1)My phone is stuck into bootup cycle after I tried to fix imei null/null problem with this method:
victorator said:
copy the efs.img to your externalsdcard
open anroid terminal and type in:
su
(accept superuser prompt)
then type
dd if=/storage/extSdCard/efs.img of=/dev/block/mmcblk0p3 bs=4096
and reboot your phone
Click to expand...
Click to collapse
2) So, as I mentioned earlier - I can't connect to network due corrupt /efs/ and I tried a lot of methods to fix it. I don' t know what to do anymore, guys, I really need your help...
When I had this issue, I used clear efs in odin when pit flashing a prerooted stock rom onto it, then restoring the imei from an efs backup, if you dont have an efs backup you are kind of screwed. You can goto a phone repair shop to get them to hard write the IMEI back onto the phone, but depending on where you are from, it may be illegal as it comes under IMEI tampering. There are a variety of ways you can do it yourself but the contents of how to do it is forbidden for discussion in these forums as once again IMEI tampering is illegal, it is only legal in some countries to restore your own IMEI number, but once you know the method, you can do it with any.
Hi, be carefull on wiping efs! There are several tools to restore imei and mostly there is no need to wipe imei first.
Read carefully this thread: http://forum.xda-developers.com/showthread.php?t=2420881 and try dr.ketans multitool or that tool you did your efs backup.
Multitool can be found in dr.ketans signature.
Greetings
Related
Hello everyone I have a problem with note 2
he flashed the modem DMF1, DME4 and recognizes them with the restore efs folder but when I reboot is imei null and baseband unknown
Solutions?
héllo
in first sorry for my english :silly:
backup your efs file
I made a RAR file with the 2 modem inside
unzip it on the pc or the phone
put the zip files in the sd card
flash via recovery
DMF1_MODEM modem_XXDME4 rar
jioan62 said:
héllo
in first sorry for my english :silly:
backup your efs file
I made a RAR file with the 2 modem inside
unzip it on the pc or the phone
put the zip files in the sd card
flash via recovery
DMF1_MODEM modem_XXDME4 rar
Click to expand...
Click to collapse
thanks for the reply
I will try to flash them, she takes it but when I restart then returns null imei
I do not understand why
mysterionTM said:
thanks for the reply
I will try to flash them, she takes it but when I restart then returns null imei
I do not understand why
Click to expand...
Click to collapse
I already discuseed this, you need to restore your EFS backup after you flash the ROM that you made the backup with.
so flash XXDMF1 with ROM XXDME6 (or DXDMF1) and then restore EFS.
if that didn't work. then flash XXDME4 then OTA update will give you XXDMF1.
If you can't recieve OTA updates and you have Root, then tell me so I send you my XXDMF1 and DME6. (dr.ketan has DXDMF1 which you must try first).
After every flash restore efs then restart to see if it is fixed.
thethiny said:
I already discuseed this, you need to restore your EFS backup after you flash the ROM that you made the backup with.
so flash XXDMF1 with ROM XXDME6 (or DXDMF1) and then restore EFS.
if that didn't work. then flash XXDME4 then OTA update will give you XXDMF1.
If you can't recieve OTA updates and you have Root, then tell me so I send you my XXDMF1 and DME6. (dr.ketan has DXDMF1 which you must try first).
After every flash restore efs then restart to see if it is fixed.
Click to expand...
Click to collapse
if you can put him I would be grateful
but then there is no way to have permanent XXDME4?
With the other note 2 had managed to get it going with this I can not
@mysterionTM
hello
take this and flash via odin pc and updates via OTA or KIES but after do backup efs file
/N7100XXDMB6_N7100OXADMB1_XEF.zip
mysterionTM said:
if you can put him I would be grateful
but then there is no way to have permanent XXDME4?
With the other note 2 had managed to get it going with this I can not
Click to expand...
Click to collapse
first of all make sure your phone is rooted. then download mobile odin Pro (you need Pro version to maintain root or simply root again). then download this file:
http://www.mediafire.com/download/ena68zhyjhwpc78/update.zip
Edit: this will make your mobile a french mobile, so don't flash it just get someone to convert it to a modem.bin or modify it for your country.
now open mobile odin pro and flash the Stock ROM XXDME6.
after it finishes open mobile odin pro again and go to update file, and choose the file you downloaded above. then flash it.
you you have build number XXDME6 and buildbase XXDMF1
now restore EFS by using this app: https://play.google.com/store/apps/details?id=jackpal.androidterm&hl=en
Code:
Put your EFS file on your mobile (External SD Card is preferred on the Root of the Card, so its location should be /storage/extSdCard/efs.img).
name it efs.img for easier use (if it was an img file).
now in the terminal type this:
SU
then grant it superuser permissions.
then type this:
dd if=/storage/extSdCard/efs.img of=/dev/block/mmcblk0p3 bs=4096
it will show you numbers if it was done correctly.
then reboot your phone and everything should work correctly. Reboot again to make sure.
In case it didn't work, then Flash the DME6 ROM, it should come with DXDMF1 , then try restoring EFS again.
tell me what happens with you.
@mysterionTM
what is your configuration of your phone? (your rom)
I put thanks to you both
thethiny said:
first of all make sure your phone is rooted. then download mobile odin Pro (you need Pro version to maintain root or simply root again). then download this file:
http://www.mediafire.com/download/ena68zhyjhwpc78/update.zip
Edit: this will make your mobile a french mobile, so don't flash it just get someone to convert it to a modem.bin or modify it for your country.
now open mobile odin pro and flash the Stock ROM XXDME6.
after it finishes open mobile odin pro again and go to update file, and choose the file you downloaded above. then flash it.
you you have build number XXDME6 and buildbase XXDMF1
now restore EFS by using this app: https://play.google.com/store/apps/details?id=jackpal.androidterm&hl=en
Code:
Put your EFS file on your mobile (External SD Card is preferred on the Root of the Card, so its location should be /storage/extSdCard/efs.img).
name it efs.img for easier use (if it was an img file).
now in the terminal type this:
SU
then grant it superuser permissions.
then type this:
dd if=/storage/extSdCard/efs.img of=/dev/block/mmcblk0p3 bs=4096
it will show you numbers if it was done correctly.
then reboot your phone and everything should work correctly. Reboot again to make sure.
In case it didn't work, then Flash the DME6 ROM, it should come with DXDMF1 , then try restoring EFS again.
tell me what happens with you.
Click to expand...
Click to collapse
excellent guide compliments
but to have the modem DME4 there is no permanent way?
jioan62 said:
@mysterionTM
what is your configuration of your phone? (your rom)
Click to expand...
Click to collapse
DME6
your CSC ?
jioan62 said:
your CSC ?
Click to expand...
Click to collapse
ITVDMF1
go here
http://forum.xda-developers.com/showthread.php?t=1896696
jioan62 said:
go here
http://forum.xda-developers.com/showthread.php?t=1896696
Click to expand...
Click to collapse
I saw it but I was looking for a way to install the modem DME4
I do not understand why it goes and then restart imei returns null
should be something inherent in the nv_data.bin or nv_data.bin.md5
I was looking for a way to fix the folder efs
ITV N7100XXDME6 is this your rom ?
flash via odin pc
download this your stock rom http://hotfile.com/dl/229491057/c20905b/ITV-N7100XXDME6-20130605085627.zip.html
mysterionTM said:
I put thanks to you both
excellent guide compliments
but to have the modem DME4 there is no permanent way?
Click to expand...
Click to collapse
what do you mean permanent way? why would you need DME4 if you have a higher better one?
you can flash DME4 (it comes with ROM DMB4) modem alone and keep it permanently, but if your EFS backup was when you had anything other than DME4 then you can't use it anymore, you have to recover EFS everytime.
just use XXDMF1 (since your CSC is DMF1) and restore EFS. don't see any reason to use an old modem.
jioan62 said:
ITV N7100XXDME6 is this your rom ?
flash via odin pc
download this your stock rom http://hotfile.com/dl/229491057/c20905b/ITV-N7100XXDME6-20130605085627.zip.html
Click to expand...
Click to collapse
yes, it is my rom
but by flashing the stock rom does not solve anything......
thethiny said:
what do you mean permanent way? why would you need DME4 if you have a higher better one?
you can flash DME4 (it comes with ROM DMB4) modem alone and keep it permanently, but if your EFS backup was when you had anything other than DME4 then you can't use it anymore, you have to recover EFS everytime.
just use XXDMF1 (since your CSC is DMF1) and restore EFS. don't see any reason to use an old modem.
Click to expand...
Click to collapse
you're right but with the other note 2 that I had was in the same condition and and I managed to do it !
with this I can not ....
I was leaving the modem DMF1 and I was able to go to the modem DME4 without any problems
mysterionTM said:
yes, it is my rom
but by flashing the stock rom does not solve anything......
you're right but with the other note 2 that I had was in the same condition and and I managed to do it !
with this I can not ....
I was leaving the modem DMF1 and I was able to go to the modem DME4 without any problems
Click to expand...
Click to collapse
on your other phone , you had EFS backup on DME4. on this phone, your backup is on DMF1. DMF can read DME backups, but DME can't read DMF backups because samsung changed the EFS read type on DMF1. so once you go DMF1, your EFS partition is changed permanently!
thethiny said:
on your other phone , you had EFS backup on DME4. on this phone, your backup is on DMF1. DMF can read DME backups, but DME can't read DMF backups because samsung changed the EFS read type on DMF1. so once you go DMF1, your EFS partition is changed permanently!
Click to expand...
Click to collapse
you're wrong
I was only backup on DMF1 on the other note 2
I followed this procedure and are able to put DME4 :
1. make a copy of your EFS folder using root explorer and store it somewhere safe (on your SD card and external SD card should do it).
2. delete the EFS folder from the root of your phone using root explorer.
3. reboot the phone
4. open root explorer and go to the EFS folder (yes, it is still there! The Android OS has generated a new one for us) and delete the following files:
nv_data.bin
nv_data.bin.md5
nv.log
.nv_data.bak
.nv_data.bak.md5
nv_data.bin.bak
and the entire IMEI folder.
5.Now go to your backed up EFS folder on your sd card and copy the IMEI folder and the " .nv_data" file (note the dot) to your new EFS folder.
6.Make another copy of the ".nv_data" file in your new EFS folder. Rename one of them to "nv_data.bin" and the other one to "nv_data.bin.bak".
7. Connect your phone to your PC and start up EFS PRO. After your phone has been detected, press the "Repair nv data" button to correct the ownership and permissions.
8. Reboot your phone into recovery mode using the three botton combo and flash the original modem firmware (the modem.bin file that you extracted earlier) to your phone using Odin (use the "phone" button for the upload) or Heimdall (use the "radio" partition for the modem.bin file upload).
9. Reboot the phone normally and your IMEI number will be restored and you will be able to connect to your mobile network again
but on this note I can not!
mysterionTM said:
you're wrong
I was only backup on DMF1 on the other note 2
I followed this procedure and are able to put DME4 :
1. make a copy of your EFS folder using root explorer and store it somewhere safe (on your SD card and external SD card should do it).
2. delete the EFS folder from the root of your phone using root explorer.
3. reboot the phone
4. open root explorer and go to the EFS folder (yes, it is still there! The Android OS has generated a new one for us) and delete the following files:
nv_data.bin
nv_data.bin.md5
nv.log
.nv_data.bak
.nv_data.bak.md5
nv_data.bin.bak
and the entire IMEI folder.
5.Now go to your backed up EFS folder on your sd card and copy the IMEI folder and the " .nv_data" file (note the dot) to your new EFS folder.
6.Make another copy of the ".nv_data" file in your new EFS folder. Rename one of them to "nv_data.bin" and the other one to "nv_data.bin.bak".
7. Connect your phone to your PC and start up EFS PRO. After your phone has been detected, press the "Repair nv data" button to correct the ownership and permissions.
8. Reboot your phone into recovery mode using the three botton combo and flash the original modem firmware (the modem.bin file that you extracted earlier) to your phone using Odin (use the "phone" button for the upload) or Heimdall (use the "radio" partition for the modem.bin file upload).
9. Reboot the phone normally and your IMEI number will be restored and you will be able to connect to your mobile network again
but on this note I can not!
Click to expand...
Click to collapse
oh, you followed the folder method! then yeah it works, but not recommended as it messed up permissions.
I was speaking about the mmcblk0p3 method.
how to know which modem i need? Im on stock firmware 4.4.2, Malaysia. Have the imei issue/corrupted efs and no backup
Hi
My wife bought a Note 2 (N7100) in China, second hand. I thought it was stock, so I tried to update it manually (official update) with Odin. But of course it was rooted and with some chinese ROM (my guess since I saw chinese charachters).
That didn't work so I proceeded to install a custom rom. After trying over and over, my phone would not recognise the SIM no longer (it worked before I started out with this mess). I have basically tried installing multiple roms (4.1, 4.3, 4.4), Odin fails when trying offical roms, multiple modem zips etc. Dont know what to do.
Problem is that I can not get the PCode because there is no connection with the SIM. IMEI is on the back of the phone, but trying *272*#IMEI-code# doesn't give me nothing because i just get fail. Trying to download a official rom from china over baidu.com, but until now no luck. What would you do? Right now its a phablet with wifi, nothing else. Anyone have an idea how to fix this little mess I put myself into?
Flash custom recovery and TRY THIS method in ADB.
Confirm if they have the same efs address though, but I think it's the same.
cz4r3n said:
Flash custom recovery and TRY THIS method in ADB.
Confirm if they have the same efs address though, but I think it's the same.
Click to expand...
Click to collapse
Looks like my /efs/ partition is zero, nill nothing. What to do? Use it as a wifi phablet? I dont have linux, only mac, so I cant do these two steps, but I guess it does not matter since I can not open the efs.img file
linux# losetup /dev/loop0 efs.img
linux# fsck /dev/loop0
So the phone is impossible to fix now - right? /efs/ folder on phone is emtpy.
Found my IMEI number for this phone on Google Dashboard. Is it possible to restore the EFS image only using that?
mikasjoman said:
Found my IMEI number for this phone on Google Dashboard. Is it possible to restore the EFS image only using that?
Click to expand...
Click to collapse
Did you ever have a backup on your efs?If yes, then restore it.there are so many threads on how to restore your efs.
---------- Post added at 07:55 PM ---------- Previous post was at 07:44 PM ----------
mount efs in adb.
adb shell
su
mount
dd if=/dev/block/mmcblk0p3 of=/sdcard/mmcblk0p3.bin
Code:
dd if=/dev/zero of=/dev/block/mmcblk0p3
dd if=/sdcard/mmcblk0p3.bin of=/dev/block/mmcblk0p3
mmcblk0p3.bin
That is a no Or maybe. I made a copy to my harddrive with those instructions you linked to. Could I email the efs.img file to you and you check if its usable? Maybe it is just corrupt. I really don't know how to figure it out on this mac. If it was empty it should not be the 21 MB it is.
I did a "cat" on the efs.img file and it seems full of info.
Being the poor student I am, I wont be able to buy a new phone in some time
I bought an unlocked samsung captivate glide. At first it worked normally but then the sim card was not recognized any more.
I started studying what the causes of this could be.
Baseband is shown as "unknown" and when i put *#06# IMEI says "null/null".
Now I suppose it is a problem with the files in the EFS folder.
When i open nav_bin file with hex editor it is all blank, all the fields have "ff" and the last ones "00"
I need to restore the EFS folder in order to have at least a generic IMEI, isn't it wright? How can i manage to do this?
I don’t have any backup of the original files; anyway i don’t care having a generic IMEI to begin with.
Any help is appreciated
Any way of restoring baseband and/or IMEI ??
margram said:
Any way of restoring baseband and/or IMEI ??
Click to expand...
Click to collapse
You can try flashing the phone to stock with Odin...
My phone was working fine before battery drained and it get switched off. But when i restarted the phone imei was null.
I have efs backup of 4.3 ( mj9 modem) but now i am on 4.4.2 . I tried restoring it but did not worked .
any help please..
sachinwadhwa46 said:
My phone was working fine before battery drained and it get switched off. But when i restarted the phone imei was null.
I have efs backup of 4.3 ( mj9 modem) but now i am on 4.4.2 . I tried restoring it but did not worked .
any help please..
Click to expand...
Click to collapse
try what i did here buddy. . post #3512
http://forum.xda-developers.com/showthread.php?p=57661153#post57661153
do it at tour own risk. goodluck!
edong23 said:
try what i did here buddy. . post #3512
http://forum.xda-developers.com/showthread.php?p=57661153#post57661153
do it at tour own risk. goodluck!
Click to expand...
Click to collapse
Thank you for your reply. Please help me to do this step wise
sachinwadhwa46 said:
Thank you for your reply. Please help me to do this step wise
Click to expand...
Click to collapse
this method works for me, but I am not sure if it will work for you. I have to warn you that I am not a dev, I am just a basic android user. I came up with this idea out of desperation because my phone cannot receive and make calls for almost 4 days. so do this at your own risk.
note:
* make sure your phone is rooted.
* make a copy of your old efs backup and all your important files in your computer or in a flash drive.
1. copy and write on a piece of paper your imei # which will be found at the back of your phone. it is 15 digit
2. copy your efs.img (not the folder that contain the efs image) to your internal storage. it is about 20mb. if there are two files then copy both.
3. connect to wifi and go to playstore and then download and install the IMEI Tool N7100 by Dr Ketan
4. download and install xposed installer and make sure to install update.
5. go to this thread and download and install imei changer
http://forum.xda-developers.com/xposed/modules/xposed-imei-changer-t2847187
make sure to activate it in exposed. then reboot your phone.
6. using ES File Explorer or any file manager with root privelege, go to /efs and delete all files
7. open imei changer then input your imei # (the one that you copied at the back of your pbone) then save. to make sure that your imei has changed dial *#06#. check if your imei if its the one you have written. if not go again to imei changer and change then make sure to save.
8. open IMEI tool by dr. ketan and restore efs backup. it will ask for root privelege so click grant.
9. after restoring efs, reboot to recovery and wipe cache and dalvik then reboot. check if you have data connection.
10. if its not working then go to recovery and make a full wipe and install new touchwiz rom (i used DN4 when I did this, but its up to you whatever you like). and repeat the steps.
* that's all I did mate. there is no scientific explanation about the process that I made, but when I did those things, my phone is working fine again. hopefully it will work for you brother. Good luck and God bless!
edong23 said:
this method works for me, but I am not sure if it will work for you. I have to warn you that I am not a dev, I am just a basic android user. I came up with this idea out of desperation because my phone cannot receive and make calls for almost 4 days. so do this at your own risk.
note:
* make sure your phone is rooted.
* make a copy of your old efs backup and all your important files in your computer or in a flash drive.
1. copy and write on a piece of paper your imei # which will be found at the back of your phone. it is 15 digit
2. copy your efs.img (not the folder that contain the efs image) to your internal storage. it is about 20mb. if there are two files then copy both.
3. connect to wifi and go to playstore and then download and install the IMEI Tool N7100 by Dr Ketan
4. download and install xposed installer and make sure to install update.
5. go to this thread and download and install imei changer
http://forum.xda-developers.com/xposed/modules/xposed-imei-changer-t2847187
make sure to activate it in exposed. then reboot your phone.
6. using ES File Explorer or any file manager with root privelege, go to /efs and delete all files
7. open imei changer then input your imei # (the one that you copied at the back of your pbone) then save. to make sure that your imei has changed dial *#06#. check if your imei if its the one you have written. if not go again to imei changer and change then make sure to save.
8. open IMEI tool by dr. ketan and restore efs backup. it will ask for root privelege so click grant.
9. after restoring efs, reboot to recovery and wipe cache and dalvik then reboot. check if you have data connection.
10. if its not working then go to recovery and make a full wipe and install new touchwiz rom (i used DN4 when I did this, but its up to you whatever you like). and repeat the steps.
* that's all I did mate. there is no scientific explanation about the process that I made, but when I did those things, my phone is working fine again. hopefully it will work for you brother. Good luck and God bless!
Click to expand...
Click to collapse
I followed the same procedure but did not worked.
One more thing i would like to mention that in recent past i got my complete pcb replaced by samsung service center but imei was same. and the backup of efs which i did was on previous pcb/motherboard. could that be the reason i am not able to restore imei?
I need experts review and help to resolve my issue last night i am update my phone s20 ultra G988B/ds to its original software everything working fine except network i was using root phone it was fine on all networks but after updating my imei status goes to NG(not good) sim accepted phone but shows emergency calls both imei shoes but network not working plz give me suggestions and issue solution. I am again root my phone but still not working networks plz help
S20 ultra imei status NG
Why you experts not solving my issue no comments at all?
Bro i've posted same kind of post just now i hope someone replies soon otherwise i'll try z3x software or chimera and let you know about the results, i think if your imei is not corrupted then cert file will do the wonder.
well hey everyone same issue i have s20 plus phone was rooted and i flash the firmware and now imei is NG i trid the chimera tool but no luck if u find any fix please help me.
did you guys resolve it ?
i may have an idea
Any fix
do you guys even search before asking?
First, do a TWRP backup, all partitions including efs & modem.
Open the root explorer app, open the efs folder, delete the files named nv_data.bin
, nv_data.bin.md5 & the folder called imei. Then open twrp, wipe all partitions. Flash the latest firmware with Odin.
That solution work???
juda iskariotsky said:
do you guys even search before asking?
First, do a TWRP backup, all partitions including efs & modem.
Open the root explorer app, open the efs folder, delete the files named nv_data.bin
, nv_data.bin.md5 & the folder called imei. Then open twrp, wipe all partitions. Flash the latest firmware with Odin
Click to expand...
Click to collapse