I went to turn on my phone and got no signal. I searched settings to connect to mobile network but it says no sim installed and also imei is null. When into service mode but it's blank. Tried to reinstall original rom through kies but fails.
I think you got a unofficial build of the phone (merchant buys all the parts of the device and put it together at home, not samsung's factory)
Where did you get that phone?
Sent from my SM-G900H using Tapatalk
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My i9500 has driven my crazy since yesterday, I even stayed up all night trying to find a way to restoring its IMEI. So here's the problem:
I was playing a game called "Friendly Fire" and decided to turn off its notifications using Application Manager. Everything was fine until a few hours later when I opened up my phone and saw the mobile signal was gone, only a circle with the diagonal dash inside it left. At that time I thought it was fine but then suddenly it popped up the message "Please enter SIM card unlock number" or sth like that, which was an error indeed because my i9500 is an unlocked version. I though it was the mobile network who locked the SIM, but when I tried putting the SIM into other phones, they all worked! And so I started to find a way to unlock my i9500 by ServiceMode Menu but I could never reach the ServiceMode Menu, it only showed a blank screen. I checked my IMEI and it now said "null/null". I had never rooted or flashed any ROM on it so it was really really strange. So I reached a topic on "how to solve the null/null IMEI" on i9500 because it seemed that many people got this problem. However, nothing helped I even rooted my phone to see whether I can back up then restore the 'efs' folder. Well, I did manage to do so but the IMEI would not change at all. The strange thing is that when the phone was just booted up, if I enter *#06# the IMEI shows "null/null", but if I enter *#1234# first then *#06# it shows the generic IMEI (0049...), which was useless as well. I tried different methods, flashing to different official stock rom, but nothing worked. Also, when I flashed an official stock rom, Kies did not show the right region of the firmware but "XXX" for every firmware I tried. And of course, my mobile signal was lost so I could not make any call/text/3G/LTE/etc., but the rest (wifi, bluetooth, gaming, etc.) was okay, it is basically an ipod touch right now
I wonder if anyone can help me with my problem? I know my real IMEI number (at the back of the phone) and that's it. I bought it from another country so it would not be possible for me to bring it to the Samsung store where I got it from. I could not remember the country where its first firmware came from Is there any way to find out that?
Many thanks for reading my trouble :crying:
Well this weird, I am wondering if an android virus could do that....
Sent from my GT-I9505 using XDA Premium 4 mobile app
Strange!!!! Is it original or china copy??
Sent from my GT-I9500 using Tapatalk 4
Black_Lion said:
Strange!!!! Is it original or china copy??
Click to expand...
Click to collapse
I bought it in the U.S. in July, from an official Samsung store. Well, the box containing the phone and the phone itself were "made in China", I thought most products have those words? It would be ridiculous if that is the problem because it also has a line like "Korean product"...
I wonder if Octopusbox or SPTbox may fix the problem? I don't know those two things very well though.
I had the same problem on a different samsung phone (Note 2) and i was getting imei 0049 or something like that, Basically my imei had changed or gone. The issue i found out to be a baseband issue so what i had done was downloaded a few compatible basebands and flashed them via odin and eventually got my imei back. There is also this link for you to have a look at http://forum.cyanogenmod.com/topic/77400-booting-issues-and-imei-loose/ just in case it helps. Hope you get sorted.
solve problem
According to your description， you can have a try resert your Samsung galaxy s 4 and then restart it to see weather it is OK? If it still not fine, send it to Samsung After-sales service
Hello,
I bought my Note 3 mobile and decided to flash C-Rom!
At the morning of one day I flashed the rom successfully. Later I installed all apps I wanted. I have my phone rebooted a lot of times with no problem. Some time at the afternoon of the same day I pick up the phone to stare at it! I activated the LTE option and deactivate it again. This was not the first time of doing it! After that the network signal was missing! I rebooted the phone, but it doesn't ask me for a PIN any more. I used my sim at another phone and it asked for a PIN. I used another SIM at my phone but it didn't ask for a PIN.
After dialing *#06# at Dialer a popup dialog shows up. The title of this dialog is MEID and the content is B0000000!
At settings>About phone>Status> the MEID is full of zeroes but the IMEI seems OK.
At the same screen i see the following:
Network - Searcing for Service
Mobile network type - Unknown
Mobile netwok state - Disconected
Service state - Out of service
My phone number - Unknown
MIN - Unknown
PRL version - Uknown
ICCID - Unknown
Thanks everyone in advance
Very strange.... without doing anything like flashing stock or modem?????
TheLiTTle said:
Hello,
I bought my Note 3 mobile and decided to flash C-Rom!
At the morning of one day I flashed the rom successfully. Later I installed all apps I wanted. I have my phone rebooted a lot of times with no problem. Some time at the afternoon of the same day I pick up the phone to stare at it! I activated the LTE option and deactivate it again. This was not the first time of doing it! After that the network signal was missing! I rebooted the phone, but it doesn't ask me for a PIN any more. I used my sim at another phone and it asked for a PIN. I used another SIM at my phone but it didn't ask for a PIN.
After dialing *#06# at Dialer a popup dialog shows up. The title of this dialog is MEID and the content is B0000000!
At settings>About phone>Status> the MEID is full of zeroes but the IMEI seems OK.
At the same screen i see the following:
Network - Searcing for Service
Mobile network type - Unknown
Mobile netwok state - Disconected
Service state - Out of service
My phone number - Unknown
MIN - Unknown
PRL version - Uknown
ICCID - Unknown
Thanks everyone in advance
Click to expand...
Click to collapse
The reason is unknown but it seems like your phone lost a valid IMEI/baseband.
Can you check the Baseband version?
Try to flash the stock firmware, or flash the baseband for your device.
The problem suddenly appeared and that's what makes me feel uncomfortable. The baseband number is N9005XXUENC2. I will try to flash whole firmware, but does anyone know how can I flash only the baseband? I don't want to stay with the original ROM!
TheLiTTle said:
The problem suddenly appeared and that's what makes me feel uncomfortable. The baseband number is N9005XXUENC2. I will try to flash whole firmware, but does anyone know how can I flash only the baseband? I don't want to stay with the original ROM!
Click to expand...
Click to collapse
Extract modem.bin and NON-HLOS.BIN files from the stock firmware, and flash via Odin.
Sent from my SM-N9005 using Tapatalk
It is my first Samsung. Could you be more specific? How can I extract those? Can you guide me through?
TheLiTTle said:
It is my first Samsung. Could you be more specific? How can I extract those? Can you guide me through?
Click to expand...
Click to collapse
Do you have the stock firmware file already?
Sent from my SM-N9005 using Tapatalk
Finally I was able to solve the problem. It is a problem with C-Rom and 4g option. I am going to write a new reply by tomorrow and also to the forum. I appreciate the help guys.
Thanks a lot
The problem is with the LTE activation/deactivation.
I am from Greece with COSMOTE provider. Here, in Greece, at the moment we have to pay an extra fee to the provider in order to have the option of using 4g. The steps as I believe are the following:
1). I am not paying this fee at the moment so I am not able to use 4g.
2). I activate 4g and immediately I deactivated it. I did not want to open it, just touching the selection at the notifications. This option is at the notifications when you slide down the notification bar using 2 fingers.
3). Then the signal goes off and I had to re-flash stock rom once again before flashing the custom rom. The problem has to do only with the signal and everything else works as charm in the C-ROM.
The C-ROM version which has this problem is this C-RoM-KK-v7.1-20140622-hlte.zip
Before you say anything about an EFS folder, I've already tried and restored that.
Used to have Baseband Version Unknown, IMEI Unknown and No Signal, so I though, Needs EFS Repair!
Did the Repair, IMEI and Baseband are now showing, but still no Signal...
I know it's reading the SIM, as the ICCID shows up Setting>About Phone>Status.
Network and Mobile Network Type Say Unknown.
Tried to repair network, no go.
Flashed Firmware G900VVRU2BOG5 (Stock) Twice, no good.
What else could be the Issue? Network type is set to Global.
I have a used Rogers Galaxy S4 I337M (from Ebay) and I have purchased an unlock code from a third party site. The problem is I cannot for the life of me get the phone to prompt me for the unlock code. I've tried Bell and Fido SIMs with no luck (they work on the phones I pulled them from just fine).
I've tried flashing stock 4.2.2 and trying all of the dialer codes I could find. I've also used Samsung Kies to restore the latest lollipop firmware, but this still does not prompt and the dialer codes don't work here also.
I've also tried going into the dialer service menu (*#0011#) and enable PERSO SHA256 ON and reboot, and still no prompt. Foreign SIMs either show "Unregistered SIM" or "Emergency Calls Only".
The only way I managed to generate a prompt was to do an NV rebuild from the service menu, and the unlock code said it was successful, but the phone still refuses to get any service. The phone does see the networks when I got to Network Operators, but it fails to register or says "unable to connect, try again later".
Can anyone help me get this phone working?
You confirmed that the model # is sgh-i337m in download mode?
The imei from the dialler (*#06#) matches the imei on the label under the battery?
The imei from the dialler is blacklisted?
Tried flashing the latest ROM using Odin?
Tried unlocking the phone using the free method with regionlockaway?
audit13 said:
You confirmed that the model # is sgh-i337m in download mode?
The imei from the dialler (*#06#) matches the imei on the label under the battery?
The imei from the dialler is blacklisted?
Tried flashing the latest ROM using Odin?
Tried unlocking the phone using the free method with regionlockaway?
Click to expand...
Click to collapse
Thanks for your reply, looks like the imei is blacklisted (hadn't thought of that). I guess I'll see if I can get myself a refund.
If you want to keep the phone, try to have the seller get it removed from the blacklist database.
How can I recover "UNKNOWN" and "NULL/NULL" Base Band & IMEI on Note3 SM-N900A
I sold a Samsung Galaxy Note 3 SM-N900A to someone online. The LCD was bad so I did a hard reset of the phone but forgot to remove my google account. The person who bought the phone installed a new LCD but was locked out. So instead of contacting me to help, they decided to try and root the phone. but they did not back up any files and erased the EFS file and lost the IMEI number and Base Band. This person then returned the phone back to me claiming it doesn't work and they removed the LCD possibly so I couldn't see what they did. I purchased a new LCD so I could refurbish it but once I turned it on it powered up and showed me a pad lock unlocked logo underneath it said custom. after it loaded in the settings under about device I noticed base band saying UNKNOWN, IMEI was also saying UNKNOWN so I dialed *#06# and that said "null/null" I used Odin and the 4.4.2 stock rom to flash the firmware everything went smooth and no more padlock saying custom.... however the imei and base band are still saying UNKNOWN. any help to get this back on track so I can use it would be great. I am not a noob but I am also no expert so please provide instruction if you can assist me. thank you in advance...!!!
Google search ? Xda search ?
Step one restore your backed up EFS folder.
Baseband flash via Odin. See multiple identical posts .
Sent from my SM-N930F using XDA-Developers Legacy app
there are no EFS files to restore from. I don't think the phone was rooted I think it was just a custom ROM installed but they didn't back anything up. I have never rooted or jailbroken a phone I used Odin twice. once to flash a G-s2 and to install the OEM firmware for this phone. I need to know the process on how to restore the lost IMEI and baseband These steps I don't know where to start. I see people fixing this problem but do not see clear instructions to follow. I am good at fixing computer hardware and software but phone repair I am new to.
Lost IMEI service center repair .
Baseband see thread in General section .
Sent from my SM-N930F using XDA-Developers Legacy app
Where did you get 4.4.2 since AT&T never released a full Odin firmware flash.
The AT&T note 3 forum is here: https://forum.xda-developers.com/note-3-att