Database Info

IMEI

Hello everybody!
Well, I have a somewhat complicated issue at hand!
I have a Samsung Galaxy TrendDUOS at hand (model GT-S7392L), and lost the IMEI for a hardreset, he is now 000000000098764, and I would like to restore the original IMEI.
Within the Stock ROM hasn't the modem.bin.
I have no backup of the nv_data.bin and the folder efs / imei has nothing.
Thank you in advance!

Insert your original imei number..

Gaurang5195 said:
Insert your original imei number..
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Are you sure?
www[dot]samsung[dot]com/br/consumer/cellular-phone/cellular-phone-tablets/smartphones/GT-S7392RWPZTO
^ These specifications of my cell phone.
It is not MTK based, so without engineer mode (MTK).

Up!

Up!

how can i put my imei number in opo

hello,
Since last update my oneplus one have lost my IMEI. When i use *#06# i have "Code IMEI null".
How can put my IMEI ( it is writen on my oneplus one box) in my phone ?
Sorry i'm french....

vivelatv said:
hello,
Since last update my oneplus one have lost my IMEI. When i use *#06# i have "Code IMEI null".
How can put my IMEI ( it is writen on my oneplus one box) in my phone ?
Sorry i'm french....
Click to expand...
Click to collapse
How did you end up with no IMEI?

flash latest full officiel rom !!

vivelatv said:
flash latest full officiel rom !!
Click to expand...
Click to collapse
I'm guessing you never made an EFS backup? This is something you absolutely should have done.

yes, i never made EFS backup

vivelatv said:
yes, i never made EFS backup
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Click to collapse
I'm going to go ahead and close this one down. As much as I'd like to see this issue resolved, any talk of IMEI restoration is prohibited on this site.
Thread closed

MI4C IMEI/Baseband unknown

Hi guys!
Yesterday my firmware update went terribly wrong and now I have a device that states that imei and baseband are unknown, so I my both sim-cards don't work.
I've tried several types of IMEI restoration, but none of them worked.
Unfortunately I don't have any backup for nvram. So, my guess is that there is a problem with EFS partition on the phone.
In QPST NV RF Manager I see my real IMEI from the box, so I guess it is still present, but my baseband doesn't work. Can you please suggest any help on recovering the baseband? Or if it is possible share with me modem backup or nvram backup without IMEI (I've seen on this forum that one guy with Samsung S3 had a kind of the same problem and he was given a working nvram backup without IMEI (IMEI was 0/00)) I can write my IMEI then, if baseband works again. Will appreciate any help.

Send it back. Only the oem is legally able to mess with the IMEI.

zelendel said:
Send it back. Only the oem is legally able to mess with the IMEI.
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Well... I have managed to make it work again and my original IMEI is back. The only thing I had to do is to restore a working NVRAM backup (from another device) via QPST. So, it wasn't that hard. Much simpler than sending it back to China.

landslider said:
Well... I have managed to make it work again and my original IMEI is back. The only thing I had to do is to restore a working NVRAM backup (from another device) via QPST. So, it wasn't that hard. Much simpler than sending it back to China.
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If you restored the file from another device then it won't have the right IMEI.

zelendel said:
If you restored the file from another device then it won't have the right IMEI.
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It HAS right IMEI, I checked it with the original box. No need to put up an argument about it. Both devices (mine and the one which was backupped and restored from) are working fine, bot have ORIGINAL IMEI numbers and no errors considering networks or MI accounts. So, actually I have no idea what you are trying to tell me.

landslider said:
It HAS right IMEI, I checked it with the original box. No need to put up an argument about it. Both devices (mine and the one which was backupped and restored from) are working fine, bot have ORIGINAL IMEI numbers and no errors considering networks or MI accounts. So, actually I have no idea what you are trying to tell me.
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I'm not making an argument. I'm trying to figure out how a number which is supposed to be hard coded into the file is then restored by restoring the files from a different device.
As these devices are not sold in the states learning as much as possible is a good thing.
Glad you got it working.

zelendel said:
I'm not making an argument. I'm trying to figure out how a number which is supposed to be hard coded into the file is then restored by restoring the files from a different device.
As these devices are not sold in the states learning as much as possible is a good thing.
Glad you got it working.
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Click to collapse
Okay, sorry. I will try to make it a bit clearer=) This device is not sold in Russia either (officially at least), so the only way to get it is to buy from aliexpress or ebay or anything else. In that case the buyer doesn't get any guarantee or official support. So if the device is broken and can't be restored it turns into a garbage. I believe that in the US the situation with that kind of devices is almost the same.
Now, if You are not familiar with QPST it is a software package for qualcomm based devices which can make backup/restore of some non-firmware software from the device (like IMEI, ESN, Baseband, LTE Channels etc). As for IMEI number, basically, as You've said it is hard coded into device so it is pretty hard to get it changed or fully deleted. Here we come to my case of unknown Baseband and IMEI. Though via phone settings I could see: "Unknown", my IMEI didn't change and was stored in the device. The "error" or smth like that happened after the factory reset and my guess is that the file structure of NVRAM was changed. So, backup of NVRAM taken from the working device didn't actually have IMEI or ESN in it, but it has the right file structure without any errors. That is what happened, the file structure was restored without changing any factory numbers.
If you have any questions, feel free to ask

landslider said:
Okay, sorry. I will try to make it a bit clearer=) This device is not sold in Russia either (officially at least), so the only way to get it is to buy from aliexpress or ebay or anything else. In that case the buyer doesn't get any guarantee or official support. So if the device is broken and can't be restored it turns into a garbage. I believe that in the US the situation with that kind of devices is almost the same.
Now, if You are not familiar with QPST it is a software package for qualcomm based devices which can make backup/restore of some non-firmware software from the device (like IMEI, ESN, Baseband, LTE Channels etc). As for IMEI number, basically, as You've said it is hard coded into device so it is pretty hard to get it changed or fully deleted. Here we come to my case of unknown Baseband and IMEI. Though via phone settings I could see: "Unknown", my IMEI didn't change and was stored in the device. The "error" or smth like that happened after the factory reset and my guess is that the file structure of NVRAM was changed. So, backup of NVRAM taken from the working device didn't actually have IMEI or ESN in it, but it has the right file structure without any errors. That is what happened, the file structure was restored without changing any factory numbers.
If you have any questions, feel free to ask
Click to expand...
Click to collapse
It is almost the same with a few exceptions. One being that their devices are banned from all people that work for the government, sometimes they get stopped at customs due to copyright issues and with the latest news about them coming loaded with malware, most won't buy them.
That makes sense in a way. Not sure why a factory reset would mess up that part of the device as it shouldn't touch it.
Thanks for the info.

zelendel said:
Not sure why a factory reset would mess up that part of the device as it shouldn't touch it.
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Click to collapse
I don't know either, but it was an unforgettable experience and a lesson to do backups of everything.

Hi @landslider, what's up friend? I have the same problem but I have no backup hidden partitions. Could you help me fix my device?

harolete said:
Hi @landslider, what's up friend? I have the same problem but I have no backup hidden partitions. Could you help me fix my device?
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Hi! Have you tried flashing China developer rom with Miflash?
Second option: Connect to your PC and run QPST according to one of the manuals (in order for your phone to show up as a COM), run RF NV Manager and look up your line 550 NV_IMEI if it is filled with numbers that are the same as on your box (check HEX above them and numbers should resemble yours from box but written in opposite direction, eg: on the box it is XXXX69XXXXX in the QPST it will be 96). So, if your IMEI is at its place than all you need is a working device from someone to make a backup. Backup must be made in newer versions of QPST in *.xqcn format and than restored to your phone with checked box "allow ESN mismatch"

landslider said:
Well... I have managed to make it work again and my original IMEI is back. The only thing I had to do is to restore a working NVRAM backup (from another device) via QPST. So, it wasn't that hard. Much simpler than sending it back to China.
Click to expand...
Click to collapse
Could you teach me how to do that? how can i make nvram backup via other mi4c? and how can i put it into my mi4c ?? as i am not good at computer so i need your detailed explanation. I would be very glad if you help me.....

landslider said:
Okay, sorry. I will try to make it a bit clearer=) This device is not sold in Russia either (officially at least), so the only way to get it is to buy from aliexpress or ebay or anything else. In that case the buyer doesn't get any guarantee or official support. So if the device is broken and can't be restored it turns into a garbage. I believe that in the US the situation with that kind of devices is almost the same.
Now, if You are not familiar with QPST it is a software package for qualcomm based devices which can make backup/restore of some non-firmware software from the device (like IMEI, ESN, Baseband, LTE Channels etc). As for IMEI number, basically, as You've said it is hard coded into device so it is pretty hard to get it changed or fully deleted. Here we come to my case of unknown Baseband and IMEI. Though via phone settings I could see: "Unknown", my IMEI didn't change and was stored in the device. The "error" or smth like that happened after the factory reset and my guess is that the file structure of NVRAM was changed. So, backup of NVRAM taken from the working device didn't actually have IMEI or ESN in it, but it has the right file structure without any errors. That is what happened, the file structure was restored without changing any factory numbers.
If you have any questions, feel free to ask
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Click to collapse
so can you please upload that xqcn file from the working device ? i have the same issue and i can't find a working mi4c inn my area !

spybit2008 said:
so can you please upload that xqcn file from the working device ? i have the same issue and i can't find a working mi4c inn my area !
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Click to collapse
Hi! Unfortunately no, I can't. I don't have xiaomi mi4c anymore

spybit2008 said:
so can you please upload that xqcn file from the working device ? i have the same issue and i can't find a working mi4c inn my area !
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Click to collapse
http:/ en.miui.com thread-315233-1-1.html (replace whitespaces with slash)
There is a thread in official forum where one guy shares qcn backup. There is also an instruction to restore IMEI and baseband. But It doesn't help for me. Network still unavailable.

Network not available at recently 4.4.2 flashed N8000

Hi guys. I'm posting here in a desperate attempt to solve my problem.
A year ago I purchased an used N8000 with Omega 4.1.2 ROM installed, and worked very good. But a couple of days ago, I flashed my tablet to get the 4.4.2 update, because I need some apps not compatible on old versions.
Everything is ok except for the fact that my sim card is not recognized anymore, if I select the operator manually, I get a "network not available" error.
I made a lot of research, with no results so far to fix the problem. The only thing I learned is that I think it has something to do with the baseband version. Currently I have the N8000XXUDND2 version, the IMEI is ok.
I live in Paraguay, the 3G band of my operator is on 850MHz.
If there's no solution, can I just downgrade to the omega rom by flashing as usual? Or the process is different?
Thanks in advance

What modem what csc ?
Sent from my SM-N920C using XDA-Developers mobile app

JJEgan said:
What modem what csc ?
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Click to collapse
CSC: N8000OXADNE4
Modem was originally N8000XXUDNE1, then changed it to N8000XXUDND2 but still no sim or signal.
I got it from here: www(dot)droidopinions(dot)com/how-to-update-galaxy-note-10-1-gt-n8000-to-4-4-2-kitkat-official/

No sim check sim holder
Sent from my SM-N920C using XDA-Developers mobile app

JJEgan said:
No sim check sim holder
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Click to collapse
Sorry but I don't understand your question

Phone has a holder for sim card .
Sent from my SM-N920C using XDA-Developers mobile app

Tried flashing the modem I had before, still no signal. I think I screwed my tablet.

when u flash a rom then downgrade it the phone's imei code gets changed which causes "no network" error .
I'm trying to figure out restoration process of original imei code for my device too.

shk9alaxy said:
when u flash a rom then downgrade it the phone's imei code gets changed which causes "no network" error .
I'm trying to figure out restoration process of original imei code for my device too.
Click to expand...
Click to collapse
I don't even know how can I check the original imei of my device, since I forgot to write it down. On phones they are usually printed behind the battery, but this doesn't have a detachable battery.

If your IMEI is wrong then restore your backed up EFS folder .
Sent from my SM-N920C using XDA-Developers mobile app

DaniOcampo1992 said:
I don't even know how can I check the original imei of my device, since I forgot to write it down. On phones they are usually printed behind the battery, but this doesn't have a detachable battery.
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It's written at the bottom back of the tab & on the box seal as well. Or dial *#06#. I tired hard reset & stock rom still imei error

I checked and indeed there's the original imei written at the back of the tab, and it's not the same number as of dialing *#06#. Don't know how to restore though since I didn't back up any efs folder.

You can do a search on XDA there are a number of posts regarding users that failed to backup EFS and null IMEI .

I have the same error, after root, imei and baseband are gone.
don't have efs backup

Question NO İMEİ AND NO WİFİ PLSS HELP

I was trying to repair my imei and I deleted efs . when I try to repair my qcn , it says succesful but there is no imei and wifi. PLS HELP ME

boy2121 said:
I was trying to repair my imei and I deleted efs . when I try to repair my qcn , it says succesful but there is no imei and wifi. PLS HELP ME
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Try flash fastboot rom

bienvanhoang said:
Try flash fastboot rom
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Click to collapse
I tried still same

The easiest way is Xiaomi customer service.
First check if your Xiaomi customer service has warrant coverage after bootloader unlock. (Some country does, some does not.) [ie. warrant the physical device; rom state or bootloader doesn't matter]

boy2121 said:
I was trying to repair my imei and I deleted efs . when I try to repair my qcn , it says succesful but there is no imei and wifi. PLS HELP ME
Click to expand...
Click to collapse
you wont be able to restore qcn even if you have unmodified qcn. newest 2021 xiaomi devices got RSA on both sim1 and sim2 modems. qfil will write it but after reboot it will be back to stock so you need your EFS.

gsser said:
you wont be able to restore qcn even if you have unmodified qcn. newest 2021 xiaomi devices got RSA on both sim1 and sim2 modems. qfil will write it but after reboot it will be back to stock so you need your EFS.
Click to expand...
Click to collapse
I have my qcn backup cant I do something with that?

gsser said:
you wont be able to restore qcn even if you have unmodified qcn. newest 2021 xiaomi devices got RSA on both sim1 and sim2 modems. qfil will write it but after reboot it will be back to stock so you need your EFS.
Click to expand...
Click to collapse
sorry if n00b question: so is a EFS backup crucial for IMEI restore?

gsser said:
you wont be able to restore qcn even if you have unmodified qcn. newest 2021 xiaomi devices got RSA on both sim1 and sim2 modems. qfil will write it but after reboot it will be back to stock so you need your EFS.
Click to expand...
Click to collapse
what if I restore someon elses efs backup?

ChriMo said:
sorry if n00b question: so is a EFS backup crucial for IMEI restore?
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qcn contains efs. efs contains carrier stuff + imei stuff.
basically you cant overwrite a qcn but dont know about efs.

boy2121 said:
what if I restore someon elses efs backup?
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might work but you need to find someone who is willingly wanting to give you his/her efs...

pl1992aw said:
The easiest way is Xiaomi customer service.
First check if your Xiaomi customer service has warrant coverage after bootloader unlock. (Some country does, some does not.) [ie. warrant the physical device; rom state or bootloader doesn't matter]
Click to expand...
Click to collapse
No one customer service provides free of charge repair if you loss IMEI.

bartito said:
No one customer service provides free of charge repair if you loss IMEI.
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Yeah did told them to check, but didn't say it will be free of charge. But Xiaomi definitely will repair it or change one for you.
Even if you find someone on the net, many will charge you some dollars. And you don't even know if they actually can fix it or just a scam.
Unless there's some way to bypass, or an exploit to make EDL work, for general user, Xiaomi customer service is better and safer.

boy2121 said:
I was trying to repair my imei and I deleted efs . when I try to repair my qcn , it says succesful but there is no imei and wifi. PLS HELP ME
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Click to collapse
I did the same mistake unfortunately. Did you find any solution?

johnkabou said:
I did the same mistake unfortunately. Did you find any solution?
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need to reflash imei and rewrite it
CHEERS

Download - SN Write Tool
snwritetool.com
you can try this tool.. I used it long ago helped me then.
Cheers