Database Users

IMEI Unknown, Base-band Unknown, Please Insert SIM card

Hi everyone. I know this problem is well known, and Ive done hours and hours of search online and on XDA but none of the solutions worked or maybe i didnt do it right!
The problem, My friend have flashed a Custom frimware (Litning 6) and lost his IMEI and Baseband some how, they tell Unknown, and now he cant access his SIM or network, the phone doesnt really see the SIM at all.
Ive tried to use Chainfires APK to fix it didnt work, and the Hex stuff really made me dizzy out. didnt know how to use it really.
Ive tried to recover to EFS stuff but i think his EFS is trashed and he didnt back it up..
Tried flashing 2.3.3 stock rom and 2.3.4 no luck. still no baseband or IMEI..
Any suggestions? im out of luck and depressed

Why are you out of luck and depressed if its your friends phone?
If you dont know and understand how to recover these details I would say flash to a stock rom and take phone into a SSC and let them repair it for you.

Same thing happened to me, the phone eventually showed firmware emergency error so I just gave it to samsung service centre, they replaced the logic board etc and got it back 3 weeks later

http://forum.xda-developers.com/showthread.php?t=1269989&page=4
Sent from my GT-I9100

ill look those links,,, but can i use someones EFS folder to fix this?

Ive checked the links. i think noth bin and .bak files are bad. cuz he already tried messin with them.. XD need new nv_data

you said that he LOST his IMEI.If thats true,and by using a root explorer with root access you can look inside the efs file or mark *#06# and see if nothing comes up,then without a backup theres no way you will get the original back without sending it away to the service centre(personal experience) but when it come back heres a good backup method.Easy as to backup and restore.
http://forum.xda-developers.com/showthread.php?t=1308546

cooza said:
you said that he LOST his IMEI.If thats true,and by using a root explorer with root access you can look inside the efs file or mark *#06# and see if nothing comes up,then without a backup theres no way you will get the original back without sending it away to the service centre(personal experience) but when it come back heres a good backup method.Easy as to backup and restore.
http://forum.xda-developers.com/showthread.php?t=1308546
Click to expand...
Click to collapse
Basicly his SGS2 is not even capable of bring a paper weight cuz its too light (100g) lool.. what a bummer... ill try to find a shop to fix it with a box or something,, thanks all!

If you check your nvdata.bin and md5 you will see that, they modified the same day you lost your imei. So you have to return back to those baks and I don't think you can use another device's efs since your imei is hidden in that file.
Sent from my GT-I9100

bsglan said:
If you check your nvdata.bin and md5 you will see that, they modified the same day you lost your imei. So you have to return back to those baks and I don't think you can use another device's efs since your imei is hidden in that file.
Sent from my GT-I9100
Click to expand...
Click to collapse
thanks.. tried that, they are curropted. i sent my friend phone to hard ware repair shop, he claimed he have something called Samsung tools and box which can repair the imei! will see

new solution lounched Fix Repair unknown base banad I9100
Asansam ver 1.6.5 Released
-Fix Repair unknown base banad I9100
Note 1:
we add 3 Solution for this problem after you click Repair unknown baseband and select i9100,procedure start after finishing Solution 1 and phone restart check imei (with *#06#) if solution work you must see your phone imei if you see that you can cLick cancel and enjoy your revived phone if not click on continue and wait until solution 2 finished
do same like after solution 1 (*#06#) work on phone if you get good answer click cancel if not continue for starting last solution if it's not work too,believe me fellas check for hardware fault

Somehow this has happened to my phone, it is not even rooted, I flashed a newer firmware because I'm with bell mobility and they are still on 2.3.3, but that was over a month ago and just yesterday my phone stopped reading my sim card, and the IMEI and baseband are unknown.. I've tried a factory reset and to reflash the firmware, but it is still not working..
Now I cannot find the stock bell mobility firmware either to send it back..
has anyone figured out how to fix this problem? Or what could have caused it in my case?

looks like the service centre is the only option. Best to back up the EFS before tinkering with anything.

my GT-I9100 does this when I let it completely run out of battery power. I've only noticed it since flashing the ICS leaks but this may have been a problem before and I've not noticed.
When I plug the phone into the charger and start it up *#06# IMEI shows as unknown and *#1234# shows unknown modem, I have a small airplane mode symbol and occasionally, a no sim card error.
To fix this I have to let it take a charge for a while with the phone on - then reboot WITHOUT the charger cable plugged in. I probably have some kind of hardware fault but its not that important to me. I have an EFS backup, well I have a few backups here and there

happened to me a few days ago
http://forum.xda-developers.com/showthread.php?t=1526733

Not Register in the Network

Hello,
I have a Samsung Galaxy S4 (GT-I9500).
Yesterday, i flash the custom rom (XWUBMG5 V1.9 by Wanam). After this, i can't call or send message, i have an error message "Not register in the Network" in a black background.
I test another custom rom (Omega V11) and finaly test a official samsung rom (XWUBMG5), but the problem stay here :s.
I also change my simcard for a new one, but the same problem...
Now i don't know what to do, my phone is dead ?
Thankx for your futur help.
Regards.

thirthy said:
Hello,
I have a Samsung Galaxy S4 (GT-I9500).
Yesterday, i flash the custom rom (XWUBMG5 V1.9 by Wanam). After this, i can't call or send message, i have an error message "Not register in the Network" in a black background.
I test another custom rom (Omega V11) and finaly test a official samsung rom (XWUBMG5), but the problem stay here :s.
I also change my simcard for a new one, but the same problem...
Now i don't know what to do, my phone is dead ?
Thankx for your futur help.
Regards.
Click to expand...
Click to collapse
Do you see your IMEI number if you type *#06#?
Did you backup your EFS folder? It may have gotten corrupted somehow.

Yes i see it, it starts by "0049.....". It's strange, because my IMEI number in the galaxy S4 box aren't the same. In the box, the IMEI number start by "357....".
For my EFS folder, i don't have a backup :s

thirthy said:
Yes i see it, it starts by "0049.....". It's strange, because my IMEI number in the galaxy S4 box aren't the same. In the box, the IMEI number start by "357....".
For my EFS folder, i don't have a backup :s
Click to expand...
Click to collapse
Oh dear, your phone has had it. You have a corrupt IMEI number.
This recently happened to my Galaxy S3 (IMEI also changed to 0049...) and after days of various members of XDA trying to help there is NOTHING you can do to fix it if you haven't backed up your EFS folder.
Go back to stock and send it off for repair. Mine is back at Samsung as we speak
Lesson learnt - ALWAYS backup your EFS folder!!!

Alex---1 said:
Oh dear, your phone has had it. You have a corrupt IMEI number.
This recently happened to my Galaxy S3 (IMEI also changed to 0049...) and after days of various members of XDA trying to help there is NOTHING you can do to fix it if you haven't backed up your EFS folder.
Go back to stock and send it off for repair. Mine is back at Samsung as we speak
Lesson learnt - ALWAYS backup your EFS folder!!!
Click to expand...
Click to collapse
what is efs anyway where can i find it.? my phone is stock i9500 not rooted imei not changed. still getting this error can anybody help the sim is working fine on other phones

Note 3 Exynos n900 baseband is ok but imei null ?

hi my friends, i hope you could help me with this, im having a strange problem,i bought a note 3 n900 second handed with this problem, it has imei null and baseband unknokn, i sended it to repair store but they solve half of the problem since now it shows the correct baseband but still imei null, is there anyway i can fix this ? (see attachments)
i must add that since i bought it had that imei null thing, so i have no efs backup, anyway i saved its EFS folder backup when i first started to mess with it, but when i try to restore that EFS the problem persist. I think maybe the efs folder was already corrupted when i bought it.
thanks any ideas would be appreciated.

they just flashed the right baseband maybe but there is a problem with the radio chip. it's just a tablet and there is no legal way to recover your imei i am afraid (other methods involve using an unlock box).

You got any solution

hajakmc said:
You got any solution
Click to expand...
Click to collapse
Restore backed up EFS folder .
Sent from my SM-N930F using XDA-Developers mobile app

I don't have any backup efs folder.

Service centre best or you could spend hours reading the forum re no EFS Imei .
Sent from my SM-N930F using XDA-Developers mobile app

Thanks for response. Can i recover from memory card? When i installed custom rom, it will backup efs automatically. Which recovery is best? Dr.ketan...voilla...etc. I didn't understand. What is that?

Custom roms do not back up EFS.
Sent from my SM-N930F using XDA-Developers mobile app

EFS brick / problem ?

I did a full nandroid backup (including EFS and mobile) from my broken S5 (just cracked screen), when I got a refurbished S5. I restored full backup on the new S5.
When I turned the new S5 on for the first time before restoring backup, sim card worked just perfectly. But after when I restored my full nandroid backup on it, now any sim card won't work.... It asks for SIM card pin (I put correct one) no worky. Got another new sim card from the same provider, not working either.
I flashed to offical samsung firmware, that didn't fix the sim card problem either.
Can someone help please?
P.S, both IMEI and baseband on the new s5 show up on 'About Device'. The IMEI is the correct one (according to a paper), not the same as my old broken S5.

Erm, and you are posting this in nexus 6p forum because.. ?

Indeed.. your in the wrong place here.. we are Nexus fan boys and hate Sammy over here??
But what are you doing with efs? Don't touch the **** when you don't know what you're doing..
Sent from my Nexus 6P using XDA-Developers mobile app

Restoring system and data from old phone to the replacement phone as long as same Android version OK but why the heck would you restore the EFS ?? That probably why your in this situation.. it's my understanding that the EFS is unique for each device and u should have never restored that..
Looks like you will be doing another replacement phone..
But you really should be posting this in the forum for this device..
Sent from my Nexus 6P using Tapatalk

Need help in fixing Samsung nore4 N910s Null imei

Assalam o alaikum
I've Samsung Note 4 N910s
While installing custom rom, phone was bootlooping so i pulled the battery but when i again started the phone the internal storage was wiped and Phone was showing Not registered on network and when I dialed code to check imei the imei was 0000000000000000000
I've installed the stock firmware but Still no imei
Can anyone help me to how to fix it
Thanks in advance

Hy friend, have you backed up EFS? You can restore efs data, your imei will be back. Maybe
Sent from my SM-N930F using Tapatalk

zzudha said:
Hy friend, have you backed up EFS? You can restore efs data, your imei will be back. Maybe
Sent from my SM-N930F using Tapatalk
Click to expand...
Click to collapse
Assalam o alaikum
Hey Buddy thats the problem
I didn't back it up

maxi65 said:
Assalam o alaikum
I've Samsung Note 4 N910s
While installing custom rom, phone was bootlooping so i pulled the battery but when i again started the phone the internal storage was wiped and Phone was showing Not registered on network and when I dialed code to check imei the imei was 0000000000000000000
I've installed the stock firmware but Still no imei
Can anyone help me to how to fix it
Thanks in advance
Click to expand...
Click to collapse
I am afraid your efs partition and imei is lost you should have a backup from twrp.
If you take my advice just go to any repair shop and they will write a new certificate files using a box called "dongle" it will cost you less then 10$ i guess without this box its not possible to get your imei back so dont waste your time and dont flash files you dont know because your 200$ device may end up hard brick and completely useless.

Trex888 said:
I am afraid your efs partition and imei is lost you should have a backup from twrp.
If you take my advice just go to any repair shop and they will write a new certificate files using a box called "dongle" it will cost you less then 10$ i guess without this box its not possible to get your imei back so dont waste your time and dont flash files you dont know because your 200$ device may end up hard brick and completely useless.
Click to expand...
Click to collapse
I didn't back it up and now give my phone for repair but in Pakistan there is no skilled and experienced technician.
They even don't know what had happened to the fone.