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...
Related
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
Sometime ago I flashed one version of Lollipop to the newest one, but my phone during the process corrupted the efs file and now sometimes I flash a different version of Marshmallow 30b my efs partition gets corrupted. If someone can explain me how to restore to factory the efs file for not having these problems it will help me a lot.
i have same problem my imei number is null and Baseband version unknown.
I have T-Mobile G3 (d851). I think I have corrupted my EFS partition while flashing a custom ROM. Now I dont have Baseband Ver, IMEI, IMEI SV, or any other number. My Simcard is also not working.
I had backups with EFS, which I tried restoring. Doing that didnt bring IMEI or any information back, nor my simcard is working.
Any help with what to do?
root device
Then enable usb debbuging
Go command promot in adb.
commands are:
adb shell
su
setprop sys.usb.config diag,adb
You will get LGE Mobile Phone. You will need drivers for it.
Then start adb again. At androidbrick.com imei restore part 2 you have instructions for it.
Erase 0p21, 0p22 and 0p24 (i'm not sure. You have commands on androidbrick.com)
Then start emmc download app from qualcomm. Add COMx port, go software download and restore file from .qcn. you can find and download qcn file on gsm forum. Search for d855 qcn backup. You will net to modify imei with hex. - for example HxD Editor. All imeis in g3 are starting from 08 3A XX XX XX XX XX XX XX.
By the way this will unlock simlock in any phone
How can I restore IMEI of my phone. I also don't have any backup of IMEI. Tried a lot of methods but most of them are old and not working. Do we have a chance here?
Edit;
I restored some other imei using qpst and .qcn file but now I it has become a mess to write my own imei by coding in qcn file.
is your problem solved?
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
Hi,
I have my 5T rooted with Magisk and TWRP recovery.
I've upgrated from OOS 9 to official OOS 10.0.1 flashing with TWRP as usual. I did a full nandroid backup before.
Everything went fine until I noticed that during the booting of the phone after the flashing, it didn't ask for the SIM code as it used to. And once the mobile had fully restarted, I could see 2 new icons on top of the screen picturing the 2 sim cards that can be contained in a OnePLus 5T. They were striken through, as if not present, when I had My SIM in Slot 1. And so, no mobile signal, no data network.
I tried switching Sim cards with another mpbile. My SIM worked fine in the other mobile and the other SIM was not recognized by my mobile.
I've read that I could be facing problems of damaged EFS. So I tried restoring through TWRP the EFS partition from the Nandroid I had done before. Nothing. Same thing with the modem partition. Nothing.
I tried then to restore the EFS from a safety backup that I had using Fastboot. Nothing.
I could still try to restore the full nandroid backup done at the beginning, but I forgot to take out pin protection code before taking the Nandroid, and I've read somewhere that it could be an issue after restoring the system. I might not be able to restart the phone and be obliged to factory reset, witch I would really like to avoid. And anyway, if restoring with Fastboot did not work, I wonder if the full restore would change anything.
Anyway, anybody has a magic idea about might be happening? A little help please??
Same problem!
I'm having the same problem. I have my 5T rooted with Magisk and TWRP recovery.
I've upgrated from OOS 9 to official OOS 10.0.1 flashing with TWRP as usual. I did a full TWRP backup before, including my EFS partition.
I'm seeing this too:
>"once the mobile had fully restarted, I could see 2 new icons on top of the screen picturing the 2 sim cards that can be contained in a OnePLus 5T. >They were striken through, as if not present, when I had My SIM in Slot 1. And so, no mobile signal, no data network."
I did the same thing and had the same no result.
>I've read that I could be facing problems of damaged EFS. So I tried restoring through TWRP the EFS partition from the Nandroid I had done >before. Nothing. Same thing with the modem partition. Nothing.
I'm looking for a solution too.
I came across this: https://forum.xda-developers.com/oneplus-5t/help/baseband-imei-lost-t3834334 and this: https://www.getdroidtips.com/how-to-repair-and-fix-imei-baseband-on-oneplus-5t-a5010/
I've been reluctant to try and rebuild the QCN file, but it might work.
Working on this
So I'm working on reprogramming the IMEI using the Qualcomm tools. I was able to use them to back up my phone and see the it still has the correct MEID.
However, the .gcn file linked to below isn't accepted, with a weird error: "The file model MSM8998 does not match the phone model MSM8998. Please select a file for the MSM8998."
I'm not sure what it isn't liking. In theory, I think I could just put the IMEI numbers into the QPST programming tool, but I'm not certain where they would go and the correct format for them (with the chksm at the end or not?).
This is as far as I've gotten. I'm looking for an alternate .qcn or .qcnx (which is the kind the tool generates when saving files).
rootlessabroad said:
I'm having the same problem. I have my 5T rooted with Magisk and TWRP recovery.
I've upgrated from OOS 9 to official OOS 10.0.1 flashing with TWRP as usual. I did a full TWRP backup before, including my EFS partition.
I'm seeing this too:
>"once the mobile had fully restarted, I could see 2 new icons on top of the screen picturing the 2 sim cards that can be contained in a OnePLus 5T. >They were striken through, as if not present, when I had My SIM in Slot 1. And so, no mobile signal, no data network."
I did the same thing and had the same no result.
>I've read that I could be facing problems of damaged EFS. So I tried restoring through TWRP the EFS partition from the Nandroid I had done >before. Nothing. Same thing with the modem partition. Nothing.
I'm looking for a solution too.
I came across this: https://forum.xda-developers.com/oneplus-5t/help/baseband-imei-lost-t3834334 and this: https://www.getdroidtips.com/how-to-repair-and-fix-imei-baseband-on-oneplus-5t-a5010/
I've been reluctant to try and rebuild the QCN file, but it might work.
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Click to collapse
Hi
I've found a code (*#06#) in a page that gives you the MEID. It worked for me. Hopefully, I have the correct MEID too. The code for the IMEI did not show anything. I'll check the lynks you posted later today.
Thanks for sharing!!
PS. I can not include the lynk to codes page as I'm too junior a member and XDA forums won't let me.
rootlessabroad said:
So I'm working on reprogramming the IMEI using the Qualcomm tools. I was able to use them to back up my phone and see the it still has the correct MEID.
However, the .gcn file linked to below isn't accepted, with a weird error: "The file model MSM8998 does not match the phone model MSM8998. Please select a file for the MSM8998."
I'm not sure what it isn't liking. In theory, I think I could just put the IMEI numbers into the QPST programming tool, but I'm not certain where they would go and the correct format for them (with the chksm at the end or not?).
This is as far as I've gotten. I'm looking for an alternate .qcn or .qcnx (which is the kind the tool generates when saving files).
Click to expand...
Click to collapse
So I've tried te rebuild the QCN file. But my issue is that I can't make the ADB comunicate with my mobile. It is as the mobile was not plugged in?? The usb debugging is activated. I can browse the mobile memory from the computer. But the ADB doesn't lynk with the mobile; when you type adb devices, it says List of devices attached and nothing after. Any idea what might be happening?
What about you rootlessabroad? could you fix it?
rootlessabroad said:
So I'm working on reprogramming the IMEI using the Qualcomm tools. I was able to use them to back up my phone and see the it still has the correct MEID.
However, the .gcn file linked to below isn't accepted, with a weird error: "The file model MSM8998 does not match the phone model MSM8998. Please select a file for the MSM8998."
I'm not sure what it isn't liking. In theory, I think I could just put the IMEI numbers into the QPST programming tool, but I'm not certain where they would go and the correct format for them (with the chksm at the end or not?).
This is as far as I've gotten. I'm looking for an alternate .qcn or .qcnx (which is the kind the tool generates when saving files).
Click to expand...
Click to collapse