Database Users

Baseband Unknown and no IMEI number

Hi All
I have the following error on my Samsung Galaxy Note 3 Exynos (N900).
My phone was rooted and Ive been running a custom ROM. Now I want to go back to stock but when I load any stock rom I get the Baseband Unknown and no IMEI number problem.
I have tried
* 4 different stock roms - same issue
* flashed separate modem driver - same issue
* restored EFS folder/partition - same issue
The only way I can get it to work again is by loading the custom ROM (http://forum.xda-developers.com/showthread.php?t=2503206).
Seeing as the custom ROM works and everyone says the problem is with the EFS folder. I backed up the EFS folder with Custom Rom loaded and restored the EFS folder with stock ROM loaded. Still the same issue - Baseband Unknown and no IMEI number.
I know there are a lot of posts regarding this issue and all seem to point to the EFS folder. Mine however doesnt seem to be a EFS folder issue.
Any other ideas?
Just FYI I also ran the KNOX warranty reset (not sure if this is relevant)
Thank you
Morne

Only thing that fixed my phone with that same issue was SPT box. Ask your local repair shop

I had unknown baseband and null imei yesterday on my N9005 after flashing stock rom using Odin. After 5 hours trying to find a solution I almost lost hope but then I tried flashing a other modem and it worked Phone works now and I have been using it all day.
The modem I flashed is CP_N9005XXUFNG2
I flashed it on N9005XXUEND5 (Nordic)
So my tip for you is to try find a different modem for your phone and flash it using Odin
Hope it helps

fredrik8 said:
I had unknown baseband and null imei yesterday on my N9005 after flashing stock rom using Odin. After 5 hours trying to find a solution I almost lost hope but then I tried flashing a other modem and it worked Phone works now and I have been using it all day.
The modem I flashed is CP_N9005XXUFNG2
I flashed it on N9005XXUEND5 (Nordic)
So my tip for you is to try find a different modem for your phone and flash it using Odin
Hope it helps
Click to expand...
Click to collapse
I'm downloading some other modem drivers now. Thanks
Will let you know if this helped

I tried all of the following modems:
N900_DDUBMI3_MODEM
N900_DDUBMI4_MODEM
N900_DXUBMI1_MODEM
N900_UBUBMI2_MODEM
N900_XXUBMI2_MODEM
Still the same issue

morne4444 said:
I tried all of the following modems:
N900_DDUBMI3_MODEM
N900_DDUBMI4_MODEM
N900_DXUBMI1_MODEM
N900_UBUBMI2_MODEM
N900_XXUBMI2_MODEM
Still the same issue
Click to expand...
Click to collapse
The working custom rom has XXUENE1 as the modem, Im trying to find it and test with stock rom

morne4444 said:
The working custom rom has XXUENE1 as the modem, Im trying to find it and test with stock rom
Click to expand...
Click to collapse
I cant find that modem on its own

N9005 LTE 32GB sama IMEI null and unkown baseband
I did what you did with my N9005. i am trying different modems also still same (
a question to fix it but not sure..
did you thicked " phone bootloader update " during stock rom installation ?
I am not an expert, I just read somewhere on XDA to install 4.4.2 stock rom with ticked .i plan to try it before try just wanna ask you

ohayyam said:
I did what you did with my N9005. i am trying different modems also still same (
a question to fix it but not sure..
did you thicked " phone bootloader update " during stock rom installation ?
I am not an expert, I just read somewhere on XDA to install 4.4.2 stock rom with ticked .i plan to try it before try just wanna ask you
Click to expand...
Click to collapse
I havent tried it

morne4444 said:
I havent tried it
Click to expand...
Click to collapse
i am going to try now... i will inform you soon...
I could not select to thick phone bootloader update, during stock rom installation.
We have to find necessary files sperately to correct what we did wrong, and during normal stock installation damaged side does not rewritten that results still imei null and basband unkown (
1-) i try stock rom with pit files 718 and 805 eur open 32GB for N9005 but not fixed..
2-) Tried different modems on different stock or custom roms ...
Now time to find BOOTLOADER FILES TO INSTALL WITH ODIN )

Not sure this would help but have you tried a Factory Reset with clearing all cache's? If it works then try reflashing your stock saved ROM over it to regain all your apps.

Here is what happend.
The rom I was using before I got unknown baseband and null imei was N9005XXUFNF4. Note, this is the latest UK rom. I then flashed a Nordic rom that was available at that time which was N9005XXUEND5. Note, this rom is older and uses an older modem than N9005XXUFNF4. This caused unknown baseband and null imei for me.
The reason why I flashed in the first place was because I'm from Sweden and the new update that N9005XXUFNF4 had was available OTA on N9005XXUEND5 rom.
The latest Nordic rom that I downloaded from sammobile is N9005XXUFNG2. Note, this rom uses N9005XXUFNG2 modem, the same modem I flashed on N9005XXUEND5.
Problem now is that I can't receive OTA because it now thinks that I got the latest update already because I got the latest modem installed.
I flashed latest Nordic rom N9005XXUFNG2 today and everything is working fine now.

fredrik8 said:
Here is what happend.
The rom I was using before I got unknown baseband and null imei was N9005XXUFNF4. Note, this is the latest UK rom. I then flashed a Nordic rom that was available at that time which was N9005XXUEND5. Note, this rom is older and uses an older modem than N9005XXUFNF4. This caused unknown baseband and null imei for me.
The reason why I flashed in the first place was because I'm from Sweden and the new update that N9005XXUFNF4 had was available OTA on N9005XXUEND5 rom.
The latest Nordic rom that I downloaded from sammobile is N9005XXUFNG2. Note, this rom uses N9005XXUFNG2 modem, the same modem I flashed on N9005XXUEND5.
Problem now is that I can't receive OTA because it now thinks that I got the latest update already because I got the latest modem installed.
I flashed latest Nordic rom N9005XXUFNG2 today and everything is working fine now.
Click to expand...
Click to collapse
Thanks man.
I went from the stock rom that the phone came out with in South Africa to a Russian Rom (latest version) to a custom ROM. I came right by installing N900XXUENG1_N900ODDENF1_INS (India), it is the latest version available and it worked !!!!
Problem Resolved

morne4444 said:
Thanks man.
I went from the stock rom that the phone came out with in South Africa to a Russian Rom (latest version) to a custom ROM. I came right by installing N900XXUENG1_N900ODDENF1_INS (India), it is the latest version available and it worked !!!!
Problem Resolved
Click to expand...
Click to collapse
Nice

fredrik8 said:
Nice
Click to expand...
Click to collapse
Thanks for the help and suggestions !

morne4444 said:
Thanks for the help and suggestions !
Click to expand...
Click to collapse
You're welcome

My N9005 32GB story little bit unkown.
It is Stupid Story but i did not check original rom was 4.3 or 4.4.2 ??? Because i got 2 new phones from my friends to make root and install custom ROM. One of them was 4.4.2 rom that i was sucessfully root and install omega20 ROM. I suppose both phone was same and did not checked second one then when i was installing 4.4.2 CWM KK files with ODIN phone was freeze and fail !!!
I tried many stock roms and custom roms some recovery fix scripts etc. etc. Finally i start to use Mirek's method till adb commands... Last thing that i could not success to check Mirek's method is good for my phone... Last step was writing serial number IMEI no to dev block but i could not do it...Because of my adb knowledge nothing. I did many things blindly ) let me do try and see the results...
Let's forget about past. Please advice me what should i do now to try to fix the phone.
Final status is ROM installed stock SEE ROM and my CSC now EUR but still imei null and unknown baseband... AP:N9005XXUFNG2 , CSC:N9005OXXFNG2
I am sure that the phone info shows original CSC EUR, this phone was XSI. During the custom rom installation CSC was changed. ( sweet rom can change CSC code, during aroma installation asking to select CSC ).
Any advice ?
Thanks and Regards.

ohayyam said:
My N9005 32GB story little bit unkown.
It is Stupid Story but i did not check original rom was 4.3 or 4.4.2 ??? Because i got 2 new phones from my friends to make root and install custom ROM. One of them was 4.4.2 rom that i was sucessfully root and install omega20 ROM. I suppose both phone was same and did not checked second one then when i was installing 4.4.2 CWM KK files with ODIN phone was freeze and fail !!!
I tried many stock roms and custom roms some recovery fix scripts etc. etc. Finally i start to use Mirek's method till adb commands... Last thing that i could not success to check Mirek's method is good for my phone... Last step was writing serial number IMEI no to dev block but i could not do it...Because of my adb knowledge nothing. I did many things blindly ) let me do try and see the results...
Let's forget about past. Please advice me what should i do now to try to fix the phone.
Final status is ROM installed stock SEE ROM and my CSC now EUR but still imei null and unknown baseband... AP:N9005XXUFNG2 , CSC:N9005OXXFNG2
I am sure that the phone info shows original CSC EUR, this phone was XSI. During the custom rom installation CSC was changed. ( sweet rom can change CSC code, during aroma installation asking to select CSC ).
Any advice ?
Thanks and Regards.
Click to expand...
Click to collapse
Have you tried flashing a different modem?
Here is my previous post.
fredrik8 said:
I had unknown baseband and null imei yesterday on my N9005 after flashing stock rom using Odin. After 5 hours trying to find a solution I almost lost hope but then I tried flashing a other modem and it worked Phone works now and I have been using it all day.
The modem I flashed is CP_N9005XXUFNG2
I flashed it on N9005XXUEND5 (Nordic)
So my tip for you is to try find a different modem for your phone and flash it using Odin
Hope it helps
Click to expand...
Click to collapse

fredrik8 said:
Have you tried flashing a different modem?
Here is my previous post.
Click to expand...
Click to collapse
I have 6 different N9005 LTE modems 5 of them failed. now i am trying last one.
installing with odin two times with unthicked autobootloader as mentioned read one of the xda forum tread.
A question how can i know modem installed succsesfully because of unkown baseband phone info shows nothing !!!
is there another way to understand installed modem ?
i plan to install last E3 modem which was latest. i started from oldest to newest. on XXuFNG2 rom and csc EUR. if last one fail then i plan to follow mireks methods with adb commands. i was reading adb commands on android.com and viewed many videos on youtube about adb..
i am still working reading trying but still imei null and unknown baseband.

Same boat
I'm in the same boat as you guys!
No network, baseband, imei, nothing
I was on 4.3 MK2 XSI and flashed KK netherlands PHN stock ND3.
On first flashing, I got error "invalid ext4" on odin 3.09
Then I flashed the same ND3 with pit file and it passed.
Then this happened. no network, imei.
BTW I have EFS backup in .IMG backup which has that mc11.something file. But replacing that is of no use.
What do you guys suggest ? Can I flash NG2 stock on this XSI region stock ?
Will I require to use PIT file ?
Thanks

[q] help please note 3 no imei or baseband

hi basically i have a note 3 which was working fine i then done a factory reset in settigs and now it says baseband UNKNOWN and imei UNKOWN
ive read up on it and says i need to flash a stock rom via odin ?
im pretty new to this and i belive the rom i need is
EVR-N9005XXUGNG1-20141015154736.zip
as im in the uk ?
i cannot download it anywhere ive tried everywhere a link or some help would be very appricated
thanks very much

Just flash a xxuene1.zip modem from recovery or flash a stock rom with xxuene1 baseband.
it worked for me.

N9005 Baseband version unknown, IMEI null HELP!

Yesterday I was running unofficial lollipop leak rom everything was okay then I downgraded to official kitkat via odin after that the phone became so lagy and weird, unknown Baseband version, IMEI null also camera and sound doesn't work! I tried to flash the lollipop leak again but no result same problem I also tried many stock and custom roms I was using before but nothing changed Baseband still unknown and unfortunately I don't have EFS backed up! Please help me solving this problem.

So much flashing and no backup ever. Bingo
Search the forums because there is an answer

I didn't know I'd need it :/
Is there a solution for this case?

Problem solved.

how
MarshR8 said:
Problem solved.
Click to expand...
Click to collapse
how u solved it ????

i have this problem
i have this problem how to fix this pls

MarshR8 said:
Problem solved.
Click to expand...
Click to collapse
how you solved your problems I have the same. please

Just do the firmware recovery in Samsung Kies.
Take out battery and follow instructions in firmware upgrade and initialization on Samsung Kies.
Should reset everything to normal again
If it doesn't ask for model number and serial number in the setup you need to have the phone disconnected and connected when it asks.
Hope this helps

Why would he help others when he got help. Just run away is the norm. ?

Null / null imei, unknow baseband

Hi, my phone is i9505, i have null imei and unknow baseband. I
was on 5.0.1 when i buyed, my misstake i dont verify the imei if is broke or not. Imei was /01
After that i flashed 4.4.2 ([email protected] with Modem_GNK2_FULL.tar and Bootloader_GNK2.tar) in hope imei will restore but neeh...., i dont have efs folder. Now imei show me null / null.
I have any chance to get imei back to use cellular network? If YES, are you kindly to give me step by step guide with download links?
Thank you all, i`m disperated

Flash a lollipop modem. Then you get your imei back.

i allready tryed, it is same.

darktyroll said:
Hi, my phone is i9505, i have null imei and unknow baseband. I
was on 5.0.1 when i buyed, my misstake i dont verify the imei if is broke or not. Imei was /01
After that i flashed 4.4.2 ([email protected] with Modem_GNK2_FULL.tar and Bootloader_GNK2.tar) in hope imei will restore but neeh...., i dont have efs folder. Now imei show me null / null.
I have any chance to get imei back to use cellular network? If YES, are you kindly to give me step by step guide with download links?
Thank you all, i`m disperated
Click to expand...
Click to collapse
Hi,
You might search for a modem that from your region code. If you don't know your region code, unfortunately you should go to Samsung Service Center as you didn't have any EFS backup.

krasCGQ said:
Hi,
You might search for a modem that from your region code. If you don't know your region code, unfortunately you should go to Samsung Service Center as you didn't have any EFS backup.
Click to expand...
Click to collapse
Phone (i belive was buyed in Germany), his build inside is LRX22C.i9505XXUHOB7. I need to flash modem for this build or modem from network where i live? I`m not in Germany.
Some download links please if you kindly.

darktyroll said:
Phone (i belive was buyed in Germany), his build inside is LRX22C.i9505XXUHOB7. I need to flash modem for this build or modem from network where i live? I`m not in Germany.
Some download links please if you kindly.
Click to expand...
Click to collapse
Flash modem from the region where the phone was bought. Since I couldn't find the package that only contains modem, you should download a full firmware. Grab it one from SamMobile or Samsung Updates.

krasCGQ said:
Hi,
You might search for a modem that from your region code. If you don't know your region code, unfortunately you should go to Samsung Service Center as you didn't have any EFS backup.
Click to expand...
Click to collapse
darktyroll said:
Phone (i belive was buyed in Germany), his build inside is LRX22C.i9505XXUHOB7. I need to flash modem for this build or modem from network where i live? I`m not in Germany.
Some download links please if you kindly.
Click to expand...
Click to collapse
It really has nothing to do with a modem with your region code.
You can use any modem it really doesn't matter.
Try flashing a stock lollipop firmware.

krasCGQ said:
Hi,
You might search for a modem that from your region code. If you don't know your region code, unfortunately you should go to Samsung Service Center as you didn't have any EFS backup.
Click to expand...
Click to collapse
Lennyz1988 said:
It really has nothing to do with a modem with your region code.
You can use any modem it really doesn't matter.
Try flashing a stock lollipop firmware.
Click to expand...
Click to collapse
Well, let me explain more.
1- This phone was with stock I9505XXUHOB7 5.0.1 and IMEI was / 01, after that i flash [email protected] 4.4.2
1.1- I dont know if i can come back from stock 5.0.1 to stock 4.4.2, can you tell me if i can? I was afraid and i tryed with that repack rom.
After that IMEI was null/null with unknow baseband.
2- so i flash again that stock 5.0.1 and i have IMEI null/null with a working baseband.
Advices?

Hi. I am in the same situation.
i flashed lollipope to my i9500 then i returned to 4.4 after that i flashed custom rom the result is i got nul imei and when i flashed lollipop modem i only got generic imei.
log time a go i backuped my efs partition to my PC but loose it i dont know how.
now my situation is : generic imei. no gsm network.
any solution please.
Nb : i have another working s4 i9500

darktyroll said:
Well, let me explain more.
1- This phone was with stock I9505XXUHOB7 5.0.1 and IMEI was / 01, after that i flash [email protected] 4.4.2
1.1- I dont know if i can come back from stock 5.0.1 to stock 4.4.2, can you tell me if i can? I was afraid and i tryed with that repack rom.
After that IMEI was null/null with unknow baseband.
2- so i flash again that stock 5.0.1 and i have IMEI null/null with a working baseband.
Advices?
Click to expand...
Click to collapse
sentinelle20 said:
Hi. I am in the same situation.
i flashed lollipope to my i9500 then i returned to 4.4 after that i flashed custom rom the result is i got nul imei and when i flashed lollipop modem i only got generic imei.
log time a go i backuped my efs partition to my PC but loose it i dont know how.
now my situation is : generic imei. no gsm network.
any solution please.
Nb : i have another working s4 i9500
Click to expand...
Click to collapse
Unfortunately, you both should bring your phone to Samsung Service Center for IMEI restoration.

Here is a guide for downgrading:
http://forum.xda-developers.com/galaxy-s4/general/i9505-downgrade-5-0-lollipop-to-4-4-2-t3052472
If you still can't get it back, then a guy claimed this method worked for him.
https://www.youtube.com/watch?v=LgPEIeXDPNA
If it's still not fixed then service centre.

!! Sm-n900k !! Imei null / baseband unknow / sw rev check failed fused 4 > binary 3

!! Sm-n900k !! Imei null / baseband unknow / sw rev check failed fused 4 > binary 3
Hi Guys!
I have a SM-N900K (KT version - South Korea) Galaxy Note 3. I upgraded it to Lollipop 5.0.1 and now IMEI is NULL. I can not fix it. I don't have any EFS backup.
I tried to downgrade by flashing stock 4.4.2 rom : N900KKKUENF2_N900KKTTENF2_N900KKKUENF1_HOME.tar.md5 but got error: SW Rev Check Failed Fused 4 > Binary 3.
I flashed with Stock 5.0 Rom: ALL_KTT_N900KKKU0GOC4_N900KKTT0GOC4_CL4362511_QB4250245_REV00_user_low_ship_MULTI_CERT.tar.md5 and another Rom: GALAXY_NOTE3_N900K_SPACEX_LOLLIPOP_MANHIT.tar.md5 but still same IMEI Problem!!!
There are not much Custom Rom for SM-N900K. So I tried to flash Sm-N9005 Custom Roms but there are always "Could not do normal boot!" problem.
I live in TURKEY! So I can't send the phone to South Korea. I gave my phone to a phone repairman. He couldn't fix it, even if he used up-to-date box.
I also looked for how to unlock bootloader. But there is none as I saw.
Please help me guys. I couldn't downgrade to 4.4.2 KitKat and still have IMEI null problem.
Thanks in advance...

rakyb said:
Hi Guys!
I have a SM-N900K (KT version - South Korea) Galaxy Note 3. I upgraded it to Lollipop 5.0.1 and now IMEI is NULL. I can not fix it. I don't have any EFS backup.
I tried to downgrade by flashing stock 4.4.2 rom : N900KKKUENF2_N900KKTTENF2_N900KKKUENF1_HOME.tar.md5 but got error: SW Rev Check Failed Fused 4 > Binary 3.
I flashed with Stock 5.0 Rom: ALL_KTT_N900KKKU0GOC4_N900KKTT0GOC4_CL4362511_QB4250245_REV00_user_low_ship_MULTI_CERT.tar.md5 and another Rom: GALAXY_NOTE3_N900K_SPACEX_LOLLIPOP_MANHIT.tar.md5 but still same IMEI Problem!!!
There are not much Custom Rom for SM-N900K. So I tried to flash Sm-N9005 Custom Roms but there are always "Could not do normal boot!" problem.
I live in TURKEY! So I can't send the phone to South Korea. I gave my phone to a phone repairman. He couldn't fix it, even if he used up-to-date box.
I also looked for how to unlock bootloader. But there is none as I saw.
Please help me guys. I couldn't downgrade to 4.4.2 KitKat and still have IMEI null problem.
Thanks in advance...
Click to expand...
Click to collapse
Why did you flash other variants roms? Because if you flashed right rom it would not brick it and lose imei.
Have you tried efs recovery method somewhere here at q&a forum?

kenny1991 said:
Have you tried efs recovery method somewhere here at q&a forum?
Click to expand...
Click to collapse
I did not tried. I will look it up. If you have any helpful link about efs recovery, can you post it here?

rakyb said:
Hi Guys!
I have a SM-N900K (KT version - South Korea) Galaxy Note 3. I upgraded it to Lollipop 5.0.1 and now IMEI is NULL. I can not fix it. I don't have any EFS backup.
I tried to downgrade by flashing stock 4.4.2 rom : N900KKKUENF2_N900KKTTENF2_N900KKKUENF1_HOME.tar.md5 but got error: SW Rev Check Failed Fused 4 > Binary 3.
I flashed with Stock 5.0 Rom: ALL_KTT_N900KKKU0GOC4_N900KKTT0GOC4_CL4362511_QB4250245_REV00_user_low_ship_MULTI_CERT.tar.md5 and another Rom: GALAXY_NOTE3_N900K_SPACEX_LOLLIPOP_MANHIT.tar.md5 but still same IMEI Problem!!!
There are not much Custom Rom for SM-N900K. So I tried to flash Sm-N9005 Custom Roms but there are always "Could not do normal boot!" problem.
I live in TURKEY! So I can't send the phone to South Korea. I gave my phone to a phone repairman. He couldn't fix it, even if he used up-to-date box.
I also looked for how to unlock bootloader. But there is none as I saw.
Please help me guys. I couldn't downgrade to 4.4.2 KitKat and still have IMEI null problem.
Thanks in advance...
Click to expand...
Click to collapse
I have same issues, but cannot find the way to fix it. Did you fixed it, can you share ?
Thanks

I had this problem 3 or 4 years ago. I found the solution that time. The solution to this problem is kernel if I remember correctly. You have to find a suitable kernel. When you find a suitable kernel for sm-n900k you can use many custom rooms.
Another thing is;
You have to install a custom rom then before starting the phone, flash suitable kernel and the you are good to go.
I hope this information helps you.