Database Develop

[Q] Can't connect to mobile network

Hello,
I've got a Galaxy Note, which a mate gave to me, because he has the new Note 2 now.
He said that he has some network problems (he has two times vodafone.cz), but didn't say anything in detail. So I thought the problem would be solved with flashing another rom, like CM 9.1. He already had the stock 4.0.4 and I read that I have to flash back to GB before flashing to CM 9.1.
At first I made a backup of the efs folder with kTool. After that I flashed the LC1 version of GB (3 parts, open Europe) but with this flashing process, I lost my IMEI ! So I wanted to restore the efs folder with kTool again, but it didn't work for me, I still had no IMEI.
I thought that the structure of the efs folder could have changed from 3.6 to 4.0.4 and that this would be the reason why I can't restore the efs folder. Therefore I flashed back to a Samsung stock rom of Android 4.0.4 (N7000XXLRG_N7000DBTLRG_DBT).
And then the surprise: I had my IMEI back, without restoring the efs folder!
This just was the background. Now to my problem: I still can't connect to the mobile network. In the notification bar is written "emergency calls only" (I don't know if it is translated on the right way, because I'm from germany). If I go to the network settings and search for mobile networks, I find all the networks I reach in my area, o2-de as well, which is my favourite network. But if I want to register to the network, it takes a while and then it says: Registration failed. And after that, I also can't make emergency calls, there is written "No service"
All in all my question is: Why am I able to find networks, but can't register to my one? I also tested it with other SIM-cards from other providers, but it still does not work..
I hope anyone of you has a solution for my issue.
greetings
Senfy
Edit: My IMEI begins with 359, so it should not be a developer IMEI

May be it has network lock. Have you tried apps like galaxy s unlock from the play store.

I tested it now, but everytime I want to unlock my phone, I loose my IMEI and I have to restore the efs folder..
But if I open Galaxsim Unlock, it says my device isn't locked.. so this seems to be not the solution..

Now I flashed to CM 9.1 with the hope to solve this problem.. CM 9.1 works, but I still can not register to my network... has anyone another idea how to solve this problem ??

Are you check an eyes in code or test menu ?
Go in dialer and tape
*#0011#
Then use menu and back in menu to come on general and check in different menu(debug)

I'm sorry I don't understand you. If I dial this code nothing happens. I also searched for this code (google) but without any result.
maybe you could post a link with an exact description how to do what you mean..
But thanks for your effort.

Now I wanted to flash another modem.. but everytime I want to flash it, I lose my IMEI !
The only way to get my IMEI back is to flash back to N7000XXLRG_N7000DBTLRG_DBT ...
I don't know what to do next.. I would be glad if someone could help me..
Edit: What I forgot to tell you: The reception of emergency calls goes up and down over the time.. maybe someone of you can conclude anything out of this information..

Doesn't anyone have an idea how to solve this problem?

how are you flashing the modem? tried mobile odin?

I flashed the whole GB (3 parts) with PC Odin and the actuall modem with mobile Odin but with no success..

Where is da solution 2 no network after update
Sent from my GT-N7100 using xda app-developers app

[q] help me please! Root gone wrong!

When I rooted my phone I downloaded the wrong file to root it with. Instead of gt-i9305 I used gt-i9505. After I rooted it I appear to not have and sort of broadband connection. I can still connect via wi-fi. No I do not have a back up efs file.
Network>unknown
Mobile Network type>unknown
Service state>out of service
Roaming>not roaming
My phone number> unknown
ERI version> unknown
IMEI> unknown
IMEI SV>unknown
Device status> modified
If you need any more information feel free to ask.
Thank you for reading this post, hope I can get this phone fixed up in no time.
EDIT: *#06# shows imei as null/null

Search for multi-package firmware and flash via Odin
I9305_IMEI_Repair
I9305XXALI5_I9305VD2ALI4_I9305BUALI6_CSC
I9305XXALI5_I9305VD2ALI4_I9305BUALI6_PDA
I9305XXALI5_I9305VD2ALI4_I9305BUALI6_PHONE
Sorry I can't upload it for you.

http://forum.xda-developers.com/showthread.php?t=1946915
Go down to Recovering IMEI And Data Connection After Flashing WRONG Root Package Intended For I9300:
Follow those instuctions there and you'll be all good

HELP - Mi3 with no IMEI

Hi,
I've bought a new Xiaomi Mi3... it came with MiuiV6 installed, but it doesnt have IMEI!!
The IMEI on the back of it is OK, the phone is an original Xiaomi Mi3... i belive that the seller (ibuygou.com) made a fail flash of Miui V6 and the Imei was lost in the process...
I've tried a hard reset and nothing... i've flashed the lastest Fastboot via MiFlash.... and the lastest 5.2.13 Multilang ROM... i had problems with Wi-Fi connection and after this they were resolved... But the SIm recognition (does not recognizes it) and the IMEI Loss is still happening...
Anyone can help me?!? ibuygou.com is on spring festival hollidays
Via QPST i've downloaded the 00000000_0.qcn File... but once i don t know what is the bricked/crashed IMEI how can i change the Hex code for the correct IMEI?! is there any way to find out what Hex code i have to replace?!? so i can restore the 00000000_0.qcn File with the correct IMEI?!
Regards
Hugo

flash it with stock rom
i just flashed my phone . I also have no imei. After flashing my imei is back. try yourself

istiak007 said:
i just flashed my phone . I also have no imei. After flashing my imei is back. try yourself
Click to expand...
Click to collapse
I've done a new flash... via miflash fastboot.... now i have BaseBand (it was null before) and IMEI= 0 and IMEI SV = 00
Now i need to find a way to change the IMEI from 0 to the original IMEI on the back of the phone...
any help?

you can try imei change with mobile uncle tools
you can try imei change with mobile uncle tools. your phone must be rooted or else use terminal emulator to retrieve your old imei from cli

xistolas said:
Hi,
I've bought a new Xiaomi Mi3... it came with MiuiV6 installed, but it doesnt have IMEI!!
The IMEI on the back of it is OK, the phone is an original Xiaomi Mi3... i belive that the seller (ibuygou.com) made a fail flash of Miui V6 and the Imei was lost in the process...
I've tried a hard reset and nothing... i've flashed the lastest Fastboot via MiFlash.... and the lastest 5.2.13 Multilang ROM... i had problems with Wi-Fi connection and after this they were resolved... But the SIm recognition (does not recognizes it) and the IMEI Loss is still happening...
Anyone can help me?!? ibuygou.com is on spring festival hollidays
Via QPST i've downloaded the 00000000_0.qcn File... but once i don t know what is the bricked/crashed IMEI how can i change the Hex code for the correct IMEI?! is there any way to find out what Hex code i have to replace?!? so i can restore the 00000000_0.qcn File with the correct IMEI?!
Regards
Hugo
Click to expand...
Click to collapse
Darkmed repair imei :good:

IMEI Baseband Restore / QCN file?

Hey XDA,
I'm hoping that somebody here can help me. I have somehow deleted the IMEI, Baseband and all of that from my phone and I'm unable to get any cellular connection. My wifi and bluetooth still works. I have tried using a generic qcn file to restore the imei but the imei only displayed until I rebooted it, and it didn't restore the network at all. My phone is rooted and setup for diag mode and all of that. I haven't had any success using QPST, I unfortunately do not have a backup and I was wondering if anybody could provide me with a QCN directly from a ZE620KL, WW version preferably. I can edit the IMEI's into the file myself. My phone is rooted using Magisk, currently on Android 8.0
Thanks so much!

Imei becomes unknown during flashing custom rom

I have tried many custom roms but when i flash it, my imei number becomes unknown and i can't use my wifi and my sim is not detected. I tried and followed every steps but it happened every time. Then when i used the motorola rescue tool and flashed my own firmware i got my imei number back and sim and wifi are also working. I want to use a custom rom, which custom rom should i use?

aniruddhapal said:
I have tried many custom roms but when i flash it, my imei number becomes unknown and i can't use my wifi and my sim is not detected. I tried and followed every steps but it happened every time. Then when i used the motorola rescue tool and flashed my own firmware i got my imei number back and sim and wifi are also working. I want to use a custom rom, which custom rom should i use?
Click to expand...
Click to collapse
I tried with leveno app and I can back it up, but still got null baseband not found. I know I asked from you a lot but is there anyway backup EFS and presit (sorry my spelling) into an twrp backup?
Because even I flash the stockrom, it dosent find IMEI numbers and the carrier