[Q] IMEI unknown but everything works. (Currious) - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

Hello XDA...
Ive been reading up on this for a few days and im confused and curious.
My IMEI is showing unknown in about device / status and entering *#06# into the dialer shows / 17. The weird thing is 4g LTE, MMS, SMS, and phone calls all work. I got the phone off of eBay already Sim unlocked. Since then I have rooted the phone and updated to official 4.4.4.
I did some research and I read that the IMEI is stored in the nv_data.dat file which I do not have in my efs/imei directory. I use Root Explorer and I have it set to show hidden files. As I said I got the phone off of eBay so I don't know if it was unlocked using a code, a box, or if it was factory unlocked.
Here is what im wondering.
#1. When you sim unlock a phone does the nv_data.dat file disappear? (This might depend on the method? Maybe? IDK...)
#2. Does 4.4.4 handle the storage of the IMEI differently? If so how does it store it.
#3. Can I get the IMEI to show up again?
I do know my IMEI as it is on the sticker behind the battery along with the model number and serial number. But why android isn't showing it is really bothering me.
Additional Information that might help.
Model = SGH-I337 (AT&T Branded)
Android Version = 4.4.4
Rooted = Yes
Busy Box = Yes
Baseband version = I337UCUFNJ4
IMEISV = 17
Carrier = NET10 (Using NET10 AT&T Sim)
If additional info is needed please ask. I have tried to give all the info I could think of that would be useful to this question.
Thanks in advance for your time and patience.

Related

[help] I see my IMEI but...

Hi all, i've purchased an SM-G900F but there is a problem, it has rooted.
I've noticed those :
- I can see IMEI number (if i do #*06#) but my EFS folder is empty
- When turn on WiFi , the device will reboot automatically and appear " Factory Mode is On"
- i can make first call with sim , after i'm unable to call , but the 3G network works
- Whit ES File Explorer i've see that my efs folder is empty (But i can see my IMEI with secret code)
- In Device Info i see one time "Official Status" and another time "Personalized Status"
I'm tinking that old owner is a very st......d guy. Howewer these are all information :
Model : SM-G900F
Version : 4.4.2
BASEBAND : NE2
BUILD : NE2
What do you think? How i can solve the problems?
EDIT 1 : i've formatted from recovery , now it ask me to insert the samsung account of old owner...
- Use Phone INFO ★Samsung★ app to obtain more detailed information about your device, including Model, Baseband, Bootloader, CSC, IMEI, S/N, etc...
- May be the Reactivation lock has been enabled. You should ask the ex-owner for the account.
qwertyup88 said:
Hi all, i've purchased an SM-G900F but there is a problem, it has rooted.
I've noticed those :
- I can see IMEI number (if i do #*06#) but my EFS folder is empty
- When turn on WiFi , the device will reboot automatically and appear " Factory Mode is On"
- i can make first call with sim , after i'm unable to call , but the 3G network works
- Whit ES File Explorer i've see that my efs folder is empty (But i can see my IMEI with secret code)
- In Device Info i see one time "Official Status" and another time "Personalized Status"
I'm tinking that old owner is a very st......d guy. Howewer these are all information :
Model : SM-G900F
Version : 4.4.2
BASEBAND : NE2
BUILD : NE2
What do you think? How i can solve the problems?
EDIT 1 : i've formatted from recovery , now it ask me to insert the samsung account of old owner...
Click to expand...
Click to collapse
reactivation lock is on. you will need to contact old owner. There is also a way to "fix" that but not sure if it is appropriate for XDA.
kabloomz said:
reactivation lock is on. you will need to contact old owner. There is also a way to "fix" that but not sure if it is appropriate for XDA.
Click to expand...
Click to collapse
Can you send me an email ? i really need hepl
vndnguyen said:
- Use Phone INFO ★Samsung★ app to obtain more detailed information about your device, including Model, Baseband, Bootloader, CSC, IMEI, S/N, etc...
- May be the Reactivation lock has been enabled. You should ask the ex-owner for the account.
Click to expand...
Click to collapse
The guy was not traceable now. He's vanished ....
You are kinda between a rock and a hard place if reactivation lock is enabled and you don't have the login to toggle that. In most cases that means that the phone is stolen and this is an explicit anti theft feature. You need that login from the original owner. Or if you have the original receipt, you might be able to convince a Samsung repair center to disable the reactivation lock for you.
In any event, as to your original question the most likely cause of the problem is a corrupt configuration file, namely a text file named "factorymode". You can try this repair from the command line or a root aware text editor.
Code:
echo -n ON > /efs/FactoryApp/factorymode
.
fffft said:
You are kinda between a rock and a hard place if reactivation lock is enabled and you don't have the login to toggle that. In most cases that means that the phone is stolen and this is an explicit anti theft feature. You need that login from the original owner. Or if you have the original receipt, you might be able to convince a Samsung repair center to disable the reactivation lock for you.
In any event, as to your original question the most likely cause of the problem is a corrupt configuration file, namely a text file named "factorymode". You can try this repair from the command line or a root aware text editor.
Code:
echo -n ON > /efs/FactoryApp/factorymode
.
Click to expand...
Click to collapse
Just now the guy told me account and password . Now i'm able to use my phone !!!!! But now i see that the efs folder is empty...
qwertyup88 said:
Just now the guy told me account and password . Now i'm able to use my phone
Click to expand...
Click to collapse
Great. But you neglected to tell us if you tried (or even noticed) the suggestion to check your factory mode configuration file. The contents should show "ON" (yes, "ON") and the permissions 0644. Your efs folder may appear empty to you when it really isn't. It depends on whether you have your file browser (or command line options) set to display hidden and system files or not.
.
fffft said:
Great. But you neglected to tell us if you tried (or even noticed) the suggestion to check your factory mode configuration file. The contents should show "ON" (yes, "ON") and the permissions 0644. Your efs folder may appear empty to you when it really isn't. It depends on whether you have your file browser (or command line options) set to display hidden and system files or not.
.
Click to expand...
Click to collapse
y factory mode is on , because i can't acces my wifi, and it appear that factory mode is on. I've set to see hidden files , but now i haven't root on my device
Edit: terminal emulator say : no such file or directory
Edit 2 : Solved with terminal emulator and busy box Thanks to @leoaudio13 for his dump
These are the command for mount efs :
su
mke2fs /dev/block/mmcblk0p12
mount -w -t ext4 /dev/block/mmcblk0p12
reboot
After then , with text editor i've disabled FactoryApp in efs folder tanks to all
.
For the benefit of anyone else reading this thread, do not repeat the steps in the post above until
you understand what they do. A typo in those steps could easily cause you endless grief.
Glad you go it working.
If those steps fixed your issue, then you mislead us with erroneous information earlier. You said that you had an empty efs folder earlier. But those steps would not have been necessary or effective if that was accurate. You must have had a missing efs partition. There is a considerable difference between an empty and nonexistent item and that datum would have led us to a solution.
On a normal phone, there would be an extant efs folder and it would be automatically mounted at boot. A missing folder strongly suggests that the wrong firmware or a flash error took place. Presumably by the previous owner.
Anyone using the make filesystem command mke2fs /dev/block/mmcblk0p12 should be very careful with typos as an incorrect address could cause major corruption that would be difficult to recover from.
.
Originally Posted by qwertyup88 View Post
Hi all, i've purchased an SM-G900F but there is a problem, it has rooted.
I've noticed those :
- I can see IMEI number (if i do #*06#) but my EFS folder is empty
- When turn on WiFi , the device will reboot automatically and appear " Factory Mode is On"
- i can make first call with sim , after i'm unable to call , but the 3G network works
- Whit ES File Explorer i've see that my efs folder is empty (But i can see my IMEI with secret code)
- In Device Info i see one time "Official Status" and another time "Personalized Status"
I'm tinking that old owner is a very st......d guy. Howewer these are all information :
Model : SM-G900F
Version : 4.4.2
BASEBAND : NE2
BUILD : NE2
What do you think? How i can solve the problems?
EDIT 1 : i've formatted from recovery , now it ask me to insert the samsung account of old owner...
Click to expand...
Click to collapse
Ive got almost the same problem, i bought my s5 to a friend who visited Philippines from Korea, He acquired the Phone in a Pawnshop in korea, i restore the phone and now it asked me for a password which i dont know, send it to the Technician, Force to delete the account (dont know how) but the problem is that, Phone has NO SIGNAL from then on, it has a NO signal above instead of a bar signal, EFS folder is empty, IMEI was null 000000000000000.
Anybody has the same experience? how can i fix this? please help.
Not perfectly solved .... After first call it don't connect to the network. Only after reboot it connect.
Any suggestions ?
qwertyup88 said:
Not perfectly solved .... After first call it don't connect to the network. Only after reboot it connect.
Any suggestions ?
Click to expand...
Click to collapse
could be a block imei by the operator? if it is POSSIBLE to solve? or it could be due however to the efs folder, or the firmware, modem?
edreab86 said:
Ive got almost the same problem, i bought my s5 to a friend who visited Philippines from Korea, He acquired the Phone in a Pawnshop in korea, i restore the phone and now it asked me for a password which i dont know, send it to the Technician, Force to delete the account (dont know how) but the problem is that, Phone has NO SIGNAL from then on, it has a NO signal above instead of a bar signal, EFS folder is empty, IMEI was null 000000000000000.
Anybody has the same experience? how can i fix this? please help.
Click to expand...
Click to collapse
it's a different problem , you have a null imei , in your case it's more difficult to resolve.
Originally Posted by qwertyup88
it's a different problem , you have a null imei , in your case it's more difficult to resolve.
Click to expand...
Click to collapse
As you can read i said, Ive got almost the same problem, i don't say we have the same problem. in a sense that previous owner account or the reactivation lock is present. sorry if i made a statement that bothers you, just looking for a solution.
hello guys, always about the efs folder I was reading this post: http://forum.xda-developers.com/showthread.php?t=2705524.
according to you through this tool is possiblile restore the backup I had done with samsung tool? I would like to try this because the efs folder on my sm-g900f is 23kb, but the backup I had done with samsung tool is 14mb !! what do you think?

[Q] Not registered on network SM-n9005

I am having a problem with my samsung galaxy note 3. I cannot send text or calls. I am having an error message "not registered on network".
Does anyone experience the same problem and know the fix? thanks a lot!
*#06#
Rojohn said:
I am having a problem with my samsung galaxy note 3. I cannot send text or calls. I am having an error message "not registered on network".
Does anyone experience the same problem and know the fix? thanks a lot!
Click to expand...
Click to collapse
you have your IMEI?? or lost it.
i had this problem once so i went into network settings and changed it to manual, selected the network im on and it said registered, switched it back to automatic and it was all sorted. either try that or check imei
nijom said:
you have your IMEI?? or lost it.
Click to expand...
Click to collapse
i have my imei. do you know how to fix the issue sir?
KevandLynds said:
i had this problem once so i went into network settings and changed it to manual, selected the network im on and it said registered, switched it back to automatic and it was all sorted. either try that or check imei
Click to expand...
Click to collapse
i've done that several times but still not working sir
Rojohn said:
i have my imei. do you know how to fix the issue sir?
Click to expand...
Click to collapse
Does your phone also remember the IMEI? Dial *#06# and check if the number matches the original IMEI. If it's NULL or starts with 0049, that's the cause.
If the IMEI is correct, try a different SIM.
Sent from my SM-N9005 using Tapatalk 2
ShadowLea said:
Does your phone also remember the IMEI? Dial *#06# and check if the number matches the original IMEI. If it's NULL or starts with 0049, that's the cause.
If the IMEI is correct, try a different SIM.
Sent from my SM-N9005 using Tapatalk 2
Click to expand...
Click to collapse
The IMEI is not null or it does not start with 0049. The IMEI on the phone and the box is correct is also correct. Also I've tried different SIM card but still getting the same message "not registered on network".
Rojohn said:
The IMEI is not null or it does not start with 0049. The IMEI on the phone and the box is correct is also correct. Also I've tried different SIM card but still getting the same message "not registered on network".
Click to expand...
Click to collapse
Dial *#1234# and tell me what appears.
Rojohn said:
The IMEI is not null or it does not start with 0049. The IMEI on the phone and the box is correct is also correct. Also I've tried different SIM card but still getting the same message "not registered on network".
Click to expand...
Click to collapse
1- First, put your SIM card into another phone to make sure it works fine?
2- Second, open the Debug ServiceMode Menu and do the following: DEBUG SCREEN > NAS INFORMATION > MM INFORMATION (capture screenshot #1) > Menu - Back > MM REJECT CAUSE (capture screenshot #2).
And post these screenshots for further checking.
To open the Debug ServiceMode Menu:
a- If you have root, install Phone INFO ★Samsung★ app > Menu > 'Secret Codes' > *#197328640# > 'Launch 0'.
b- If you don't have root, open the dialer > *#0011# > Menu - Back > Menu - Key Input > Q0 > wait... until Debug ServiceMode Menu appears.
I have a quite similar problem. My phone is a 3UK (service provider) phone. I have 2 sim cards with me (MTN & Etisalat). My phone (note3) works perfectly fine. I have even rooted to resolve this issue.
Now the issue is whenever i put my MTN sim card it works perfectly fine on Note 3, however the moment i enter my Etisalat sim it will work for 10-15 mins & will stop working. I will have network bars but when i try to make any outgoing or incoming call it does not work.
Also if i use the same etisalat sim with my iPhone 5s it works perfectly fine.
I have tried *#1234# & the information that i got is as below:
AP: N9005XXUDMJ6
CP: N9005XXUDMJ4
CSC: N9005H3GDMJ2
Some of my friends told me to upgrade it to Kitkat and that might resolve the issue but when i try to check for updates it says:
Your device has been modified. Software updates are not available.
Please let me know what is the solution
Note: I am new to android world. So please consider that..
anuragjiw said:
I have a quite similar problem. My phone is a 3UK (service provider) phone. I have 2 sim cards with me (MTN & Etisalat). My phone (note3) works perfectly fine. I have even rooted to resolve this issue.
Now the issue is whenever i put my MTN sim card it works perfectly fine on Note 3, however the moment i enter my Etisalat sim it will work for 10-15 mins & will stop working. I will have network bars but when i try to make any outgoing or incoming call it does not work.
Also if i use the same etisalat sim with my iPhone 5s it works perfectly fine.
I have tried *#1234# & the information that i got is as below:
AP: N9005XXUDMJ6
CP: N9005XXUDMJ4
CSC: N9005H3GDMJ2
Some of my friends told me to upgrade it to Kitkat and that might resolve the issue but when i try to check for updates it says:
Your device has been modified. Software updates are not available.
Please let me know what is the solution
Note: I am new to android world. So please consider that..
Click to expand...
Click to collapse
- What does it say when you make a call (incoming/outgoing)?
Please follow my above post and show screenshots for more checking.
- Regarding to upgrading it to KitKat, I doubt that will not fix your issue. However if you want to upgrade, you can flash the stock firmware via Odin. Use Phone INFO ★Samsung★ app > Menu > 'Firmware Browser' to download the correct firmware for your device, and flash it via Odin.
vndnguyen said:
- What does it say when you make a call (incoming/outgoing)?
Please follow my above post and show screenshots for more checking.
- Regarding to upgrading it to KitKat, I doubt that will not fix your issue. However if you want to upgrade, you can flash the stock firmware via Odin. Use Phone INFO ★Samsung★ app > Menu > 'Firmware Browser' to download the correct firmware for your device, and flash it via Odin.
Click to expand...
Click to collapse
When I try to make a call it just says dialing.. And when I try to get incoming call it says switched off..
I have tried to check for firmware in phone info and got N9005XXUGNH1 . Not sure if I should install that or not.
Attached are the NAS info & firmware in phone info.
ShadowLea said:
Does your phone also remember the IMEI? Dial *#06# and check if the number matches the original IMEI. If it's NULL or starts with 0049, that's the cause.
If the IMEI is correct, try a different SIM.
Sent from my SM-N9005 using Tapatalk 2
Click to expand...
Click to collapse
I have tried to check the IMEi. My imei is not null or starts with 0049.
anuragjiw said:
When I try to make a call it just says dialing.. And when I try to get incoming call it says switched off..
I have tried to check for firmware in phone info and got N9005XXUGNH1 . Not sure if I should install that or not.
Attached are the NAS info & firmware in phone info.
Click to expand...
Click to collapse
1- Please check and make sure if date/time setting is correct? Or it was not correct?
2- In ServiceMode Menu, select CALL END CAUSE and show the screenshot?
vndnguyen said:
1- Please check and make sure if date/time setting is correct? Or it was not correct?
2- In ServiceMode Menu, select CALL END CAUSE and show the screenshot?
Click to expand...
Click to collapse
i have checked the date & time which is perfect.
Do u want all these screenshots with my Etisalat sim inserted or any sim inserted?
When i click on Call end cause it comes back to Service mode.
anuragjiw said:
i have checked the date & time which is perfect.
Do u want all these screenshots with my Etisalat sim inserted or any sim inserted?
When i click on Call end cause it comes back to Service mode.
Click to expand...
Click to collapse
I asked for the date/time settings as in the MM REJECT CAUSE screenshot there is only log from the past. No any new log.
The screenshots you have shown are from the MTN sim card, right?
All info seem to be fine, I don't know why it cannot make or receive a call.
If possible, try to take screenshots for both SIM cards and compare to see if there is any differences.
EDIT: Oh NO, you need to show me screenshots from the sim card that doesn't work, NOT screenshots from the sim card that works fine.
vndnguyen said:
I asked for the date/time settings as in the MM REJECT CAUSE screenshot there is only log from the past. No any new log.
The screenshots you have shown are from the MTN sim card, right?
All info seem to be fine, I don't know why it cannot make or receive a call.
If possible, try to take screenshots for both SIM cards and compare to see if there is any differences.
EDIT: Oh NO, you need to show me screenshots from the sim card that doesn't work, NOT screenshots from the sim card that works fine.
Click to expand...
Click to collapse
Yes i have taken it from MTN sim which is working perfectly fine. Even my etisalat sim works for like 20 mins before it stops working.
Also i am downloading the N9005XXUGNH1 from Sammobile as you have mentioned before. But will it resolve the issue?
Attached is the screenshot of the same.
OK will attach the Etisalat sim & will upload in 5 mins
Attached are the screenshots of MM info, MM reject cause.
I am unable to open CALL END Cause. The moment i tap on it, it goes back to DEBUG Screen
I have tried to compare MM info, Reject cause with both the sim cards entering one by one & found out everything is same in Reject cause.
But MM info there is a slight change in MMC-MNC: 621-30 (MTN which works fine) & MMC - MNC: 621 - 60 (Etisalat which is not working)
LAC: 2ae8, RAC: 9 (MTN) & LAC: 7d15, RAC: 4
There are some changes in TMSI which is think is some sort of id.
Also want to know if I install N9005XXUGNH1 firmware on my samsung note 3 will this issue resolve?
anuragjiw said:
Attached are the screenshots of MM info, MM reject cause.
I am unable to open CALL END Cause. The moment i tap on it, it goes back to DEBUG Screen
Click to expand...
Click to collapse
From the screenshots it appears to be fine on both sim card.
You should take a screenshots when it becomes not working (after 20 min...)
vndnguyen said:
From the screenshots it appears to be fine on both sim card.
You should take a screenshots when it becomes not working (after 20 min...)
Click to expand...
Click to collapse
OK will send the screenshots once it stops working.. BTW thanks a lot in advance..
Also want to know if I install N9005XXUGNH1 firmware on my samsung note 3 will this issue resolve?
EDIT: I found out the problem but unable to find the solution.
Also want to inform you that I tried to select the network automatically once it stopped working & it worked for around 1-2 hours..
Suggest me what to do..

Help required verizon samsung s5 - activate hidden codes

Hello
I am using verizon sansung s5 900v on a network other than verizon. I wanted to know whether i can activate the hidden codes without rooting my set. Further is it possible to use other network 4g on this set. I have heard that i can only use other network 4g if i can enable hidden codes. I dont want to root my device. Any help would be highly appreciated
I may be wrong, but im pretty sure enabling them requires root. So to answer yout question, no you cannot without rooting.
Sent from my SM-G900A using Tapatalk
I don't think you need hidden codes just to use another network. You just need to input the correct APN for mobile data. Now, if the codes provide functionality to recharge on that network, etc, then you won't be able to. You can simply root and change the appropriate setting and unroot and it will stick, since the setting is in the EFS filesystem of the phone.
You only need to do step 2 from the OP here after rooting on the S5: http://forum.xda-developers.com/showthread.php?t=2303905
FWIW, I was recently in Puerto Rico and was able to buy and use a SIM card with 4G data just fine on my Verizon Galaxy S5 after inputting the correct APN information and selecting GSM/UMTS as the network or Global instead of LTE/CDMA. Verizon's handsets are usually unlocked by default.
If you have the latest software update, band 4 should already be enabled, barring there is some sort of SIM check to determine if there is a VZW sim card installed, but I doubt it.

[Q] Are NCK and SPCK codes stored in NVRam, and few more questions?

Hi,
Hi I have a few questions.
Are NCK and SPCK codes stored in NVRam?
How are they calculated, is it still based on IMEI or does the carrier generate the random numbers and inserts them in the phones NVRam or elsewhere?
I'm curious how do those famous box systems work like SigmaKey, DC Unlocker etc.? They send some data via DFU and unlock the phone, reset the unlock counter, fix empty IMEI, flash new firmware etc. I've managed to view some NVRam items via QXDM but I have no idea what I'm looking at, I understand some things of course but still.
Why do I get most of the time "NV Status Error Received: Item inactive" what does that mean?
Sorry if I'm asking dumb questions.
Thanks for your help!

Verizon Razr M on T-Mobile

Let me start off by saying I am a noob with these things. I also have searched a few of these forums and found steps by "cellzealot" on how to edit the NV Decimal settings to allow this phone to work on other carriers. I followed these steps and everything went through without any errors but the same issue is happening when I then try to get the phone to work on T-Mobile network. What happens is (after the above mentioned tutorial) I restart the phone, put my T-Mobile sim card in the phone. The phone then states "This SIM card is from an unknown source". In my settings menu under mobile networks In "preffered network type" I can choose Global, LTE/CDMA, or GSM/UMTS and nothing makes a difference. I dont know if it is in-fact unlocked and working and maybe this phone is malfunctioning or maybe I am just missing a step? Some additional info under settings:
About phone>Status>Network = "Unknown", Network type and strength = "No service", Mobile network state = "disconnected", my phone number = "unknown".
System Version: 183.46.15.XT907.Verizon.en.US
Android Version: 4.4.2
Any help is much appreciated, thanks in advance, you guys are awesome for your work here.

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