IMEI & Operator issue after a regular update to CyanogenMod 12.0 YNG1TAS213 - ONE Q&A, Help & Troubleshooting

Hi friends,
I am from Turkey and I got a Oneplus One 16GB from a friend, yesterday.
The phone was running on kitkat 4.4.x by then (probably CM11s bıt not sure). I inserted my sim card which worked fine. Checked the registration status of IMEI online which showed that it was registered. Means both IMEI and Operater were working by then.
Then I connected the phone to the internet and checked for the updates that were available. The phone automatically downloaded and installed the updates without any flashing or other intervention. Right now it is running CM 12.0 YNG1TAS213.
However, after the update, I was unable to connect to the operator. Apparently, the phone was continuously trying to connect to the operator and something was stopping it. I tried to figure out why and found the following things.
When phone is on airplane mode or without simcard, it shows the correct IMEI.
When I insert the sim card and check for the IMEI, it shows just an empty box.
I think there is some software bug that is creating a conflict between the IMEI and the sim card.
The forum won't allow posting pictures but you can check them: postimg.org/gallery/1ldxgm1ms/768d9afa/
What are the possible reasons and how can I solve this problem? By downgrading to CM11 or anything else?
Thanks.

Related

XT926, sim card problem

Hello all,
I recently got the XT926 from Ebay. The phone had CM 10.2 ROM installed when I got it and it could detect my SIM card. Everything worked almost fine. I was able to access the internet through HSDPA and I was able to make calls. However I had issues with not being able to send SMS and MMS. I couldnt save the SMSC number so I decided to install the stable release of CM 10.1. I wiped, and flashed CM10.1 using TWRP that already existed in the phone. Now, after that, the phone will no longer detect any SIM cards no matter what operator or ROM I use. I live in Sweden and I'm using the GSM network. Wifi and all other functions work fine.
I even installed the official VRZ_XT926_9.8.1Q-79-1_CFC.xml but still its not able to bypass the activation screen because it wont detect any sim cards.
Any idea or suggestions on how to fix this?
Thanks in advance

Sim Card Not Detected?

Please help me out! So I previously had PA running on my Nexus 5, no problem whatsoever. Then, just recently my phone did not detect my sim card. I tried restoring my old nandroid backup, flashed multiple ROMs, and even restore the phone back to stock, still no progress. I have also tried my brother sim card but still it would not detect. One thing that is major problem is with the stock lollipop update the "cellular network settings" is blank out, so I can't even access the APN setting to input Tmo setting, even with a working sim card in the phone. Could this be a sign that it is a hardware problem and not a software one?
Thank you.

[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.

Samsung Galaxy S10 (SM-G973F) doesn't register to network

I recently bought a used Samsung Galaxy S10 (SM-G973F).
At first glance the phone was in excelent shape. The SIM Card was connecting to the mobile network, and calls, internet connection, etc was OK.
But then, I found out that the phone had been rooted. Probably, by the seller. In pannic, I rushed to unroot flashing the stock Rom.
Here what I did:
1- Forgot to check my precisly CSC code and assumed ZTA (cause I'm from Brazil, and the phone is from carrier "Claro")
2- Downloaded the stock rom using Frija
3- Using Odin 3.14.1 flashed the device.
The previous rooted system was on Android 10 and One UI 2.5. With this new rom went to Android 11 and One UI 3.0.
The problem:
The phone recognizes the SIM Card. But it simply doesn't connect to the network. When I try to make a call it says: " not registered on network"
The phone DO recgonizes the SIM Card. On the SIM Card Manager shows my carrier name (Vivo) and my phone number. Also, the SIM app is showing on the app list.
Things I tried:
Rebooting the phone
Changin the SIM Slot
Testing the SIM on another device to ensure it was working
Checked if the IMEI wasn't missing/undefined. It is not, the IMEI appears to be untouched
Checked if the IMEI had been blacklisted. It's not.
Flashed SEVERAL different stock ROMS with different CSC (ZTO, ZTA, ZVV)
Try to manually select the network. This also throws an error saying "error while searching for network"
I'm really desperate and don't know what to do anymore.
No one have a clue either? :C
Look inside here:
How to Fix 'Not Registered on Network' on Android
Here is how to fix 'Not Registered On Network' error on Android. Mostly error occurs on Samsung phones, but this solution works for all android phones.
www.android-recovery.net
Wow,
This is exactly like my S10 right now.
At first, all is good, the signal was great, all working well, except cant connect to samsung pass and samsung health because it was root.
then i brought to sellular shop service, to flash the phone.
Then, “not registered to network” happened. The signal ok, the phone able to read dual simcard, but “emergency call only” and if i try to search network manually, “error while searching for network”
And the sellular shop service have no idea how to fix after they reflashed and try to fix it for several days.
Have you found any solution to fix your pho?
pls advice…
itupini said:
I recently bought a used Samsung Galaxy S10 (SM-G973F).
At first glance the phone was in excelent shape. The SIM Card was connecting to the mobile network, and calls, internet connection, etc was OK.
But then, I found out that the phone had been rooted. Probably, by the seller. In pannic, I rushed to unroot flashing the stock Rom.
Here what I did:
1- Forgot to check my precisly CSC code and assumed ZTA (cause I'm from Brazil, and the phone is from carrier "Claro")
2- Downloaded the stock rom using Frija
3- Using Odin 3.14.1 flashed the device.
The previous rooted system was on Android 10 and One UI 2.5. With this new rom went to Android 11 and One UI 3.0.
The problem:
The phone recognizes the SIM Card. But it simply doesn't connect to the network. When I try to make a call it says: " not registered on network"
The phone DO recgonizes the SIM Card. On the SIM Card Manager shows my carrier name (Vivo) and my phone number. Also, the SIM app is showing on the app list.
Things I tried:
Rebooting the phone
Changin the SIM Slot
Testing the SIM on another device to ensure it was working
Checked if the IMEI wasn't missing/undefined. It is not, the IMEI appears to be untouched
Checked if the IMEI had been blacklisted. It's not.
Flashed SEVERAL different stock ROMS with different CSC (ZTO, ZTA, ZVV)
Try to manually select the network. This also throws an error saying "error while searching for network"
I'm really desperate and don't know what to do anymore.
Click to expand...
Click to collapse
So, were you able to find a solution for this problem? I also bought a Note 9 N960F/DS recently and found out it was actually a N960N model that was changed to N960F/DS. So I did exactly what you did, I flashed the original stock rom, N960N, but now phone will not connect to network. I also did hard reset, reflash other stock roms, nothing changed. Anybody with insight should please give us some pointers.

Baseband and Imei number are not detected by My oneplus 8 Phone

Hi last week I have tried to install Oxygen os (Global version) using oneplus updater and I got network issue and sim not detecting issue. After that I have tried
his tutorial to go back to my stock version and everything seems working fine untill today morning. My phone stoped detecting my sim card and I can't even go to sim card setting. Sim toolkit disappeared and Baseband showing unknown. Can anybody instruct me to fix this ?
Note : I don't have any backup EFS files :'(
codersauthority said:
Hi last week I have tried to install Oxygen os (Global version) using oneplus updater and I got network issue and sim not detecting issue. After that I have tried
his tutorial to go back to my stock version and everything seems working fine untill today morning. My phone stoped detecting my sim card and I can't even go to sim card setting. Sim toolkit disappeared and Baseband showing unknown. Can anybody instruct me to fix this ?
Note : I don't have any backup EFS files :'(
Click to expand...
Click to collapse
I have this problem too. Have you found any way to solve the problem?
Hmm, I still didn't find any solutions bro, but I think it's better to go to a repair shop. I didn't go to any repairing shop since I am done with this crap oneplus brands. Full of bugs :'(

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