Develop Bugs

[Help] Phone won't detect sim. Unknown Baseband and IMEI

So... I seem to be having the efs corruption issue with my co-worker's phone. I've been searching all over and have found how others have solved the problem, but it seems that our nv_data.bin is not located in our efs directory.
Does anyone have any idea where these files are? I need to check the last modified dates of their backup files to see if I can restore them >.<
Any help is greatly appreciated!!

Bump.. If anyone knows where these files are this could help us from running into the corrupt efs problem that many people have had. Usually backing up your efs prevents your phone from becoming unable to function as a phone.
I do remember reading something about our unlock code not being present in our nv_data.bin.. And when I check my efs folder in both my, as well as my co-worker's phone there is no nv_data.bin so maybe it has been relocated??
Anyone with knowledge on this subject.. your input would be greatly appreciated! I'm also gonna read over the unlock threads to see if there is any relevant info there.

I am having this problem now, I know you posted this over a month ago, but please tell me you know the location of the backup files or any other solution for this?'
Thank you,

[Q] T989 - Baseband and IMEI Unknown
I have searched and read many threads already. I understand the i9100 uses a file called nv_data.bin and requires its .bak file for a fix.
But, I dont think the t989 is the same because these files dont seem to exist, or at least not in the locations the threads for i9100 state. I am wondering if anyone has had this problem and/or how they fixed it. I know it was caused because of trying to unlock, but I'm looking for a solution.
Thanks!

just buy one of those $20 online unlock or go to your local phone kiosk to have it unlocked
any one with a machine to unlock Samsung phones can get this phone unlocked easily
there's no software unlock yet, as you have found on your searches

I have T-Mobile and don't really care for the unlock, it was a mistake. At this point, I just want to fix the unknown IMEI and unknown Baseband issue. Because of this problem my phone cannot get a signal... Will performing a machine unlock fix this problem?
Note: When I type in *#06# the response is not my IMEI number. It says "null"

svahora said:
I have T-Mobile and don't really care for the unlock, it was a mistake. At this point, I just want to fix the unknown IMEI and unknown Baseband issue. Because of this problem my phone cannot get a signal... Will performing a machine unlock fix this problem?
Note: When I type in *#06# the response is not my IMEI number. It says "null"
Click to expand...
Click to collapse
You can try to find someone locally with a SPT Box2. This unit can flash, unlock & repair IMEI on SGH-T989(d). I was gonna pick one up, but they are like $250 yikes !!

KillaHurtz said:
You can try to find someone locally with a SPT Box2. This unit can flash, unlock & repair IMEI on SGH-T989(d). I was gonna pick one up, but they are like $250 yikes !!
Click to expand...
Click to collapse
What does the (d) stand for?
And, how can I make sure this never happens again in the future? I know there are backup options out there (CWM, Nandroid), but are there any that make a complete clone of the phone's image? In case I mess up the efs or IMEI files again I can restore and be ok.
Thanks!

T989D = Canadian release of T989
they are identical, the just use the D for Canadian

AllGamer said:
T989D = Canadian release of T989
they are identical, the just use the D for Canadian
Click to expand...
Click to collapse
Would a Nandroid backup fix this in the future?

is hard to say, we have no idea where is the real IMEI information is being stored in the new models, but is no longer in the old EFS folder

AllGamer said:
is hard to say, we have no idea where is the real IMEI information is being stored in the new models, but is no longer in the old EFS folder
Click to expand...
Click to collapse
I wonder if the new Galaxy Nexus has its IMEI files stored similarly. If so, we can join forces with that forum group.

If Android is not mounting your firmware properly in the system this will cause no baseband and no imei detected. i would try and flash the stock rom to make sure.

-Mr. X- said:
If Android is not mounting your firmware properly in the system this will cause no baseband and no imei detected. i would try and flash the stock rom to make sure.
Click to expand...
Click to collapse
Did it twice, the stock rom, modem, and kernel.

The radio (modem firmware) might have got corrupted if somebody tried to flash international GS2 ROM or modem.
Try to flash only the Radio (KL1 is the latest for T-Mobile) via ODIN (use PDA slot).

cyberjam said:
The radio (modem firmware) might have got corrupted if somebody tried to flash international GS2 ROM or modem.
Try to flash only the Radio (KL1 is the latest for T-Mobile) via ODIN (use PDA slot).
Click to expand...
Click to collapse
Would the KL1 work any different than the older one? I tried ODINing the original one, and it didn't work and increased the count so I didn't try the KL1.

I just got my replacement phone yesterday for this same problem. Flashed the stock kernal, and also the modem just to be safe and nothing would fix it. From what I know its just a hardware issue, not software. I was chatting with samsung and t-mobile people about this trying all kinds of fixes to nothing left but hardware defect.

Need help to install custom rom

Dear Android experts in this huge & helpful forum
I have the big common problem related to EFS folder:crying:
When i received my note 2 (international) after my pervios mobile Galaxy S2 (which i have tried with it several roms without a problem), i wasn't aware about the EFS folder problem and IMEI and ..... so on.
After trying first rom without backing up my EFS, unfortunately i corrupt my IMEI and lost network and after 2 days search and trying nothing solve it until i went to private fix center which fixed it.
After the fix i make a backup the EFS with many backup tools on the forum and i was happy that i will be able try roms as i hope, but i found the truth was not :crying::crying:, every time i install any of the custom roms i keep have the (Out of service ) network problem.
The problem that i found that the IMEI number is right but serial number is 00000000, also the network name is right and signal is strength is displayed , but still (out of service).
I can fix the phone with only one way (install stock rom + Ariza patch) but when i use the same patch with the the custom rom it makes every thing unknown (IMEI,.......).
When i install the modem XXDME4 it solve the problem for unknown IMEI and unknowns but still the out of service problem :crying::crying:
Please anybody can help me in this bad problem?

Waiting your help please!

r u there guys? :crying:

So, if i reset flash counter and un-root the device but the IMEI still dynamic (as 0040056545) would they accept it??
I check from download mode that the counter is 0 and shows that the rom is official
Please Advice before the end of this year

Thanks for your support
Last support hope....if i backup the EFS after receive from Samsung service center, would i be able to install custom roms??

Thanks all for too much help, please remove the thread

[Q] Need help with Null Imei Please Please Please

Hello,
I have been unlocking for a while but have ran into issues lately with z3x and 4.3 on i747. Basically everyime i use 23x box something goes wrong last night it started with an extra number being inserted in the imei. Not knowing that ns pro will wreck your modem i tried it and now the imei is null and baseband is unknown. Any help would greatly be appreciated. There was alot i did not know about unlocking because i got into this with ns pro back when there was 0 problmes with anyhting below 4.3, but now 4.3 is killing me.
Here is what i have done
i have tried to rewrite imei mulitple times
i have tried qpst with a good know qcn fiel but it just error out. everytime
the problem
*#7284# shows up but wont allow me to switch between modem andpda
phone will not read in either z3x or ns pro
it would seem like tis not reading in qpst either as it wont allo me to restore any of the good know files
i just really want to be done with this and move on.
Another question i have is int he furute if i do a full nv backup with nv reader writer will this help at all. Like is said i am only having this problem ont he 747 and i have searched xda, ns pro, and z3x forums for an answer and i cant seem to find one. My next step is just to replace the baseband chip and be done, but that alot of work and i hate reballing any bga.
Thanks in Advance
Scott

scoeas1982 said:
Hello,
I have been unlocking for a while but have ran into issues lately with z3x and 4.3 on i747. Basically everyime i use 23x box something goes wrong last night it started with an extra number being inserted in the imei. Not knowing that ns pro will wreck your modem i tried it and now the imei is null and baseband is unknown. Any help would greatly be appreciated. There was alot i did not know about unlocking because i got into this with ns pro back when there was 0 problmes with anyhting below 4.3, but now 4.3 is killing me.
Here is what i have done
i have tried to rewrite imei mulitple times
i have tried qpst with a good know qcn fiel but it just error out. everytime
the problem
*#7284# shows up but wont allow me to switch between modem andpda
phone will not read in either z3x or ns pro
it would seem like tis not reading in qpst either as it wont allo me to restore any of the good know files
i just really want to be done with this and move on.
Another question i have is int he furute if i do a full nv backup with nv reader writer will this help at all. Like is said i am only having this problem ont he 747 and i have searched xda, ns pro, and z3x forums for an answer and i cant seem to find one. My next step is just to replace the baseband chip and be done, but that alot of work and i hate reballing any bga.
Thanks in Advance
Scott
Click to expand...
Click to collapse
NULL IMEI doesn't mean you've actually lost your IMEI
try take sim out, restart phone and then reinsert sim, and if that doesn't work, restart again with your sim inside
and also when you reinject imei(say whatever i said above doesn't work for you), make sure under developer option, usb debugging is on!

scoeas1982 said:
Hello,
I have been unlocking for a while but have ran into issues lately with z3x and 4.3 on i747. Basically everyime i use 23x box something goes wrong last night it started with an extra number being inserted in the imei. Not knowing that ns pro will wreck your modem i tried it and now the imei is null and baseband is unknown. Any help would greatly be appreciated. There was alot i did not know about unlocking because i got into this with ns pro back when there was 0 problmes with anyhting below 4.3, but now 4.3 is killing me.
Here is what i have done
i have tried to rewrite imei mulitple times
i have tried qpst with a good know qcn fiel but it just error out. everytime
the problem
*#7284# shows up but wont allow me to switch between modem andpda
phone will not read in either z3x or ns pro
it would seem like tis not reading in qpst either as it wont allo me to restore any of the good know files
i just really want to be done with this and move on.
Another question i have is int he furute if i do a full nv backup with nv reader writer will this help at all. Like is said i am only having this problem ont he 747 and i have searched xda, ns pro, and z3x forums for an answer and i cant seem to find one. My next step is just to replace the baseband chip and be done, but that alot of work and i hate reballing any bga.
Thanks in Advance
Scott
Click to expand...
Click to collapse
Looks like your modem is compromised. You can download the modem via the following link and try reflashing recovery.
http://www.androidfilehost.com/?fid=23212708291681456

Larry2999 said:
Looks like your modem is compromised. You can download the modem via the following link and try reflashing recovery.
Larry thank you so much for your help, and i am embarrased to say this but i dont know how to do that. Is it a file i put into the pda section of odin and put the phone in download mode.
Click to expand...
Click to collapse

scoeas1982 said:
Larry2999 said:
Looks like your modem is compromised. You can download the modem via the following link and try reflashing recovery.
Larry thank you so much for your help, and i am embarrased to say this but i dont know how to do that. Is it a file i put into the pda section of odin and put the phone in download mode.
Click to expand...
Click to collapse
No, it's a zip file which has to be flashed via (custom) recovery. If you do not have custom recovery, you can flash that to your phone via Odin. There are several options for custom recovery but most common options are CWM, TWRP and Philz Touch which is an enhancement of CWM.
First download the modem file to your computer. Copy it to your phone's internal SD card if you can or to an external (micro) SD card.
Once you have the zip ready, boot your phone into recovery mode via the 3-button combo (Volume Up, Home and Power).
When you are in recovery mode, select install and navigate to the modem zip. Start flashing. Wait for flashing to be complete and reboot to system. I'd have sent you some download links for custom recovery but I'm writing this in a fly. You could, however, do a search through this forum.
Click to expand...
Click to collapse

Larry thank you so much it actually worked in case someone lese has this problem im going to post waht i did
i downloaded the file
flashed the modem.bin file via twrp. I just put it on the phone i did not use the sd card
then i rewrote the imei with ns pro verision 6.7.1 (this phone was on 4.3)
i know have my imei back, and i know also i have the phone in 100 percent working condition with a full imei.
TAKE MY ADVICE AND BACK UP THE NV ITEMS before doing a s3 747 or 999 on z3 box just in case. I have spent close to 3 days trying to fix these phones.
Thank you Larry so very very much. If you have a link to paypal i will donate to you.

alos if you are going to install the file to your phone remeber to put it back into mtp+adb so you can move it your phone with out an sd card

ok so after completeting this you will only get edge network download the nv writer and nv items from the link below and then you will get 4g lte back
http://forum.gsmhosting.com/vbb/f286/nv-items-t999-i747-i317-t889-1647823/

scoeas1982 said:
Larry thank you so much it actually worked in case someone lese has this problem im going to post waht i did
i downloaded the file
flashed the modem.bin file via twrp. I just put it on the phone i did not use the sd card
then i rewrote the imei with ns pro verision 6.7.1 (this phone was on 4.3)
i know have my imei back, and i know also i have the phone in 100 percent working condition with a full imei.
TAKE MY ADVICE AND BACK UP THE NV ITEMS before doing a s3 747 or 999 on z3 box just in case. I have spent close to 3 days trying to fix these phones.
Thank you Larry so very very much. If you have a link to paypal i will donate to you.
Click to expand...
Click to collapse
How were you able to rewrite using ns pro 6.7.1? everytime i try, it tells me operation failed. thanks

yes you are correct i am using 6.7.0 to rewrite the imeo not 6.7.1

scoeas1982 said:
Larry thank you so much it actually worked in case someone lese has this problem im going to post waht i did
i downloaded the file
flashed the modem.bin file via twrp. I just put it on the phone i did not use the sd card
then i rewrote the imei with ns pro verision 6.7.1 (this phone was on 4.3)
i know have my imei back, and i know also i have the phone in 100 percent working condition with a full imei.
TAKE MY ADVICE AND BACK UP THE NV ITEMS before doing a s3 747 or 999 on z3 box just in case. I have spent close to 3 days trying to fix these phones.
Thank you Larry so very very much. If you have a link to paypal i will donate to you.
Click to expand...
Click to collapse
Glad to know your phone is working fine now. Maybe I should put up a donation link. Just kidding ... seriously though, if you are happy with the support you are getting from the forum and make a donation to XDA, you'd be helping to keep the forum going.

Thanks for the help to both you guys!!!

INVALID/00 [re-write] IMEI without any backup

As there's no solutions yet for the problems above hope you guys or some devs. can help/produce some solutions.. more specific situations:
1. you never backup the imei numbers
2. device totally bricked (fatal error/failed while flashing fastboot rom).
3. device fall into qhsusb_bulk, which no fastboot or recovery access..
4. bring it back to live with testpoint process(hardware) jtag likes on other devices.
5. its back to live with known baseband, esn but the 00/invalid imei.
what to achieves :
1. find ways to bring back its default imei numbers.
ive do some research and ive start a thread on miui forums too
you can see it here http://en.miui.com/forum.php?mod=viewthread&tid=166001&mobile=2
some people does have this problems too.
Anyone who wanna contributes some help some posible files needed to make it work:
1. A QCN backup from working/normal phones
2. NV backup files, again from normal phones with imei
#how to access/enable qualcomm port acessible you must be in MIUI 5(must as it wont detected on pc when youre in miui6/7), you have to flash it with fqstboot rom.. and dial this secret code *#*#717717#*#* make sure that you have qualcomm drivers installed.

update*
succesfully loaded its default imei (sim1) and don't know how about the sim2 rewrite..
#but still not getting signal (no service).
more suggestions andhelpwouldbe appreciated
proof picture#

SH1M4BD3 said:
update*
succesfully loaded its default imei (sim1) and don't know how about the sim2 rewrite..
#but still not getting signal (no service).
more suggestions andhelpwouldbe appreciated
proof picture#
Click to expand...
Click to collapse
I too lost my basesband, imei and wifi mac address.
But i got them back after restoring a few efs partitions that i downloaded from a blog I found.
It seems that I cannot post any links so i added some spaces in the url
Here is the url- www . amw-android.my . id/2015/05/fix-imei-baseband-xiaomi-redmi-1s.html?showComment=1445024870694#c3080464083769125141

did that procedures.. at the 1st try but seems its not working for me as my situation is Baseband is safe (not unknown) but the imei was 0..

CLOSED!!!! Since i succesfully write down the SIM1&2 IMEI, but still cannot get any signal, seems EFS partitions totally breaks

I had the same issue. Then I flashed with the fastbootrom country specific, i did India based using miphone flasher. In this you need to specifically select flash_all.bat, so that it erases the entire IMEI and updates with default from your phone. Once you do that, it restores the baseband MIUI rom. Then you can flash TWRP and then any custom rom. This worked very well for me and I could use my phone. Also the both the sim cards are restored.

Strange that, after flashing the Indian Fastboot ROM, i ended up with known Baseband, Wifi address. But IMEI still invalid or 0.
Any help please?
Thanks

Can someone provide me their g960f EFS folder? (NOT the IMEI or anything sensitive)

Long story short, I screwed up and I deleted everything from my EFI folder. No backup (captain hindsight) Doing a stock flash with Odin seemed to kinda restore the EFS, but I have generic IMEI and no network support. I have my IMEI (its on the back of the phone). I tried to write it with z3x, but it gives an error. I think its because my EFS is not "correct". If someone could provide me their EFS folder. NOT the IMEI folder or anything that you consider as sensitive (beggars cant be choosers) I would be grateful.
I am struggling 3 days now trying to get my phone back, every forum post and youtube video about restoring IMEI is a scam and/or full of viruses.
Any help would be appreciated, every guide that seemed legit is outdated and doesnt work on s9 with android Q.
Thanks in advance.

Hi there
palamosteliaro said:
Long story short, I screwed up and I deleted everything from my EFI folder. No backup (captain hindsight) Doing a stock flash with Odin seemed to kinda restore the EFS, but I have generic IMEI and no network support. I have my IMEI (its on the back of the phone). I tried to write it with z3x, but it gives an error. I think its because my EFS is not "correct". If someone could provide me their EFS folder. NOT the IMEI folder or anything that you consider as sensitive (beggars cant be choosers) I would be grateful.
I am struggling 3 days now trying to get my phone back, every forum post and youtube video about restoring IMEI is a scam and/or full of viruses.
Any help would be appreciated, every guide that seemed legit is outdated and doesnt work on s9 with android Q.
Thanks in advance.
Click to expand...
Click to collapse
Did you ever manage to get this sorted, i have exactly same problem?

If your imei is screwed up try flashing the proper base band. Imei isn't stored in efs. And the imei is based on a cert file. Cannot just be written to the device