Lost phone function on N5120....FIXED

[GaryTG]

Following a recent custom ROM flash, my N5120 had 3 faults:
1. No phone function (No IMEI, No SIM, No Network, No Baseband......nothing)
2. No Bluetooth
3. It rebooted itself after about 20 minutes (unless it was exercised eg running a timer/countdown app)

I tried many, many suggestions from this forum and elsewhere. I tried 3 local phone fixing shops (mostly "No fix, No fee"). All to no avail. I had just about resigned myself to selling it as faulty on EBay. Last night I thought I would have one last try. Clearly the main problem was to do with the EFS. And I had previously taken a FULL backup.

Step 1:
Flash back to an early stock ROM (eg 4.4.2 N5120XXSDQA2 in my case)

Step 2:
Assemble the following (backup) files and transfer them to your tablet....
efs_backup.img [This will be restored into partition mmcblk0p3 .....see below]
radio_backup.img [Ditto partition mmcblk0p13]
radio-cdma_backup.img [Ditto partition mmcblk0p12]
m9kefs1_backup.img [Ditto partition mmcblk0p4]
m9kefs2_backup.img [Ditto partition mmcblk0p5]
m9kefs3_backup.img [Ditto partition mmcblk0p6]
....you may not really need all of these but I had them as a set.

Step 3:
On your tablet, go to Google Play Store and get/install/run "Partitions Backup" by Wanam (Thank you Wanam!!!!).

Step 4:
Using Partitions Backup, click on the box left of EFS (on my system this line was highlighted in yellow).
Press the 3 dots (top right) and select, "Restore a partition" and choose the default method and the correct partition location
After "Success" is indicated, repeat this process for each of the other files making sure you select the correct partition location

Step 5:
Reboot
...and smile

This method worked for me. I hope it might help someone else who loses their phone function.

I have copied the files I (or you) might need here:
https://drive.google.com/file/d/1Z93DZnLrBXwZuPBb91M0bLE7aBXoWa2V/view?usp=sharing

 

[Giowi]

Following a recent custom ROM flash, my N5120 had 3 faults:
1. No phone function (No IMEI, No SIM, No Network, No Baseband......nothing)
2. No Bluetooth
3. It rebooted itself after about 20 minutes (unless it was exercised eg running a timer/countdown app)

I tried many, many suggestions from this forum and elsewhere. I tried 3 local phone fixing shops (mostly "No fix, No fee"). All to no avail. I had just about resigned myself to selling it as faulty on EBay. Last night I thought I would have one last try. Clearly the main problem was to do with the EFS. And I had previously taken a FULL backup.

Step 1:
Flash back to an early stock ROM (eg 4.4.2 N5120XXSDQA2 in my case)

Step 2:
Assemble the following (backup) files and transfer them to your tablet....
efs_backup.img [This will be restored into partition mmcblk0p3 .....see below]
radio_backup.img [Ditto partition mmcblk0p13]
radio-cdma_backup.img [Ditto partition mmcblk0p12]
m9kefs1_backup.img [Ditto partition mmcblk0p4]
m9kefs2_backup.img [Ditto partition mmcblk0p5]
m9kefs3_backup.img [Ditto partition mmcblk0p6]
....you may not really need all of these but I had them as a set.

Step 3:
On your tablet, go to Google Play Store and get/install/run "Partitions Backup" by Wanam (Thank you Wanam!!!!).

Step 4:
Using Partitions Backup, click on the box left of EFS (on my system this line was highlighted in yellow).
Press the 3 dots (top right) and select, "Restore a partition" and choose the default method and the correct partition location
After "Success" is indicated, repeat this process for each of the other files making sure you select the correct partition location

Step 5:
Reboot
...and smile

This method worked for me. I hope it might help someone else who loses their phone function.

I have copied the files I (or you) might need here:
https://drive.google.com/file/d/1Z93DZnLrBXwZuPBb91M0bLE7aBXoWa2V/view?usp=sharing

Hello,
I have your problem.
I did, before losting imei,a backup with "Partitions Backup" by Wanam.I tried to restore my imei but the app seems not working.
If I use your file will my imei change?
Thanks if you want to help me

 

[GaryTG]

I will try to help if I can.... A few questions spring to mind:

1. Have you flashed an early stock ROM? [Step 1]
2. Were your 6 backup files in the .img format?
3. When you say the app is not working, do you mean not showing "success" after each individual img file is restored or is there something else that indicates "not working"?
4. Are you restoring the correct img file to the correct partition (as listed above)?
5. Do all of your backup files fail to restore individually?

Regarding changing the IMEI (using my files), the truth is that I don't know. I suspect that my backup files will only work for EXACTLY the same model as mine (N5120) and that it WON'T change your IMEI. I think the IMEI is "hard coded" in your phone and can't be easily changed. If it were easy, there would be a HUGE market in stolen phones!

But before you try my files, I would persevere with your own backups individually. You should be able to use your own backups. If you are desperate, you could try restoring just one of my m9kef files. When you can successfully restore one file, we/you might think about restoring the rest.

Hope that is of some help.
Regards

 

[Giowi]

I will try to help if I can.... A few questions spring to mind:

1. Have you flashed an early stock ROM? [Step 1]
2. Were your 6 backup files in the .img format?
3. When you say the app is not working, do you mean not showing "success" after each individual img file is restored or is there something else that indicates "not working"?
4. Are you restoring the correct img file to the correct partition (as listed above)?
5. Do all of your backup files fail to restore individually?

Regarding changing the IMEI (using my files), the truth is that I don't know. I suspect that my backup files will only work for EXACTLY the same model as mine (N5120) and that it WON'T change your IMEI. I think the IMEI is "hard coded" in your phone and can't be easily changed. If it were easy, there would be a HUGE market in stolen phones!

But before you try my files, I would persevere with your own backups individually. You should be able to use your own backups. If you are desperate, you could try restoring just one of my m9kef files. When you can successfully restore one file, we/you might think about restoring the rest.

Hope that is of some help.
Regards

My tablet is a N5120
1)Yes
2)yes
3)it show "success" but no imei appears when i dial *#06#
4)yes
5) all backup files are restored successfully

If you extract "efs_backup.img" you can see a folder named "factoryapp".In this folder there is a file called " serial_no. if you open with notepad you can read your own serial number which is different form mine.
So, if I flash your file my serial number will change
I did a backup file with wanam app before losing imei.The app says "success" but no imei is displayed.
Never mind.Everything works.I can call or send sms.It's just strange that my imei is not displayed.

Thanks for your support

 

[GaryTG]

My tablet is a N5120
1)Yes
2)yes
3)it show "success" but no imei appears when i dial *#06#
4)yes
5) all backup files are restored successfully

If you extract "efs_backup.img" you can see a folder named "factoryapp".In this folder there is a file called " serial_no. if you open with notepad you can read your own serial number which is different form mine.
So, if I flash your file my serial number will change
I did a backup file with wanam app before losing imei.The app says "success" but no imei is displayed.
Never mind.Everything works.I can call or send sms.It's just strange that my imei is not displayed.

Thanks for your support

OK.

I'm glad you can call and send SMS. Like you, I am puzzled by the missing IMEI. Hopefully someone more knowledgeable might be able to help you with the missing IMEI. One thought would be to reboot (but I'm pretty sure you would have tried that after the restores). The IMEI must be there and valid or I don't think you would be able to make calls......

I note what you say about the serial number.

Good Luck

 

[peppet]

you saved my life!!! fortunately i had my own files of backup but i didn't kwow how i can restore it. thanks thanks