Database Info

[Q] cell network loss

Hello!
I have a very strange problem with my Nexus S 9023.
At some moment phone have lost cell network totally. Rebooting device did not help. I tried to reinstall ROM and to change it (same with KRENEL and RADIO).
Sim is ok. No sim works on my phone.
Specs:
Rom - 2.3.4. SuperAOSP ST 8.6
Kernel - Matrix cfs v 6.5
Radio - D1
UPD:
-netmonitor app does not find any signal
-system says "radio version unknown"
-phone was not damaged
-*#*#4634#*#* shows "disconnest GSM: State: DCInActiveState Disconnected with last try at 2:29 fail because No Error". Preferred network type in this window can not be changes from "unknown"
-IMEI is "-"
If anyone have some ideas please help me

Have you flashed a new radio recently? If you have you need to restore the EFS folder using root explorer and reboot. It sounds like you have corrupted the EFS folder somehow if your imei number is not showing.

I found this folder. How should I restore it?

gwynnbleidd said:
I checked EFS folder with File Expert. And in IMEI folder I have found no files. What should I do now?
Click to expand...
Click to collapse
Put the stock ROM on your phone, lock the bootloader and ship it to a samsung repair center.

georgemv said:
Put the stock ROM on your phone, lock the bootloader and ship it to a samsung repair center.
Click to expand...
Click to collapse
My girlfriend's did the same thing I'm having to send it out complete network failure. It was intermittent for a while now, no matter what nothing works.
Sent from my Xoom using XDA App

I'm sorry, but I can't believe that second Nexus device is so easy to break/brick! On Passion things were much simpler/harder to break...
Just sharing my thoughts. This stuff with /efs is just unbelievable... What were they thinking?? Befeore Crespo I didn't even know that IMEI can be wiped off of device
Sorry for all of you guys having hard time with this flaw

WOW!
my colleague from service center reports that they have repaired my phone. But it took one week. And samsung techniсians could not propose any solution immediately. They needed some tine to think.
So now i think how to do a full dackup of my phone before next try to receive root and flash it with AOSP

gwynnbleidd said:
WOW!
my colleague from service center reports that they have repaired my phone. But it took one week. And samsung techniсians could not propose any solution immediately. They needed some tine to think.
So now i think how to do a full dackup of my phone before next try to receive root and flash it with AOSP
Click to expand...
Click to collapse
Great! Where do you live? I have problem with my IMEI, but for now, my Nexus is working fine.
One more question? You didn't have any IMEI number??

I live in Moscow.
Right now my IMEI is 004999010640000 and also some IMEI SV 01

[Q] [q] after unlocking sim card...no one accepted

HI GUYS...
I UNLOCKED MY SAMSUNG GALAXY INFUSE AS USUAL, AND ITS OK "UNLOCKED"...
BUT WHEN I INSERT MY SIM CARD IT WORKED FOR FEW MINUTES, AFTER THAT IT SAYS NO SERVICE AND THERE IS NO SIGNAL AT ALL... BUT SOMETIME I GOT SIGNALS BUT WITHOUT REGISTERED NETWORK.
NOTE:
MABY THE PROBLEM FROM THE IMEI NUMBER, BECAUSE I GOT IT WRONG , IT IS LIKE IN THE ATTACHMENT.
PLEASE GUYS HELP ME ....

Yep, a borked imei number will not allow you to connect to your cellular network...
I'm guessing that your efs folder wasn't backed up... you can try this...http://forum.xda-developers.com/showthread.php?t=881162
I haven't tried this but good luck.

thank you brassguy...
but does this work for infuse 4G ?
In addition, I read that we can change the IMEI number using the ADB, or is there another way to do this?
Also, what about the GSII_repair app, can I use it for my phone (infuse 4G)?

i had this problem last night where i flashed a rom. i return it to stock and imei showed up.
was having a imei" unknown error" and i backed up now on my computer.
ps ebay sales unlock service for 0.99$ if you didn't buy the code and just hacked it with hex or whatever
mine is already unlocked and it's permanent
i do travel over seas alot

But i returned mine to stock many times but the imei number still like this.
I did no get you in the third line???

BrassGuy said:
Yep, a borked imei number will not allow you to connect to your cellular network...
I'm guessing that your efs folder wasn't backed up... you can try this...http://forum.xda-developers.com/showthread.php?t=881162
I haven't tried this but good luck.
Click to expand...
Click to collapse
It does not work for me....
Because I did not find the those numbers in hexeditor
THERE ARE 3 Total Lines you will need to edit:
00188008
00188010
00188020
or maby I did something wrong

Please guys someone help me to solve this problem ,because I can not use the phone....
No one have ever faced or seen this problem with someone and solved??

[Q] Fix imei?

I was flashing a radio on my one plus one. Now the imei shows all 0's. How I can I repair the original Imei? I have heard you can use qxdm? Please any insight will help

I had the same problem.. I flashed Calkulin stock rooted with the extras. That fixed it...

I tried flashing another rom.. Is there a way for me too manually enter the imei?

No don't think so..

monkey28rb said:
I tried flashing another rom.. Is there a way for me too manually enter the imei?
Click to expand...
Click to collapse
Discussion about manually modifying IMEI numbers in any way is not allowed on XDA as it is illegal in many countries, including the USA where this site is based.

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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
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.
Click to expand...
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?
Click to expand...
Click to collapse
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
Click to expand...
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 !
Click to expand...
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 !
Click to expand...
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.

Question ROG 5 Null IMEI Repair to it Factory State

Greetings
Mods kindly spare me not trying to change IMEI here I know thats illegal, Just trying to repair the phone back to its factory state
I am having null IMEI issue with my ROG5 and Network is not working
Now I don't have any backup unfortunately which is worse ( I have had this experience with the Samsungs before and their only hope was EFS backup, i am not sure how it is for ROG's)
I have noticed many people experiencing the same after converting the ROM unfortunately don't have the box with them , good thing is I have my phones box with me is there a way that I can repair my phone to its working factory state
I don't have access/option of those premium boxes for repair in my city, is there a way that I could repair it myself instead of falling for scam paying somewhere thanks I'm advance help appreciated

techyrock said:
Greetings
Mods kindly spare me not trying to change IMEI here I know thats illegal, Just trying to repair the phone back to its factory state
I am having null IMEI issue with my ROG5 and Network is not working
Now I don't have any backup unfortunately which is worse ( I have had this experience with the Samsungs before and their only hope was EFS backup, i am not sure how it is for ROG's)
I have noticed many people experiencing the same after converting the ROM unfortunately don't have the box with them , good thing is I have my phones box with me is there a way that I can repair my phone to its working factory state
I don't have access/option of those premium boxes for repair in my city, is there a way that I could repair it myself instead of falling for scam paying somewhere thanks I'm advance help appreciated
Click to expand...
Click to collapse
So long as this thread doesn't deteriorate to paid services and changing IMEI, you are ok.
Why don't you look at https://forum.xda-developers.com/t/repair-your-asus-rog-phone-5-with-edl-mode.4271121/?

TNSMANI said:
So long as this thread doesn't deteriorate to paid services and changing IMEI, you are ok.
Why don't you look at https://forum.xda-developers.com/t/repair-your-asus-rog-phone-5-with-edl-mode.4271121/?
Click to expand...
Click to collapse
Greetings
Thanks for the reply mate, will this resolve the IMEI issue aswell? Or ill need some tool to manually write IMEI, the thing is I want it to its factory state meaning both IMEI and serial on box the way phone came

techyrock said:
Greetings
Thanks for the reply mate, will this resolve the IMEI issue aswell? Or ill need some tool to manually write IMEI, the thing is I want it to its factory state meaning both IMEI and serial on box the way phone came
Click to expand...
Click to collapse
I don't know. I simply searched the forum before posting. You will have to read that thread in full to find answers to your questions.

TNSMANI said:
I don't know. I simply searched the forum before posting. You will have to read that thread in full to find answers to your questions.
Click to expand...
Click to collapse
I looked that thread up, that apparently is a fix for devices stuck in EDL mode, My device is booted & functioning properly other than no IMEI display in dialer *#06# and Sim/Network not working

Does your fingerprint reader work? That would be surprising, like hundreds of users on Zentalk who have an HS SIM, it is the disconnected cable that is in question and that manages both (SIM and Reader footprint).