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(Help) No Phone Signal Galasy S Plus after flash

Hi XDA i have flashed recovery-clockwork-5.5.0.4-ariesve.tar and then new beta ICS rom, after reboot no phone signal and no show IMEI but WIFI work.. please help me. thz

I'm not a samsung user but try to push the phone.apk and dialer.apk and contacts.apk from the orginal rom maybe it'll help

i have restore original firmware and nothing, no signal. i'm not sure but what about EFS Data restore without backup ?

Got the same problem here. Tried to install different modems but it didn't help. I'm out of ideas at the moment.

how to install different modems ? install another rom ?

restore efs backup if imei is lost
if you dont even know how to flash another modem maybe you shouldnt have tampered with ur phone to begin with
and if u do not have efs backup maybe you shouldnt have messed with ur phone since its first thing you do after you have rooted your phone

android not display the base band version and imei and i not have a backup... what i can do. pls help me

http://forum.xda-developers.com/showthread.php?t=832791
here is something about losing efs data.

another problem of device is the Random Reboot or Auto Shutdown...have any idea for this ??

Magic DEVICE Imei and Baseband restored but sim card DIE

You have to reflash a GB-Rom,i.e. JVU. Then everything will be ok. And after that flash a ICS-Rom which not makes disappear the IMEI and then, without wiping you may flash this special ICS-Rom which caused that issue. Now everything should be ok. That was the experience I have made.

[Q] SGS4 i9505 Lost Some EFS Data

Hi, I have been playing around with an i9505 and thought I had made a proper backup of my EFS data. Unfortunately that was not the case and I have only backed up the EFS partition, neglecting the others.
I then later chose the *#9090# : "DM/DUN/RmNet over HSUSB " option and allowed it to wipe my EFS data, believing I had a suitable backup.
Upon restoring said backup, my base band is unrecognized and I have no IMEI. The phone also fails to receive any signal.
My question is, will it be possible to recover from this mistake or should I consider it a brick?

d3v147 said:
Hi, I have been playing around with an i9505 and thought I had made a proper backup of my EFS data. Unfortunately that was not the case and I have only backed up the EFS partition, neglecting the others.
I then later chose the *#9090# : "DM/DUN/RmNet over HSUSB " option and allowed it to wipe my EFS data, believing I had a suitable backup.
Upon restoring said backup, my base band is unrecognized and I have no IMEI. The phone also fails to receive any signal.
My question is, will it be possible to recover from this mistake or should I consider it a brick?
Click to expand...
Click to collapse
You can try to use Kies 3 on your laptop to reload the stock firmware.Then put your phone in Download mode (with the phone completely off, press and hold the Volume Down and Power buttons) and connect it to your PC. The OS will install the necessary drivers (this may take a few minutes) and then you can select Tools -> Emergency firmware recovery in the Kies software. It'll prompt you for the model number (enter it in CAPS) and IMEI (both found under the battery) and then it'll download the correct firmware and then install it .If the problem still persist try to follow this thread and it might help you, and if still doesnt fix Go to service center for a repair. Have a nice day.

Thank you for you prompt reply. I have tried using both versions of Kies and have not been able to do an emergency recovery.
I have since managed to get the "Qualcomm NV Tools" of "EFS professional" to work and I have confirmed that my IMEI is still present on the phone.
When i try to uses the *#9090# hidden code, all I get is a blank screen. My belief is that the modem is simply not communicating with the phone anymore due to the option I chose "DM/DUN/RmNet over HSUSB". The message I saw was:
"Warning : Must read below guide All Communication between AP/CP- will be disconnected !
To return the normal mode, you must download efs12.tar file !
All NV data will be erased !
Really you want to use RmNET ?"
I'd really like to be able to undo this if anyone can help.

Dial *#1234# and tell me what appears pls :fingers-crossed:

Typing *#1234* gives:
Version
--------------
AP : I9505XXUEMK9
CSC : I9505H3GEMJ2

Apologies for the double post. I am wondering if I backup the NV data from another working i9505 with "Qualcomm NV Tools" and then write that to my phone if that will fix the problem?
I have made a backup of my existing NV and examined the resulting text file. It would appear that nearly everything is blank, except for a couple of fields, one of which I identified as IMEI (Block 00550 / 0x0226). This field is read only which explains why I still have an IMEI.
I would be extremely grateful if somebody could send me their backup, minus the 00550 (0x0226) block so I can avoid having to convince a friend to let me play with their phone.

I have been further investigating this problem and have found that the modem is not communicating with the phone. I believe this has something to do with NV items greater than 65536. This would make sense, as the usual NV backup tools do not save/restore items with a higher address.
Of particular interest to me is :
69674^"HSUSB RMNET Over HS Core"^"USB*"
But the versions of QXDM that are available do not seem to be able to read/write this value. I am hoping there is a command of some form to do this but I am unsure.

Joku1981 said:
Dial *#1234# and tell me what appears pls :fingers-crossed:
Click to expand...
Click to collapse
You're funny dude.
Sent from my GT-I9505 using XDA Premium HD app

Hi mate,
As soon as you clear EFS folder all data IMEI SIm LOck and EFS utils are gone. What u need to do just install new EFS with utils via Odin3 downloader. I have done this way many times. We call this EFS12 file for recovery, buy IMEI and CAL data will be erased. As soos as you get 0/01 IMEI you can try repaur IMEI for example Z3X BOX

exprxp said:
Hi mate,
As soon as you clear EFS folder all data IMEI SIm LOck and EFS utils are gone. What u need to do just install new EFS with utils via Odin3 downloader. I have done this way many times. We call this EFS12 file for recovery, buy IMEI and CAL data will be erased. As soos as you get 0/01 IMEI you can try repaur IMEI for example Z3X BOX
Click to expand...
Click to collapse
Where do I download this "EFS12" file? I have searched high and low.

d3v147 said:
Where do I download this "EFS12" file? I have searched high and low.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2567133
NOTE 3 - Fix soft bricked.rar must be downloaded and extracted Then You have FULL EFS12 + ZEROED NVDATA

exprxp said:
http://forum.xda-developers.com/showthread.php?t=2567133
NOTE 3 - Fix soft bricked.rar must be downloaded and extracted Then You have FULL EFS12 + ZEROED NVDATA
Click to expand...
Click to collapse
I imaged all the block devices on the phone with the ones in the rar file you suggested and still: "Baseband unknown".

d3v147 said:
I imaged all the block devices on the phone with the ones in the rar file you suggested and still: "Baseband unknown".
Click to expand...
Click to collapse
I kept backups of all the images replaced and restored them as I had trouble loading recovery. I doubt images from another (different) phone were a great idea.
Recovery is working again but some image said there was not enough space on device to restore !?!

d3v147 said:
I kept backups of all the images replaced and restored them as I had trouble loading recovery. I doubt images from another (different) phone were a great idea.
Recovery is working again but some image said there was not enough space on device to restore !?!
Click to expand...
Click to collapse
Hi
You can try this way for GT-I9505 imei repair.
http://forum.xda-developers.com/showthread.php?p=51156577

[Q] SGS4 i9505 Lost Some EFS Dats
I did the same with SGS3 GT-I9305. *#9090# corrupted my S3 efs, imei and baseband.
How did you resolve your issue?
Please help!!!
Thanks

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!

samsung s7 edge lost imei info?

hi all
my partners s7 edge was running very slow so i flashed the stock firmware yesterday and now its lost IMEI information. i have followed guide on here and tried all 3 steps (reflashing rom etc) however whenever i try backing up EMS it fails saying there is no EMS file, she cannot make any calls as its not registering on the network. please can someone help with this???

rumel2011 said:
hi all
my partners s7 edge was running very slow so i flashed the stock firmware yesterday and now its lost IMEI information. i have followed guide on here and tried all 3 steps (reflashing rom etc) however whenever i try backing up EMS it fails saying there is no EMS file, she cannot make any calls as its not registering on the network. please can someone help with this???
Click to expand...
Click to collapse
Hey, I have the same problem, I guess that there's not solution yet.

Try here:
https://forum.xda-developers.com/showthread.php?t=3379516
Sent from my SM-G935F using Tapatalk

Do you a have a efs.img backup ? Or any kind of IMEI/EFS/RADIO backup ?
I had the same problem I flashed the stock ROM and somehow I lost my IMEI info, I tried everything and I was even thinking about buying a z3x box but then I decided to do a very risky move , I completely deleted all the EFS related files/info and reflashed again but now I was not able to boot because I always sent me to recovery mode saying that :
"E:Failed To Mount /EFS (invalid argument )"
Then all I did was installing TWRP and rooted my SM-G935F and then I placed my efs.img backup on my internal SD CARD and went on recovery launched the terminal and wrote this :
dd if=/sdcard/efs.img of=/dev/block/platform/155a0000.ufs/by-name/EFS
Then I wrote reboot and it finally my phone was booting and I recovered my IMEI and was able to use my phone normally.
This only works if you have a backup of your EFS, and even if you do is risky , but I did it because I lost all hope and was accepting the fact that my phone would just become a useless wifi only device .

So there is not a fix yet for this problem ?

I have a problem on my s7edge instead. If i have valid imei i'am almost always in emergency calls, and when the signal comes back does not go into mobile data connection. With the wi fi no problem.Can someone help me i'am going crazy.!

IMEI, Network Signal and Baseband is misssing
Re: IMEI, Network Signal and Baseband is misssing
IMEI, Network Signal and Baseband is misssing
Hi
I am ready to donate if any expert can help me to restore IMEI.
I am using SM-N9500 samsung note 8 model - hongkong version, i frequently change the roms.. when last time i tried to install a custom rom i lost IMEI. i am getting error like IMEI-unknown, baseband- unknown, no network and sim cards not working..
i tried installing stock rom, custom roms, it was installing successfully but only baseband, signal and IMEI are not working. i didnt even back up my EFS folder. So, kindly help me to get back my IMEI.
I have installed stock rom, still no IMEI. now i rooted my mobile and taken EFS backup. is it enough? if yes, pls suggest me the next steps. I also tried installing combination firmware, though is not working, installation was successful and also i am able to see the factory binary logo, after which it will switch off automatically and boot loops. everytime it will open factory binary and immediately it will switch off automatically..
Build number - R16NW.N9500ZHS4CRJ1