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[Q] Help! Phone not receiving any signal and missing softwares!

Hello!
Am using Samsung Galaxy S i9003 running on android 2.3.6
My phone is not fetching any cellular signal even though sim card is inserted in it. It is asking me to insert sim card when I check for mobile networks. After a thorough check up what I found is the IMEI number is missing. It is showing blank pop up when I check in for IMEI (*#06#).
Also what I've found is:
PDA: I9003XXKPQ
PHONE: Unknown
CSC: I9003SERKPQ.
So I thought this cellular signal problem could be due to missing "phone" file in the software of the operating system. So I flashed a custom ROM (Jelly Bam). I was successful in flashing but am still facing the same problem. No IMEI and "PHONE"
I flashed it back to official stock ROM and I still see the same. No IMEI and versions as:
PDA: I9003XXKPQ
PHONE: Unknown
CSC: I9003SERKPQ.
NOTE : I Have flashed the Stock ROM finally with ODIN with all the four files by appropriately selecting them.
Is this happening due to software error or is this a hardware problem?
Why the IMEI number is missing?
Please help me.

you EFS folder is missing,restore any CWM Backup,or restore your EFS

MR.Volkf said:
you EFS folder is missing,restore any CWM Backup,or restore your EFS
Click to expand...
Click to collapse
efs folder is present. it is not missing.

shashivydyula said:
efs folder is present. it is not missing.
Click to expand...
Click to collapse
the data present in your efs folder which includes files like "nav_data.bak" "nv_data.bin" they assign IMEI number to your phone... these files might be missing or corrupted... better try any previous restore to fix this problem

Tried that!
mustafahussain said:
the data present in your efs folder which includes files like "nav_data.bak" "nv_data.bin" they assign IMEI number to your phone... these files might be missing or corrupted... better try any previous restore to fix this problem
Click to expand...
Click to collapse
I guess you are correct but the restored file on the sd card is corrupted one, I guess. Because the same problem occurred after restoring the previous backups. Can I get any custom restores online for efs? I don't want any warranty for my mobile, I just need it working. In case if it works on a fake IMEI by flashing a custom EFS it is fine with me.

shashivydyula said:
I guess you are correct but the restored file on the sd card is corrupted one, I guess. Because the same problem occurred after restoring the previous backups. Can I get any custom restores online for efs? I don't want any warranty for my mobile, I just need it working. In case if it works on a fake IMEI by flashing a custom EFS it is fine with me.
Click to expand...
Click to collapse
you are on froyo right?? if yes then you simply flash another stock rom of base froyo or gingerbread through ODIN and this should restore your IMEI

mustafahussain said:
you are on froyo right?? if yes then you simply flash another stock rom of base froyo or gingerbread through ODIN and this should restore your IMEI
Click to expand...
Click to collapse
No. Am on gingerbread. I've tried Jelly Bam though. But it is of no use. So I reverted back to gingerbread official ROM.

shashivydyula said:
No. Am on gingerbread. I've tried Jelly Bam though. But it is of no use. So I reverted back to gingerbread official ROM.
Click to expand...
Click to collapse
hmmm... actually stepping up for some custom roms based on CM 9 and above solve the IMEI problem.... I recommend you to first download a stock gingerbread ROM and flash it via ODIN... if it doesnt work then download a CM9 based ROM (4.0.4) wipe data/cache/dalvik/ and flash it via CWM recovery then wipe cache/dalvik... it should work and there is like 30% chance to get your IMEI back

But my main point is how u lost ur IMEI suddenly?? You must have flashed something which lead to missing IMEI.

Will Try this once!
mustafahussain said:
hmmm... actually stepping up for some custom roms based on CM 9 and above solve the IMEI problem.... I recommend you to first download a stock gingerbread ROM and flash it via ODIN... if it doesnt work then download a CM9 based ROM (4.0.4) wipe data/cache/dalvik/ and flash it via CWM recovery then wipe cache/dalvik... it should work and there is like 30% chance to get your IMEI back
Click to expand...
Click to collapse
I will let you know when am done!
Thank you!

vishal24387 said:
But my main point is how u lost ur IMEI suddenly?? You must have flashed something which lead to missing IMEI.
Click to expand...
Click to collapse
No. Once I gave it to my friend. He came up with this issue. He has no knowledge about all these. He said it just lost signal and stopped working!

shashivydyula said:
No. Once I gave it to my friend. He came up with this issue. He has no knowledge about all these. He said it just lost signal and stopped working!
Click to expand...
Click to collapse
IMEI is lost when you delete/edit efs data or when you flash a firmware ,but the chances of loss of IMEI are during firmware flashing are very slim

shashivydyula said:
No. Once I gave it to my friend. He came up with this issue. He has no knowledge about all these. He said it just lost signal and stopped working!
Click to expand...
Click to collapse
Frankly speaking ur frnd must have flashed something which caused loss of IMEI. Anyway in internel memory card look for backup folder. Tell us whether it is there or not.

vishal24387 said:
Frankly speaking ur frnd must have flashed something which caused loss of IMEI. Anyway in internel memory card look for backup folder. Tell us whether it is there or not.
Click to expand...
Click to collapse
Backup folder is present but it is empty!

shashivydyula said:
Backup folder is present but it is empty!
Click to expand...
Click to collapse
yeah your "nv_data.bin" is missing... did you flashed a CM9 (4.0.4) rom?

mustafahussain said:
yeah your "nv_data.bin" is missing... did you flashed a CM9 (4.0.4) rom?
Click to expand...
Click to collapse
No!
Could you please provide me the download link to that?

shashivydyula said:
No!
Could you please provide me the download link to that?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1449649
download this ROM... wipe data,wipe cache and wipe dalvik.. flash the ROM.. wipe cache and wipe dalvik and reboot and see if got back your IMEI

mustafahussain said:
http://forum.xda-developers.com/showthread.php?t=1449649
download this ROM... wipe data,wipe cache and wipe dalvik.. flash the ROM.. wipe cache and wipe dalvik and reboot and see if got back your IMEI
Click to expand...
Click to collapse
I will let you know when am done!:good:

mustafahussain said:
http://forum.xda-developers.com/showthread.php?t=1449649
download this ROM... wipe data,wipe cache and wipe dalvik.. flash the ROM.. wipe cache and wipe dalvik and reboot and see if got back your IMEI
Click to expand...
Click to collapse
not working!
No IMEI yet
:crying:

shashivydyula said:
not working!
No IMEI yet
:crying:
Click to expand...
Click to collapse
dont worry you still have a couple of options left but to try them you should be calm so that you dont further mess with your efs data.
try thisLink 1
and if you still fail try this Link 2
I hope you recover your IMEI.GoodLuck

### --- XXDME4 modem --- ### fix IMEI - -unknown modem

on the XXDME6 base - you can not install old modems,
because it will cause for unknown modem & imei status.
Solution flash - XXDME4 modem
XXDME4 modem
flash via TWRP / CWM
sorry, if not responding to requests but I switched to Samsung Galaxy S 4

FIX IMEI
If YOU type *#06# it says imei null.
Also another thing - that there is no baseband version
#######################################################
the fix
open your SGN II - under the battery you'll find IMEI (in my case)
write - on a paper
turn on GPS
on the dialer - *#*#82043036#*#*
next go to GPRS -> WRITE IMEI ->Reboot

Will it allow modem downgrade, ie DME6>DME4>Stock 4.1.1?
I want to downgrade to 4.1.1 from present DME6 (UK BTU N7100)

rajil.s said:
Will it allow modem downgrade, ie DME6>DME4>Stock 4.1.1?
I want to downgrade to 4.1.1 from present DME6 (UK BTU N7100)
Click to expand...
Click to collapse
i did not try that !!!
but do a backup and try !

czar22 said:
FIX IMEI
If YOU type *#06# it says imei null.
Also another thing - that there is no baseband version
#######################################################
the fix
open your SGN II - under the battery you'll find IMEI (in my case)
write - on a paper
turn on GPS
on the dialer - *#*#82043036#*#*
next go to GPRS -> WRITE IMEI ->Reboot
Click to expand...
Click to collapse
have you tried it ?
i am asking in context of lost imei.
if a phone has got his efs corrupted and one doesn't have a backup, will it work ?

czar22 said:
i did not try that !!!
but do a backup and try !
Click to expand...
Click to collapse
Ok, i tried this.
1. Had DME6 on my device.
2. Flashed your DME4 modem which was successfull. The IMEI was still present.
3. Flashed Stock 4.1.1 BTU. IMEI was lost and had emergency calls
4. Flashed DME4 again, and IMEI came back. So i am back on 4.1.1 which i wanted.
The dial string ...8204... doesnt work on my N7100 UK BTU, although i didnt need it because i got imei back.
Successful..........
I had two copies of my efs. I reflashed my efs in 4.1.1 (XXALJ2 modem) and I got the imei back. Everything back to normal. Phew...

the method is when u lost your imei go to efs folder by using root explorer and copy that efs folder to your eternal sd card (i mean backup efs folder to sd card)
then flash a stock rom via odin then your phone still not have service and imei (maybe fake imei is 0499...)
root your stock rom, install root explorer and copy efs backup folder from your sd card then paste with the efs folder in your root directory
=> reboot and your imei is back
i have successful with this method

grilleld said:
the method is when u lost your imei go to efs folder by using root explorer and copy that efs folder to your eternal sd card (i mean backup efs folder to sd card)
then flash a stock rom via odin then your phone still not have service and imei (maybe fake imei is 0499...)
root your stock rom, install root explorer and copy efs backup folder from your sd card then paste with the efs folder in your root directory
=> reboot and your imei is back
i have successful with this method
Click to expand...
Click to collapse
But how can you get efs back, when the backup you made was from a corrupt efs? Maybe you just didn't flash the latest modem when you were on me6, and your imei wasn't corrupted at all.
Sent from my Galaxy Note II using xda premium

UtkarshGupta said:
But how can you get efs back, when the backup you made was from a corrupt efs? Maybe you just didn't flash the latest modem when you were on me6, and your imei wasn't corrupted at all.
Sent from my Galaxy Note II using xda premium
Click to expand...
Click to collapse
no your efs folder is still there with your original imei but the modem has hide or can use it ( so backup it in to sd card ,i mean copy it)
flash your stock XXDME6 BASE WITH XXDME4 kernel in there package, dont change any modem
then use root explorer delete your efs folder (it will show delete fail but all sub folder and files in efs have been delete)
=> reboot your phone ,now android will creat neccessary file for efs folder ,copy your backup efs folder from sdcard to root efs folder (replace all)
reboot and u will get your imei

rajil.s said:
Ok, i tried this.
1. Had DME6 on my device.
2. Flashed your DME4 modem which was successfull. The IMEI was still present.
3. Flashed Stock 4.1.1 BTU. IMEI was lost and had emergency calls
4. Flashed DME4 again, and IMEI came back. So i am back on 4.1.1 which i wanted.
The dial string ...8204... doesnt work on my N7100 UK BTU, although i didnt need it because i got imei back.
Successful..........
I had two copies of my efs. I reflashed my efs in 4.1.1 (XXALJ2 modem) and I got the imei back. Everything back to normal. Phew...
Click to expand...
Click to collapse
Let me understand, for I have installed the MF6 without backup my EFS (and now I stuck with this rom):
You installed a previous stock rom with odin, installed that attached modem (ME4) and all right... but you then installed ANOTHER stock rom with odin and was all right?

You will need efs backup made prior to installing MF2. Without it you will not be able to revert to stock with working modem.

i have updated my ROM based on DME6, I have a nandroid backup of my prev ROM DME1 based, tried to restore it. Baseband/modem got restored but EMEI invalid, its start with 0049. It displays my network logo but cant register to network.
This means Im stuck with DME4 modem. Hope our Devs here would be able to resolve this issue with the new released firmwares.
Sent from my GT-N7100 using Tapatalk HD

No luck
czar22 said:
FIX IMEI
If YOU type *#06# it says imei null.
Also another thing - that there is no baseband version
#######################################################
the fix
open your SGN II - under the battery you'll find IMEI (in my case)
write - on a paper
turn on GPS
on the dialer - *#*#82043036#*#*
next go to GPRS -> WRITE IMEI ->Reboot
Click to expand...
Click to collapse
Running Stock (BTU-N7100XXDME6-20130603102621) Rooted with TWRP recovery.
Lost my IMEI and modem functionality when I rooted with Note 2 toolkit :crying:
Read this and flashed DME4 modem via TWRP
I get null/null when doing *#06#
nothing happens when I input *#*#82043036#*#* and if I hit call it obviously just tells me 'No mobile network is available'
Tried flashing the modem 3 times now...what am I doing wrong? Any Ideas?
Thanks in advance
Pav

Is it possible to revert to a older modem? Such as dxdlk5?

PavPev said:
what am I doing wrong? Any Ideas?
Click to expand...
Click to collapse
I think you got yourself in a tuttifruti mix not knowing what are doing,not having efs backup and flashing a bunch a things trying to fixit.
Now you have to go back to your last working build and stay there until samsung release a fix so we could flash withaout worries.
Good luck to you sir.

bervin said:
Is it possible to revert to a older modem? Such as dxdlk5?
Click to expand...
Click to collapse
No luck with that one but thanks for the suggestion!
Cruzfire said:
I think you got yourself in a tuttifruti mix not knowing what are doing,not having efs backup and flashing a bunch a things trying to fixit.
Now you have to go back to your last working build and stay there until samsung release a fix so we could flash withaout worries.
Good luck to you sir.
Click to expand...
Click to collapse
That's pretty much exactly it But I tried reverting back to stock (the one in my previous post) and the modem still isn't working

PavPev said:
No luck with that one but thanks for the suggestion!
That's pretty much exactly it But I tried reverting back to stock (the one in my previous post) and the modem still isn't working
Click to expand...
Click to collapse
worked for me:
full wipes and flash the malaysia dmf2 rom with odin
better to backup everything before doing, but my note ii (n7100) is working now, though I can't change my modem and install another rom.

UtkarshGupta said:
have you tried it ?
i am asking in context of lost imei.
if a phone has got his efs corrupted and one doesn't have a backup, will it work ?
Click to expand...
Click to collapse
"next go to GPRS -> WRITE IMEI ->Reboot"
how to go gprs?

czar22 said:
on the XXDME6 base - you can not install old modems,
because it will cause for unknown modem & imei status.
Solution flash - XXDME4 modem
XXDME4 modem
flash via TWRP / CWM
Click to expand...
Click to collapse
You saved many hours of my life!!!!! Flashed your modem and radio(calling etc.) is now working:good: Good job

Wow thanks to this. I just fixed my no network registered issue bt flashing this modem! Thanks a bundle!
Sent from my GT-N7100 using xda premium

Q3000 no network after complete format n Flash.

I'm facing strange problem with my Q3000 after flashing custom ROM.
I will explain once again if looking at my problem can anyone provide me solution.
1) I tried to flash custom rom and while flash something happened n my phone goes off.
2) I format EMMC using SP_Flash_Tool_v5.1420.03 and then flash stock ROM KK.
3) After flashing Phone boot but with no IMEI no and no network.
4) I then used MTK Droid Root & Tools V2.5.3 and replace with correct IMEI no. and confirmed using softwares as well as *#06#
5) but still no network.
6) I do Memory Test using SP_Flash_Tool_v5.1420.03 and found ERROR: NAND Flash was not detected!
Please help in resolving this issue. I tried all possible help from this forum like flashing stock ROM JB n KK but no luck.

shinde_bharat said:
I'm facing strange problem with my Q3000 after flashing custom ROM.
I will explain once again if looking at my problem can anyone provide me solution.
1) I tried to flash custom rom and while flash something happened n my phone goes off.
2) I format EMMC using SP_Flash_Tool_v5.1420.03 and then flash stock ROM KK.
3) After flashing Phone boot but with no IMEI no and no network.
4) I then used MTK Droid Root & Tools V2.5.3 and replace with correct IMEI no. and confirmed using softwares as well as *#06#
5) but still no network.
6) I do Memory Test using SP_Flash_Tool_v5.1420.03 and found ERROR: NAND Flash was not detected!
Please help in resolving this issue. I tried all possible help from this forum like flashing stock ROM JB n KK but no luck.
Click to expand...
Click to collapse
Format and flash this rom by sp flash tools. http://storage.googleapis.com/otas/2014/Smartphones/Aquaris_5.7/2.0.0-20140912-0911-5.7-bq-FW.rar

drsarkar said:
Format and flash this rom by sp flash tools. http://storage.googleapis.com/otas/2014/Smartphones/Aquaris_5.7/2.0.0-20140912-0911-5.7-bq-FW.rar
Click to expand...
Click to collapse
Thanks for quick reply. I tried this but still no network.

shinde_bharat said:
I'm facing strange problem with my Q3000 after flashing custom ROM.
I will explain once again if looking at my problem can anyone provide me solution.
1) I tried to flash custom rom and while flash something happened n my phone goes off.
2) I format EMMC using SP_Flash_Tool_v5.1420.03 and then flash stock ROM KK.
3) After flashing Phone boot but with no IMEI no and no network.
4) I then used MTK Droid Root & Tools V2.5.3 and replace with correct IMEI no. and confirmed using softwares as well as *#06#
5) but still no network.
6) I do Memory Test using SP_Flash_Tool_v5.1420.03 and found ERROR: NAND Flash was not detected!
Please help in resolving this issue. I tried all possible help from this forum like flashing stock ROM JB n KK but no luck.
Click to expand...
Click to collapse
make sure all drivers must install & backup ur imei before doing anything
1. press power & vol down button (if phone doesn't detect)
format whole flash using sptool ...in format tab
then flash stock rom
if no imei error occur restore ur imei from backup
2. if no sim /no network error occur in custom rom
flash only sec_ro file using sptools
then network comes & then restore imei from backup
xolo q3000 full stock rom
http://forum.xda-developers.com/q3000/orig-development/xolo-q3000-kitkat-4-4-2-007-rom-t3080902

shinde_bharat said:
Thanks for quick reply. I tried this but still no network.
Click to expand...
Click to collapse
Imei?

Sujay95 said:
Imei?
Click to expand...
Click to collapse
yes i reentered the IMEI using engineering mode but still no luck.

Have you recovered???

No baseband and IMEI when I flashed custom rom(D850)

Hello guys,
I have d850 model.When I flashed custom rom, my baseband is unknown and imei is null.
I don't have this problem stock kk and lollipop kdz.
How can I solve this problem ?

NoobyUser said:
Hello guys,
I have d850 model.When I flashed custom rom, my baseband is unknown and imei is null.
I don't have this problem stock kk and lollipop kdz.
How can I solve this problem ?
Click to expand...
Click to collapse
That would mean you lost your EFS. Unless you backed it up theres not getting it back.

hyelton said:
That would mean you lost your EFS. Unless you backed it up theres not getting it back.
Click to expand...
Click to collapse
I am backing up efs and restore.Nohing happens.

NoobyUser said:
I am backing up efs and restore.Nohing happens.
Click to expand...
Click to collapse
So you backed it up before this happened?? You have to have backed it up before. Doing it not won't work.

hyelton said:
So you backed it up before this happened?? You have to have backed it up before. Doing it not won't work.
Click to expand...
Click to collapse
I take backup efs in stock rom and I flash custom rom after I restored efs.

NoobyUser said:
I take backup efs in stock rom and I flash custom rom after I restored efs.
Click to expand...
Click to collapse
But did you backup before you lost your imei?

hyelton said:
But did you backup before you lost your imei?
Click to expand...
Click to collapse
Yes, I did.

IMEI & Baseband gone.

I accidentally flashed Batmen rom and now my imei and baseband is gone. Though , I have efs.img file not sure what software/method I used to make that backup. So, how do I make it work again? does restoring stock rom using odin resolve the issue or how do I restore that efs.img ?

sohojmanush said:
I accidentally flashed Batmen rom and now my imei and baseband is gone. Though , I have efs.img file not sure what software/method I used to make that backup. So, how do I make it work again? does restoring stock rom using odin resolve the issue or how do I restore that efs.img ?
Click to expand...
Click to collapse
Hey there, flashing stock will restore but if you want to flash the efs image you need to install TWRP.

cooltt said:
Hey there, flashing stock will restore but if you want to flash the efs image you need to install TWRP.
Click to expand...
Click to collapse
How do flash that efs.img, same as rom like restore>efs.img ? I didnt flashed stock yet, still in custom rom, without any imei and calls.

sohojmanush said:
How do flash that efs.img, same as rom like restore>efs.img ? I didnt flashed stock yet, still in custom rom, without any imei and calls.
Click to expand...
Click to collapse
Flash efs with TWRP.
https://www.getdroidtips.com/backup-and-restore-efs-partition/

cooltt said:
Flash efs with TWRP.
https://www.getdroidtips.com/backup-and-restore-efs-partition/
Click to expand...
Click to collapse
Somehow solved the issue, by flashing stock from using Odin. But, then, it ran in to issue, showing dead android icon. after that flashed TWRP using Odin and flashed "no-verity-opt-encrypt". No, it's working with the correct ime but incorrect s/n.

sohojmanush said:
Somehow solved the issue, by flashing stock from using Odin. But, then, it ran in to issue, showing dead android icon. after that flashed TWRP using Odin and flashed "no-verity-opt-encrypt". No, it's working with the correct ime but incorrect s/n.
Click to expand...
Click to collapse
You need to edit "serial_no" according to yours(create a new file without extension if you don't have one)