Database Users

[SOLVED]IMEI Null , Unknown Baseband - (*update) and recover IMEI

[SOLVED] [temp. fix] IMEI Null , Unknown Baseband
Confirmed working with i337 and i337m
Original problem:
Hi
I have received an i337 s4 with imei nul/nul and with no baseband (unknown) - see attached pics.
The user stated that he played with some menu from Samsung secret codes.
It's on stock recovery, download mode doesn't show any flash counters, binary and sys status as 'official' and write protection 'enabled'
Also the home screen shows a certain menu with a notification 'update device information' see attached pic.
I have done a factory rest via stock recovery, still showing the same issues.
How can I solve this hopefully?
update SOLVED:
Thanks to Colonel Sander aka Quasimodem for all the help, here and over hangout.
After having problems with QPST/ EFS pro etc, in repairing, I flashed his efs.img , this removed the home screen error notice and the phone was working normal - still with IMEI = null / null and baseband = unknown
Today he made a flashable zip, which helped me fully flash his efs,
package_extract_file("flash_image", "/tmp/flash_image");
set_perm(0, 0, 0777, "/tmp/flash_image");
ui_print("Installing EFS...");
assert(package_extract_file("efs.img", "/tmp/efs.img"),
run_program("/tmp/flash_image", "/dev/block/mmcblk0p10", "/tmp/efs.img"),
assert(package_extract_file("m9kefs1.img", "/tmp/m9kefs1.img"),
run_program("/tmp/flash_image", "/dev/block/mmcblk0p13", "/tmp/m9kefs1.img"),
assert(package_extract_file("m9kefs2.img", "/tmp/m9kefs2.img"),
run_program("/tmp/flash_image", "/dev/block/mmcblk0p14", "/tmp/m9kefs2.img"),
assert(package_extract_file("m9kefs3.img", "/tmp/m9kefs3.img"),
run_program("/tmp/flash_image", "/dev/block/mmcblk0p15", "/tmp/m9kefs3.img"),
delete("/tmp/efs.img"));
delete("/tmp/m9kefs1.img"));
delete("/tmp/m9kefs2.img"));
delete("/tmp/m9kefs3.img"));
delete("/tmp/flash_image");
After the flash I got back my baseband :victory:
My IMEI has changed from null / null to a 0 / 00 this is not a problem over here, and my network is fully active and amazingly still UNLOCKED.
I would hopefully inject my original IMEI with Z3X box service if I couldn't repair over the QPST and other similar softwares.
Thanks all.
UPDATE:
I have added the EFS zip, this works confirm with i337 and i337m
But this does NOT work with i9505 (I would not advice to flash it on i9500)
Follow all the procedures before going for a flash.
Thanks to @Quasimodem for the original zip.
UPDATE Feb 24 2014: HOW TO RECOVER IMEI
Unfortunately I do not have the phone myself now, but here is success report of recoveing IMEI after flashing this EFS:
Ziida said:
Thanks! Flashing through TWRP didn't do it for me so I installed CWM tonight based on your suggestion and it's worked! My baseband became readable and my IMEI went from "null / null" to "0 / 00"
To anyone else coming into this thread: CWM was a bit of a hassle to install, so I had to use this guide (mind their typos...).
Anyhow, the most exciting part is after flashing the good Captain's EFS file my phone was recognized by QPST again!! I went ahead and flashed the AWS .qcn file from this thread, and now my IMEI number has returned!
I hope you have similar luck, dogmatism!
Click to expand...
Click to collapse
edit: removed ZIP, as it carries imei number of the original provider after flashing AWS .qcn

nikko11126 said:
Hi
I have received an i337 s4 with imei nul/nul and with no baseband (unknown) - see attached pics.
The user stated that he played with some menu from Samsung secret codes.
It's on stock recovery, download mode doesn't show any flash counters, binary and sys status as 'official' and write protection 'enabled'
Also the home screen shows a certain menu with a notification 'update device information' see attached pic.
I have done a factory rest via stock recovery, still showing the same issues.
How can I solve this hopefully?
Click to expand...
Click to collapse
efs or sim issue

orlandoxpolice said:
efs or sim issue
Click to expand...
Click to collapse
True
Sent from my SAMSUNG-SGH-I337 using Tapatalk 2

Try using the S3 method for injecting the IMEI

Colonel Sanders said:
Try using the S3 method for injecting the IMEI
Click to expand...
Click to collapse
It fails, states:
Code:
[COLOR="Sienna"]Writing NV-items from a file:[/COLOR]
Unsuccessfully written NV-items:
00550 (0x0226) - Unknown command
Done.

nikko11126 said:
It fails, states:
Code:
[COLOR="Sienna"]Writing NV-items from a file:[/COLOR]
Unsuccessfully written NV-items:
00550 (0x0226) - Unknown command
Done.
Click to expand...
Click to collapse
I have a backup of my EFS, it may be possible to Hex edit it, and change the IMEI to yours, then manually insert the EFS files with ADB or Terminal Emulator
---------- Post added at 09:26 AM ---------- Previous post was at 09:19 AM ----------
Also, check out this guy, he can remotely repair it:
http://forum.samdroid.net/f70/repair-imei-s2-5729/
I can vouce for his service, I used it with my Captivate

well appreciated.
so should I send you my imei?

The guy is on vacation - it seems... till next month. :banghead:

nikko11126 said:
well appreciated.
so should I send you my imei?
Click to expand...
Click to collapse
Yes pm me your imei and I'll try to edit my efs files... I'll pm you an untouched copy too if you want to have a crack at it...

check pm.
I have also installed stock ROM. but it is as if nothing changed. :what:
I wonder if I should flash a custom recovery and format the system manually and then Odin flash the stock ROM.

nikko11126 said:
check pm.
I have also installed stock ROM. but it is as if nothing changed. :what:
I wonder if I should flash a custom recovery and format the system manually and then Odin flash the stock ROM.
Click to expand...
Click to collapse
That's not going to do anything for this particular issue. I'm about to zip up my backup and send it your way, and dig around inside the files myself. This is repairable somehow.

nikko11126 said:
well appreciated.
so should I send you my imei?
Click to expand...
Click to collapse
NEVERMIND

TheAxman said:
NEVERMIND
Click to expand...
Click to collapse
:what: who's who? what's what?

TheAxman said:
NEVERMIND
Click to expand...
Click to collapse
Problem here?

I was going to give a suggestion, but I will pass. Sorry.

Could you look at you efs folder, does it resemble mine?
---------- Post added at 03:39 PM ---------- Previous post was at 03:36 PM ----------
TheAxman said:
I was going to give a suggestion, but I will pass. Sorry.
Click to expand...
Click to collapse
I can PM you my backup if you want to look too.
I have:
efs.img
m9kefs1.img
m9kefs2.img
m9kefs3.img

I will watch this for awhile, and see what happens. Just trying to figure out what you guys are trying to accomplish...carry on.
My suggestion is be careful with IMEI as if you let someone have your #, and at any point that person plugs in that # in his device and hits the network, you will get both devices blacklisted from the carrier. I am hoping you guys know this.

i have to first root then. give me some time.
I think you sent your efs via dropbox link, i have it downloaded already thanks.

TheAxman said:
I will watch this for awhile, and see what happens. Just trying to figure out what you guys are trying to accomplish...carry on.
My suggestion is be careful with IMEI as if you let someone have your #, and at any point that person plugs in that # in his device and hits the network, you will get both devices blacklisted from the carrier. I am hoping you guys know this.
Click to expand...
Click to collapse
Yep... It was mainly just a show of good will, and to be able to mess around with an untouched EFS backup. I'm having issues finding the IMEI in any of those files.
and Yes, that SS is Slim with Halo

Colonel Sanders said:
Yep... It was mainly just a show of good will, and to be able to mess around with an untouched EFS backup. I'm having issues finding the IMEI in any of those files.
and Yes, that SS is Slim with Halo
Click to expand...
Click to collapse
Not here to do anything but help..thats all. Use the info if you want.
ok, no problem, this is what you guys need to look at, works perfect and it will work for you.
http://forum.xda-developers.com/showthread.php?t=2255192
There are better guides also, do a google search on QPST.
Good luck.

[Q] restoring EFS backup

hi guys my efs isnt messed up just i keep getting random freezes and lock ups no matter what rom i use so im going to start a fresh right from installing a stock rom:silly:
just a question ive never restored a efs and not sure how i have 2 back ups one i did with aroma (omega rom) and one ive done with this http://forum.xda-developers.com/showthread.php?t=2447342
would someone just give me a quick guide on how to restore the efs please
thanks:good:

returned to stock and factory reset and will not connect to wifi just freezes then force closes so will give the efs backup a try does anyone know how i get the original backup to restore from here http://forum.xda-developers.com/show....php?t=2447342

both stock and custom rom wifi not working ahhh any ideas anyone please
thansk

brockyneo said:
both stock and custom rom wifi not working ahhh any ideas anyone please
thansk
Click to expand...
Click to collapse
Only (real) issue I have seen with WiFi not working on STOCK ROM is a user called @samuel clarke had issues with his, and it turned out that his motherboard was fubar. And he had to send it off for repair. It may be possible that your MB has a similar issue, although it could be something very trivial causing it also.

radicalisto said:
Only (real) issue I have seen with WiFi not working on STOCK ROM is a user called @samuel clarke had issues with his, and it turned out that his motherboard was fubar. And he had to send it off for repair. It may be possible that your MB has a similar issue, although it could be something very trivial causing it also.
Click to expand...
Click to collapse
its been working fine till i went back to stock do you know how to restore efs with the backup from aroma

brockyneo said:
its been working fine till i went back to stock do you know how to restore efs with the backup from aroma
Click to expand...
Click to collapse
Not really messed with restoring efs yet I'm afraid :-/ - although that day will come soon, just flashed TWRP myself ready for a custom ROM. You may have to use another tool to restore efs maybe? - still scanning around myself filling my brain with information.

my wifi is switching on and is finding the networks just when i connect it freezes for a bit then says unable to connect to network

only seems to be since ive returned to stock does the baseband,modem have anything to do with wifi?

brockyneo said:
only seems to be since ive returned to stock does the baseband,modem have anything to do with wifi?
Click to expand...
Click to collapse
Well the EFS backup/partition stuff contains WiFi Mac address etc, so could be that it is corrupted slightly? --- Best case I can think of now at this moment in time after reading a fair bit, is to re-restore your EFS and ROM etc and see how it does?

radicalisto said:
Well the EFS backup/partition stuff contains WiFi Mac address etc, so could be that it is corrupted slightly? --- Best case I can think of now at this moment in time after reading a fair bit, is to re-restore your EFS and ROM etc and see how it does?
Click to expand...
Click to collapse
thanks ya just not sure how to restore back up with the 2 different backups i have unless the both no good then im in trouble :crying:

brockyneo said:
thanks ya just not sure how to restore back up with the 2 different backups i have unless the both no good then im in trouble :crying:
Click to expand...
Click to collapse
You have the 14MB or so EFS file? -- I read somewhere earlier on how to restore, just trying to find the link now!
---------- Post added at 04:03 PM ---------- Previous post was at 04:00 PM ----------
simpliest method for efs backup (from device):
1. Download a terminal emulator from playstore
2. Open it and type: Su
3. Allow superuser permission when asked
4. Type this: Dd if=/dev/block/mmcblk0p11 of=/storage/extsdcard/efs.img bs=4096
5. Check your external sd card, there is a efs.img file (14 mb), do some copy in a secure storage.
For restore:
1. You need your efs.img in your external sd card
2. Open terminal and type: Su
3. Type this: Dd if=/storage/extsdcard/efs.img of=/dev/block/mmcblk0p11 bs=4096
4. Reboot
Click to expand...
Click to collapse
Not sure how this could help, but maybe if you could potentially restore using the same process if you have the file on your SD CARD?

radicalisto said:
You have the 14MB or so EFS file? -- I read somewhere earlier on how to restore, just trying to find the link now!
---------- Post added at 04:03 PM ---------- Previous post was at 04:00 PM ----------
Not sure how this could help, but maybe if you could potentially restore using the same process if you have the file on your SD CARD?
Click to expand...
Click to collapse
i have a file around 14 and one about 12 ive tired looking around myself but non of them seem to work sending me mad been at it for 9 hours now ha ha

http://forum.xda-developers.com/showthread.php?t=2447342
OK closest I can find it seems, while you may not have backed up with this, I guess the principle is the same... the restore may work
---------- Post added at 04:17 PM ---------- Previous post was at 04:16 PM ----------
And....
http://forum.xda-developers.com/showpost.php?p=18524176&postcount=1
It has a restore option in the GUI
EDIT2: Since you have the EFS file(s) you could try it

doesnt seem to work doesnt find file

brockyneo said:
doesnt seem to work doesnt find file
Click to expand...
Click to collapse
Ahh bugger, it could be that you have a dodgy EFS file backup then :crying: -- You may need to make a new backup, it's possible if it's currently corrupted it will still read the settings properly... However there's always that risk, You may need to seek advice from a Dev I think or someone who is fluent in EFS restores/backups.
Sorry I couldn't help, good luck though man, let me know how you get on.

ive checked both efs files and both seem ok just getting them to flash back on phone thats been a pain how are people flashing them from a aroma efs backup>

I had similar issue with wifi, so I flashed this [URL="http://forum.xda-developers.com/showthread.php?t=2461929"]ROM[/URL], try it may help you.

Dahdoul said:
I had similar issue with wifi, so I flashed this [URL="http://forum.xda-developers.com/showthread.php?t=2461929"]ROM[/URL], try it may help you.
Click to expand...
Click to collapse
thanks ill give it a try now

aaaaahhhh still no good im almost positive its the efs i need to restore it have 2 backups but carnt get the darn things to flash

brockyneo said:
aaaaahhhh still no good im almost positive its the efs i need to restore it have 2 backups but carnt get the darn things to flash
Click to expand...
Click to collapse
You'll most certainly have to seek a Dev's advice then or someone who definitely knows what they are doing, For now I wouldn't try and flash anything else or mess about in case you manage to lose EFS data and/or brick your phone.
EDIT: Is there no restore option in Aroma when you reinstall?
---------- Post added at 07:39 PM ---------- Previous post was at 07:21 PM ----------
radicalisto said:
You'll most certainly have to seek a Dev's advice then or someone who definitely knows what they are doing, For now I wouldn't try and flash anything else or mess about in case you manage to lose EFS data and/or brick your phone.
EDIT: Is there no restore option in Aroma when you reinstall?
Click to expand...
Click to collapse
EDIT2: You may have one final option - Emergency recovery mode via KIES _ not 100% sure if it'd work, but it may help you at least get back to stock unrooted with EFS back to normal.

SM-G900V unknown baseband and restart

Hi,
Phone restarts automatically with no imei and unknown baseband, I download stock firmware 4.4.2 and install on it but same situation,
any suggestion or help pls,
thanks
br

Isn't IMEI used for phone identification along with MEID? If thats blank, would it be an issue on Verizons side?

Elite49 said:
Isn't IMEI used for phone identification along with MEID? If thats blank, would it be an issue on Verizons side?
Click to expand...
Click to collapse
imei is unknow

2 Choices
nsnobel2 said:
imei is unknow
Click to expand...
Click to collapse
Hi
I don't know if you've fixed your issue with your g900v or not, but i have the same problem and the same phone and obviously the same symptoms ...
As far as I've tried, nothing worked not ODIN flashing ROMs, or QPST to write IMEI or EFS professtiona ADB .... etc.
What I've come to know is this :
1- keep the phone in a safe place till next months reveal a solution through developers here or elsewhere.
2- Flash the Original Samsung Verizon Rom ( Full Package with efs and bootloader mounts and all partitions " Clean Flash" ) which costs about 100$ .
3- Change the board for a (200$) new one .
So, I would try to pay the 100$ and flash the original ROM, and comeback to tell if it solved the Problem.
I wish if you share any different approach or feedback . I would love to hear it .
Bye

It could possibly be that your EFS folder is damaged. This is where your IMEI and Baseband info is stored. If that's the case for your device, these steps should work. I've done this on two phones (one being an S5) and it fixed this problem.
I'm assuming that you're rooted. If not then you'll need to root your device first. And you need to have debugging enabled. What this does is backups the files from the EFS folder, repairs the partition tables, then restores the files to the repaired folder.
1. Connect the phone to your computer. (Windows)
2. Download this: https://www.dropbox.com/s/v2h5dzisjd0rgj5/EFS_Professional_2.1.73_Release.zip?dl=0
3. Extract and run the program
4. Click EFS Professional... It will open a window showing that it found your phone
5. Click on the Backup Tab and make sure all of the partitions are checked, and your Device Filter is recognized
6. Hit the Backup button to backup the EFS folder
7. After that's done, click the Restore button and it will restore your files to the EFS folder.
I hope this helps you.

There used to be a tool for the Note 2 I believe, maybe S4, that would let you re-write your EFS if it accidentally got erased. Not a backup/restore deal, but a tool to key in your IMEI and it would write it to the phone. Maybe research that tool for a fix?

joshw0000 said:
There used to be a tool for the Note 2 I believe, maybe S4, that would let you re-write your EFS if it accidentally got erased. Not a backup/restore deal, but a tool to key in your IMEI and it would write it to the phone. Maybe research that tool for a fix?
Click to expand...
Click to collapse
Was it a tool specifically for the Note 2, or multiple Samsung devices, or maybe a universal program like CDMA Workshop? I love that program. It's what I use when it comes to actually entirely rewriting files like this. Most of the time a full rewrite isn't needed though if the EFS folder has just been damaged. Which "damaged" is totally the wrong word here, but that's what it's called for some reason. I really don't even know how it happens, but I do know when it does, it usually just jumbles and/or fragments the info in the folder and needs to be put back in it's correct order. Kind of like defragging in Windows. Just a tool like you're talking about would definitely be cool for me to have though. I shall start my quest to find it. Lol

Please some help
Any luck yet ???
Got the same issue here, and none of the threads here worked .

Same problem
Hello,
I have the exact same problem. I bought the phone here in Mexico, and the phone came with erased EFS folder. Phone restarts automatically when screen turns off. When I'm using the phone, it works just fine, but some seconds after screen goes off, phone restarts automatically. EFS folder is messed up, I've tried out a lot EFS restoring tools with no luck.
I tried QPST but it does not detect the phone, only appears "?" and "No phone" blinking. The same happens with DFS Tool.
I will try to look for that tool joshw0000 talks about.
I hope we can find out a solution for this excellent phone.
Bye.

Hey ...
I did a factory reset and cache wipe, and now the phone stopped restarting when the screen goes off, but still got the "Unknown" issues.
But at least I got rid of the annoying restarts.
570 ppl read this and still no answer, I got to admit ... it's tough.
Sent from my SM-G900V using XDA Free mobile app

[Q&A] [IMEI][efs] SAMSUNG NOTE 3 EFS BACKUP/RESTORE

Q&A for [IMEI][efs] SAMSUNG NOTE 3 EFS BACKUP/RESTORE
Some developers prefer that questions remain separate from their main development thread to help keep things organized. Placing your question within this thread will increase its chances of being answered by a member of the community or by the developer. Thanks for understanding and for helping to keep XDA neat and tidy! :smile:

cassinni said:
Doesnt work for me and i am rooted on 4.3
"The system cannot find the path specified...."
USB Debugging enabled aswell..
any help?
thanks
Click to expand...
Click to collapse
Same problem here.

Fixing IMEI After Downgrading to 4.3 from 4.4.2
I need to know how to install my original or a working IMEI onto my AT&T Note 3 SM-N900A any info is helpful thanks hopefully someone knows the answer and can reply fast.

Same here.. is this method is works with sm-n900a at&t?????? after updating to NCUC2 4.4.2 my efs folder get damaged.. now unknown baseband and also IMEI is null/null
Please help me out

explanations
call out of the explanations and some easier. Thank you.

I've always found the easiest way to backup/restore EFS is via TWRP. Just select backup then just tick EFS. That particular backup will then contain only your EFS partition which you can restore at any point, even if your phone doesn't boot. As long as you can get into your recovery you're good to go.
Sent from my SM-N9005 using Tapatalk

SM-N900
Hi guys, i have SM-N900 and i have backup of EFS.img and efs.tar. How can i restore it? TAR file can't flashed by odin. Can't extract EFS.img. now my phone is Not registered on network

Hi guys need help
Can u send me efs img file and all efs files i m using sm-n9005, i dont have efs backup and now imei null and baseband unknown

LOST EFS Files... PLEASE HELP
Hi
i have a galaxy note 3 (sm-n900). Suddenly, Last week it just lost the coverage of the network and it is not able to connect to any network (mobile network, wifi, Bluetooth) anymore.
I searched over the Internet and found that such problem is related to EFS files.
My dedevice is not rooted so i have not flashed any rom.
How can i fix it???

efs
hi ive corrupted my efs and didnt back it up befroe root.
however unusual to see my sm-n900 picks up its original imei for some time and then it shows null0null or imei with 0049 .
efs wont repair after restore to stock firmware . could you developers please build me an efs if I gave you my IMEI????

efs is corrupted wont repair
is there anyone who could help me building an efs for sm-n900
i got my efs corrupted .dont have the backup , and the correct IMEI shows up for an hour or two and then goes away showing null/null or 0049
i got an advice that developers on xda would help me out
pplease tell me if anyone could help me out

imei Null
Hello everyone, can anyone help ; i have a Note 3 sm-N9005 and i messed up and didn't back up my efs files and now i have IMEI null and baseband unknown how cani fix that !! please help!!

Hello,
the backup system does not work!
finally falsh via odin pass, but reboot as the freeze remains on the samsung logo.
instead of bin \ adb shell su -c "-s -l make_ext4fs /sdcard/temp2/system.img.ext4 2304M / system"
* I've used it "dd"

xbillou360 said:
Hello,
the backup system does not work!
finally falsh via odin pass, but reboot as the freeze remains on the samsung logo.
instead of bin \ adb shell su -c "-s -l make_ext4fs /sdcard/temp2/system.img.ext4 2304M / system"
* I've used it "dd"
Click to expand...
Click to collapse
Did you fix it? how?
Can you be more specific

no imei, no baseband, no working efs.img
hey guys,
im new here and my english is no the best, but i try to explain my problem.
i tried to flash the cyanogenmod 12 on my n-9005 and first i thought it works fine. but then i saw there was no emei and baseband anymore. so flashed 4.4.2 again and tried some things and, i dont know exactly why, everything was fine. so i made a efs backup with the terminal emulator (dd /.......) and got a file named efs.img (14mb). then i tried to flash cyanogenmod 12 one more time and again there was imei 0/0 and no baseband. so i made the recovery with the efs.img , but it didnt work. again i flashed it back to 4.4.2, but still the same problem. now its the third day without sleeping and i dont know what to do. can someone help me?
viktor

knox trip?
Hi guys!
Sorry if the question has already been asked but couldn't find the answer, so please bear with me ... My question is: does the backup procedure (and later restore) as described in the thread trip knox and voids your warranty?
Thanks in advance!

Hello everyone. I hope you could help me with flashing Lollipop on my Galaxy Note 3. I haven't received it OTA so I am planning to download the official rom and flash it using Odin. I have used Odin in the past to flash roms and from my own experience I know that every time I flashed - the phone also got factory reset and I lost all the data and the apps already installed. I would like to flash without factory resetting my phone. also, I don't want to root my phone. Please help. Thank you.
Sent from my SM-N9005 using Tapatalk

monitorix said:
Hello everyone. I hope you could help me with flashing Lollipop on my Galaxy Note 3. I haven't received it OTA so I am planning to download the official rom and flash it using Odin. I have used Odin in the past to flash roms and from my own experience I know that every time I flashed - the phone also got factory reset and I lost all the data and the apps already installed. I would like to flash without factory resetting my phone. also, I don't want to root my phone. Please help. Thank you.
Sent from my SM-N9005 using Tapatalk
Click to expand...
Click to collapse
Odin WILL overwrite the phone. Without Root you can't do a nandroid (full phone backup) and about your only option is to get something like ES File Explorer and try to copy out all your media files, docs etc.
All the best ways to save stuff require root access.
You could also try SMS Backup & Restore and Call Logs Backup & Restore to save those out to your extSD. Also you can export your Contacts to extSD and import them back once the flashing is done.
---------- Post added at 03:14 PM ---------- Previous post was at 03:08 PM ----------
viktorno5 said:
hey guys,
im new here and my english is no the best, but i try to explain my problem.
i tried to flash the cyanogenmod 12 on my n-9005 and first i thought it works fine. but then i saw there was no emei and baseband anymore. so flashed 4.4.2 again and tried some things and, i dont know exactly why, everything was fine. so i made a efs backup with the terminal emulator (dd /.......) and got a file named efs.img (14mb). then i tried to flash cyanogenmod 12 one more time and again there was imei 0/0 and no baseband. so i made the recovery with the efs.img , but it didnt work. again i flashed it back to 4.4.2, but still the same problem. now its the third day without sleeping and i dont know what to do. can someone help me?
viktor
Click to expand...
Click to collapse
There are things you can do if you search for IMEI lost or similar words. But simplest is probably to DL the Stock version for your phone & use Odin to flash it. That will lose all your data and apps etc on the intSD so you might want to look for other ways first.
I'm guess here but I think maybe you have a problem trying to downgrade your modem/bootloader. CM12 is (if I remember right) v5.0.x of Android, and since Kitkat there have been issues going BACK to previous versions. I think maybe you upgraded your BL to the LP version then it failed when you tried to go back to KK version.
You do not say which 4.4.2 you flashed but you could look for a v5 of that ROM and try that first.

sabirthe1 said:
is there anyone who could help me building an efs for sm-n900
i got my efs corrupted .dont have the backup , and the correct IMEI shows up for an hour or two and then goes away showing null/null or 0049
i got an advice that developers on xda would help me out
pplease tell me if anyone could help me out
Click to expand...
Click to collapse
have you solved it yet? I met this problem but dont know how to handle it.
can you give me a hint?

[ Q ] efs folder fix

Hello. I was wondering if anyone knows how or could point me in the direction on how to fix my efs folder. It seems like it is only half corrupted. I can still dial #*06# and can still get my imei number but every reboot put me in safe mode and some of my apps don't work. I have root explore and I go into efs folder and nothing is there. It almost seems like I have a semi root. I am currently rooted and on a custom ROM. If anyone could help that would be great. Thanks and have a great holiday.

Taiweanthony said:
Hello. I was wondering if anyone knows how or could point me in the direction on how to fix my efs folder. It seems like it is only half corrupted. I can still dial #*06# and can still get my imei number but every reboot put me in safe mode and some of my apps don't work. I have root explore and I go into efs folder and nothing is there. It almost seems like I have a semi root. I am currently rooted and on a custom ROM. If anyone could help that would be great. Thanks and have a great holiday.
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Reflashing the stock firmware for your CSC may help.

Thanks for your help. I will try it out.

efs
I flashed the stock firmware to csc and I still have the same problem. Anything else I could do?

EFS restore
Heeeeelp
I have no net, no wi-fi, no mobilnet. I wanted to restore EFS image file but it says I have to buy mannyvinny efs backup tool pro version. But without net it failed
I need help, how to restore img files in other way
Thanks for any help:crying:

Taiweanthony said:
I flashed the stock firmware to csc and I still have the same problem. Anything else I could do?
Click to expand...
Click to collapse
Try this post.