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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

[Q] [Help] There is any way to write imei in note 3 live demo unit phone....

i am a samsung reseller....
i got note 3 live demo unit phone.....
there is no imei in the phone....
it showing unknown imei
i root my phone.....and cheaked the ef folder and radio folder.....
the data/radio folder have no file and in efs/imei only one file and there is no nv_data.bin in system
i backup my efs folder using efsbackup app....it created backupimei folder in sdcard and there is two files efs.img n modem.bin
i registetered new imei for note 3...
i want to write it in this phone...
plz tell me how can i write imei in this phone....
i cheaked for z3x box but now there is no support for note 3 in z3x box....
plz tell me there is any way to write imei in this type of phone....
i inserted the idea sim in this samsung galaxy note 3 live demo unit......
it not showing signal bcoz of unknown imei......but showing idea system folder cheak it in attachment which i aatach....idea power...
i attach build.prop and also cscversion.txt which is in system folder
i also attaching efs.zip which i copied from root folder
plz tell me how to write imei ....
i tryed to backup orignal efs.img and modem.bin from other orignal samsung galaxy note 3 and restore in live demo phone after that i got the signal in live demo thats means it possible to write imei and get signal in this phone
but i want to write seprate imei no.
i registered new imei for this live demo phone ...
so plz any one help me.....
how can i write imei...or get signal...

Didn't think they had radio hardware.
Sent from my SM-N900T

It has all hardware just imei missing

IM looking foward to this t
But if you read my other post, i have problem, how did you flashed your live demo? becouse i flashed miune and he started kinda bootlooping...

XII_Future said:
IM looking foward to this t
But if you read my other post, i have problem, how did you flashed your live demo? becouse i flashed miune and he started kinda bootlooping...
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2461929
You could try and flash this rom as you are rooted it seems to fix anything lol

jaythenut said:
http://forum.xda-developers.com/showthread.php?t=2461929
You could try and flash this rom as you are rooted it seems to fix anything lol
Click to expand...
Click to collapse
Gona try it when i arrive home.
My hope is not lost.
Wierd thing is i instaled the stock SM-n9005 rom from my country and it wokred a week later tested on another live demo and he made it turn it on and after a couple of minutes, when searching for wifi networks he just crash and restart.
gona try it and i will tell you

How did u get demo phone in your hands?, was it stolen? i work in a phone shop and there is no way to get them unless you are official retailer plus they dont meant to be connected to cellular network....

IMEI alteration is illegal in most places and not allowed to be discussed in the forums.
Thread closed.
Towle
Forum Moderator

Really need help with S4 i9500

Hi everyone,
My S4 has lost its IMEI, and here is my situation.
I was using Prism v14 (http://forum.xda-developers.com/showthread.php?t=2537515), and it was totally fine. Last night, I tried to flash a new S6 port rom, this http://forum.xda-developers.com/galaxy-s4/i9500-develop/rom-aurora-s6-port-t3063408, and my fone lost its signal. The signal icon is still full, but it was only available at emergency calls. When i check, IMEI and Serial number were still there. I tried flashing the Prism v14 again, didnt fix it.
Then I took my fone to the care center and left it there for a few hours. When i come back, they told me that, they flashed it back to stock, and when i ceck, the IMEI was gone. They explained that, when I flashed the S6 port rom, the real IMEI was gone, it was only the fake IMEI from the rom that I saw (didnt know if this was true).
So now im asking for any possible help/solution. I was bad to forget backing up my EFS. So i wonder if I can use someone else's EFS to restore? If yes, it would be great if any one can share with me the EFS backup.
Thank you for reading and please excuse my bad English.

The EFS folder doesn't store the IMEI, despite having an IMEI folder, thus it won't help you. nv_data.bin also will not be found there, if my S4 is any indicator, but will be found in the hidden partitions.
You'll need to try flashing the baseband for your device again, and to do that you're going to have to download a copy of the ROM, which should be found on the forums here. Sometimes the baseband needs to be flashed twice for everything to properly work. I can only speculate why that is, but I believe it to be due to having two hidden partitions for the baseband. When the baseband is copied into the first partition it isn't copied into the second, resulting in a mismatch. Flashing the baseband a second time writes the baseband to the second partition, and everything functions correctly.
If flashing the modem again does not work, getting your IMEI back will require using methods that cannot be discussed here on XDA.

[Q] SM-N900 Null IMEI - Please Help

Hello!
I have a Galaxy Note 3 SM-N900 that I got from a friend. When my friend gave it to me he still had all his stuff on it so I did a factory reset on the phone. After I reset it the phone had a null IMEI and an unknown baseband. I'm pretty sure the problem is with the modem as I've flashed the stock firmware on the phone several times, I've tried almost all the custom roms on the phone, I've even flashed a whole boatload of different modems.
One of the times I was at school I pulled out my phone to change my music and I noticed it had signal. The phone had signal in different parts of the school and it also had a working IMEI and a baseband. I called 911 to test if the phone worked and the call went through as if the phone never had an issue to begin with. I haven't been able to get any signal on the phone since then. I don't know what else to do and I was hoping someone could help me here! Thanks in advance for those who try to help me!

IMEI Standard answer is to restore your backed up EFS folder as per the faqs and guides .
You may well have a lose connection/ sim within the phone if its intermittent on .

Sadly I don't have a backup of my EFS. I had reset my phone from the settings menu so I didn't think that would cause any problems. Is there anyway I can get a backup of an EFS for the sm-n900 or are there any other solutions?

Is there anyway I can get a backup of an EFS for the sm-n90
NO
You could try flashing a stock lollipop firmware .

Again, I've tried that multiple times already. My EFS folder should be fine if I got signal randomly. My sim contact isn't loose as when I got signal I didn't have a sim in the phone. I think the problem is my modem but if it is I don't even know which modem to use.

Modem for your location/ network .

How do I find the correct modem? I live in the US and my network is MetroPCS
Also, thank you for trying to help me. I honestly appreciate it.

Please help me anyone!

SMA520f IMEI Currupted to 0000x Help?

SMA520f IMEI Currupted to 0000x Help?
Hi guys i have a 2017 a5 which i rooted, however i reflashed stock android but the imei number has become Currupted to all zeros, i still have my original number printed under the battery, i remeber when i has a s2 this happened to me and there was a file i edited to add my imei number back to the phone, what is the best way for me to root and access the required file to add my original imei number back on my a7. Thank you.
kindest Regards.

kuljit55 said:
SMA520f IMEI Currupted to 0000x Help?
Hi guys i have a 2017 a5 which i rooted, however i reflashed stock android but the imei number has become Currupted to all zeros, i still have my original number printed under the battery, i remeber when i has a s2 this happened to me and there was a file i edited to add my imei number back to the phone, what is the best way for me to root and access the required file to add my original imei number back on my a7. Thank you.
kindest Regards.
Click to expand...
Click to collapse
Hi. I think you'll get more help if you ask your question in A-Series 2017 forum. There you'll also find TWRP and root for A520.
The files you refer to is probably the nv_data.bin in /efs. I've read it should be possible to restore imei somehow by using hex-editor but I have no experience in that. I also know some older models had a "hidden" menu where you could perform a NV restore but I don't know if it's possible on newer devices.
Anyway, I wish you best of luck to restore your IMEI and hope you'll find someone who can help you more.