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No Signal After Firmware Flash P3100

After updating firmware official, device shows no signal. Sim car is detected but unable to manually search for a network. I flash 2 custom roms, no change, went back to ICS official, still no change. Flashed 4.2.2 update official and still no change.
I tried different sim cards and still no service. Sim card works in other devices. Can anyone assist me please?

daatjie said:
After updating firmware official, device shows no signal. Sim car is detected but unable to manually search for a network. I flash 2 custom roms, no change, went back to ICS official, still no change. Flashed 4.2.2 update official and still no change.
I tried different sim cards and still no service. Sim card works in other devices. Can anyone assist me please?
Click to expand...
Click to collapse
same thing happened to my tab 2 also and i tried also all things that you did
i then gave tab in customer care center and then it was ok

I think i should do so as well. Thanks guy
Sent from my SM-N900 using XDA Premium HD app

920i - no sim/no registered network after marshmallow update

Hi,
This is my first post but, I'm an avid lurker. I am having some issues with my girlfriends 920i. It received an OTA update to marshmallow and ever since it won't read the Sim card. I've tried to flash the official fw through Odin and still having the same problem. Because it doesn't read my Sim card, I have zero access to any mobile network settings.
I am wondering if when they updated the marshmallow, I lost unlock capability.
Also, her imei and sn still match. Most of the problems I see people have are mismatched numbers, and her phone seems fine.
Any help would be greatly appreciated.

So, I checked the firmware that I flashed and it was INS which seems to be the locked version.
I flashed the INU firmware this morning but still not reading my SIM.
I'm out of options at this point, I'm going to go back to lollipop and see how that goes.

Hi,
I am having this issue for my SM G-920I since 2/3 Jan, 2017. I am using fine on US Tmobile network since Oct 2015, but all of a sudden got the no SIM, emergency calls only and continues to stay like this.. I am curious to know if you resolved the issue and how. Thanks for any feedback!

Help me please
I'm having the same issue. Just flashed INS 6.0.1 firmware on my brand new G920I and now i can't get any mobile signal or data. Tried to flash ZTO firmware for my country, but same issue. My phone was fine before flashing INS firmware. IMEI it's fine too. Recovery shows: Applied multi-csc. What can i do? ((((((((((

Kyoo x said:
I'm having the same issue. Just flashed INS 6.0.1 firmware on my brand new G920I and now i can't get any mobile signal or data. Tried to flash ZTO firmware for my country, but same issue. My phone was fine before flashing INS firmware. IMEI it's fine too. Recovery shows: Applied multi-csc. What can i do? ((((((((((
Click to expand...
Click to collapse
Do you also see: " No SIM, Emergency calls only" after rebooting the phone? What's the baseband version ?

upengan78 said:
Do you also see: " No SIM, Emergency calls only" after rebooting the phone? What's the baseband version ?
Click to expand...
Click to collapse
Thank you so much for helping me. Baseband version shows: G920IDVU3EPIF
I see only Emergency Calls Only message

Kyoo x said:
Thank you so much for helping me. Baseband version shows: G920IDVU3EPIF
I see only Emergency Calls Only message
Click to expand...
Click to collapse
Try to connect to Wi-Fi only and once connected, check if there are updates for Software/Firmware.

upengan78 said:
Try to connect to Wi-Fi only and once connected, check if there are updates for Software/Firmware.
Click to expand...
Click to collapse
Already updated and tried to downgrade to 5.1.1, but no sucess. I don't think it's a hw problem, cause it was working before the INS firmware flash, and IMEI number still shows right, no matter what rom i flash (now on MIUI). Can i clean EFS partition and try to flash ZTO firmware again, or i might lost my IMEI and get more problems? Also, wondering if advanced wipe with everything checked on TWRP can help. (data, internal storage, system, sbfs, cache, dalvik cache)

Can you open the phone dialer and enter this code *#*#4636#*#* then clikc Phone Information, and send a screenshot of what you see in the screen (Make sure no IMEI in the screenshot, before you post it here) ? Also check if Radio is OFF or ON.

upengan78 said:
Can you open the phone dialer and enter this code *#*#4636#*#* then clikc Phone Information, and send a screenshot of what you see in the screen (Make sure no IMEI in the screenshot, before you post it here) ? Also check if Radio is OFF or ON.
Click to expand...
Click to collapse
Codes on my dialer doesn't work, but i'm sure the IMEI is right cause it's showing in phone information. Also, radio is on cause when i search for mobile networks the carriers of my country appears on the screen but when i click on then, just appears a message saying that can't connect

Same problem, any solutions?

I had same issue for over a year, you can check details in my thread, resolved by factory warranty motherboard replacement (free of charge, even thou knox was tripped when I bought it, and I told lady in authorised repair shop that i don`t have warranty).
Forgot to mention that I also tried to repair it via Octoplus box, both by me and some other people (wanted a second opinion), DRK fixed, few new certs written, etc.), not only by flashing fw via Odin or Smart Switch.
And I was 99% sure it was hw, turns I was right.
P.S. country dependable: - in some countries they will probably want to sell you a new motherboard in Samsung (happened to me), but in other factory warranty will be accepted (probably, if the phone is not older than 3 yrs I guess)

SIM not recognised after reboot

Hi All,
My Oneplus is currently on CM13.0 (6.0.1). Whenever I restart my phone it does not recognise the SIM. The only way for the SIM to be recognised again is to restart the phone around 6-10 times. This happened back when I was on CM12 so I flashed CM13 hoping that would resolve the issue. It did not.
Any assistance would be appreciated.
EDIT: TWRP version is 2.8.0.1
EDIT2: The issue was the SIM card. Replaced it and it's working fine now.

Amz91 said:
Hi All,
My Oneplus is currently on CM13.0 (6.0.1). Whenever I restart my phone it does not recognise the SIM. The only way for the SIM to be recognised again is to restart the phone around 6-10 times. This happened back when I was on CM12 so I flashed CM13 hoping that would resolve the issue. It did not.
Any assistance would be appreciated.
EDIT: TWRP version is 2.8.0.1
Click to expand...
Click to collapse
Try to check if your baseband is still showing something, instead of unknown, and check for IMEI too.
If baseband is unknown and IMIE is showing nothing, you have to flash Oxygen OS to get back your modem.
I had exactly the same problem.

y0ngc6 said:
Try to check if your baseband is still showing something, instead of unknown, and check for IMEI too.
If baseband is unknown and IMIE is showing nothing, you have to flash Oxygen OS to get back your modem.
I had exactly the same problem.
Click to expand...
Click to collapse
I tried oxygen OS but I got the same issue. Which version did you try flashing?

Amz91 said:
I tried oxygen OS but I got the same issue. Which version did you try flashing?
Click to expand...
Click to collapse
The latest, I have 2 bacons, the China version seems to fine, but the US version had missing baseband(sim card cant be detected) and IMEI after clean flashed to Cyanogen OS 13.1.
I'm not sure if mine is same as your case, i basically factory reset COS13 via latest twrp, side loaded the Oxygen OS and the baseband was back.
Or may be you should try to check or clean your sim card?:good:

Brother are you trying with jio sim in india? If yes then forget about it and if no then do a fresh installation of cm 11 and then upgrade to next cm updates by OTA. If that doesnt helps then it might be problem with the network receptor. Cant help you with that.
Sim issue was common in OPO when it was launced so u can find some solution video on yoitube as well

Network not registered (samsung j7 sm-g610f)

Hello, i have been having a problem with my samsung mobile after i had flashed it with a new firmware. This was after it had stuck on samsung logo. When I flashed it it solved the problem but it brought about network not registered problem. Please could someone help me here, I will be greatful. I am running android 6.0.1 marshmallow
Thanks in advance.

Mrwaa said:
Hello, i have been having a problem with my samsung mobile after i had flashed it with a new firmware. This was after it had stuck on samsung logo. When I flashed it it solved the problem but it brought about network not registered problem. Please could someone help me here, I will be greatful. I am running android 6.0.1 marshmallow
Thanks in advance.
Click to expand...
Click to collapse
Verify whether your IMEI is still intact.
Go to:
system settings>about phone>status
or
system settings>about>status>information
or
system settings>about>information
Or whatever similar settings that you have, then check to see if your IMEI number is shown.
I DO NOT PROVIDE HELP IN PM, KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE

Thanks for your replies. Yes my IMEI is there but its not the same as it is on the back of the phone. However, the first time i flashed the stock ROM it was all the same but i still had this problem of Network not registered.

Mrwaa said:
Thanks for your replies. Yes my IMEI is there but its not the same as it is on the back of the phone. However, the first time i flashed the stock ROM it was all the same but i still had this problem of Network not registered.
Click to expand...
Click to collapse
Are you sure that you flashed the correct firmware for your specific model number?
Have you tried another SIM? If you had the SIM in when you flashed it, it might have damaged the SIM somehow. That might not be your issue but it's worth checking.
Maybe you have conflicting data from before you flashed it, in this case you can try bioting to recovery then factory reset and wipe cache then reboot.
I DO NOT PROVIDE HELP IN PM, KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE

Yes i used the exact firmware for my model as well for my country. I think i have done what you proposing already. And for trying a different SIM i did try it too. I am really helpless right now

Mrwaa said:
Yes i used the exact firmware for my model as well for my country. I think i have done what you proposing already. And for trying a different SIM i did try it too. I am really helpless right now
Click to expand...
Click to collapse
hi guys, did you find any solution? I have a sm-g610m, i boughted yesterday, flashed a stock rom, and now every time i need to make a call the message "Not registered to network" appears....

Hi guys I unrooted my sm-g610f then started getting not registered on network .I've tried many ways to deal with it even rooted it again the used z3x Samsung pro tool but it's still the same .I uprooted then updated the software to android 8.1.0 still the same issue..my security patch is 1 Feb 2019 ..IMEI is not the same as the one on the back please help

Problem after HEROLTE TWRP and THE GALAXY PROJECT ROM

I am facing a problem. I was experimenting with THE GALAXY PROJECT rom. I turned on developer options and removed oem unlock.I installed twrp for hero lte and did format partition instead of wipe and installed the galaxy project rom. It worked fine but then I revereted to my stock firmware with ODIN. I noticed that I am not able to call any one. I thought i had installed England Firmware on Indian firmware as I faced that problem, so I downloaded the indian firmware again but again it was working on england firmware. I can say this because it was using upday instead of samsung briefing. I thought its a wrong rom again and to atleast make calls installed herolte rom. Same problem. Call ends immediately. My sim works fine in another phone. Any other sim stops calling in my phone.
Can any one suggest a solution of what might have happened.
I just booted into recovery and it mentions there herolte recovery.
Any solution.
Post Note - Rom were fine. Only calling and sending sms is not working. I can receive a text and can use internet over LTE. System cannot read sim phone number in hardware diagnostic. I cannot open aditional setting in phone as it says that error reading sim card.

rajputz said:
I am facing a problem. I was experimenting with THE GALAXY PROJECT rom. I turned on developer options and removed oem unlock.I installed twrp for hero lte and did format partition instead of wipe and installed the galaxy project rom. It worked fine but then I revereted to my stock firmware with ODIN. I noticed that I am not able to call any one. I thought i had installed England Firmware on Indian firmware as I faced that problem, so I downloaded the indian firmware again but again it was working on england firmware. I can say this because it was using upday instead of samsung briefing. I thought its a wrong rom again and to atleast make calls installed herolte rom. Same problem. Call ends immediately. My sim works fine in another phone. Any other sim stops calling in my phone.
Can any one suggest a solution of what might have happened.
I just booted into recovery and it mentions there herolte recovery.
Any solution.
Post Note - Rom were fine. Only calling and sending sms is not working. I can receive a text and can use internet over LTE. System cannot read sim phone number in hardware diagnostic. I cannot open aditional setting in phone as it says that error reading sim card.
Click to expand...
Click to collapse
Reinstall original England rom using Odin. And then install twrp and again install TGP or any other OREO rom you like.
Don't forget to format data after installing tgp for the first time.
Also boot up and reboot once after clean flashing with Odin.
Then flash twrp.
P.S try flashing csc selection by tkkg it may help.
Also which rom are you using nougat or oreo?

I have used Oreo as well as nougat. Problem persists.
Only my current operator aim are not working and rest of the sim are working fine. Service center haa asked me to get motherboard changed.
I was installing indian rom. Now even samsung knox related apps are not working.
So basically you want me to install tgp again and twrp after that and again went back to stock after that.
Do you have any idea why this problem could have been causes. Can rooting mess with physical hardware of phone?

njaya95 said:
Reinstall original England rom using Odin. And then install twrp and again install TGP or any other OREO rom you like.
Don't forget to format data after installing tgp for the first time.
Also boot up and reboot once after clean flashing with Odin.
Then flash twrp.
P.S try flashing csc selection by tkkg it may help.
Also which rom are you using nougat or oreo?
Click to expand...
Click to collapse
I want to go back to stock without twrp and my current network working. Its an indian version phone.

rajputz said:
I want to go back to stock without twrp and my current network working. Its an indian version phone.
Click to expand...
Click to collapse
Okay then phone and SMS probably won't work, cause I guess the Indian version is still a nougat but the England one in oreo both your modem and firmware would have been updated and it's not possible to go back, so I suggest you stay with TGP for a while until official oreo arrives in India.
Or else don't use phone or messaging ?