Database Users

No signal - Can't connect to network

Hey guys I'm having a little problem with my GT-i9505. Problem being that I cannot get any reception on my device. It first occurred when I flashed a 4.3 rom over my 4.4.2 rom. I've tried switching to several different roms, both 4.3 and 4.4, yet none can fix the problem. I've tried to flash at least a dozen modem's in a bid to fix it. I searched for the modem suitable to my device and yet they still didn't work. I even tried to just install the official Samsung 4.4.2 rom via Odin, yet I'm still having the same problem. My baseband does change whenever I flash a new modem, but I still cant get a signal. When I try to search for a network in settings it lists the main carriers in the UK, but when I try to select mine (3 UK) it doesn't allow me to register, clicking select automatically yields the same results too. I've been searching for hours today on how to fix this, but just can't seem to find a method that helps. Any suggestions?

Have you tried manually entering the APN settings for 3 UK?
Sent from my GT-I9505 using XDA Premium 4 mobile app

How I repaired my S4
Worbit Jiminage said:
Hey guys I'm having a little problem with my GT-i9505. Problem being that I cannot get any reception on my device. It first occurred when I flashed a 4.3 rom over my 4.4.2 rom. I've tried switching to several different roms, both 4.3 and 4.4, yet none can fix the problem. I've tried to flash at least a dozen modem's in a bid to fix it. I searched for the modem suitable to my device and yet they still didn't work. I even tried to just install the official Samsung 4.4.2 rom via Odin, yet I'm still having the same problem. My baseband does change whenever I flash a new modem, but I still cant get a signal. When I try to search for a network in settings it lists the main carriers in the UK, but when I try to select mine (3 UK) it doesn't allow me to register, clicking select automatically yields the same results too. I've been searching for hours today on how to fix this, but just can't seem to find a method that helps. Any suggestions?
Click to expand...
Click to collapse
Take your S4 to a repair shop. Use Phil,s recovery when you re-root, install Omega ROM or another Samsung based ROM and, using Philz Touch 6 recovery, make a copy of your EFS file so if / when it happens again you can reinstall Omega or whichever ROM you installed and, using Philz recovery, you can reinstall your EFS file.
To make the backup, reboot recovery - backup and restore - custom backup - x (only in efs backup) - start custom backup - choose where to put the backup.
I use Omega as a reference because I know it will not screw up your EFS file.

HANDSY said:
Have you tried manually entering the APN settings for 3 UK?
Sent from my GT-I9505 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Hi thanks but I've tried that already and it still doesn't seem to work :/

amasiam said:
Take your S4 to a repair shop. Use Phil,s recovery when you re-root, install Omega ROM or another Samsung based ROM and, using Philz Touch 6 recovery, make a copy of your EFS file so if / when it happens again you can reinstall Omega or whichever ROM you installed and, using Philz recovery, you can reinstall your EFS file.
To make the backup, reboot recovery - backup and restore - custom backup - x (only in efs backup) - start custom backup - choose where to put the backup.
I use Omega as a reference because I know it will not screw up your EFS file.
Click to expand...
Click to collapse
Is there a way to fix this without having to spend anything? I literally can't afford to take it to a repair shop at this time

Also, my IMEI still shows as it should (corresponds with the IMEI on the back of my phone)

New efs
Worbit Jiminage said:
Also, my IMEI still shows as it should (corresponds with the IMEI on the back of my phone)
Click to expand...
Click to collapse
I had the same problem with my i9500 after flashing a Slim rom Perhaps you can get a copy of an efs file from someone with the same phone and then put it on your phone, or get the information you need from your phone company.

,
amasiam said:
i had the same problem with my i9500 after flashing a slim rom perhaps you can get a copy of an efs file from someone with the same phone and then put it on your phone, or get the information you need from your phone company.
Click to expand...
Click to collapse
im really really desperate to get mine fixed also with the same problem, my imei is ok but not getting any signal at all, no matter what i try or how many sims i've tried

dorian2kx said:
im really really desperate to get mine fixed also with the same problem, my imei is ok but not getting any signal at all, no matter what i try or how many sims i've tried
Click to expand...
Click to collapse
Did you try to remove the SIM CARD and switch off /on the phone to clean internal SIM register and to reinsert your SIM card again?
This worked for me once.

Nothing is wrong with my Sim slot cause when my sim card is in i can see my network name Wen I slide down status bar, only that no signal at all

what do you see
dorian2kx said:
Nothing is wrong with my Sim slot cause when my sim card is in i can see my network name Wen I slide down status bar, only that no signal at all
Click to expand...
Click to collapse
What do you see when you look at the phone status in settings - about phone?

,
This is what I see

dorian2kx said:
This is what I see
Click to expand...
Click to collapse
I now have exactly the same problem as you. I tried (once again) to install a new ROM on my i9500 (SOKP this time) and now (for the third time) my phone won't register on the network. I'll take it to China Unicom in the morning and let you know what happened. Unfortunately I don't speak Chinese very well but I will try to watch what the repair guy does. Perhaps it will be of some help.

I took the phone to China Unicom but the tech that repaired it last time wasn't there.

So ur problem is not sorted then?

Not yet
dorian2kx said:
So ur problem is not sorted then?
Click to expand...
Click to collapse
Not yet, but I am working on it. If and when I find an answer to the problem I will post it here.

amasiam said:
Not yet, but I am working on it. If and when I find an answer to the problem I will post it here.
Click to expand...
Click to collapse
did you find an answer in the end?

Unfortunately I didn't. I had to purchase a new baseband.
Sent from my GT-I9100G using XDA Free mobile app

.
amasiam said:
Unfortunately I didn't. I had to purchase a new baseband.
Sent from my GT-I9100G using XDA Free mobile app
Click to expand...
Click to collapse
What u mean by purchase a new baseband bro?

did you try searching for a signal outside?
i'm on three uk network and signal indoors is absolutely atrocious! (especially since they started "upgrading" to 4g networks - i had the exact same problem with t-mobile switched to becoming ee, i don't know why these companies are so intent on breaking networks which worked perfectly before by "upgrading" them).

[Fixed by claiming warranty] Note 2 N7100 EFS partition corrupt :(

Well something went really wrong and i have a corrupt IMEI/EFS partition.
so i followed this and this threads to restore my EFS partition.
But for some reason, my IMEI number / EFS partition is not being restored. Also my mobile network (not able to make and receive calls/ no mobile data) is not working.
Please help ASAP My N7100 is still under warranty but i tripped the knox counter.
Also i am able to go into bootloader mode but odin is not recognizing the device. I installed kies and it is updated.
edit - flashed official stock rom via mobile odin so that i can take it to samsung service centre. But as a last resort, still searching for methods to restore efs.
If anybody still has any suggestions or help, please please comment here.
Thank you vry much,..

A_U said:
Well something went really wrong and i have a corrupt IMEI/EFS partition.
so i followed this and this threads to restore my EFS partition.
But for some reason, my IMEI number / EFS partition is not being restored. Also my mobile network (not able to make and receive calls/ no mobile data) is not working.
Please help ASAP My N7100 is still under warranty but i tripped the knox counter.
Also i am able to go into bootloader mode but odin is not recognizing the device. I installed kies and it is updated.
Click to expand...
Click to collapse
Try this http://forum.xda-developers.com/showthread.php?t=2088809
Sent from my GT-N7100 using xda app-developers app

or try efs tool restore found here
put efs.img inside folder, open command prompt in the folder (shift + right button of mouse) and choose efs restore

cosmyndemeter said:
or try efs tool restore found here
put efs.img inside folder, open command prompt in the folder (shift + right button of mouse) and choose efs restore
Click to expand...
Click to collapse
i tried this tool but its not working..
the tool shows that there is some data transfer, but nothing is happening in my phone.
just to confirm..how much is the size of a properly working efs.img file ?
mine is around 20,048 Kb

It's 20 mb the image, besides I doubt that you can do anything without a XwZ BOX,which will cost you over $100 so my advice is that you take it to a dealer for a repair , that's if you don't have an EFS back up, however I'm not sure if the things are easier if you have a back up either, since it didn't work for me.

hagba said:
It's 20 mb the image, besides I doubt that you can do anything without a XwZ BOX,which will cost you over $100 so my advice is that you take it to a dealer for a repair , that's if you don't have an EFS back up, however I'm not sure if the things are easier if you have a back up either, since it didn't work for me.
Click to expand...
Click to collapse
wats a XwZ BOX ?
and i do have a backup..but for some reason i tried all the tools listed in this forum and none of the methods are working..
will the dealers be able to fix this issue ?
i live in india..how much will it cost to fix this mess ?

A_U said:
i tried this tool but its not working..
the tool shows that there is some data transfer, but nothing is happening in my phone.
just to confirm..how much is the size of a properly working efs.img file ?
mine is around 20,048 Kb
Click to expand...
Click to collapse
Just a question... How did you make the efs backup you have? Size should be correct
If you remember how did you make backup, it'd be easier...
Have you got just a backup? The file you're using could be a corrupted file...

A_U said:
edit - flashed official stock rom via mobile odin so that i can take it to samsung service centre. But as a last resort, still searching for methods to restore efs.
If anybody still has any suggestions or help, please please comment here.
Thank you vry much,..
Click to expand...
Click to collapse
Can you enter in download mode and flash via odin? I can send you .pit file and try repartiton and flash stock rom...
Sent from my GT-N7100 using xda app-developers app

A_U said:
wats a XwZ BOX ?
and i do have a backup..but for some reason i tried all the tools listed in this forum and none of the methods are working..
will the dealers be able to fix this issue ?
i live in india..how much will it cost to fix this mess ?
Click to expand...
Click to collapse
Yes the dealers can fix it, will cost somewhere between $30 To $40,at least that's the way the things are where I live. That is why I'm gonna keep my Note II on 4.1.2 until it dies away and will get THIS biggi and forget about Samsung alltogether,I have learned my lesson the hard way..
http://consumer.huawei.com/en/tablets/gallery/7d-501l-en.htm

A_U said:
Well something went really wrong and i have a corrupt IMEI/EFS partition.
Click to expand...
Click to collapse
dit you fixed your phone?
if no, just try this efs_fix and report
flash from recovery

I claimed the warranty..service centre guys fixed it for free.
They replaced the motherboard..costs around 9000 rupees in india without warranty
And guess wat ! They even reset my knox counter
My note 2 is now like a brand new device.
But thanks a lot guys; for all the help u provided in this thread...appreciated .

A_U said:
I claimed the warranty..service centre guys fixed it for free.
They replaced the motherboard..costs around 9000 rupees in india without warranty
And guess wat ! They even reset my knox counter
My note 2 is now like a brand new device.
But thanks a lot guys; for all the help u provided in this thread...appreciated .
Click to expand...
Click to collapse
i'm glad to hear that... :good:

zygzoo said:
dit you fixed your phone?
If no, just try this efs_fix and report
flash from recovery
Click to expand...
Click to collapse
u r the man thanks i have been working on 4 a week
thanks thanks thanks
my note 2 was dead on Samsung logo after i have update your zip it open but every one should be a wear cuz it is a Dummy version any one should not use it if he don't have a efs backup to restore

Need Help! Unknown Baseband, Null Imei

Hey guys,
So I am a beginner here, had no idea what I was doing and somehow I ended up messing up/bricking my S4. Long story short, after several days of messing around with it, I was finally able to take firmware through ODIN back to stock.
The issue is: The phone still does not recognize my sim card, when I check baseband it says Unknown, and IMEI is Null/Null. After further research, it seems that this has something to do with EFS. Unfortunately, I did not back up any such files since I have no real idea what I am doing.
Can anyone help me out with this? Galaxy S4- SGH-I337, NB1.
I just need the most simple fix to get phone working again.
Thanks.

Get a s4 from a friend and make a back up of the EFS. That's how I have heard people make it work

Maybe this can help you.

churapa said:
Maybe this can help you.
Click to expand...
Click to collapse
The only issue with that is they want me to back up and restore the EFS. I did not back up my EFS initially so I feel it is too late for that.

moiramd said:
Get a s4 from a friend and make a back up of the EFS. That's how I have heard people make it work
Click to expand...
Click to collapse
This may be hard, But if I did find an EFS for I337 online.. How would I go about putting this on my phone?

With EFS restorer Express

I thought each phone's efs were unique to that phone?

Airtioteclint said:
I thought each phone's efs were unique to that phone?
Click to expand...
Click to collapse
Yea thats what I thought, Which is why im confused.

tigerx88 said:
Yea thats what I thought, Which is why im confused.
Click to expand...
Click to collapse
Did you ever make a nandroid backup at all? I know twrp backs up the efs hopefully you have that somewhere.
There is an app in the playstore that will give you your efs info using other info. It's called meid converter. Good luck.

Airtioteclint said:
Did you ever make a nandroid backup at all? I know twrp backs up the efs hopefully you have that somewhere.
There is an app in the playstore that will give you your efs info using other info. It's called meid converter. Good luck.
Click to expand...
Click to collapse
Unfortunately, I dont think I backed up anything... not that I know of anyway.
What can I do with this app? Am I able to restore the baseband and IMEI?

tigerx88 said:
Unfortunately, I dont think I backed up anything... not that I know of anyway.
What can I do with this app? Am I able to restore the baseband and IMEI?
Click to expand...
Click to collapse
It will tell you your imei, and other info that you might be missing. From there you will have to try and figure out a way to reinput them manually. There was an app called anycut that worked great for things like this back in the gingerbread days. I'm sure there are ways to do it in terminal emulater now hopefully a more knowledgeable user can help out with that part.

Still cant figure out what I should do here. Any further ideas?

I have tried changing the firmware via Odin several times, and I am still having the same issue! Can someone please instruct on how to get the baseband and IMEI back if it was never backed up in the first place.
Thanks!!

tigerx88 said:
I have tried changing the firmware via Odin several times, and I am still having the same issue! Can someone please instruct on how to get the baseband and IMEI back if it was never backed up in the first place.
Thanks!!
Click to expand...
Click to collapse
Last bump before I give up on this

[Help]Note 3 N9005 busted IMEI/Cellnetwork

A few months back I tried to root my note3. Being a bad user at the time I messed it up and lost my IMEI. Went through every section of this forum but could not find a way to solve it until someone suggested I should use the sptbox. So, I went ahead to my local cellphone shop asked if he could do it and he did! Yaay he fixed it! One day later i find out that my IMEI is not the one that came along with the device. My phone is working perfectly but it does NOT connect to cell networks automatically. Every time I go into a place with low signal I have to go into setting and manually look for and select my service provider. This really bothers me and I would like to use the phone again! Haven't been using it for a very long time now. Thanks for reading.

Bump

Pls check ur storage if there is any efs backup file

mujaid714 said:
Pls check ur storage if there is any efs backup file
Click to expand...
Click to collapse
Thank you for your reply. Sadly I have not any EFS backups.

HELP ME, NO ONE IS REPLYING TO Me, I NEED ANSWERS D: Please, you are my last hope!!!

First, I have a Moto X style (XT1572) and it has the IMEI as 0! I need help on how to get it back, desperately, please help!
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Well, it seems like I have "No service" on my phone, and it says that my IMEI number is 0, and my IMEI/SV is 01. I tried flashing stock rom onto this when it happened. I can't afford a new one and the only way I can keep this phone is if I can fix it - is there any way I can make an IMEI then find the folder to put this back into my phone? I have no backup, but I do have a folder called GSII_repair and it has 2 files, efs_save.tar and efs_save.tar.gz, but I'm not sure it is of any use. I just recognized the efs as the efs folder. I can't find where my IMEI is at the moment, either, so I don't know whether it is completely deleted or just corrupted. I also have a Moto G 3rd gen, I may be able to get an IMEI file from that, and then change the hexadecimals to fit my phone's original IMEI which is on my box. So please tell me, am I completely runined, and my phone is destroyed, or is there a chance that I can fix it? Thanks for any replies. Guys please help me though, I need it!

try reflashing the stock rom, then let me know if it worked. and, btw, its only been 6 minutes as ince you posted.

simms22 said:
try reflashing the stock rom, then let me know if it worked. and, btw, its only been 6 minutes as ince you posted.
Click to expand...
Click to collapse
Thanks so much for the quick reply, I have tried re flashing stock rom back onto my device, as well as attempting to flash many custom roms onto it, with no luck. It is currently rooted, so if I need to access any files I am able to. My dad'll kill me if he finds out, but I know alot about phones and can follow any instruction.

AlertRobotdude said:
Thanks so much for the quick reply, I have tried re flashing stock rom back onto my device, as well as attempting to flash many custom roms onto it, with no luck. It is currently rooted, so if I need to access any files I am able to. My dad'll kill me if he finds out, but I know alot about phones and can follow any instruction.
Click to expand...
Click to collapse
have you tried your sim card in another phone, or an other sim card in your phone?

simms22 said:
have you tried your sim card in another phone, or an other sim card in your phone?
Click to expand...
Click to collapse
Sim works fine in other phones. I accidently fastboot erase all to my phone. It's gone. I need to restore it. Halp D:

AlertRobotdude said:
Sim works fine in other phones. I accidently fastboot erase all to my phone. It's gone. I need to restore it. Halp D:
Click to expand...
Click to collapse
Do you have the box or a sticker or anything with your original IMEI number on it?

posts with bad IMEI are troubling, to say the least..

AlertRobotdude said:
First, I have a Moto X style (XT1572) and it has the IMEI as 0! I need help on how to get it back, desperately, please help!
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Well, it seems like I have "No service" on my phone, and it says that my IMEI number is 0, and my IMEI/SV is 01. I tried flashing stock rom onto this when it happened. I can't afford a new one and the only way I can keep this phone is if I can fix it - is there any way I can make an IMEI then find the folder to put this back into my phone? I have no backup, but I do have a folder called GSII_repair and it has 2 files, efs_save.tar and efs_save.tar.gz, but I'm not sure it is of any use. I just recognized the efs as the efs folder. I can't find where my IMEI is at the moment, either, so I don't know whether it is completely deleted or just corrupted. I also have a Moto G 3rd gen, I may be able to get an IMEI file from that, and then change the hexadecimals to fit my phone's original IMEI which is on my box. So please tell me, am I completely runined, and my phone is destroyed, or is there a chance that I can fix it? Thanks for any replies. Guys please help me though, I need it!
Click to expand...
Click to collapse
Have you Made an full backup in TWRP, with also an backup of EFS?
Sent from my XT1572 using XDA-Developers mobile app

ill recommend that go to moto service center nearby and tell them issue
they will charge but to bargain as much as u can... this is only choice left or else say byebye to moto x.... and u won't be able to enjoy new Android N also...
my personal suggestion...
go to moto service center....

AlertRobotdude said:
Sim works fine in other phones. I accidently fastboot erase all to my phone. It's gone. I need to restore it. Halp D:
Click to expand...
Click to collapse
`fastboot erase all` is the bane of Moto devices, once it has been done if you don't have a backup of the EFS partition to restore you are pretty much screwed and need to get it reflashed by Moto.

I know this might sound a bit weird, but can't he grab an efs partition from another pure with the efs zeroed out and then he can re edit with his imei?

IMEI
I do still have my IMEI on my box, I know what it is. Is anyone out there willing to help me by copying their efs partition and then setting the IMEI value to 0, so I can change it and then put it back into my phone? I don't know, but it might work.