Hello developers,
I found the exact same problem posted on xda developers fourm but none of the posts were answered completely or solved.
I rooted my Sm n900 without any problems, installed CWM recovery, installed SuperSu and installed VN Rom for galaxy note 3 (referred this from some Chinese guy on web (since i cant post third party links) its galaxynote3root dot com.
At first i didnt check efs backup option and installed VN rom without any problems (no imei loss or baseband unknown) on my own phone.
But when rooted one of my friends SM n900 with exact same method as i did earlier (but i checked create efs backup this time), i got screwed.
I tried EFS professional, but when i try to put his phone in RMNET + DM + MODEM by pressing *#0808#, and run efs software, and click either qualcommn or efs professional button, it doesnt recognise the device and says not connected.
I tried various other options as well such as rerooting, reinstalling the rom, reinstalling OEM rom, and other roms as well. Every thing is fin except IMEI and baseband null/unknown.
I had a problem like that. On my note 2 .i flashed patition file in odin and it was fixed.
bonebeatz1234 said:
I had a problem like that. On my note 2 .i flashed patition file in odin and it was fixed.
Click to expand...
Click to collapse
Which partition? EFS? Problem is, now i dont have any backups of EFS partition or folder. I am trying to flash modem via odin from phone mode. After that i will have tried everything and will be stuck with a bricked cell forever
rabinpro said:
Which partition? EFS? Problem is, now i dont have any backups of EFS partition or folder. I am trying to flash modem via odin from phone mode. After that i will have tried everything and will be stuck with a bricked cell forever
Click to expand...
Click to collapse
you should bring to the service center to record the IMEI number.
root your device and flash xxuene1 modem from recovery.
Modem is available on xda..search
I did the same and it worked for me
Not worked
Related
hello Guys, i have a galaxy note 3 sm-n900 on my hand right now, the problem is that i have no data, unknown baseband and no imei (Null/Null)......is there any solution ??? thank you...
In normal case all this missing comes from factory, if you need help from others you must explain how this happened, what rom you are using etc etc
Sent from my SM-N9005 using XDA Free mobile app
Byakuya88 said:
hello Guys, i have a galaxy note 3 sm-n900 on my hand right now, the problem is that i have no data, unknown baseband and no imei (Null/Null)......is there any solution ??? thank you...
Click to expand...
Click to collapse
Flash a Stock N900 ROM and hope for the best.
nicholaschum said:
Flash a Stock N900 ROM and hope for the best.
Click to expand...
Click to collapse
thank you for your answer, i flashed the last 4.4.2 firmware but it's the same thing.....
Byakuya88 said:
thank you for your answer, i flashed the last 4.4.2 firmware but it's the same thing.....
Click to expand...
Click to collapse
May be your imei data was corrupt.
Did you make backup for the EFS data?
If so just restore it.
i have the same issue with a friends phone, no EFS backup, he won't tell what he did to the phone but now imei is null/null and doesn't have a baseband, anyway to fix it?
jdomadia said:
In normal case all this missing comes from factory, if you need help from others you must explain how this happened, what rom you are using etc etc
Sent from my SM-N9005 using XDA Free mobile app
Click to expand...
Click to collapse
similar problem
I have a sm-n900 exynos and I have lost my imei and baseband during a Samsung flash. I have a TWRP backup, efs.img backup by dr.ketan's backup tool but nothing is able to restore my efs. I have scanned emmc blocks for bricked blocks and all blocks come back as non-corrupted. may be the partition is corrupted .how do I erase my efs partition to rebuild it. I have tired to flash PIT from ODIN but that too doesn't work.
tried this post http://forum.xda-developers.com/showthread.php?t=2567133&page=36
but need a guide to identify the partitions and how to rebuild them. by any chance anyone know if I could extract twrp backup to files to restore efs or from efs.img so I can use the nv_data.bin, since tried restoring the backups and it didn't restore I feel the partition might be corrupt and hence not being re-written. so might be I have to rebuild the partitions by formatting as explained in this thread. but I don't know exactly the steps for exynos variant. I tried using terminal on twrp but mkef2 command shows mmbcblkp03 doesn't exist which as I have read in posts is the efs partition on this phone and reboots to twrp recovery. and mmbcblkp12 show filesystem too small and reboots to twrp recovery
weird thing is, i sometimes find the imei and the baseband and sometimes i dont, phone's not rooted yet, trying to find a way to root it without trippong knox since is not mine, but maybe im able to recover the efs i hope it works
Same problem here...
Hey guys, I'm experiencing the same problem since i installed VN kit kat rom. I searched for the efs backup and i found it but when i use odin to flash it it doesn't work. I tried flashing back to stock but that doesn't work. Can soneone please help me?
Fixed it!!!
If you have a n900 and your imei is null and your baseband is unknown all you have to do is to flash the file beneath with cwm recovery and voila!
You don't have me to thank, DaOldMan/Thomas deserves all the credit!
V-dude said:
If you have a n900 and your imei is null and your baseband is unknown all you have to do is to flash the file beneath with cwm recovery and voila!
You don't have me to thank, DaOldMan/Thomas deserves all the credit!
Click to expand...
Click to collapse
You save my life dude! Thanks alot man!
You're welcome dude! I had the same problem too so i know how you feel
Btw DaOldMan (or Thomas) is the one you need to thank...
V-dude said:
If you have a n900 and your imei is null and your baseband is unknown all you have to do is to flash the file beneath with cwm recovery and voila!
You don't have me to thank, DaOldMan/Thomas deserves all the credit!
Click to expand...
Click to collapse
Thanks Man!!!!This file saved my day!!!cheers!!!!![emoji106] [emoji106] [emoji106] [emoji106] [emoji106]
You're wlecome :good:
V-dude said:
If you have a n900 and your imei is null and your baseband is unknown all you have to do is to flash the file beneath with cwm recovery and voila!
You don't have me to thank, DaOldMan/Thomas deserves all the credit!
Click to expand...
Click to collapse
HI just one question my friend has the exact same problem (IMEI null/null) baseband is unkown !!! the device is SM-N900 running 4.4.2 right now he flashed the file but the problem still exist !!! pleeeeeeeeease help !!
this file only works if the device is running official 4.3 ??? or we can flash it on stock 4.4.2 !!!
it seems wiered to me that others on this forum flashed the file and it worked with them !!!!!
pleeeeeeease help
You can still flash it if you have 4.4.2. The file i uploaded to be flashed is just to flash the baseband not the rom itself.
Btw did you flash the file with cwm recovery?
V-dude said:
You can still flash it if you have 4.4.2. The file i uploaded to be flashed is just to flash the baseband not the rom itself.
Btw did you flash the file with cwm recovery?
Click to expand...
Click to collapse
Thanks man for the reply
anyway !! yes of course we flashed the file with CWM recovery tha recovery that we used is ( n900-cwm-recovery-6.0.4.7-kk(0125) )
we flashed it 2 times but nothing !! after flashing the baseband stays unkown and IMEI (null/null)
just one thing that the system is 4.4.2 rooted is that a problem ? should we flash the official stock 4.4.2 and then flash the file ?!!
we'v tried to wipe factory data/cash partion/ delvic cash then flashed the file still nothing !!
please help my friend is going crazy !!!
V-dude said:
If you have a n900 and your imei is null and your baseband is unknown all you have to do is to flash the file beneath with cwm recovery and voila!
You don't have me to thank, DaOldMan/Thomas deserves all the credit!
Click to expand...
Click to collapse
its work, thanks a lot dude : good::laugh:
ghassano015 said:
Thanks man for the reply
anyway !! yes of course we flashed the file with CWM recovery tha recovery that we used is ( n900-cwm-recovery-6.0.4.7-kk(0125) )
we flashed it 2 times but nothing !! after flashing the baseband stays unkown and IMEI (null/null)
just one thing that the system is 4.4.2 rooted is that a problem ? should we flash the official stock 4.4.2 and then flash the file ?!!
we'v tried to wipe factory data/cash partion/ delvic cash then flashed the file still nothing !!
please help my friend is going crazy !!!
Click to expand...
Click to collapse
That s due to a modem you update so go back to original modem. ..
Ohw ok.... When i flashed the file my sim card got the read the first time i restarted my phone. I don't get why it doesn't work for your friend. What you can try to do is to download (google) other basebands for n900 and try to see if those work (it doesn't necessarily have to be 4.4.2 cuz i flashed the same 4.3 file on my 4.4.2 phone and it worked). If that doesn't work you can try to flash a stock rom and then flash a baseband ( while still in recovery mode), try the one i uploaded. just be sure to have a backup of the current rom if the stock one doesn't seem to be solution.
Maybe start with these :
http://forum.xda-developers.com/showthread.php?t=2475714
i didn't have an imei on my i9500 for some reason so i flashed a leaked 5.0.1 rom on my i9500 which fixed my imei issue. everything was working (calls etc). since you can't flash gapps on this rom for some reason i switched back to a stock rom and saw that my imei and baseband version were gone again. after some digging i found out that this was an efs file issue, so after (literally) 16 hours i finally fixed it by flashing the 5.0.1 leak with philz touch, backing up my efs file, and flashing a custom rom (hassan rom v7) and my imei appeared again. i wanted to go back to stock 4.4.2 touchwiz so i tried to flash it again but it gave me a fail. and when i tried again it succeeded but my imei was gone again after some more digging a found out that the 5.0.1 was a chinese rom and changed my model name to i9500chn, and they imei worked only when that was my model name.
so now i'm kinda stuck on hassan rom and my phones model is i9500chn. even though i backup my efs folder successfully, if i flash another rom that changes my phone to i9500 it removes my imei and the efs backups won't help (restore is successful but doesn't work).
what can i do in this situation??
PLEASE XDA PEOPLE HELP ME.
anyone???????
please?!
Wasn't there a tool to backup IMEI number? I remember there was something similar for the Galaxy Ace.
GDReaper said:
Wasn't there a tool to backup IMEI number? I remember there was something similar for the Galaxy Ace.
Click to expand...
Click to collapse
i do backup my imei but restore doesn't work.
maximusprimus said:
i didn't have an imei on my i9500 for some reason so i flashed a leaked 5.0.1 rom on my i9500 which fixed my imei issue. everything was working (calls etc). since you can't flash gapps on this rom for some reason i switched back to a stock rom and saw that my imei and baseband version were gone again. after some digging i found out that this was an efs file issue, so after (literally) 16 hours i finally fixed it by flashing the 5.0.1 leak with philz touch, backing up my efs file, and flashing a custom rom (hassan rom v7) and my imei appeared again. i wanted to go back to stock 4.4.2 touchwiz so i tried to flash it again but it gave me a fail. and when i tried again it succeeded but my imei was gone again after some more digging a found out that the 5.0.1 was a chinese rom and changed my model name to i9500chn, and they imei worked only when that was my model name.
so now i'm kinda stuck on hassan rom and my phones model is i9500chn. even though i backup my efs folder successfully, if i flash another rom that changes my phone to i9500 it removes my imei and the efs backups won't help (restore is successful but doesn't work).
what can i do in this situation??
PLEASE XDA PEOPLE HELP ME.
Click to expand...
Click to collapse
hi mate
Is hard to tell what went wrong ... what i would first of all is trying to go back a a normal stock (not leaked) but not sure if there will be any problem from going back to 4.4.2 from 5.0.1
Check here
http://forum.xda-developers.com/showthread.php?t=2265477
First thing i would do is trying to get rid of the chinese PIT from the leaked rom , what is the size of your internal SDm non chinese are around 8-9 gb , try to flash a stock rom (4.4.2) with a PIT file shown in thread , the second one
File Type: zip I9500_pit file.zip - [Click for QR Code] (1.0 KB, 22777 views)
READ FIRST, BACKUP and then proceed
Once you are back in stock ...you can start over
Hello Fellas, am posting here as I haven't found help elsewhere. Kindly Respond to my woes. I have a rooted Galaxy Note 3 N900 running official Lollipop with IMEI Null/Null and No Baseband version. The IMEI just disappeared totally out of the blue as no custom ROM has been flashed on the device!! This has happened 2 months after updating from 4.3 Jelly bean. With no prior EFS Backup here's what I have tried:
1. EFS Professional (backup&restore complete but no luck)
2. EFS Restore express ( backup.bat>Odin restore)
3. GSII Repair tool
After hitting no luck with the above tools and without any "/EFS mount errors" in recovery either and WIFI working fine, I came to a conclusion that most probably the EFS folder partition on my Note 3 is still intact and most probably this could be a case of a bad modem which would explain the loss of Baseband Version and thus the Null IMEI. So I tried flashing back to KitKat with N900XXUENG1 firmware and separately flashed a few modems compatible with Samsung's new EFS System: N900XXUENG1_MODEM, N900_XXUENF2_MODEM_CWM and also gave a shot at recommended N900_XXUENE1_MODEM_CWM.ZIP which seems to restore baseband for many users with this issue but this failed as well. After much searching I found a 4file_N900XXUGBNL8 Lollipop Firmware with PIT from Dev-Host, flashed all files in Odin&even repartitioned the device but still no baseband!!! WIFI&everything else runs smooth except the damn baseband/Null IMEI! Almost Exhausted my options...
Now I trust we have some informed members and developers here, NEED YOUR VALUABLE IDEAS HERE mates! Someone, anyone.....Thanks!
Have got any guarantee of the device?If so,send it to service ıf your guarantee continiues.
If you bought the device from another country,This may occur ıf you didn't register it.(In my country this is how it works.Turkey)
Or someone cloned your imei,check your imei ıf it is valid.
This is not because you upgraded your device to android 5.
If ıt was the case,you would have already faced the problem after just the flash.
I would say flash another modem
But,You say you tried flashing other modems.So no luck with that.
I had seen s3 with the same problem.I had flashed a modded modem.
It worked.I dont know if there is one for your device.
Briefly this is an imei/modem problem.
I don't know ıf the suggestions above help you.
I hope so.
Good luck.
try flashing stock rom from sammobile via odin. you need to backup efs folder everytime you flash a new rom, that's my opinion. may be wrong.
I think I used to had this problem with my Note 2 as well. If you come from 4.3 you should flash stock ROM Jelly bean 4.3 from Sammobile or Samsung-updates website. Then flash lollipop 5.0 over 4.3 when you can see your IMIE. Maybe it will work.
So. If u in L bootloader. U must! Flash the L modem that sometimes didnt get flashed by the odin while flashing stock rom. So just extract the modem.img and things for modem. Then just flash it using dd command or make flashable zip. Then it works fine. I have it on s4 exynos. That if i in L bootloader then even i install kitkat rom with L bootloader. U must still flash the L modem. K. Hope it works
1. İf you couldnt recover with efs professional , probably you've been lost your original imei files like nv_data.bin etc. and there is no backup...
2. So try to remake this kind of files with-again- with efs professional. But there is not so much info about this "creation" process.
3. I had the same situation. . . . And i'm still sorry. . . ( . . . The other solution is JTAG, more easy, cheaper in total and psychologicaly healty !!!)
GOOD LUCK....
m6112 said:
1. İf you couldnt recover with efs professional , probably you've been lost your original imei files like nv_data.bin etc. and there is no backup...
2. So try to remake this kind of files with-again- with efs professional. But there is not so much info about this "creation" process.
3. I had the same situation. . . . And i'm still sorry. . . ( . . . The other solution is JTAG, more easy, cheaper in total and psychologicaly healty !!!)
GOOD LUCK....
Click to expand...
Click to collapse
All EFS folder files are present including nv_data.bak&.bin Am a bit reserved to go the JTAG way just yet.
white7561 said:
So. If u in L bootloader. U must! Flash the L modem that sometimes didnt get flashed by the odin while flashing stock rom. So just extract the modem.img and things for modem. Then just flash it using dd command or make flashable zip. Then it works fine. I have it on s4 exynos. That if i in L bootloader then even i install kitkat rom with L bootloader. U must still flash the L modem. K. Hope it works
Click to expand...
Click to collapse
Thanks for that but as I already said I was lucky to find a 4file partitioned Lollipop ROM with separate modem. Flashed that through Odin and even repartitioned the device but that hit a rock as well!
longcoming said:
Have got any guarantee of the device?If so,send it to service ıf your guarantee continiues.
If you bought the device from another country,This may occur ıf you didn't register it.(In my country this is how it works.Turkey)
Or someone cloned your imei,check your imei ıf it is valid.
This is not because you upgraded your device to android 5.
If ıt was the case,you would have already faced the problem after just the flash.
I would say flash another modem
But,You say you tried flashing other modems.So no luck with that.
I had seen s3 with the same problem.I had flashed a modded modem.
It worked.I dont know if there is one for your device.
Briefly this is an imei/modem problem.
I don't know ıf the suggestions above help you.
I hope so.
Good luck.
Click to expand...
Click to collapse
It's an old device, no warrants. Am indeed looking at the possibility of someone else allocating the IMEI to their device, though i doubt. But if that was the case shouldn't the Baseband at least be present?
Did you try downgrading to 4.3 with official stock files?
If not,give it a shot.
Droidsan said:
It's an old device, no warrants. Am indeed looking at the possibility of someone else allocating the IMEI to their device, though i doubt. But if that was the case shouldn't the Baseband at least be present?
Click to expand...
Click to collapse
I have explained it earlier, Actually it is kernel. Newer kernel makes some changes on EFS partition and that changes can not be read by old kernel but in this case once you flash newer modem it will be solved. If your issue doesn't solved by flashing latest stock ROM then only possibility is messed up EFS partition and for that you must have a backup which was created when your device was normal. If your EFS partition is corrupted and you don't have backup then i think only option you have is to go to service station they can repair it easily. Though your device is not under warranty but you have official bill then still they can do it with paid service. Now a days samsung have changed policy and restoring IMEI they needs to do it online with samsung server (this information I got from service center owner in my city who is my friend and he did same for one of my friend)
UPDATE:
dr.ketan said:
I have explained it earlier, Actually it is kernel. Newer kernel makes some changes on EFS partition and that changes can not be read by old kernel but in this case once you flash newer modem it will be solved. If your issue doesn't solved by flashing latest stock ROM then only possibility is messed up EFS partition and for that you must have a backup which was created when your device was normal. If your EFS partition is corrupted and you don't have backup then i think only option you have is to go to service station they can repair it easily. Though your device is not under warranty but you have official bill then still they can do it with paid service. Now a days samsung have changed policy and restoring IMEI they needs to do it online with samsung server (this information I got from service center owner in my city who is my friend and he did same for one of my friend)
Click to expand...
Click to collapse
Thank you Dr.Ketan for that information. You have been a great help to many. I have followed your posts about this issue and I feel there is still hope.
UPDATE:
I WAS ABLE TO RESTORE THE BASEBAND AND NOW THE IMEI IS GENERIC, READS 004999010640000. [/B] I was able to restore nv_data backup from /Efs folder and deleting bad nv_data. Here's what I did:
Using root Explorer in /EFS:
Deleted corrupt files;
nv_data.bin ( 18 April 2015)
nv_data.bin.md5 (18 April 2015)
Renamed backup files (dated 31 Jan 2015) to apply;
.nv_data.bak > nv_data.bin
.nv_data.bak.md5 > nv_data.bin.md5
Using ADB shell:
Code:
adb shell
su
umount /efs
mke2fs /dev/block/mmcblk0p3
mount -w -t ext4 /dev/block/mmcblk0p3 /efs
Reboot
However, the baseband and generic IMEI come&go across reboots and seems not to stick permanently. Any possible steps from here???
NOTE: Previously I have been able to restore Unknown Baseband and Null IMEI in Galaxy S2 i9100 using the above adb method (Code Only) http://www.selftechgenius.com/?p=284
NOTE: Previously I have been able to restore Unknown Baseband and Null IMEI in Galaxy S2 i9100 using the above adb method (Code Only) http://www.selftechgenius.com/?p=284
Try this out
I always have that problem when I downgrade to jellybean but solving it is easy. Just flash THIS modem file under the AP option Odin. Tell me if it works.
Muthumbi said:
I always have that problem when I downgrade to jellybean but solving it is easy. Just flash THIS modem file under the AP option in odin mode. Tell me if it works.
Click to expand...
Click to collapse
If flashing modem via Odin you MUST turn off the phone then start it in DL mode. Simply doing a 'reboot' into DL mode will not let the modem be flashed.
Hi
it's my dad's phone and has been dead for a while now...
I have an I9500 and after upgrading to a new version (stock on the air upgrade done by my dad) it shows IMEI null and no sim card detected.
I tried these steps:
1) root, philz recovery
2) install latest modem
3) restore EFS (dont have a working backup so didnt help)
4) back to stock rom as recommended here by some folks.
5) edited the efs file (a bad efs with null imei) using HexEditor and wrote my IMEI on 0x800000 address.
6) flashed cm
nothing works!
plz help!
Your phone IMEI is listed under the battery in the phone. But I'm not sure how you re-enter it.
I lost my IMEI when I was on a custom rom 5.1.0, got it back by flashing 4.4.4 stock via ODIN
My phone is an I9505
Take the phone to Samsung and have them fix it, as you've done everything you could to resolve the problem yourself. After all, if their OTA update did screw the phone up, they should be responsible for fixing it.
Hello,
one week ago install a custom rom miui and wifi can´t enable, people recomend install BL_G900FXXU1ANE2.tar , CP_G900FXXU1ANE2.tar by odin, i install but i have another problems with miui and try other custom rom with mashtmallow, aparently all works fine 3 or 4 days, but... today i lost signal , if i check my serial imei show unknown and I DON´T HAVE EFS COPY.
Folder efs exist with a lot of files and folders, but i supose anything is corrupted because don´t work
I have try to download in samfiwmware G900FXXS1CPH2_G900FATL1CPF1_ATL.zip, flash with odin restart but... only can see samsung all time (more 30 minuts),
I remember one month ago I have a backup with recovery clockworkmod, recover and now mobile restart but the same... imei unknown.
Any idea to recover my samsung ??
id try another tar from sammobile.com/firmwares
youdoofus said:
id try another tar from sammobile.com/firmwares
Click to expand...
Click to collapse
I download 4.4.2 in sammobile, this rom can configure wizard not hangs with samsung logo but... when i finish the same i don´t have imei.
I don´t know if erase folder efs and hope when i install sammobile rom create automaticly ??
thanks for your help
darkons2001 said:
I download 4.4.2 in sammobile, this rom can configure wizard not hangs with samsung logo but... when i finish the same i don´t have imei.
I don´t know if erase folder efs and hope when i install sammobile rom create automaticly ??
thanks for your help
Click to expand...
Click to collapse
well, heres some stuff about this exact topic on the S4. It says that if youre 100% sure that the efs is borked, then delete the folder and itll put you into permanent safe mode, but then gives instructions on how to exit permanent safe mode
http://forum.xda-developers.com/showthread.php?t=2392632