Develop Bugs

unknown Baseband issue :( plz help..

Well, from the day one i bought my nexus i had the " unknown baseband " in the About screen of my GSM unlocked NEXUS ! ... I dunno how but i left my phone with sim card inserted for some hours and suddenly i noticed that i have a signal and i checked to see the baseband is identified as xxkk6. Now i downloaded the Factory image from google and i flashed it using the Nexus Toolbox and now i dont have any baseband again.
Tried to flash the baseband only again with no luck, It only shows in the fastboot mode but when the phone is in android mode or ( normal mod ) it shows as unknown!
Tried to flash the UGLA4 baseband and the problem persists!
What should i do now ???

Try to flash back to google stock rom via Galaxy Nexus Toolkit from mskip :
http://forum.xda-developers.com/showthread.php?t=1392310
Download google stock image here :
http://code.google.com/android/nexus/images.html
Then, using GNex Toolkit again to root, unlock bootloader, etc and flash any baseband from this thread below to test :
http://forum.xda-developers.com/showthread.php?t=1405345

i already did that and still not working!

I tried flashing the stock rom over and over , ulnocked , rooted and flashed the baseband file alone and nothing works!
i tried to flash ugla4 and xxkk6 basebands but both didn't work and i only can see them in the fastboot mode info

If you can't seem to get it to work, try returning it to the vendor.
As last resort you can try with ODIN it might work...

code777 said:
If you can't seem to get it to work, try returning it to the vendor.
As last resort you can try with ODIN it might work...
Click to expand...
Click to collapse
I can't return it as i bought it with no warranty from an online store in my country ...
Ok, how can i use odin to restore it ! i mean i need a pit file and the other files right? where can i get them from ?
another thing, do i find the files if i extracted the factory image
thank you!

Install cwm and flash the baseband from there. Should work. Search cwm touch in the forum.
Sent from my Galaxy Nexus using xda premium

M7amad90 said:
I can't return it as i bought it with no warranty from an online store in my country ...
Ok, how can i use odin to restore it ! i mean i need a pit file and the other files right? where can i get them from ?
another thing, do i find the files if i extracted the factory image
thank you!
Click to expand...
Click to collapse
That doesn't mean it has no warranty contact your country Samsung warranty service and explain the situation it must have warranty!

I tried flashing it with CWM and nothing seems to work !
Am i the only one who has this problem ? is it hardware related or what because as i said it was working before and i was able to make and receive calls and data ..
It wasn't workning when i first turned on the phone when i bought it but i was playing around with the setting and apps and i remember having an OTA update from 4.0.1 to 4.0.2 and after 2 or 3 hours it started to work ! just like that !
btw i flashed the old 4.0.1 (ITL41F) factory image and i updated OTA now to 4.0.2 ICL53F but still unknown baseband

are you using a custom rom on the phone?
if you are...you may have installed a rom for the LTE/CDMA phone and not for your GSM phone..
that is why my baseband said UNKNOWN......I had a LTE and I install a GSM rom by mistake...
try installing a custom GSM rom

M7amad90 said:
I tried flashing it with CWM and nothing seems to work !
Am i the only one who has this problem ? is it hardware related or what because as i said it was working before and i was able to make and receive calls and data ..
It wasn't workning when i first turned on the phone when i bought it but i was playing around with the setting and apps and i remember having an OTA update from 4.0.1 to 4.0.2 and after 2 or 3 hours it started to work ! just like that !
btw i flashed the old 4.0.1 (ITL41F) factory image and i updated OTA now to 4.0.2 ICL53F but still unknown baseband
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1398296
here there is a similar thread...somene talk about a corrupted efs partition (try to search something about it), someone just flashed a new radio and solved it
did you also tried to power off the phone and pull the battery for a while? it is a sort of software reset..may work sometimes..

Sounds like your EFS may be corrupted.
There is an app for the I9100 that can repair corrupted EFS's, and it can be done via adb as well, but I'm not sure about the applicability towards the GNex.
Just for reference, I am in no way suggesting you do this, but perhaps someone else can chime in: http://forum.xda-developers.com/showpost.php?p=17587351&postcount=1

hogowner said:
are you using a custom rom on the phone?
if you are...you may have installed a rom for the LTE/CDMA phone and not for your GSM phone..
that is why my baseband said UNKNOWN......I had a LTE and I install a GSM rom by mistake...
try installing a custom GSM rom
Click to expand...
Click to collapse
i am using a gsm factory room and and my nexus is GSM Nexus !
Ok could you please tell me what is the best stable room for GSM Gnex cause there are a lot of them !

M7amad90 said:
i am using a gsm factory room and and my nexus is GSM Nexus !
Ok could you please tell me what is the best stable room for GSM Gnex cause there are a lot of them !
Click to expand...
Click to collapse
I may have jumped the gun a bit, with the i9100 an unknown baseband typically meant a corrupted efs. Do you still have signal and an imei #?
Sent from my Galaxy Nexus using xda premium

Ok i just checked my imei by *#06# and it shows nothing too !!! no numbers at all !! does it mean the it is efs corrupted partition ???

M7amad90 said:
Ok i just checked my imei by *#06# and it shows nothing too !!! no numbers at all !! does it mean the it is efs corrupted partition ???
Click to expand...
Click to collapse
Likely, but again I haven't messed around with the EFS on the GNex yet. Hopefully someone with more knowledge can chime in and get you sorted out.

mudferret said:
I may have jumped the gun a bit, with the i9100 an unknown baseband typically meant a corrupted efs. Do you still have signal and an imei #?
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Btw i didn't back up anything and i don't know how to fix the EFS thing but i know how to use odin and adb a little bit

i have this issue suddenly with the radio of 4.0.2 and fixed it by flashing 4.0.1 radio.

never mind .. i got another Gnex and everything is fine now !!! u can't fix it but in samsung service centers

imei null/null fix for i317m ?

hello, my imei is null/null and samsung kies doesn't detect my phone ( i cant update the frimware with kies...)
i saw that we can fix this probleme with a custome rom or somthing like this but i did flash it with this rom the issue still the same http://forum.xda-developers.com/showthread.php?t=2016575
can anybody post for me a working link for a rom that can fix my problem or give me a working solution
thank you all

and no i dont have an efs backup because it was sold for me like that ...

Check HERE for help with your issue!
Hope it helps you
http://forum.xda-developers.com/showthread.php?t=1264021
Sent from my SAMSUNG-SGH-I317 using Tapatalk

thanks but i cant find the nv_data.bin file in the efs folder

soprano1993 said:
thanks but i cant find the nv_data.bin file in the efs folder
Click to expand...
Click to collapse
@Bajanman sorry but that guide is useless for the LTE Note 2 variants. Look for guides from the LTE Note 2 or the North American SGS3 as your main starting points to try and solve this. (My T889V LTE guide has some links to those.)
One method I'd like to hear reports about is the reboot nvrestore one, I've seen it discussed mostly on a Verizon SGS3 thread, but nothing IMHO says it wouldn't be relevant for the HSPA/LTE versions either.
Edit: The EFS and other related partitions are of a significantly different layout between the dual-core SGS3 and the LTE Note 2 or GT-I9305. adb reboot nvrestore doesn't seem to do anything on our devices.
Good luck,
Darkshado

hey i didn't find anything...i've heard that there's some custom roms that contains EFs backup that can solve my problem is this true ? if so can anybody give me a link for one of those roms ? thank you

Try to flash with odin the stock rom that you got your note 2 with. It happened to me once where i flashed something and lost my imei. I didnt backup or anything. After i flashed the stock and unrooted my phone my imei reappeared and my phone worked again. BTW it was a att note 2. I found the rom somewhere at this forum. No rom contain you Efs i think(could be wrong) but each phone has it own imei.
soprano1993 said:
hey i didn't find anything...i've heard that there's some custom roms that contains EFs backup that can solve my problem is this true ? if so can anybody give me a link for one of those roms ? thank you
Click to expand...
Click to collapse

soprano1993 said:
hello, my imei is null/null and samsung kies doesn't detect my phone ( i cant update the frimware with kies...)
i saw that we can fix this probleme with a custome rom or somthing like this but i did flash it with this rom the issue still the same http://forum.xda-developers.com/showthread.php?t=2016575
can anybody post for me a working link for a rom that can fix my problem or give me a working solution
thank you all
Click to expand...
Click to collapse
Flash Rogers rooted rom from link below.
http://forum.xda-developers.com/showthread.php?t=2004650
Or if that fails try method below
http://forum.xda-developers.com/showthread.php?t=2261153

ok thank you bro i will test and tell you if somthing wrong happens

i cant connect to kies with my phone ... and the stock rom didn't change anuthing...still imei null/null and base band is unknown

The method doesn't always work ...
And you may be facing a damaged device needing a repair service...
However ...it is worth a repeated try ...g
Sent from my SAMSUNG-SGH-I317 using XDA Premium 4 mobile app

IMEI number is zeros

i flashed the egypt tom to my grand after that the IMEI number is zeros and i cant mack calls or sms or anything
plzzzzzz help

the solution my friend is having somewhere saved in a backup the EFS folder, but you NEED TO find some tutorial on how to get that file or the folder as you have damaged IMEI The IMEI is in that folder, EFS ... system that is ... but I can not help and forgive my English

simonshuf said:
i flashed the egypt tom to my grand after that the IMEI number is zeros and i cant mack calls or sms or anything
plzzzzzz help
Click to expand...
Click to collapse
This basically means you have corrupted the EFS partition of your phone. This can only be fixed in two ways:
1. Like @johntheredimid mentioned, you need to restore the backup (if you took a backup) of your EFS partition before it was corrupted. The method for restore can be found here - http://forum.xda-developers.com/showthread.php?t=2420902
2. If you didn't take a backup, you need to take your phone to a service center and ask them to fix it for you. Would probably have to have your board replaced. So you should install your country's firmware and unroot properly before taking it there. Unrooting methods can be found in the general section.

Looks like this problem is widespread
Sent from my GT-I9505 using xda premium

simonshuf said:
i flashed the egypt tom to my grand after that the IMEI number is zeros and i cant mack calls or sms or anything
plzzzzzz help
Click to expand...
Click to collapse
have the same problem and install android 4.1.2 the IEMI come back and i install new update for android 4.2.2 for other country version and the mobile come back

shehabmedhat said:
have the same problem and install android 4.1.2 the IEMI come back and i install new update for android 4.2.2 for other country version and the mobile come back
Click to expand...
Click to collapse
so u flashed older firmwares via Odin.... to get back IMEI :good:
will u please tell which firmware version you have installed for android 4.1.2
as there are many firmwares available .....or else please provide a sammobile link

N7105 factory mode

Hi guys, i seriously need help here. Please refer to attached screenshot.
I came here after flashing sokp 4.2.2 rom, and it prompted me an error saying encryption was unsuccessful. After which, i wasnt able to use my phone since then.
I tried to flash stock rom, and I end up with this. Please dont tell me to search the forums because Ive been to them countless times. I suppose this is a efs issue, because baseband and imei are unknown and I do not have a backup for it. Tried with the writing tool for imei, doesnt work as well.
Pls ask me for any info u might need/i missed out to help with this issue.

I think it's in the efs folder, you have to use a root browser and edit factory mode to off instead of on. It's been a long time since I saw factory mode so I'm not 100%
Sent from my GT-N7105 using Tapatalk

sawdoctor said:
I think it's in the efs folder, you have to use a root browser and edit factory mode to off instead of on. It's been a long time since I saw factory mode so I'm not 100%
Sent from my GT-N7105 using Tapatalk
Click to expand...
Click to collapse
Thanks for your reply. But even if I off factory mode, will the baseband and imei be unknown?

I'm not sure but if it doesn't the 2 things that might be worth trying are, emergency firmware recovery with kies or mskips toolkit has a rescue package but I think you have to go to skipsoft.net now as the thread was closed
Sent from my GT-N7105 using Tapatalk

It's current value is "OFF"...u have to write "ON"...i know it sounds weird but that is the value. Amd if u don't have any previous back up of EFS then there's nothing u can do at home to bring it back. Same thing happened to mine and i got it repaired from a local shop for cheap...they used z3x box...the problem is my IMEI is correct and network works fine...but everytime i flash a ROM i have to take it to the shop and get the modem patched or else it doesn't connect to network. So go to Samsung service centre and get it fixed by them...they'll charge u more but their fix is permanent.
Sent from my GT-N7100 using XDA Free mobile app

Alright, it seems like i have a backup of the efs, bt the nv_data.bin file is not included, and i read on other threads that this file is responsible for the imei and all? This backup is dated in aug2013, but it doesnt help in restoring my phone because the efs pro software doesnt see this as a backup file. Im actually looking for one of the thread that actually taught how to edit the nv_data.bin file, but no luck till date.

This thread might help
http://forum.xda-developers.com/showthread.php?t=1946915
[WARNING! + GUIDE] Backup and Restore IMEI / NV Data Procedure for GT-I9305. There is another post in this thread where they flashed the param.bin file
Check out the last post in this thread
http://forum.xda-developers.com/showthread.php?t=2724169
[Q]Null Imei, Baseband Unknown N7105
Sent from my GT-N7105 using Tapatalk

is it safe to flash the file that is intended for i9300? i dare not do that in case it doesnt work coz is different models.

ok my phone's all fixed up now. If anyone is interested to know, samsung kies original firmware helped.

[NEED HELP] I Need HTC M9 EFS BACKUP on Marshmallow

Hi to all i decided today to flash my device with RUU.exe finally i flashed but i broke my EFS partition... device can't find my Wi-Fi and IMEI is empty i can write IMEI but i think Wi-Fi and other stuff wont be solved ( also baseband is unknown ) i think i can repair my EFS with a working efs partition can anyone send me a efs backup on private message for security dont worry if you not living on turkey because i can't use your imei and i swear i'll change the backup's imei thanks to everyone
sorry for bad english with my best regards....

Jaqen Hghar said:
Hi to all i decided today to flash my device with RUU.exe finally i flashed but i broke my EFS partition... device can't find my Wi-Fi and IMEI is empty i can write IMEI but i think Wi-Fi and other stuff wont be solved ( also baseband is unknown ) i think i can repair my EFS with a working efs partition can anyone send me a efs backup on private message for security dont worry if you not living on turkey because i can't use your imei and i swear i'll change the backup's imei thanks to everyone
sorry for bad english with my best regards....
Click to expand...
Click to collapse
Hi, I'm in the same situation, I'm from Argentina. I would need a copy of the efs folder and I would change the imei to my own! I hope someone helps me! thank you very much!

morna said:
Hi, I'm in the same situation, I'm from Argentina. I would need a copy of the efs folder and I would change the imei to my own! I hope someone helps me! thank you very much!
Click to expand...
Click to collapse
No one helped me and i think no one wont help you either i dont have M9 now if i had i'll post a efs backup immediatelly

There is no efs partition on HTC phones. It only exists on Samsung phones.
You probably flashed a GSM RUU on a CDMA device or vice versa. Return to your original firmware and hope that you didn't damage the phone unrecoverably since the partition layout isn't the same on those two variants.
Sent from my HTC One M9 using XDA Labs