Develop Bugs

[Q] Insert Sim to Access Network Service.. IMEI Null

Hey Guys,
I have an AT&T Model SGH-1317 Note 2. For use on other networks, I unlocked the phone using the *#197328640# menu option. However, the phone failed to start the hot spot stating Mobile data was unavailable or Invalid Sim. However, I am able to tether perfectly using the same sim on an another S3 so I was sure its nothing to do with the sim or network operator settings.
I looked up and found XDA website with tons of information. I assumed my phone was locked by AT&T. Hence, I rooted the phone using CF-Auto-Root, backed up complete data using Titanium and using Rom Manager I installed the Crash Aroma 4.1.2 Rom. I wiped the data and cache 3 times as suggested. However, after the boot I am unable to connect to any mobile network. A Click on Mobile Network says "Insert Sim Card to Access Network Services". Dialling for IMEI number prompt a Null.
During Installation I noticed the Crash ROM has overwritten the Radio.. and I am assuming this is were the problem lies. but I leave it you experts.. Request Help!
Sunil.

What carrier are you using the device on?
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2

cdshepherd said:
What carrier are you using the device on?
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2
Click to expand...
Click to collapse
Am currently on Du - A network in Dubai, UAE. I have been reading more forum information and some suggest that this may be related to the EFS folder getting corrupted which may cause the IMEI number to fail. Some suggest that there are software to rebuild this information by using the IMEI number behind the handset..
I also noted that my phone model has also changed to GT-7100 instead of SGH-1317, Wonder if the Crash ROM was apt?
Would you suggest installing a Jedi Rom specifically built for SGH-1317... or is the damage already done?

Back Online
Since I found no replies.. I had no choice but to give it to the Pros.. I handed my phone day to one of the Unlocking experts at a mobile store… He was confident that his technicians would resolve this. But after 2 Days, they have given up.. He suggested the phone would fetch me US$ 10 if someone used it as a demo unit at a mobile shop..
I was sure this was something to do with the Modem, IMEI and the all important NV folder. I was able to find a Stock ROM for the SGH-1317 and I also found a link at XDA about using EFS pro to change the IMEI.
Using Odin software, I flashed the phone with the stock rom. Unfortunately, there was one error when it tried to communicated on com1. Having no choice, I continued. Restarting got the AT&T style boot but it again froze on the Samsung screen. Dreading the communication error, I restarted several times with no results. Finally I realised if would be due to the cache and user data. I reset the phone to factor settings wiping out the user data and Whola.. The phone sprang back up..
Lessons learnt.. Backup your rom and data before playing with custom roms. Read Read Read and don’t flash in the middle of the night..
Since I am back online, I plan to stick to the stock and crappy 4.1.1 with all the AT&T dead weight. Will live without the ability to Tether until my fingers get warmer.. It won’t be long as I am already bit by the Custom Rom Devil..
Don't Give Up Easy..:good::victory:

Flashaholics anonymous will help.
Sent from my SGH-I317 using xda app-developers app

sunilgonsalves said:
Using Odin software, I flashed the phone with the stock rom. Unfortunately, there was one error when it tried to communicated on com1. Having no choice, I continued. Restarting got the AT&T style boot but it again froze on the Samsung screen. Dreading the communication error, I restarted several times with no results. Finally I realised if would be due to the cache and user data. I reset the phone to factor settings wiping out the user data and Whola.. The phone sprang back up..
Click to expand...
Click to collapse
Please I am having the very exact same issue and can't seem to have it fixed
Using CMW I also flashed it back to stock rom, didnt have any problem or errors doing it but im still getting No SIM Inserted. I have deleted cache and user data several times... Tried flashing CM10 and CrashRom see if they made a difference and still No Sim Inserted... tried 3 different kernels and still same issue

I have the exact same problem since yesterday. I've tried everything and anything to no avail. I'm very close to returning the phone.
I would really appreciate any input.

Same issue
I flashed crash rom 4.5, over the stock kernel and it gave me that same message. I've tried everything I could think of, which included everything in this thread to no avail... any further advice would be greatly appreciated.

imei null baseband unknown, {insert sim to access network error} PLEASEEEE HELPPP ME
i rooted using auto root and installed xposed framework and snapshare and snapprefs :crying:
after that i tried puttin off the airplaine mode and it didnt happen
then the error started to show insert sim to access network god i need help.

sukhraj kohli n7100 said:
i rooted using auto root and installed xposed framework and snapshare and snapprefs :crying:
after that i tried puttin off the airplaine mode and it didnt happen
then the error started to show insert sim to access network god i need help.
Click to expand...
Click to collapse
Your username suggests that you have the N7100 device ??
If so. ..you are in the wrong place for support. ..As this is the SGH-I317 section.
If you are showing IMEI NULL with no baseband you may have to restore your backup image to correct the problem. .
If no backup image exists. ..you will need to flash a factory N7100 image from your section.
Look for the return to stock thread for your specific device and that should fix you up...
The CF AUTO ROOT files are device specific. ..so I hope you haven't damaged the partitions.
Good luck. ..g
Edit:
This will help. ..and will place you in the right section. ..
Just go to page 1...good
http://forum.xda-developers.com/showthread.php?t=2230250

[Q] my note 2 n7100 shows no service even with a sim card inserted

guys please help to solve this problem...........
i have n7100 model and it shows NO SERVICE even with a sim card inserted ...... i have checked imei number is displayed in the setting and on searching network manually after that my network name appears but upon selecting it it says unable to connect...... so what to do guys please help.......confused:

vikas145 said:
guys please help to solve this problem...........
i have n7100 model and it shows NO SERVICE even with a sim card inserted ...... i have checked imei number is displayed in the setting and on searching network manually after that my network name appears but upon selecting it it says unable to connect...... so what to do guys please help.......confused:
Click to expand...
Click to collapse
please help me guys.....

Help us to help you. How did it happened? you changed something? a rom? are you rooted unrooted? just tell us the history of the problem.

c1oud said:
Help us to help you. How did it happened? you changed something? a rom? are you rooted unrooted? just tell us the history of the problem.
Click to expand...
Click to collapse
yes my phone is rooted......what was happened that after installing aliance rom what i did i started the installation of paranoid rom from the file manager by clicking on the file..... then phone rebooted to recovery and installation started but aroma installer .... then i stopped everything just by pulling the battery out ..... and then flash the cwm6-root-n7100 custom recovery file from odin and upon then i am facing this problem....
in settings>about phone>status > it says
network - vodafone
signal strength - -81 dbm 16 asu
mobile network type -- EDGE
service state ---- OUT OF SERVICE
mobile network state ----- disconnected
imei no. is there
......

vikas145 said:
yes my phone is rooted......what was happened that after installing aliance rom what i did i started the installation of paranoid rom from the file manager by clicking on the file..... then phone rebooted to recovery and installation started but aroma installer .... then i stopped everything just by pulling the battery out ..... and then flash the cwm6-root-n7100 custom recovery file from odin and upon then i am facing this problem....
in settings>about phone>status > it says
network - vodafone
signal strength - -81 dbm 16 asu
mobile network type -- EDGE
service state ---- OUT OF SERVICE
mobile network state ----- disconnected
imei no. is there
......
Click to expand...
Click to collapse
And finally you have paranoidandroid or back again in the previous rom? With a little search in the forum i found this "Hey...I found out why I didn't have service and was able to fix it. When I had flashed AOKP, there is a setting in the Mobile Networks screen to change the CDMA subscription to RUIM/SIM. Somehow (probably playing around) I changed it from the NV to RUIM/SIM. THEN, I nandroided back to stock, and had no service. As far as I know, that CDMA Subscription option isn't on the STOCK ROM...so I was baffled. Good thing I remembered what I did."
Try it and report..!

c1oud said:
And finally you have paranoidandroid or back again in the previous rom? With a little search in the forum i found this "Hey...I found out why I didn't have service and was able to fix it. When I had flashed AOKP, there is a setting in the Mobile Networks screen to change the CDMA subscription to RUIM/SIM. Somehow (probably playing around) I changed it from the NV to RUIM/SIM. THEN, I nandroided back to stock, and had no service. As far as I know, that CDMA Subscription option isn't on the STOCK ROM...so I was baffled. Good thing I remembered what I did."
Try it and report..!
Click to expand...
Click to collapse
sorry brother..... but not able to find out any these options in the settings.......
currently i am on aokp rom paranoid rom (4.2.2)
what to do .....

vikas145 said:
sorry brother..... but not able to find out any these options in the settings.......
currently i am on aokp rom paranoid rom (4.2.2)
what to do .....
Click to expand...
Click to collapse
i'd recommend that you flashed again your previous rom to see if it is rom related or not. I ve read somewhere that some people had problems with the signal when flashing aokp.

c1oud said:
i'd recommend that you flashed again your previous rom to see if it is rom related or not. I ve read somewhere that some people had problems with the signal when flashing aokp.
Click to expand...
Click to collapse
oeky ... i have backup of my previous rom( stock rom)

vikas145 said:
oeky ... i have backup of my previous rom( stock rom)
Click to expand...
Click to collapse
i am on stock rom now..... but the problem is not solved yet it still the same..... no signals
Service State >>> OUT OF SERVICE
Moblie Network State>>> DISCONNECTED

vikas145 said:
i am on stock rom now..... but the problem is not solved yet it still the same..... no signals
Service State >>> OUT OF SERVICE
Moblie Network State>>> DISCONNECTED
Click to expand...
Click to collapse
Flash stock using PC Odin

anoopva said:
Flash stock using PC Odin
Click to expand...
Click to collapse
i going to take it to the samsung cc....... lets see what they will say about this problem

I am suffering a very similar and strange problem. I have a Dmc3 deodexed and rooted Rom with NEDLK1 baseband (3 ITA operator) since 3 months. I have done nothing special (no new apps nor flashes) in the latest weeeks. I have never flashed any other ROM. But 2 days ago I saw NO service. I have correct imei, could even surf the web but no telephone functions. Rebooting the phone did not work.
I thought of a SIM card issue and yesterday I asked my operator for a new sim. While I was waiting the new sim to be enabled, today I pushed in my Note 2 another SIM by another operator. After some hours I had the same trouble with this SIM.
So the problem is the Telephon. I don't know if hw or sw, but there is an issue.
Now to see what may be, first I changed the baseband Modem and flashed a stock XXDLK7 and inserted the new Sim inside. Now I will wait and see.
In case of continuing issue, I will try and go back to full stock operations.
Inviato dal mio GT-N5100 con Tapatalk 4

Hello guys. I had the same problem, and it was a hardware problem. The solution is really simple: put onto the left of the camera, inside the chassis, a small piece of papero of 3 mm. It's enough to strenght the connections of the flat of the SIM card connectors to the motherboard

Ace 2 Unknown baseband/blank imei/phone unknown.

Cant fix it even tried 10 diffrent firmware..But cant restore baseband or imei..any1 know how to fix it ?

vhd99 said:
Cant fix it even tried 10 diffrent firmware..But cant restore baseband or imei..any1 know how to fix it ?
Click to expand...
Click to collapse
it happened to me once on my s advance. what i did is i wipe everything using twrp except extsdcard then reinstall my custom firmware which is pure vanila and then reboot. my baseband and imei is back to normal i hope it will do the same to you since they are almost the same.

bruce69 said:
it happened to me once on my s advance. what i did is i wipe everything using twrp except extsdcard then reinstall my custom firmware which is pure vanila and then reboot. my baseband and imei is back to normal i hope it will do the same to you since they are almost the same.
Click to expand...
Click to collapse
not worked bro :/

It happens with me as well(unknown imei & imei sv)... & get fixed by reboot. But it happens only when I try to activate Airplane mode & the phone hangs in the process...
If installing stock firmware doesn't fix ur prob., then give it to care centre coz it's not in ur hands now...Only they can solve it out!!

To fix unknown baseband and null imei, dial *#197328640# and choose [6]Common and select [1]FTM and press [2]FTM: OFF 2 times... and reboot your phone... and dial *#06# to check if your imei appears...

I got the same problem!
I have the same problem except my imei does show, my baseband shows xxxx and my phone rarely connects to t-mobile but no mobile data, ive been through 3 rom's, no difference and now back to stock jelly bean, also when i typed that dialer code in it didnt come up with FTM so plz help!!!

Base band unknown
Drew Tavares said:
I have the same problem except my imei does show, my baseband shows xxxx and my phone rarely connects to t-mobile but no mobile data, ive been through 3 rom's, no difference and now back to stock jelly bean, also when i typed that dialer code in it didnt come up with FTM so plz help!!!
Click to expand...
Click to collapse
Did u solve your problem?

No network signal w/ 2 sim card

Here's my problem, I'm on latest cm10.2 nightly and I don't have any network signal...I tried with 2 different sim cards, both can be read with a "Sim Card Reader" from the Playstore but I cannot send/receive sms or call with both sim cards...I tried to enter manually the APN but still nothing...the sim card tray is not broken in any kind...what's the problem? I just reinstalled the stock firmware but no chance, no signal at all...that's weird!!!
Any help or fix are welcome
Sent from my LG-E973 using XDA Premium 4 mobile app

Anyone have or had the same issue? I just need to send sms through Telus network because i don't have wifi access at work...mobile data is not important for me...
Sent from my LG-E973 using XDA Premium 4 mobile app

JasonBourne.Qc said:
Anyone have or had the same issue? I just need to send sms through Telus network because i don't have wifi access at work...mobile data is not important for me...
Sent from my LG-E973 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I've a E975 version and last week I pick up my phone and it was with no signal, reboot and nothing happen, went to a store and my SIM card was ok and a different network SIM card was not working too. The phone was not able to "read" the PIN code (my SIM card PIN is disabled).
I've flashed the ROM again (Savyrom) and I had a subsystem crash and afterwards kernel crash's, the stock ROM backup and kdz installation have not helped either.
Now I've sent it to LG support service because after a factory reset i've lost my IMEI and the phone was rebooting 30s after starting up and I was not in a mood to try to restore the Freegee IMEI backup.
Do you have the IMEI number?

rimsilva said:
I've a E975 version and last week I pick up my phone and it was with no signal, reboot and nothing happen, went to a store and my SIM card was ok and a different network SIM card was not working too. The phone was not able to "read" the PIN code (my SIM card PIN is disabled).
I've flashed the ROM again (Savyrom) and I had a subsystem crash and afterwards kernel crash's, the stock ROM backup and kdz installation have not helped either.
Now I've sent it to LG support service because after a factory reset i've lost my IMEI and the phone was rebooting 30s after starting up and I was not in a mood to try to restore the Freegee IMEI backup.
Do you have the IMEI number?
Click to expand...
Click to collapse
Sure I have the IMEI but I think some m9kefs.img are broken because when i try to restore efs with freegee, it gives me error...
I will try kdzing back to Fresh & Clean stock firmware...i have the imei but no network...

rimsilva said:
I've a E975 version and last week I pick up my phone and it was with no signal, reboot and nothing happen, went to a store and my SIM card was ok and a different network SIM card was not working too. The phone was not able to "read" the PIN code (my SIM card PIN is disabled).
I've flashed the ROM again (Savyrom) and I had a subsystem crash and afterwards kernel crash's, the stock ROM backup and kdz installation have not helped either.
Now I've sent it to LG support service because after a factory reset i've lost my IMEI and the phone was rebooting 30s after starting up and I was not in a mood to try to restore the Freegee IMEI backup.
Do you have the IMEI number?
Click to expand...
Click to collapse
So, here's my problem now...
I just reinstall stock jb firmware on my phone, I can see the IMEI in the setting but I don't have any signal from my carrier...
I have an EFS backup but I think it's broken...Anyone can open it and verify if it's true? I can send those 3 files...

JasonBourne.Qc said:
So, here's my problem now...
I just reinstall stock jb firmware on my phone, I can see the IMEI in the setting but I don't have any signal from my carrier...
I have an EFS backup but I think it's broken...Anyone can open it and verify if it's true? I can send those 3 files...
Click to expand...
Click to collapse
My advice is to send the phone to LG support, maybe you have a SIM card hardware problem... At least you don't have system crash's and reboots like me.
I was with IMEI too I'm almost 100% sure that a lost it after the hard reset.

rimsilva said:
My advice is to send the phone to LG support, maybe you have a SIM card hardware problem... At least you don't have system crash's and reboots like me.
I was with IMEI too I'm almost 100% sure that a lost it after the hard reset.
Click to expand...
Click to collapse
Hummmm...that's not a hardware problem because the phone recognize the sim card (sim serial number, sim state is ''Ready'', sim country ISO: Ca)
I surely think it's related to the EFS partition but I got the IMEI...that's weird
And I can't send him to LG support because the warranty is over...

JasonBourne.Qc said:
Hummmm...that's not a hardware problem because the phone recognize the sim card (sim serial number, sim state is ''Ready'', sim country ISO: Ca)
I surely think it's related to the EFS partition but I got the IMEI...that's weird
And I can't send him to LG support because the warranty is over...
Click to expand...
Click to collapse
sir i have got the same issue in my f180K...picking up sim but not caching singla.this problem occur after installing a vietnamees rom.do u find any ???thanx

Bump, same problem. Doesn't matter which ROM I install. I have signal and mobile data, when I'm in a place with very good reception. But if the reception is not very good, then boom, no signal at all.... :/ I have IMEI as well. Have already tried flashing v20 EUR baseband, no help.
Has anybody found a solution to this maybe?

same problem on f180l.
no imei no signal no sim card working.

My problem shows up when from android 6 i make clean flash with flash tool 2014 the official rom is e975 europe my phone after that i have imei normal but i don't have signal no service and when i tried to go to phone settings from hidden menu (*#*#4636#*#*) it says this application does not work on this device i tried to change the network manually with no luck tried to restore efs nothing...tried manual apn settings....new card from diferent carrier nothing...pc suite has restore upgrade errors...pass all the upgrade with no success, what else i can try????

[Solved] IMEI showing as Unknown - No service

Hi everyone.
Recently I have had some issues where sim cards are not working on my phone. At first I thought it was an issue with the sim cards but when I tried the sim in a different phone, it worked fine. I tried numerous restarts, taking the sim out and placing it back in (in case there was an issue with the contacts/sim tray) but this has not solved the issue. By chance I was looking at the phone identity menu and noticed that the IMEI and the IMEI SV fields both say unknown but the device serial number is fine.
I restarted the phone into download mode and checked the System info menu and IMEI number is displayed there but for some reason it is missing in the actual android OS hence I cant connect to the mobile network to make calls etc.
This all started recent after I had come back from abroad (had been using a foreign sim) and tried to use my UK sim. Up until that point, the phone worked fine with the UK and foreign sim. After inserting my UK sim, there was no signal. I got home and tried the sim in my other phone and it worked fine.
I have not modified the phone in anyway (other than flashing an official RUU to fix a boot loop issue - see here ) and it is boot locked and not rooted. After fixing the bootloop issue, I have applied all available OTAs that my phone detected automatically which upgraded the android version to 7.0 (OS 4.28.401.3).
I have tried factory resetting using the menu (not recovery mode) and this has not solved the issue. Any ideas as to how I can fix this IMEI issue?
Many thanks
Rob

Have you checked the apn settings are correct?. Have you checked other UK sim cards in your device that are known to be working?. Do you use a simcard adapter?.

shivadow said:
Have you checked the apn settings are correct?. Have you checked other UK sim cards in your device that are known to be working?. Do you use a simcard adapter?.
Click to expand...
Click to collapse
Yep.. tried other simcards thats work in other phones but they wernt working on my phone.. most likely due to the missing IMEI. I also noticed that the colour of the icons on the pulldown tray were red instead of blue and the phone was sluggish when toggling wifi on and off or entering/leaving Airplane mode.
I managed to fix the issue in the end by downloading an RRU and flashing it from SD card. Everything works ok now.
Thanks for your contribution :good:

shimozu said:
Yep.. tried other simcards thats work in other phones but they wernt working on my phone.. most likely due to the missing IMEI. I also noticed that the colour of the icons on the pulldown tray were red instead of blue and the phone was sluggish when toggling wifi on and off or entering/leaving Airplane mode.
I managed to fix the issue in the end by downloading an RRU and flashing it from SD card. Everything works ok now.
Thanks for your contribution :good:
Click to expand...
Click to collapse
Hi friend, I am actually facing the same problem. can you please guide to the link of the RRU you have used to resolve the problem.
Thanks in advance.