Hi!
My dual-sim P20 (EML-L29)has an issue with sim. When I put (working ) sim to any slot the phone request pin, after I put it the phone starts but the carrier doesnt work. Instead of carrier name I have a cross with no-service/ emergency call only. If I do manual carrier search phone found it, however phone cannot connect to carrier due to "registration error". On the other hand, I put 2 sims simultaneously and one of them connected to carrier.
What I done
wipe cache
factory reset with wipe cache
downgrade from 9.1.0.311 to 9.0.0.280 with HiSuite
The phone shows two serial IMEI. Is it normal? I dont have experience with dual sim phones.
I suspect that the problem is caused by modem. If it is possible to flash modem separately? The bootloader is locked. Any other ideas and advice are appreciated.
Related
My phone works normally, then, after performing a factory reset, it won't recognize the sim card anymore. If you go to the setting, and try to access the menu where you can set the desired network, everything is not highlighted. That means all menus on that page cannot ne be accessed. Anybody can help? Thank you.
Try a different SIM to see if the issue is serious or a setting problem. Sometimes you can lose your carrier APN settings and have to add it back in.
Does it still show it's EIME numbers in settings? Is it dual SIM or single? Check if anything in Dev options has caused it.
Reply
My Huawei Ascend Mate 7 is not a dual sims. It only 16 gb version. In the setting, if I click: All-->more-->mobile network-->(the mobile network setting page menus are all not highlighted or not accessible). Yes, I tried a different simm card, and I went to T-Mobile, the guy told me, she cannot do anything since the menu setting page cannot be accessed. If I type *#06# on the dialer pad, yes the IMEI number will show. This problem accoured after performing a factory reset. Thank you.
cuencohl said:
My Huawei Ascend Mate 7 is not a dual sims. It only 16 gb version. In the setting, if I click: All-->more-->mobile network-->(the mobile network setting page menus are all not highlighted or not accessible). Yes, I tried a different simm card, and I went to T-Mobile, the guy told me, she cannot do anything since the menu setting page cannot be accessed. If I type *#06# on the dialer pad, yes the IMEI number will show. This problem accoured after performing a factory reset. Thank you.
Click to expand...
Click to collapse
if this issue come after factory reset,and if you sure sim card have not any problem,and if you Didn't Flash another firmware on your phone...I suggest find an official firmware Exactly for your model(mt7-tl09) and your reigon(middle east/Europe/Africa/Spain or...) and Flash it on your phone.
it's the best and easyest Way to solve it.
*the comform of firmware model and Reigon with the phone,is very important for working Simcards correctly.
*if nothing change After flash a new firmware,it's surely a Hardware problem.
Yes, I agree with that.
Look in the settings for which stock ROM it's running.
Is it rooted, custom recovery etc?
Needs stock recovery to do ROM update. Root doesn't matter but easy to un-root anyway.
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.
purchasing a korean phone (in my case s10 5G U+) sim unlocked, the sim card was working good, after updating to the latest march update the sim worked for about one hour then a crossed circle appeared on the top. and no sim card can be read.
what does it mean ? what should I do ?
is it locked or a software issue ?
STALKER18 said:
purchasing a korean phone (in my case s10 5G U+) sim unlocked, the sim card was working good, after updating to the latest march update the sim worked for about one hour then a crossed circle appeared on the top. and no sim card can be read.
what does it mean ? what should I do ?
is it locked or a software issue ?
Click to expand...
Click to collapse
I suggest adding the device model to the thread title.
STALKER18 said:
purchasing a korean phone (in my case s10 5G U+) sim unlocked, the sim card was working good, after updating to the latest march update the sim worked for about one hour then a crossed circle appeared on the top. and no sim card can be read.
what does it mean ? what should I do ?
is it locked or a software?
Click to expand...
Click to collapse
I don't know if you've already tried this but, try backing up the data that you want to save from your device, then boot into to recovery and choose factory reset, when the factory reset finishes, wipe the cache partition while in recovery then reboot the device.
Contact customer support for your mobile carrier and tell them that you lost service after the update was applied, then see if there is anything they can do from within their system to restore your cellular/network connection. If they mention sending you a new SIM, tell them no and that you will try to fix it first and then if it doesn't work you will accept a new SIM from them. Try finding a different solution before you resort to getting a new SIM because the issue might not even be the SIM but it's worth trying to see if they can do anything before you start trying to find software/flashing solutions that you can do yourself.
If you flashed the update yourself, you might have used an update for a different region. If this is what you did, you need to find the update for your model number and for your specific region, country or carrier. Or you can flash just the modem img or bin file that has been extracted from a firmware update that is for your region, country or carrier.
If that doesn't work. Try flashing the firmware version that you had before the update was applied.
Droidriven said:
I don't know if you've already tried this but, try backing up the data that you want to save from your device, then boot into to recovery and choose factory reset, when the factory reset finishes, wipe the cache partition while in recovery then reboot the device.
Contact customer support for your mobile carrier and tell them that you lost service after the update was applied, then see if there is anything they can do from within their system to restore your cellular/network connection. If they mention sending you a new SIM, tell them no and that you will try to fix it first and then if it doesn't work you will accept a new SIM from them. Try finding a different solution before you resort to getting a new SIM because the issue might not even be the SIM but it's worth trying to see if they can do anything before you start trying to find software/flashing solutions that you can do yourself.
If you flashed the update yourself, you might have used an update for a different region. If this is what you did, you need to find the update for your model number and for your specific region, country or carrier. Or you can flash just the modem img or bin file that has been extracted from a firmware update that is for your region, country or carrier.
If that doesn't work. Try flashing the firmware version that you had before the update was applied.
Click to expand...
Click to collapse
thank you for your time and you helping.
I actually tried to factory reset but the device cant let you enter the recovery.
eventually i replades the device. it was some sort of update issue with this specific device.
Hi, I have an issue with my TMO Oneplus 8 IN2007, it dosent have signal, it recognize the sim card but when i tap in network operators, it give me this msg "error while searching for networks"
1. Tried different sims cards (The phone is recognizing the sim cards, but still giving me no signal).
2. I unlock my phone using the tmounlock app, try different companies sim card, and still didnt work
3. Convert to global and still no signal.
I have read something about TWRP and restoring the modem.img, do you think that will fix the issue ? or what else can I try ? ( Currently im using global version, and i have the bootloader unlocked )
When I ROOT, I unblock BOOTLOADER, the connection to the network is blocked: /
Bootloader unlocked = connection blocking
bluefan said:
When I ROOT, I unblock BOOTLOADER, the connection to the network is blocked: /
Bootloader unlocked = connection blocking
Click to expand...
Click to collapse
Prior to root it you had to unlock the bootloader, the network locked is a different thing.
bluefan said:
When I ROOT, I unblock BOOTLOADER, the connection to the network is blocked: /
Bootloader unlocked = connection blocking
Click to expand...
Click to collapse
Did u network unlock before hand?
I solved the problem.
Flashing new firmware must be done with the SIM card (s) in the ports.
Otherwise, during the first telephone connection (not data transmission), the SIM port will be blocked.
It is possible that this is because I changed the CSC codes from branded to XEO.
I will write it again - you upload new firmware, there must be cards / SIM cards in the ports.
I wrote it via Google Translator
I would like to add that when we want to quickly get rid of the PRELOAD state, we need to upload the previous Andorid version 10. This will change the Preload state to Checking.
Hi all,
Same problem, unfortunately not resolved by flashing with the card in place.
Basically after flash (even though I reverted to the original firmware after previous root) the phone can connect to the mobile network.
But after the first call (if the bootloader is unlocked) it looses the connection and says "no SIM Card".
So I cannot root or anything as it results in a loss of phone, messages and mobile data...
Any idea how to prevent this 'SIM lock'?
EDIT:
This now also happens after returning to stock and locking bootloader and oem.
Tried different sim cards, same result...
i'm having the same problem.
Anyone resolved this?
Same problem here.
What worked for me was this:
SIM/Baseband/IMEI errors since Tuesday 17th
I'm getting a problem where everytime I try to call someone or I receive a call, my SIM cards become undetected, the phone crashes after a short time and then doesn't detect SIM cards again, and Samsung or Google backups stop working, and all...
forum.xda-developers.com
Important bit is not just flashing AP in Odin, but also all the other bits (BL, CP, CSC) from the firmware. I did not need the pit file at all.
Flashing just the AP did not fix the issue but flashing all parts of the firmware helped. Hence I was wondering about the modem...
After flashing completely back to stock, I repeated the rooting process and it's working fine now (using the same firmware AP file but with the boot.img from Magisk).