
So here's the semantic bit that I hadn't known and that is unclear in many many posts. My phone is now working 100% on stock firmware....but is is NOT REALLY the ORIGINAL software - it's the MODEL......COUNTRY......BRANDING.....LANGUAGE - specific firmware but it is Nougat where my original was Marshmallow, and it is a U2 firmware where my original FW was U1. THAT was the killer difference, it seems. Thanks to all of you who posted anything - many many of you - who helped me get this. It's a compatibility issue detail I've never seen or had issues with before.
I now have G930FXXS2DRDI_G930FXEU2DRB5_XEU
Where G930F is the model number, XEU is the country code for UK and Ireland (even though UK is a nation and not a country - just sayin' ) and the U2 sits there hiding in the middle of the second section of the name.
Which gives unzipped files as follows: NOTE - THESE ARE NOT LINKS.
AP_G930FXXS2DRDI_CL12365438_QB17789072_REV00_user_low_ship_meta.tar.md5
BL_G930FXXS2DRDI_CL12365438_QB17789072_REV00_user_low_ship.tar.md5
CP_G930FXXU2DRB6_CL648265_QB8952207_SIGNED.tar.md5
CSC_XEU_G930FXEU2DRB5_CL13061583_QB16917099_REV00_user_low_ship.tar.md5
HOME_CSC_XEU_G930FXEU2DRB5_CL13061583_QB16917099_REV00_user_low_ship.tar.md5
It's Nougat, but that's okay for now; I got my IMEI, EFS, SIM, BIN, probably ENT, RAC, SUV and BMX too, everything
And now, with my working phone, I am gonna phone the local Chinese Takeaway for food, answer all my emails that popped and binged and tinkled at me when it became resurrected, and leave CubZ with huge thanks and all of you guys with the hope that this helps somebody out there.
And maybe look at backing this sucker up and reverting to my Oreo RR ROM I love so much..... I HATE Touchwiz!!!!
Good luck!
:good::good::good:
I was also on similar problem and i lost my efc
Baseband unkwn
Imel null
No signal
I was on s9 port rom by teamexykings and when i update i did dirty flash and my phobe stuck on samsung logo somehow it was boot but it was keeps rebooting than i boot my phone in twrp
When i was trying to wipe system data and dalvic cache
In wipe menu i was shocked to see that it showed internal storage 0mb
I had this problem 1st time
And i have to format my phone to boot properly
U know my big mistake is that i haven't taken a back up of my all apps and my data
After 10-15 min latter it boots
But 2nd shocked was that
I lost my signal my imei my baseband vesrsion unknown
I was so scared to lost my imei
Than i searchon google and i have read lot of articals about restoring efc partition
And than i found similar thread like u have explained
It's really work for me
And this article will help most of device of samsung
And xda user
What i have done
In twrp i mount efc partition
Than in advance menu
File manager
Efc
And i have deleted all of file in efc
(Remember not efc partition it self)
Except privo
Privo data and factory app
Than reboot
After boot my phone i got signal back
I was so happy that it was very easy to do
Your guide will help for many device
shabbir143 said:
I was also on similar problem and i lost my efc
Baseband unkwn
Imel null
No signal
I was on s9 port rom by teamexykings and when i update i did dirty flash and my phobe stuck on samsung logo somehow it was boot but it was keeps rebooting than i boot my phone in twrp
When i was trying to wipe system data and dalvic cache
In wipe menu i was shocked to see that it showed internal storage 0mb
I had this problem 1st time
And i have to format my phone to boot properly
U know my big mistake is that i haven't taken a back up of my all apps and my data
After 10-15 min latter it boots
But 2nd shocked was that
I lost my signal my imei my baseband vesrsion unknown
I was so scared to lost my imei
Than i searchon google and i have read lot of articals about restoring efc partition
And than i found similar thread like u have explained
It's really work for me
And this article will help most of device of samsung
And xda user
What i have done
In twrp i mount efc partition
Than in advance menu
File manager
Efc
And i have deleted all of file in efc
(Remember not efc partition it self)
Except privo
Privo data and factory app
Than reboot
After boot my phone i got signal back
I was so happy that it was very easy to do
Your guide will help for many device
Click to expand...
Click to collapse
You deleted all files and folders from EFS Mounted partition? how is it possible working?
You are awesome man!
I just deleted the files in EFS, restarted without installing custom rom and my IMEI was fixed.
I'm definitely donating. How to donate to you?
Thanks for your great work!
cisekpro23 said:
You deleted all files and folders from EFS Mounted partition? how is it possible working?
Click to expand...
Click to collapse
I think samsung phones are capable of regnerating their efs. But its not working for me on samsung galaxy s6. Guess I am screwed.
Hey everyone, I'm sorry for not responding to anyone in this thread. I've been inactive for a long time. I want to thank everyone for trusting the guide and I hope it has worked for you if you tried following the steps. If you have any questions feel free to ask me.
Also I have edited my guide to improve the reading experience because I see my English was absolutely horrible at the time when I wrote the guide.
oh no. i accidentally deleted the efs partition and it can't mount anymore what im gonna do now. im fvcked up please somebody help me
vigilante said:
Edited in 2022 to make it look a bit better!
Hello people, first I want to say that this is my first guide so it doesn't really look professional but I am doing my best to be clear as possible.
In this guide I will be showing you how to repair your IMEI for free/without Z3X box
So lets get into it.
Its better to start fresh in stock rom
So flash the stock rom first
Now we are really starting,
*WARNING* *TAKE A NANDROID BACKUP OF EFS AND BASEBAND BEFORE STARTING*
Step 1) flash TWRP and flash Magisk (if you weren't rooted yet)
Step 2) now search for a custom rom for your phone download it before doing something or just download on pc and move it later
Step 3) now go to mount and select efs or else your efs will be empty at the next step
Step 4) now go to file manager and goto /EFS
Just delete everything in it, you have a backup anyway *WARNING: DO NOT DELETE THE EFS PARTITION IT SELF, IT WILL MAKE YOUR PHONE NOT BOOTING ANYMORE ONLY DELETE THE FILES INSIDE OF IT SO DELETE ALL FILES*
Step 5) now flash the custom rom for s7 edge i would recommend kingrom, do full wipe at the aroma
Step 6) now reboot your phone, first reboot may take 5-10/15 minutes please be patient and make sure you put your phone in the charger if your battery is low now when your phone is in the welcome screen look or your signal is returned if not just setup your phone sometimes it may take a while if your signal is returned then go to dialer and dial *#06# and look or the imei matches the imei of the box (make sure you have the origional box if you dont have this then open the back of your phone, there is a sticker label with your s/n and imei if imei is not good then skip to step 9
Step 7) now if your s/n is ok skip to step... if its not right then download a root explorer and go to /efs/factoryapp and edit the serial no file with a text editor and enter your s/n there now save it and imei and s/n should be alright
Step 8) Now, for IF the IMEI is correct and everything is fully functional, then delete the earlier made backup of EFS and baseband and make a new one with the working partition, then save it somewhere safe on an external drive, the cloud or on an USB, or just a pc that you will never reset or wipe its data.
Step 9) now for if the IMEI is not correct or this guide doesn't work then I can't help you any further except for if you have any questions, however I found a guide for the Samsung galaxy s7/Edge (if you have s8 then click same link because the thread has a link to s8) by Cubz (thanks to Cubz for his guide)
Link: https://www.google.com/amp/s/forum....ow-to-fix-check-drk-imei-issues-t3379516/amp/
S7/E/8 only and some other models as long its an s7 (edge) or s8/+
******* Some tips when you follow the guide*******
1) when you flash combination firmware and it gives you errors then dial *#1234# and look at the cp it should have UX in it (X could be 1,2 or 3 download the correct firmware with the correct bootloader version you can upgrade from u1 to u2 and u2 to u3 but not downgrade from 3 to 2 or 2 to 1
2) if it didn't work then flash back to stock and fully delete everything in efs folder then retry (this is actually just guide B) its better to follow the guide above
3) if you got bootloader exception error then keep tapping the home button fast until it reboots then just manually reboot and enter download mode
The first method was tested and worked on SAMSUNG GALAXY S7 EDGE SM-935F it may work on other Samsung devices and maybe other android devices but I cannot guarantee that it works on your device
** I take no responsibility for any damaged device, make sure you take a back up so you can go back to the state before you started following this guide!**
If the device gets bricked then always flash back to stock, if you cant enter download mode then just wait until your battery drains and then when you put it in the charger it may start up automatically so enter download mode fast or if you got bootloader exception error then keep tapping the home button fast until it reboots then just manually reboot and enter download mode
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Please donate and like this thread if you found this helpful, I have experienced this problem my self and it costed me €60! I said NO its too expansive so then I found this solution and now I am sharing it to the world, I could have let this guide cost €61 but my guides and solutions are free a support would be great for finding this out
Happy flashing and please confirm in the comments below if it worked for your device or not
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Click to collapse
oh no. i accidentally deleted the efs partition and it can't mount anymore what im gonna do now. im fvcked up please somebody help me
bamcarpio123 said:
oh no. i accidentally deleted the efs partition and it can't mount anymore what im gonna do now. im fvcked up please somebody help me
Click to expand...
Click to collapse
Have you created a back up of your efs partition? I have clearly written it in the guide with all caps. If you haven't made a back up, please do so to avoid getting into this situation in the future.
*WARNING* *TAKE A NANDROID BACKUP OF EFS AND BASEBAND BEFORE STARTING*
Click to expand...
Click to collapse
Anyways, I'm sorry to hear you got your self in this situation. Even though it has been a long time since I did this kind of stuff, I still remember that it's possible to fix this issue. I am sure that I have been in this situation before my self and that I somehow managed to get it back. Try to back up all your data, then flash stock rom with CSC file and not Home CSC
vigilante said:
Have you created a back up of your efs partition? I have clearly written it in the guide with all caps. If you haven't made a back up, please do so to avoid getting into this situation in the future.
Anyways, I'm sorry to hear you got your self in this situation. Even though it has been a long time since I did this kind of stuff, I still remember that it's possible to fix this issue. I am sure that I have been in this situation before my self and that I somehow managed to get it back. Try to back up all your data, then flash stock rom with CSC file and not Home CSC
Click to expand...
Click to collapse
I'm sorry for being so stupid because I continued without performing a backup in TWRP, I forgot to back up the EFS, and when I panicked because I was already screwed up, I deleted the efs folder—which is incorrect. I deleted the efs partition before I saw this thread. And now it always says, "failed to mount /efs (invalid argument)" and I've done everything, and it seems like everything is done, I have no idea what to do. I haven't slept for four days and there is still no hope. but my phone is still okay with the stock firmware, but it always restarts. I did almost everything but still nothing
My phone's current csc code is THL (Thailand), but the original is XTC (Philippines), which is my nation, thus I'm curious why THL? of course I flash the right firmware which is the csc is XTC but if I check the CSC the CSC is still THL. I tried to change the csc using tools, but it cannot be change. There may be no hope. I'm worried about losing my phone, yet I'm to blame.
If I lose my IMEI, it won't matter. But the thing is my phone is always restarting every minute.
(can someone know how to disable auto-reboot so i can still use my phone even the EFS is damaged?)
ALSO THANKYOU FOR YOUR REPLY! I APPRECIATE IT!
EDIT: OH I FIX THE EFS PARTITION. NOW MY PROBLEM IS HOW TO GET OUT FROM THIS DARKNESS. HOW CAN I FIX THE IMEI AND BASEBAND WHAT EVER? HMM. BUT I WON'T GIVE UP
bamcarpio123 said:
My phone's current csc code is THL (Thailand), but the original is XTC (Philippines), which is my nation, thus I'm curious why THL? of course I flash the right firmware which is the csc is XTC but if I check the CSC the CSC is still THL. I tried to change the csc using tools, but it cannot be change. There may be no hope. I'm worried about losing my phone, yet I'm to blame.
Click to expand...
Click to collapse
Try to download this tool if you haven't already: https://samfirmtool.com/
I like to use this tool when flashing stock rom because I can download specific versions of stock ROMS and also enter the correct region in it. And to top it off the download is really quick (depending on your download speed of course)
Enter your device model number and at region enter the csc you need. It should download the correct files with the right csc. However, I did find this thread saying it is impossible to change your csc to XTC, but it is always worth a try.
If the CSC is XTC then try to follow this guide again to fix your EFS.
If it is not XTC then try to install a custom rom for your phone that has an aroma installer that allows you to pick a CSC, it might also help with the EFS problem but I am not sure.
EDIT: OH I FIX THE EFS PARTITION. NOW MY PROBLEM IS HOW TO GET OUT FROM THIS DARKNESS. HOW CAN I FIX THE IMEI AND BASEBAND WHAT EVER?
Click to expand...
Click to collapse
Since you have mentioned that your EFS partition is fixed, try to follow the guide again but correctly this time. Maybe it will work this time.
Can you tell me how you checked what your CSC is? And which phone do you have? In case this didn't work.
.
.
vigilante said:
Try to download this tool if you haven't already: https://samfirmtool.com/
I like to use this tool when flashing stock rom because I can download specific versions of stock ROMS and also enter the correct region in it. And to top it off the download is really quick (depending on your download speed of course)
Enter your device model number and at region enter the csc you need. It should download the correct files with the right csc. However, I did find this thread saying it is impossible to change your csc to XTC, but it is always worth a try.
If the CSC is XTC then try to follow this guide again to fix your EFS.
If it is not XTC then try to install a custom rom for your phone that has an aroma installer that allows you to pick a CSC, it might also help with the EFS problem but I am not sure.
Since you have mentioned that your EFS partition is fixed, try to follow the guide again but correctly this time. Maybe it will work this time.
Can you tell me how you checked what your CSC is? And which phone do you have? In case this didn't work.
Click to expand...
Click to collapse
My phone is Samsung Galaxy J8. Before i start to flash custom rom, I took a snapshot of the device's hardware information and discovered that the csc is really XTC. I have completed all the necessary steps. I did everything right, but nothing actually changed. I'm so exhausted that I might just give up. I appreciate your assistance.
If I can't retrieve the imei, it's fine, but unfortunately my phone is always restarting
EDIT: MY PHONE IS NOW FIXED. THE SIMS ARE NOW WORKING, THE SIGNAL IS BACK AND I FEEL SO HAPPY. HOW DO I FIX? WELL I USED THIS METHOD, I DELETE ALL THE FILES FROM EFS FOLDER (NOT THE PARTITION JUST THE FILE INSIDE OF IT) THEN I FLASH THE LATEST STOCK ROM WHICH IS ANDROID 10 BUT THE CSC FILE IS FROM ANDROID 9 AND AFTER THAT I USED TFT SAMSUNG MODULE WHICH IS VERY HELPFUL AND LEGIT TOOL AND ITS 100% FREE!. THEN I FIX THE IMEI AND BASEBAND USING THAT TOOL AND YES THAT SOFTWARE IS A BEAST. AND NOW ITS WORKING PROPERLY. IT TOOK ME 2 WEEKS TO SOLVE THE PROBLEM BUT IN REALITY ITS VERY SIMPLE HAHAHA! IT SAVES ME FROM SPENDING MONEY JUST TO SAVE MY PHONE BUT I DO NOT KNOW THAT I AM THE ONE WHO WILL FIX MY PHONE HAHA HOW COOL IS THAT. JUST DON'T GIVE UP NO MATTER WHAT HAPPENS!
#FVCKTHATZ3XBOX
THANKS TO THIS METHOD AND TO SIR VIGILANTE.
EVERYTHING IS POSSIBLE JUST DONT GIVE UP EVEN YOU'RE TIRED.

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