Database Users

[Q] IMEI problem

my phone showing network not registered when place a call. the status of the device in about phone is shown as service state; disconnected.
this all happened after flashing the latest update of stock russian rom via odin. the network disappeared.
when i enter *#0011# in that it shows IMEI certi fail.
also the imei shown in about phone in settings is different than the one on the phone behind the battery.
the about phone is showing the following IMEI 004999*****0000. since i cant write the full IMEI number i used asterisks.
please help me out with this
awaiting earliest reply
Thanks

momerbk said:
my phone showing network not registered when place a call. the status of the device in about phone is shown as service state; disconnected.
this all happened after flashing the latest update of stock russian rom via odin. the network disappeared.
when i enter *#0011# in that it shows IMEI certi fail.
also the imei shown in about phone in settings is different than the one on the phone behind the battery.
the about phone is showing the following IMEI 004999*****0000. since i cant write the full IMEI number i used asterisks.
please help me out with this
awaiting earliest reply
Thanks
Click to expand...
Click to collapse
Flash an older modem with Odin 3.04, this worked for many users for restoring the EFS folder. See item 3 in my signature for all available modems.

gee2012 said:
Flash an older modem with Odin 3.04, this worked for many users for restoring the EFS folder. See item 3 in my signature for all available modems.
Click to expand...
Click to collapse
Thanks A LOT for replying
sorry for being a noob but the following rom is installed : I9500XXUBMEA_I9500OJVBMEA_I9500XXUBMEA_HOME.tar
and im sorry but i dont know which one is an older modem for this. i did flash I9500_XXUAMDK_MODEM this though but had no luck with fixing the issue.

momerbk said:
Thanks A LOT for replying
sorry for being a noob but the following rom is installed : I9500XXUBMEA_I9500OJVBMEA_I9500XXUBMEA_HOME.tar
and im sorry but i dont know which one is an older modem for this. i did flash I9500_XXUAMDK_MODEM this though but had no luck with fixing the issue.
Click to expand...
Click to collapse
Post your question here http://forum.xda-developers.com/showthread.php?t=2192886 and adress to @samersh72, he can help you out for sure.

gee2012 said:
Flash an older modem with Odin 3.04, this worked for many users for restoring the EFS folder. See item 3 in my signature for all available modems.
Click to expand...
Click to collapse
okay so i flashed I9500_XXUAMDE_MODEM.tar now and i see the following(check attachment) instead of the signal bars that i was able to see earlier

momerbk said:
okay so i flashed I9500_XXUAMDE_MODEM.tar now and i see the following(check attachment) instead of the signal bars that i was able to see earlier
Click to expand...
Click to collapse
Oke mate, reflash the modem you had earlier or reflash the stock rom with Odin 3.04 (you will not loose any data).

Imei Certi Fail
momerbk said:
my phone showing network not registered when place a call. the status of the device in about phone is shown as service state; disconnected.
this all happened after flashing the latest update of stock russian rom via odin. the network disappeared.
when i enter *#0011# in that it shows IMEI certi fail.
also the imei shown in about phone in settings is different than the one on the phone behind the battery.
the about phone is showing the following IMEI 004999*****0000. since i cant write the full IMEI number i used asterisks.
please help me out with this
awaiting earliest reply
Thanks
Click to expand...
Click to collapse
Hi,i am having the same problem,can u teach me how to fix this?:crying:
---------- Post added at 02:31 PM ---------- Previous post was at 02:24 PM ----------
gee2012 said:
Flash an older modem with Odin 3.04, this worked for many users for restoring the EFS folder. See item 3 in my signature for all available modems.
Click to expand...
Click to collapse
Hi,i am having the same problem as above,can u teach me how to fix it?My i9500 is on 4.2.2 now,what if i flash 4.3 stock firmware,will it cure the imei?

..

Please help me! my phone is screwed

Hey I'm from india and own an i9500
bought 5 months ago
I was using my phone normally and flashed a stock rom with ODIb
the phone booted up.
The problem is that I have emergency calls only and my IMEI has been changed to Fake IMEI
1) my phone is out of warranty as some moisture traces have gone into iy and samsung asks for 200$ for every small problem they need to change the board
2) I don't think so I have the EFS backup
Please Oh please someone guide me what to do?

usama492 said:
Hey I'm from india and own an i9500
bought 5 months ago
I was using my phone normally and flashed a stock rom with ODIb
the phone booted up.
The problem is that I have emergency calls only and my IMEI has been changed to Fake IMEI
1) my phone is out of warranty as some moisture traces have gone into iy and samsung asks for 200$ for every small problem they need to change the board
2) I don't think so I have the EFS backup
Please Oh please someone guide me what to do?
Click to expand...
Click to collapse
There's a thread on that here. You could try that, but I think that without a backup, it's going to be pretty hard to get it back up. First thing I do when I get a new phone is to backup the EFS.
http://forum.xda-developers.com/showthread.php?t=2346136

no help man.
any other help please anyone?

Flashing a different stock rom did not help?

usama492 said:
no help man.
any other help please anyone?
Click to expand...
Click to collapse
Did you actually tried to flash your original Stock ROM with Odin? If not, try other stock ROMs.
There's another ref link here: http://forum.xda-developers.com/showthread.php?t=2393289
I recommend you read through that thoroughly.

Cloxed said:
Did you actually tried to flash your original Stock ROM with Odin? If not, try other stock ROMs.
There's another ref link here: http://forum.xda-developers.com/showthread.php?t=2393289
I recommend you read through that thoroughly.
Click to expand...
Click to collapse
Yes I did flash the stock rom with ODIN which I successively used before
I read it but this is actually getting impossible for me.
After the phone shows generic IMEI.
will backing up the efs help now?
Also I flashed CM 10.
that also didn't give me back my IMEI.
really appreciate your help
and would be really grateful if someone guides me through this catastrophe.

Also I forgot to mention that I update to stock MJ5 4.3
I read that it changes the directory of efs?
Please someone help me!

usama492 said:
Also I forgot to mention that I update to stock MJ5 4.3
I read that it changes the directory of efs?
Please someone help me!
Click to expand...
Click to collapse
Since you updated to mj5 you'll have to use that firmware version in odin.

maybe
Maybe you could wipe Dalvik and cache memory, then do a factory reset through the recovery menu. This will reset everything of your phone, so your IMEI should go back to it's real number(you'll lose all your data so make a backup before doing it).
Have you also tested if it's not the SIM that doesn't work by putting it into another cell-phone?

Eastkap said:
Maybe you could wipe Dalvik and cache memory, then do a factory reset through the recovery menu. This will reset everything of your phone, so your IMEI should go back to it's real number(you'll lose all your data so make a backup before doing it).
Have you also tested if it's not the SIM that doesn't work by putting it into another cell-phone?
Click to expand...
Click to collapse
Sim isn't the problem.
Also wipin dalvik Cache might now fix the problem. But I will try it
thanks
any more suggestion?

A factory reset/wipe Dalvik ain't magically fixing this. If you've gone back to stock (a rom released by your carrier) & your IMEI hasn't returned & you have no backup, you're boned. Service centre (more expensive option), or ask around local mobile repair shops; they might be able to help more cheaply.

[Q] insert sim card to access network services

I got this message after updating to android 4.4.4.
What could be causing this?

term44 said:
I got this message after updating to android 4.4.4.
What could be causing this?
Click to expand...
Click to collapse
Hi check your IMEI see if it is correct...
Could be the wrong modem or a bad EFS do you have an EFS folder back up

MAX 404 said:
Hi check your IMEI see if it is correct...
Could be the wrong modem or a bad EFS do you have an EFS folder back up
Click to expand...
Click to collapse
Checked the IMEI, it is ok.

term44 said:
Checked the IMEI, it is ok.
Click to expand...
Click to collapse
If is not hardware, chances are that the efs folder is corrupted.
Try a different kernel
Try a different modem
Flash full wipe custom rom again..
Last flash stock rom...
If all fails the problem most like it is in the efs folder, if you have a backup restore it

MAX 404 said:
If is not hardware, chances are that the efs folder is corrupted.
Try a different kernel
Try a different modem
Flash full wipe custom rom again..
Last flash stock rom...
If all fails the problem most like it is in the efs folder, if you have a backup restore it
Click to expand...
Click to collapse
would try that all, but the phone refuses to connect to pc now, so i can not transfer the files... any suggestions?
it says that device driver did not install properly. i have installed kies in order to push drivers to my pc, but still same.

term44 said:
would try that all, but the phone refuses to connect to pc now, so i can not transfer the files... any suggestions?
it says that device driver did not install properly. i have installed kies in order to push drivers to my pc, but still same.
Click to expand...
Click to collapse
De install drivers and install them again , try another usb port , make sure kies is not activated

MAX 404 said:
De install drivers and install them again , try another usb port , make sure kies is not activated
Click to expand...
Click to collapse
just done that and still cant connect. however odin detects the phone, which is good :=) so i will install stock rom.
hopefully that will solve the problem with the sim card..

term44 said:
just done that and still cant connect. however odin detects the phone, which is good :=) so i will install stock rom.
hopefully that will solve the problem with the sim card..
Click to expand...
Click to collapse
restoring to stock rom solved the problem

term44 said:
restoring to stock rom solved the problem
Click to expand...
Click to collapse
Glad is working mate
Back up before you do anything else do not forget to backup the efs folder
Sent from my Nexus 7 using XDA Premium 4 mobile app

same issue.
I have the same issue as described by the op.
I flashed back to official 4.4.2 and the problem persist.
IMEI number is correct.
IMEISV is 01
Ive been trying to fix this for over a week to no avail. Losing my mind. Is there anything else you can suggest to fix this issue?
Phone is an i9500.

Was really hoping for some help by now. This will be the second time ive posted to this site in the 2 years ive been here with zero responses.
As a side note. I wanted to add that at the same time i started having the "not registered on network" error my sd card stopped being read by the phone also. I replaced the sim/sd holder in the phone itself hoping this would fix both issues but it has obviously not. Still not reading the sd. Says its blank or unrecognized file system. When i try to format it it doesn nothing. This is the sd I had in the phone before having issues. It worked fine then.
The phone just suddenly stopped working one morning. I used it to send a couple text and make a call, next time i picked it up "not registered" issue began. No changes to the phone in between those times.
I figured I would add this info in hopes of gaining a response.
Thanks.

Changed csc, lost signal, need help

Hello, yesterday i bought used samsung galaxy s7 edge dual, sm-g935fd. It was rooted, owner said root was done to flash a rom to let phone see two sims. Went back home, started to install apps, and saw that snapchat doesnt work with rooted phone, so turned superSU, chose full unroot, phone did restart but stuck on bootloop. All I saw, was csc:g935f0xx1bph1 and pda:G935FXXU1BPLB. Could't find matching pda and csc roms, so installed another, for g935f, and everything worked fine, except from network, it only says emergency calls only and no signal, but it finds that my sim is from tele2.
On other thread i saw that i can use home_csc for my csc code, and any other pda, bl, ap, tried that and odin failed to flash it, so now flashed netherlands stock rom that changed my AP:G935FXXU1DQEF CP:G935FXXU1DQD7 CSC:G935FPHN1DQD1 Model: SM-G935F/DS.
Can you guys help me to get my network signal working again? I think that matching software for my phone would fix it, but i cant find which one to flash, or is there anything else that could have caused that?
Thank you for your help.

iTrolis said:
Hello, yesterday i bought used samsung galaxy s7 edge dual, sm-g935fd. It was rooted, owner said root was done to flash a rom to let phone see two sims. Went back home, started to install apps, and saw that snapchat doesnt work with rooted phone, so turned superSU, chose full unroot, phone did restart but stuck on bootloop. All I saw, was csc:g935f0xx1bph1 and pda:G935FXXU1BPLB. Could't find matching pda and csc roms, so installed another, for g935f, and everything worked fine, except from network, it only says emergency calls only and no signal, but it finds that my sim is from tele2.
On other thread i saw that i can use home_csc for my csc code, and any other pda, bl, ap, tried that and odin failed to flash it, so now flashed netherlands stock rom that changed my AP:G935FXXU1DQEF CP:G935FXXU1DQD7 CSC:G935FPHN1DQD1 Model: SM-G935F/DS.
Can you guys help me to get my network signal working again? I think that matching software for my phone would fix it, but i cant find which one to flash, or is there anything else that could have caused that?
Thank you for your help.
Click to expand...
Click to collapse
I don't think it's CSC related...maybe modem problem.
Flash custom ROM,install magisk..hide magisk for Snapchat and u could use it with a rooted phone

gabytzubc said:
I don't think it's CSC related...maybe modem problem.
Flash custom ROM,install magisk..hide magisk for Snapchat and u could use it with a rooted phone
Click to expand...
Click to collapse
can you link me to easiest way to flash custom rom? im new to samsung so i definetely will have some issues while flashing it

iTrolis said:
can you link me to easiest way to flash custom rom? im new to samsung so i definetely will have some issues while flashing it
Click to expand...
Click to collapse
Check Superman ROM..u have there guide for rooting and install the ROM. It's the easiest way. U need to flash twrp with Odin.. get lost of dm verity with a flash able file in twrp ..have the ROM,add-ons ,kernel if needed on SD card and ur ready to go..in half an hour u will have root and custom rom.
https://forum.xda-developers.com/s7...overy-official-twrp-hero2lte-3-0-0-0-t3334084

gabytzubc said:
Check Superman ROM..u have there guide for rooting and install the ROM. It's the easiest way. U need to flash twrp with Odin.. get lost of dm verity with a flash able file in twrp ..have the ROM,add-ons ,kernel if needed on SD card and ur ready to go..in half an hour u will have root and custom rom.
https://forum.xda-developers.com/s7...overy-official-twrp-hero2lte-3-0-0-0-t3334084
Click to expand...
Click to collapse
thank you, ill have to try this, but do you have any idea of what could have caused that signal lose?

iTrolis said:
thank you, ill have to try this, but do you have any idea of what could have caused that signal lose?
Click to expand...
Click to collapse
Sounds like your EFS is corrupted...
*Encrypted File System (EFS) | The EFS refers to a folder called EFS which can store information like meid, imei, serial number, config, diag settings and radio settings, etc in an encrypted format at the file system level stores. So it is very neccessary for us to backup EFS before flashing ROMs.*

EasyAndroidPro said:
Sounds like your EFS is corrupted...
*Encrypted File System (EFS) | The EFS refers to a folder called EFS which can store information like meid, imei, serial number, config, diag settings and radio settings, etc in an encrypted format at the file system level stores. So it is very neccessary for us to backup EFS before flashing ROMs.*
Click to expand...
Click to collapse
thank you, and what is the best option for me now to get signal working with custom or stock rom doesnt matter?

iTrolis said:
thank you, and what is the best option for me now to get signal working with custom or stock rom doesnt matter?
Click to expand...
Click to collapse
check if your IMEI is in your device settings if not try this guide
https://forum.xda-developers.com/s7-edge/how-to/guide-how-to-fix-check-drk-imei-issues-t3379516

EasyAndroidPro said:
check if your IMEI is in your device settings if not try this guide
https://forum.xda-developers.com/s7-edge/how-to/guide-how-to-fix-check-drk-imei-issues-t3379516
Click to expand...
Click to collapse
there are both imei for both sim slots

Try this ,maybe it helps
http://recomhub.com/blog/how-to-fix...n-network-and-repair-galaxy-null-imei-number/

gabytzubc said:
Try this ,maybe it helps
http://recomhub.com/blog/how-to-fix...n-network-and-repair-galaxy-null-imei-number/
Click to expand...
Click to collapse
cant do 4 step. says not registered on network

gabytzubc said:
Check Superman ROM..u have there guide for rooting and install the ROM. It's the easiest way. U need to flash twrp with Odin.. get lost of dm verity with a flash able file in twrp ..have the ROM,add-ons ,kernel if needed on SD card and ur ready to go..in half an hour u will have root and custom rom.
https://forum.xda-developers.com/s7...overy-official-twrp-hero2lte-3-0-0-0-t3334084
Click to expand...
Click to collapse
okay, managed to install this rom, but still no signal. there should be something that i done that prevents phone to connect to network, so i just need to know what to install i think

iTrolis said:
cant do 4 step. says not registered on network
Click to expand...
Click to collapse
Put some screenshots from about phone.. network...maybe will see the problem
. Did u try another sim?

gabytzubc said:
Put some screenshots from about phone.. network...maybe will see the problem
. Did u try another sim?
Click to expand...
Click to collapse
I didn't try another sim. But now I'm using my cracked s6 edge with same simcard installed and it works fine

iTrolis said:
I didn't try another sim. But now I'm using my cracked s6 edge with same simcard installed and it works fine
Click to expand...
Click to collapse
https://www.unlockscope.com/help/knowledgebase/how-to-fix-not-registered-on-network/ try the method for S7 edge

gabytzubc said:
https://www.unlockscope.com/help/knowledgebase/how-to-fix-not-registered-on-network/ try the method for S7 edge
Click to expand...
Click to collapse
if i write that *#4636*# nothing happens, if i try to call it, it says not registered on network

iTrolis said:
if i write that *#4636*# nothing happens, if i try to call it, it says not registered on network
Click to expand...
Click to collapse
Use then *#0*#

gabytzubc said:
Use then *#0*#
Click to expand...
Click to collapse
same result, my phone sees my sim contacts, it sees which career my sim belongs, but cant connect to it, phone acts like im not using sim, i cant do any call, just tried to do these *#xx#* things without sim in my s6 edge and the result was the same as in s7 edge with sim

iTrolis said:
same result, my phone sees my sim contacts, it sees which career my sim belongs, but cant connect to it, phone acts like im not using sim, i cant do any call, just tried to do these *#xx#* things without sim in my s6 edge and the result was the same as in s7 edge with sim
Click to expand...
Click to collapse
I cant find the code for full service menu.
Try call ur operator..to try registering ur phone on network..call them from another number

gabytzubc said:
I cant find the code for full service menu.
Try call ur operator..to try registering ur phone on network..call them from another number
Click to expand...
Click to collapse
i dont think that they can help me. I am not really good in flashing, because english is not my native language so i dont know what kernel means, whats the difference between firmware and software, and even rom, but i think that i have wrong bl/ap/csc/pda or something like that. Found that F in sm g935fd means it is international, looks like i can flash any country unbranded stock rom, but somehow it wont work for me, and i cant believe i did that much damage just by clicking on unroot in superSU app..

(Problem) SW REV. CHECK FAIL. DEVICE: 2. Binary: 1.

Hello guys!
I have a big problem with my S7 edge (G935F)... The problem begins when I forget to turn off the OEM security and then I did an update to my Magisk root... When I tried to reboot my phone it doesn't pass of the first logo image, meaning that I broke the "security", so I read about that and then I flashed a firmware, an official UK (BTU I guess) firmware and then I flashed TWRP via Odin to restore a nandroid that I did when I bought my phone... It restored the EFS partition/folder and when my phone reboots I had no network signal, no IMEI... I just tried everything (I hope not) and I can't give back my IMEI and my network signal... When I try to patch the certificate to recover my IMEI via Odin in the download mode it says: SW REV. CHECK FAIL. DEVICE:2. Binary:1
I don't know if I explained it because my english is too bad, but I tried, I know that someone else have the same problem than I because I saw it. Do you find the solution? I'm out of my country and I need it so much :crying:
Regards!

Flash latest stock with csc, but skip bl section

amakuramio said:
Flash latest stock with csc, but skip bl section
Click to expand...
Click to collapse
Thank you for answer me.
I did it with three diferent stock firmwares and the problem persists (no network signal) I think that is something with the EFS folder, I restored a backup of it but is the same, I have not signal yet, but thank you!

Try clean formatting
Arachnorbit said:
Thank you for answer me.
I did it with three diferent stock firmwares and the problem persists (no network signal) I think that is something with the EFS folder, I restored a backup of it but is the same, I have not signal yet, but thank you!
Click to expand...
Click to collapse
Hey brother it happened with me too, unfortunately, I had to format my internal storage to fix this, you need to flash the latest nougat firmware via odin with csc including bl and modem and then start in recovery then format and start phone, remember you would need to put the google account which was previously there in the phone to unlock and complete setup process (very important here)

invinsible_asp said:
Hey brother it happened with me too, unfortunately, I had to format my internal storage to fix this, you need to flash the latest nougat firmware via odin with csc including bl and modem and then start in recovery then format and start phone, remember you would need to put the google account which was previously there in the phone to unlock and complete setup process (very important here)
Click to expand...
Click to collapse
Thank you! Do you know which Firmware I need to flash? Because I flashed a lot of firmwares and it didn't work! You would help me a lot if you give me the name of the one you used.
Here I have some screenshots of what appears in IMEI and SIM.

Try this thread :
https://forum.xda-developers.com/showthread.php?t=3379516
Sent from my SM-G935F using Tapatalk

Arachnorbit said:
Thank you! Do you know which Firmware I need to flash? Because I flashed a lot of firmwares and it didn't work! You would help me a lot if you give me the name of the one you used.
Here I have some screenshots of what appears in IMEI and SIM.
Click to expand...
Click to collapse
Download the latest firmware from https://updato.com (it's fast and reliable) then start in download mode, run odin with administrative privileges, select BL AP Modem and CSC (dont use home since we wish to clean fornat), and in odin uncheck auto reboot option, after the ODIN shows 'pass', disconnect the cord from pc, now you have to be very quick here since our battery is not removable, in order to shut down s7 edge from odin mode, all you have to do is press, volume down, volume up, home and power and as soon as it goes off connect the cord, the battery will show up and now it will be in charging state, after that disconnect the cord, (the phone is now clean fornatted and in off stage) and now boot into recovery to wipe data and cache using default recovery, then reboot phone and then log into your existing google account.
I know its tricky and maybe there's an ez way around it but this worked for me so I'm sharing

SOLUTION, thank you all for your answers!
AndyBury said:
Try this thread :
https://forum.xda-developers.com/showthread.php?t=3379516
Sent from my SM-G935F using Tapatalk
Click to expand...
Click to collapse
I tried it at first instance but I could not because my Bootloader was updated to the "U2" version, what I did after that was search the Combination file updated to the U2 bootloader, after a long search I found it.
In resume, The solution is what the OP of that thread says but if you have the same problem like me with the Updated bootloader you need this file instead of the files that are shown there:
https://androidfilehost.com/?fid=890129502657582963
Thank you all! I hope this can help y'all that has this problem! :fingers-crossed:

i am same problem ,how to fix it?

help me

jed0123 said:
help meView attachment 4491615
Click to expand...
Click to collapse
You already fixed the problem I guess, you only need to flash the same firmware that your phone had before flashing the Combination file.

can not

Help
How to know what was my old firmware version? when I try to flash i get SW REV. CHECK FAIL. DEVICE: 2. Binary: 1
And I can't start phone because I'm getting FRP lock. Please help me?
Edit: I downloaded latest firmware and flashed it.

Same problem with s8+
amakuramio said:
Flash latest stock with csc, but skip bl section
Click to expand...
Click to collapse
I have the same problem with my S8+ SM-G955F
I flashed the latest firmware without BL....now my phone is working fine...but I dont have SIGNAL.. any help will be appreciated..

Moved
Thread moved to Questions and Answers.

hello.
im having the exactly same issue....
Im from Brazil, i was trying to install the stock rom then ill upgrade to android 8.0....(my android does not update becouse it from VIVO PROVIDER, my english sucks...hope you understand)
i open odin, select all files, of a stock rom ZTO G935F, then it just give me this error...
how can i fix it? i just want to install android 8.0 nougat =(
thx alot for trying help me!!!

i fixed my phone by skipping the booloader section...
you're a life saver brother...
Thank you
Regards

Arachnorbit said:
Hello guys!
I have a big problem with my S7 edge (G935F)... The problem begins when I forget to turn off the OEM security and then I did an update to my Magisk root... When I tried to reboot my phone it doesn't pass of the first logo image, meaning that I broke the "security", so I read about that and then I flashed a firmware, an official UK (BTU I guess) firmware and then I flashed TWRP via Odin to restore a nandroid that I did when I bought my phone... It restored the EFS partition/folder and when my phone reboots I had no network signal, no IMEI... I just tried everything (I hope not) and I can't give back my IMEI and my network signal... When I try to patch the certificate to recover my IMEI via Odin in the download mode it says: SW REV. CHECK FAIL. DEVICE:2. Binary:1
I don't know if I explained it because my English is too bad, but I tried, I know that someone else has the same problem than I because I saw it. Do you find the solution? I'm out of my country and I need it so much :crying:
Regards!
Click to expand...
Click to collapse
try custom ROMs and I'm sure they have update bootloader and modem use that and its work in my phone

jed0123 said:
can notView attachment 4491806
Click to expand...
Click to collapse
Hello, how did you solve it?

Help I keep getting SW REV. CHECK FAIL. DEVICE:3. BINARY:2 when trying to downgrade BL CP for G935W8