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

[Q] No registered on network

Hi, i have a problem with my S4 gt-i9500, one day my device become to kitkat and then the imei number change to 049... so i pay for a repair, everything was fine after repair but when i change the rom to a custom one the phone said "no registered on network", i go back to the last stock rom but not solve the problem, i have the imei as back phone say, what can i do? Any idea? Thanks

Restore your efs folder.

LilithL said:
Hi, i have a problem with my S4 gt-i9500, one day my device become to kitkat and then the imei number change to 049... so i pay for a repair, everything was fine after repair but when i change the rom to a custom one the phone said "no registered on network", i go back to the last stock rom but not solve the problem, i have the imei as back phone say, what can i do? Any idea? Thanks
Click to expand...
Click to collapse
Had the same problem like you before. You must have done something that altered the Baseband/Modem. I will assume you haven't made an EFS Backup. What you can do is this, download a stock Firmware and manually flash is. Just be sure that the firmware you will download is meant for your country. After flashing, try to see the IMEI of your phone. If the correct IMEI shows, then try making calls, text and connect to your mobile data. If not, then try flashing any modem meant for GT-i9500. If the problem still persist, then your last option would be to change baseband antennae or worst, replace the board itself which can only be done by technicians which has the proper replacement parts.

Thanks for answering, i flash my device with my country oficial stock room, after that im still having the correct imei but cant make calls, say no service and no registered on network, i have efs backup, but after restore nothing happend =(

Solved
Hello, me again, just to say that i solve my problem and just for 10 € , Rafal its a great guy! he repair my network in just 5 min heres he's page, please visit him if have the same problem fast, cheap and works!.
Thanks for your answers too!

218
Rafal's page: cvxcvx.pl

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

Sim unknown ( imei and baseband does not missing )

https:--//--drive.google.com/file/d/0B10BlYMZBuFhcU5XbFVjVW8yT2M/view
https:--//--drive.google.com/file/d/0B10BlYMZBuFhc3RBNUdXWTlZLWM/view
https:--//--drive.google.com/file/d/0B10BlYMZBuFhbkpqNlVSTlhoV00/view
https:--//--drive.google.com/file/d/0B10BlYMZBuFhdEp0VXdpMlZ3eUU/view
(copy with no -- )
installed with stock rom (6.0.1)(XME)
WIFI and BLUETOOTH working
pls help XDA
thanks in advance

Do you have EFS backup saved?

Yes

I once had a same problem on my Galaxy Grand 2
If you have EFS backup just restore it and it should fix the problem
If you don't, take it to Samsung repair centre and replace the whole motherboard for around $150

Yuen.Jason22 said:
I once had a same problem on my Galaxy Grand 2
If you have EFS backup just restore it and it should fix the problem
If you don't, take it to Samsung repair centre and replace the whole motherboard for around $150
Click to expand...
Click to collapse
In my country, that's how much the phone costs..

How can it be like that i already backup EFS already restore and the baseband and the imei are the wifi and Bluetooth is working well and the only problem is the sim card it's like blocking me from using it , it's because of the motherboard and how could it be (sorry i still don't understand) or its because of region lock ( random guess )

Galaxy A5 2017 SM-A520F - root/IMEI problem/question

Hello all,
Ok let me tell you what happened first.
In March I bought said phone on ebay from a guy which seemed a legit person, 150 or so reviews, a lot of stuff sold, positive reviews etc.
For the past 6 month everything worked fine and i used the phone in the UK on EE (phone is locked to EE) without problems.
on Saturday the phone suddenly has been not geting any signal so I did some invetigations and it turns out the guy who sold the phone is on contract with EE with the phone and did an insurance claim as lost or stolen.
So now the phone has been Blacklisted and i cant use it anymore, to make calls etc on any network.
I tried to get Info from |EE, Ebay etc but with no luck.
I did some research and found that i can change the IMEI number to make the phone work again.
So I must say first up that I dont have a clue from rooting or any modyfing stuff with phones apart from the normal ANdroid things.
So I did some research and after misserably failing to root the phone myself, I got a company "one click root" to succesfully got my phone rooted.
Now I tried the options to change the IMEI number but none of them works:
"ok i cant post outside links:
the 2 versions to change IMEI which i found and tried are : with xposed and imeichanger app, and also one where you have to dial a number which opens radio frequenzy and then another number where you can change IMEI number
this does not work because the xposed framework is not compatible with this phone (yet)
this does not work as i dont have signal and the "call" does not go through.
thats the only thing I found and i thought as a last resort I try my luck here if anyone knows of a different way tho change the IMEI number for this phone apart from the 2 options above before i go and spend another 350£ for a new phone (this time from a shop )
thanks in advance
D.

Have you solved your problem?
DeSchu83 said:
Hello all,
Ok let me tell you what happened first.
In March I bought said phone on ebay from a guy which seemed a legit person, 150 or so reviews, a lot of stuff sold, positive reviews etc.
For the past 6 month everything worked fine and i used the phone in the UK on EE (phone is locked to EE) without problems.
on Saturday the phone suddenly has been not geting any signal so I did some invetigations and it turns out the guy who sold the phone is on contract with EE with the phone and did an insurance claim as lost or stolen.
So now the phone has been Blacklisted and i cant use it anymore, to make calls etc on any network.
I tried to get Info from |EE, Ebay etc but with no luck.
I did some research and found that i can change the IMEI number to make the phone work again.
So I must say first up that I dont have a clue from rooting or any modyfing stuff with phones apart from the normal ANdroid things.
So I did some research and after misserably failing to root the phone myself, I got a company "one click root" to succesfully got my phone rooted.
Now I tried the options to change the IMEI number but none of them works:
"ok i cant post outside links:
the 2 versions to change IMEI which i found and tried are : with xposed and imeichanger app, and also one where you have to dial a number which opens radio frequenzy and then another number where you can change IMEI number
this does not work because the xposed framework is not compatible with this phone (yet)
this does not work as i dont have signal and the "call" does not go through.
thats the only thing I found and i thought as a last resort I try my luck here if anyone knows of a different way tho change the IMEI number for this phone apart from the 2 options above before i go and spend another 350£ for a new phone (this time from a shop )
thanks in advance
D.
Click to expand...
Click to collapse
I have the same problem but my IMEI is not blacklisted but my IMEI is 0 after to try to flash back to stock

flozge said:
I have the same problem but my IMEI is not blacklisted but my IMEI is 0 after to try to flash back to stock
Click to expand...
Click to collapse
Use z3x samsung edition to repair the imei
Sent from my Samsung SM-A9000 using XDA Labs

nonomektoub said:
Use z3x samsung edition to repair the imei
Click to expand...
Click to collapse
Ok will the programm cost something?

flozge said:
Ok will the programm cost something?
Click to expand...
Click to collapse
Yes, it's a box. Try flashing stock rom
Sent from my Samsung SM-A9000 using XDA Labs

nonomektoub said:
Yes, it's a box. Try flashing stock rom
Click to expand...
Click to collapse
The box is in Germany not available so I can't buy it and on stock rom the phone have the 0 IMEI too

flozge said:
The box is in Germany not available so I can't buy it and on stock rom the phone have the 0 IMEI too
Click to expand...
Click to collapse
I take it this means you didn't create that all important backup before modding your device? :silly:
Try downgrading the firmware first then flash the latest updated firmware

ashyx said:
I take it this means you didn't create that all important backup before modding your device? :silly:
Try downgrading the firmware first then flash the latest updated firmware
Click to expand...
Click to collapse
Right I have no efs backup and that I have already made but my IMEI is still 0

Hi guys,
I have an issue with My SM-A520F. I bought it to a particular and according to the initial network provider, this person stop to pay his subscription.
So, I'm looking for solution to change IMEI for this model. I think the nv_data.bin is encrypted. Perhaps if I change the nv_data.bin(whith the corresponding nv_data.bin.md5) with another which not blocked in my country it will work. So, if someone want to exchange his nv_data.
---------- Post added at 03:21 PM ---------- Previous post was at 02:47 PM ----------
DeSchu83 said:
Hello all,
Ok let me tell you what happened first.
In March I bought said phone on ebay from a guy which seemed a legit person, 150 or so reviews, a lot of stuff sold, positive reviews etc.
For the past 6 month everything worked fine and i used the phone in the UK on EE (phone is locked to EE) without problems.
on Saturday the phone suddenly has been not geting any signal so I did some invetigations and it turns out the guy who sold the phone is on contract with EE with the phone and did an insurance claim as lost or stolen.
So now the phone has been Blacklisted and i cant use it anymore, to make calls etc on any network.
I tried to get Info from |EE, Ebay etc but with no luck.
I did some research and found that i can change the IMEI number to make the phone work again.
So I must say first up that I dont have a clue from rooting or any modyfing stuff with phones apart from the normal ANdroid things.
So I did some research and after misserably failing to root the phone myself, I got a company "one click root" to succesfully got my phone rooted.
Now I tried the options to change the IMEI number but none of them works:
"ok i cant post outside links:
the 2 versions to change IMEI which i found and tried are : with xposed and imeichanger app, and also one where you have to dial a number which opens radio frequenzy and then another number where you can change IMEI number
this does not work because the xposed framework is not compatible with this phone (yet)
this does not work as i dont have signal and the "call" does not go through.
thats the only thing I found and i thought as a last resort I try my luck here if anyone knows of a different way tho change the IMEI number for this phone apart from the 2 options above before i go and spend another 350£ for a new phone (this time from a shop )
thanks in advance
D.
Click to expand...
Click to collapse
Hi Xposed and IMEI changer will not help you. If you want I can explain you how to install it on this phone. But the IMEI changed by IMEI changer with xposed framwork is not the IMEI sent to the network provider. The IMEI changed by this app is used to mask your IMEI to the apps that track you by using the IMEI. So it's just a spoof of the IMEI for apps using IMEI and not a really IMEI change.

nonomektoub said:
Use z3x samsung edition to repair the imei
Sent from my Samsung SM-A9000 using XDA Labs
Click to expand...
Click to collapse
imei changing or certication not suported by z3x till now

Anyone found out any solution? I just got screwed on Gumtree. The guy showed me it was on 3 but when I came home it wouldn't register any sim. Imei unknown. Baseband unknown. Tried flashing firmware no luck

big_b0sss said:
Anyone found out any solution? I just got screwed on Gumtree. The guy showed me it was on 3 but when I came home it wouldn't register any sim. Imei unknown. Baseband unknown. Tried flashing firmware no luck
Click to expand...
Click to collapse
Backup the EFS with TWRP then delete the EFS folder. The EFS should rebuild and give a default IMEI when the devices reboots or try deleting NV_DATA.bin, NV_DATA.bin.md5, it should get replaced by NV_DATA.BAK.bin if it's any good.
You can also attempt to Format and remount the EFS partition. It works for some devices.

ashyx said:
Backup the EFS with TWRP then delete the EFS folder. The EFS should rebuild and give a default IMEI when the devices reboots or try deleting NV_DATA.bin, NV_DATA.bin.md5, it should get replaced by NV_DATA.BAK.bin if it's any good.
You can also attempt to Format and remount the EFS partition. It works for some devices.
Click to expand...
Click to collapse
But in my case i rakon the guy reported the device lost and got blacklisted. Would your method still work?

big_b0sss said:
But in my case i rakon the guy reported the device lost and got blacklisted. Would your method still work?
Click to expand...
Click to collapse
Guess not in that situation, but you may be able to delete the EFS and enable the default Imei.
.

ashyx said:
Guess not in that situation, but you may be able to delete the EFS and enable the default Imei.
.
Click to expand...
Click to collapse
Many thanks for the reply. I'll see if I can un blacklisted in phone repair shops

Hi. Maybe it could help. Try QPST. It's a powerfull tool for imei changing

nonomektoub said:
Hi. Maybe it could help. Try QPST. It's a powerfull tool for imei changing
Click to expand...
Click to collapse
Unfortunately only works on Qualcomm devices.

ashyx said:
Unfortunately only works on Qualcomm devices.
Click to expand...
Click to collapse
Hi bro I need some help I have SM-A520S(A5 2017) try to install custom rom after installation my imei/SN number gone I tried every firmware also tried combinations files baseband shown still imei/SN null try your method describe in post #12 help will be appreciated Knox warranty is void status 1

majinawaz said:
Hi bro I need some help I have SM-A520S(A5 2017) try to install custom rom after installation my imei/SN number gone I tried every firmware also tried combinations files baseband shown still imei/SN null try your method describe in post #12 help will be appreciated Knox warranty is void status 1
Click to expand...
Click to collapse
Restore your backup of the EFS partition.

ashyx said:
Restore your backup of the EFS partition.
Click to expand...
Click to collapse
Don't hav backup