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[Q] P3100 can't make or receive calls after official update. What to do?

The provider specific SIM menu is available, but the tablet shows no signal. Even when it shows one, the signal disappears the moment I try to make a call or am about to receive one. The caller can still hear ringing while the tablet lists the call as missed call.
My father's Galaxy Tab 2 7" automatically tried updating through wifi but failed (I presume), and the SIM functions stopped working.
After many attempts I updated it through OTA to the latest firmware, shown as PDA:NA3 / PHONE:LK1 / CSC:NB1 (INU) in Kies, and the Android version was listed as 4.1.2., but the problem persisted.
I tried to wipe cache. It didn't sort the problem.
Then I Installed CWM 6.0.7 and Cyanogenmod 10.1 (JB 4.2.2) using this tutorial: wiki.cyanogenmod.org/w/Install_CM_for_p3100
Still it can't make or receive calls.
Baseband version is listed as p3100ddclk1
What to do?
Is this a hardware or firmware problem?

Hey brother,
Even I am facing the same order on my tab but in a different way. I can recieve signal for the carrier Tata Docomo but other carrier are showing any sign of life
But sometimes while on tata docomo , I lost signals while using data or when I got a call. And one more thing, I was on a trip to a hill station and there I was getting signals from Vodafone perfectly (my main service provider). But when I came back from there I ain't receiving any peice of signals from vodafone and Docomo is working as usual with few network losses during the day.
PS.- I ain't received any solution yet, still sticking up with that problem.
PPS.- The tab I brought is in used condition with the fact that the tab has that problem in it. (I need not to pay much lol)
Btw I think if we can flash new firmware (official) with odin with modem file, It may sokve our problem. TRY FLASHING FIRMWARE, I cant as I am low on speed

xanubhavx said:
Hey brother,
Even I am facing the same order on my tab but in a different way. I can recieve signal for the carrier Tata Docomo but other carrier are showing any sign of life
But sometimes while on tata docomo , I lost signals while using data or when I got a call. And one more thing, I was on a trip to a hill station and there I was getting signals from Vodafone perfectly (my main service provider). But when I came back from there I ain't receiving any peice of signals from vodafone and Docomo is working as usual with few network losses during the day.
PS.- I ain't received any solution yet, still sticking up with that problem.
PPS.- The tab I brought is in used condition with the fact that the tab has that problem in it. (I need not to pay much lol)
Btw I think if we can flash new firmware (official) with odin with modem file, It may sokve our problem. TRY FLASHING FIRMWARE, I cant as I am low on speed
Click to expand...
Click to collapse
@xanubhavx Where can I download the modem file for P3100?

asraf5285 said:
@xanubhavx Where can I download the modem file for P3100?
Click to expand...
Click to collapse
I am not sure about the Model file alone but you can download whole firmware from sammobile.com, they have firmware of all Samsung devices region wise, just login to enjoy better speed.
Hope this helps.

xanubhavx said:
I am not sure about the Model file alone but you can download whole firmware from sammobile.com, they have firmware of all Samsung devices region wise, just login to enjoy better speed.
Hope this helps.
Click to expand...
Click to collapse
i already download the firmware for Malaysia and how to get the modem file from it? Should I extract it and search in?

Problems with mobile data s6 duos

Hi there,
Recently, I've been having mobile data problems with my s6 duos
I've got an s6 duos from globe, so 1 sim slot is locked to globe and the other sim slot is open line. Recently I've been having problems connecting to mobile data using my smart sim card. In the data service network, the option to choose smart for mobile data is locked/unavailable, so I can only use my globe simcard for mobile data. I've tried using a different sim but no luck.
I was able to use my smart sim for mobile data in the past. Though I have no problem receiving texts or calls with my smart sim
Advice is much appreciated
Thanks
Also, in APN under my smart sim, I get this message
"Unable to view the access point name settings. Access is restricted for the current user profile."
i64.tinypic.com/2i1kprd.png

My guess... flash BTU ... latest UK g920F firmware. Its kind of imposible to lock 1 sim and the 2nd sim to be unlocked.
Edit: you may lost warranty after this... and this is only my guess.
Edit2: flash a costom recovery... do a full backup so if something goes wrong you restore everything

lummujaj said:
My guess... flash BTU ... latest UK g920F firmware. Its kind of imposible to lock 1 sim and the 2nd sim to be unlocked.
Edit: you may lost warranty after this... and this is only my guess.
Edit2: flash a costom recovery... do a full backup so if something goes wrong you restore everything
Click to expand...
Click to collapse
Thanks for replying! I've never really done something like that before.. so if you could give me links and let me know what are the risks of flashing?
also my unit was purchased locally in the philippines, will a uk firmware work with it?

In settings search "profile" if the cell phone finds any ,post a screenshot of if... and you find firmware at samfirmware.com... or a guy have posted them in general section uploaded in google drive for better speed download

lummujaj said:
In settings search "profile" if the cell phone finds any ,post a screenshot of if... and you find firmware at samfirmware.com... or a guy have posted them in general section uploaded in google drive for better speed download
Click to expand...
Click to collapse
Thanks!
No results when i searched profile in the settings.
Will trying flashing a new firmware

Am curious, will unlocking my phone also solve the problem?

LanceD. said:
Am curious, will unlocking my phone also solve the problem?
Click to expand...
Click to collapse
I had the g920FD... the phone use one EFS for both imeis. I said it cannot be 1 sim lock and 1 seem free. The phone for sure contain something installed from provaider to restrict the sim1. I would flash new version. But as i said 1st ill flash recovery to do full nandroid backup

[Completed] Have signal but not registered on network

I have Samsung Galaxy S3 GT-I9300. When the google drive app was downloading from google play, my phone went off due to poor battery. Later when I tried to turn it ON, it has been getting stuck in the boot. So I decided to reinstall my custom ROM. Being busy with my baby, toddler, household chores and job, I gave it to my brother to flash the ROM. After a while, I noticed that my sim was bricked.
It says "Emergency Calls Only", has fake IMEI but working signal.
We did not backup the efs. I tried searching all the methods like modem installation, CSC, baseband verions, IMEI re-write, Kies Upgrade and Initialization, other people's efs restore, etc. But the problem is unchanged. Some of the followed method might have failed for not having proper knowledge like IMEI re-write tool works on specified chipset, etc.
What we noticed is that using different baseband version toggles from having network signal or no signal.
Kies shows more than four firmware versions and no other details like CSC, etc.
How do I clean up all these especially to have SIM working on my phone?
I appreciate you assistance to be brief and clear to understand steps than sending links. Because my time is stress-fully short.

Hi !
There is some confusing info in your post
What do you mean with it has fake IMEI " ? Have you changed it ?
You say that you have a working SIM on certain basebands , is this happening on a custom rom or stock ?
Have you tried to flash a stock firmware as I see that you tried to flash "your custom rom " ?
Cheers !

First of all, thank you for your response and interest to assist.
My mobile's IMEI is shown as 004999010640000 which is not original. Can you help me to change it to correct IMEI suitable for my Samsung S3 GT-i9300 chipset, if that helps in enabling sim to connect to a network? I think changing method only masks the IMEI?
I have tried flashing stock firmware and also Kies Upgrade and Initialization.
I have also changed baseband version installation on stock ROM too. I don't know which baseband is correct to keep.. for my country India or in the country where my mobile is manufactured, incase that's locking sim accessibility? Some baseband bought signal and detected the network operator name, but the message still says "Emergency Calls Only" and is unable to connect to a network.
I presume this problem arose when installing custom ROM from TWRP recovery and it messed up with efs partition?
I had successfully flashed custom ROM many times before without this problem. I think there's some next step to follow to bring back the working sim like I heard of installing modem. I did just try installing modem but same problem as my baseband is already bringing signal.
I had tested my phone from sim unlock app and found out that CSC is locked and it limited specified MCC and MNC numbers. Is this hindering connection to Indian mobile network? Or corrupt efs? Or missed to manually install something?

Bump.

Can't connect to any cellular network anymore SM-G920F

Hello, I can't connect to my local mobile network anymore.
So I can't call or receive phone calls.
I am in Latvia, Baltic region.
My imei is legit and working, so is my phone number.
When I search for my mobile network it finds it -LV TELE2, easy, but when I attempt to connect to it, it shows it 'can't connect to this network try later', when of course the network is working properly for other phones., and it is the network that worked before.
I happened after I flashed a custom lineage rom. It was the right rom for my device,
and I flashed it in correct order and all worked except mobile networks.
I thought using odin to flash back the stock rom will fix it, but it didn't.
Now I am back to stock 7.0 , flashed csc SEB version for my region.
Now in mobile networks there is only Lte/2g/3g options, why there is no gsm or vcdma mobile service?
I believe my provider is gsm, so how to restore it so I could call again?
It shows no service in the drawer, and can't connect to my carrier.
Any help is greatly appreciated, thank you ^_^)/

Had same problem after my motherboard was changed in some mobile repair shop and old imei and stuff copied from old motherboard. After flashing stock 7.0 with ODIN, I had same problem. Luckily repair guy added some certs back free of charge. Something to do with not being official Samsung repair place and not having right kind of tool.
Sent from my SM-G920F using XDA-Developers Legacy app

Thank you for your info. Then it must be possible to fix it with the right tools even at home! I am sure there must be someone who knows how to do it and can help me, and many others with the same problem.

When you tap *#0011# imei status is OK or NG?

Hello, I typed *#0011# and yes imei status is ok, more info - rat=gsm (2g), band=pgsm900 and reg status is = not registered.
So this couldn't be an imei problem, could it?
During this time, I tried many roms, nougat and marshmallow, official and custom, but none has fixed it yet.
I was thinking, flashing original galaxy s6 lollipop rom will definitely do the trick,
because I remember I had a similar problem with my old galaxy s plus phone,
it was impossible to connect to any mobile network on any rom,
until I flashed the oldest stock rom for the device.
But the problem is, I can't find a working download for a custom lollipop rom, they are extinct it seems,
and the official lollipop rom can't be flashed with odin, obviously, because I have a higher fw already.
Official lollipop would be the best and would show if the problem is software related for once and for all,
but how to install it when knox and all kinds of binaries doesn't allow me to flash it with odin?
Is there another way to do it?

No need for this anymore, never solved the issue.
I sold the phone.
Thanks anyways ^-^)/

Need help with my S6

Hello everyone. I just got an used s6 model SM-G920F
Ive had a few problems. System status is Custom amd when i tap on System Update nothing happens. And why thers an united arab emirates info in settings>about device. The other thing that annoys me is that no matter what network signal the phone is on it displays only 4G even when i choose WCDMA or GSM.
I tried to initialize it it with smart switch but it says device cannot be initialised. The phone is on marshmallow 6.0.1
Another thing that frustrates me is that i am not getting LTE cat 6 signal only standart lte. Should i try flashing a custom rom or stock rom via odin.

Try to flash a stock rom to fix those issues, probably your phone is on a custom rom right now

johnny.goldy said:
Try to flash a stock rom to fix those issues, probably your phone is on a custom rom right now
Click to expand...
Click to collapse
Ok i will. Thanks. But im not too sure. Does the g920f variant have lte advanced.

Try to flash stock rom for your carrier that you are using to have full support from carrier, like wifi calling and volte

johnny.goldy said:
Try to flash stock rom for your carrier that you are using to have full support from carrier, like wifi calling and volte
Click to expand...
Click to collapse
Ok i will

in some Firmwares, the 4G symbol is actually HSPA+, and LTE data is displayed as LTE instead of "4G", but this happens only in certain firmwares, like canadian ones on a G920W8

I cant flash stock rom..

Try custom roms
ZeroFLTE said:
Hello everyone. I just got an used s6 model SM-G920F
Ive had a few problems. System status is Custom amd when i tap on System Update nothing happens. And why thers an united arab emirates info in settings>about device. The other thing that annoys me is that no matter what network signal the phone is on it displays only 4G even when i choose WCDMA or GSM.
I tried to initialize it it with smart switch but it says device cannot be initialised. The phone is on marshmallow 6.0.1
Another thing that frustrates me is that i am not getting LTE cat 6 signal only standart lte. Should i try flashing a custom rom or stock rom via odin.
Click to expand...
Click to collapse
My suggestion would be to try custom rom first, if issues still persist you can always go back to stock rom with odin.