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.
Related
Hi,
I'm from Germany and went on Holiday recently to Singapore and Australia. There I bought prepaid SIM cards for internet access. Now that I've returned and use my german SIM again, my phone can't enable the data connection anymore.
I've attached the *#*#4636#*#* phone info screen. I already tried factory reset, reflashed a radio image and new rom - and still the problem remains. I also tried all the different radio band settings (see second screenshot). It always says "fail because Radio Not Available).
I didn't flash or change anything on my holiday trip, so I'm really out of ideas. I hope someone can help me.
Thanks
Björn
Set network type to GSM and try again.
SwiftKeyed from dGB with Transparent XDA App
error message stays the same, also tried the other network type options, always the same
I just tried a SIM from a firend of mine, and with that one everything works normal.
So it seems to be a problem with the sim card. I guess I will just get a replacement SIM.
Good day! I just want to ask if anyone has an idea of how to solve a weird and sudden problem that happened to my phone a few days ago.
I was running Cyanogenmod R16 with Xcelerate kernel.
I use two SIM cards on my phone, but I do not use the first slot all the time, so when I'm not using it, I regularly disable it through the SIM card settings, and enable it only when I need it.
What happened is, when I tried to enable it, suddenly both my SIM card slots could not be recognized (The SIM card settings could not be accessed; and error says: "SIM card info not available. Menu cannot be accessed"). In the lockscreen, it says: "INVALID CARD." for both SIMs.
I tried both restoring a backup and going back to stock MIUI, but still, the problem was there; none of the SIMs could be recognized (I tried using other SIM cards too.)
My IMEI's for both SIM slots are fine.
I've looked up on other forums, but I haven't found any others with a similar problem on the Redmi 1S.
If anyone knows what I need to do to fix this, I need your help. Thank you very much.
Have you tried both sim in other phone..?
If yes,and both working then should be problem with your imei!
farooque7508 said:
Have you tried both sim in other phone..?
If yes,and both working then should be problem with your imei!
Click to expand...
Click to collapse
Yes, I've tried both SIM's on another phone, and they work fine.
Since my phone still shows both IMEI's when I look for it, I assumed that there's no problem with them. What are possible problems that concern IMEI's? So that I can look up on general IMEI problems.
Thank you very much!
May be this can help friend
http://forum.xda-developers.com/showthread.php?t=3006933
RajGopi said:
May be this can help friend
http://forum.xda-developers.com/showthread.php?t=3006933
Click to expand...
Click to collapse
Thanks for the reference. Backed up my IMEI and Restored it right after, but still no change. Still, thanks!
EDIT: I've already tried two newly bought SIM cards, and the problem is still present.
Was this solved? Happening to me right now..
Happening to me too... Unsolved
For me just blowing in the sim slot & reboot fixed after few times..
if you have TWRP backup your modem & efs partition, just restore it via twrp. it worked for me
Hello,
I have a similar problem.
SIM2 is not recognized at all. I can use SIM1 only.
Tried to switch the SIM cards and still SIM2 is not recognized.
Both SIM cards are working great on other phones.
Is it OS related issue?
I've got same problem. Try to clean the sim metal contacts carefully and gently with an alcohol and qtip or tissue. It solved my problem.
Honor3c said:
Hello,
I have a similar problem.
SIM2 is not recognized at all. I can use SIM1 only.
Tried to switch the SIM cards and still SIM2 is not recognized.
Both SIM cards are working great on other phones.
Is it OS related issue?
Click to expand...
Click to collapse
Turn off your mobile and change sim slots then power on if problem still present then again exchange sim slots then power on do this 2to4 times i hope this will work.
both sim cards not working or imei null
after reverting to stock rom from cm 13 to miui8 my both sims not workin. tried different ways but of no use plz help is there a solution
I got this virus yesterday. Came up after installing MIUI 8.
Bro ... I'm having the exact same problem you've ever experienced. Hopefully your problem is solved for your phone and willing to share with me now. Because I've read and done all the replies in this thread and still no solution. Please help and thanks in advance
Hello Everyone,
I need some help regarding the network issues for Moto Z Play.
I started this thread because after doing a lot of solutions, resets and still it wasn't successful.
So here's the story -
Two days ago my brother gave me the phone which was in excellent condition (VoLTE working, Battery Performance, etc.) working on Android 7.0.
Then he did a reset on the phone from Settings so I can use it.
When I inserted my SIM Cards in the phone, I got network and everything and immediately I received an Update for Nougat 7.1.1. I installed the update and then when the phone booted, I did the setup and everything. But l wasn't able to get VoLTE on my phone. There was no Enhanced LTE Mode option in Settings. I thought it was something temporary and maybe after sometime I will be automatically resolved but it didn't.
The next day I started researching over the internet and found clearing the cache or data of settings or hard reset from recovery/settings will do and I did it but none of the solutions worked. Then I thought it was the SIM problem but it wasn't. I inserted the same Jio SIM from my phone into another VoLTE phone and it was working. I also tried another Jio SIM in Moto and it was showing VoLTE and everything was working perfect. Also I inserted my idea SIM (which was in SIM2 slot) in SIM 1 and it was not showing even 4G range (Just 3G) (The idea SIM is also 4G).
I tried everything - Swapping SIM cards, resetting the phone, Clearing cache, etc. I don't know why this has happened as my brother was using the same carrier sim in same slots (SIM1 - Jio|SIM2- Idea).
I also called the JIO care and they took the complaint and they told me they would look forward to it in 48 hours.
Also, my bootloader is locked and can I flash original stock firmware? (I guess that's only thing left I haven't tried) If so, please provide the link and guide to flash the firmware.
If Anyone has a solution please help me, I am in big trouble.
Get a new sim card for your number. Don't ask why. But this will work, trust me.
samarth05 said:
Hello Everyone,
I need some help regarding the network issues for Moto Z Play.
I started this thread because after doing a lot of solutions, resets and still it wasn't successful.
So here's the story -
Two days ago my brother gave me the phone which was in excellent condition (VoLTE working, Battery Performance, etc.) working on Android 7.0.
Then he did a reset on the phone from Settings so I can use it.
When I inserted my SIM Cards in the phone, I got network and everything and immediately I received an Update for Nougat 7.1.1. I installed the update and then when the phone booted, I did the setup and everything. But l wasn't able to get VoLTE on my phone. There was no Enhanced LTE Mode option in Settings. I thought it was something temporary and maybe after sometime I will be automatically resolved but it didn't.
The next day I started researching over the internet and found clearing the cache or data of settings or hard reset from recovery/settings will do and I did it but none of the solutions worked. Then I thought it was the SIM problem but it wasn't. I inserted the same Jio SIM from my phone into another VoLTE phone and it was working. I also tried another Jio SIM in Moto and it was showing VoLTE and everything was working perfect. Also I inserted my idea SIM (which was in SIM2 slot) in SIM 1 and it was not showing even 4G range (Just 3G) (The idea SIM is also 4G).
I tried everything - Swapping SIM cards, resetting the phone, Clearing cache, etc. I don't know why this has happened as my brother was using the same carrier sim in same slots (SIM1 - Jio|SIM2- Idea).
I also called the JIO care and they took the complaint and they told me they would look forward to it in 48 hours.
Also, my bootloader is locked and can I flash original stock firmware? (I guess that's only thing left I haven't tried) If so, please provide the link and guide to flash the firmware.
If Anyone has a solution please help me, I am in big trouble.
Click to expand...
Click to collapse
devilvj said:
Get a new sim card for your number. Don't ask why. But this will work, trust me.
Click to expand...
Click to collapse
Thanks man, I was too thinking of that and went to JIO store. They had a server error and will be back available in 4-5 days. Will then post with new SIM results.
Hi
So before anyone tells me to just insert a SIM and be done with it, please read this first. I'm trying to unlock the bootloader so I can try flashing different ROMs and radios. I had a perfectly working global version of the Redmi 7. After a phone call, the network went off and wouldn't return.
What I've tried so far:
•Trying multiple Sims known to work
•Manual network selection (fails because it can't find any)
•Changing preferred network modes and bands with the *#*#4636#*#* menu. Nothing happens.
•Toggling airplane mode, several times.
•Factory reset, both from within the OS and from the recovery (Vol Up + Power button)
•Attempting to flash a Fastboot version of the latest global MIUI 11 ROM. This actually fails, saying that critical partitions can't be flashed or something.
•All sorts of bootloader unlock tricks, such as the older versions of MiFlash Unlock, using multiple accounts, etc.
I'm honestly stuck here. Any help in fixing my problem would be appreciated. It could be either getting the network to work, or unlocking the bootloader. I can't bind the MiAccount to the phone under developer options ->MiUnlock status or such, because it detects that there is a SIM in the phone alright, but it just can't connect to any network.
The same here %
Was the SIM card's network working before? Maybe you're just in a dead spot?
Darth Bidder said:
Was the SIM card's network working before? Maybe you're just in a dead spot?
Click to expand...
Click to collapse
It was working fine for a few months. It just stopped being able to connect to a network all of a sudden. I swapped SIMs, moved to places with strong network connections (I verified with a different phone) and still nothing.
Selorm611 said:
It was working fine for a few months. It just stopped being able to connect to a network all of a sudden. I swapped SIMs, moved to places with strong network connections (I verified with a different phone) and still nothing.
Click to expand...
Click to collapse
Then you probably should head to a service center to get it fixed.
what happened to this issue
Selorm611 said:
It was working fine for a few months. It just stopped being able to connect to a network all of a sudden. I swapped SIMs, moved to places with strong network connections (I verified with a different phone) and still nothing.
Click to expand...
Click to collapse
hey even i am facing the same issue from yesterday, swapped sim, factory reset from TWRP and system, still its same.
Did you found any fix to this issue or sent it to service center?
Sidboy1999 said:
hey even i am facing the same issue from yesterday, swapped sim, factory reset from TWRP and system, still its same.
Did you found any fix to this issue or sent it to service center?
Click to expand...
Click to collapse
I had to buy a different phone. We couldn't get anyone to fix it.
Selorm611 said:
I had to buy a different phone. We couldn't get anyone to fix it.
Click to expand...
Click to collapse
Same, i did ask in service they said that they have to replace the whole PCB which will cost somewhere around 6k, so i just bought a new phone by replacing it on amazon for 5k
Same issue im having here but with a new POCO F2 pro. Since inception i was not able to get signal on it
I need to root my redmi 6a but bootloader makes a big trouble for me .for unlocking bootloader there must be sim in that device.but I doesn't have a sim card and even if I insert it, my sim board is damaged. So is there a way to unlock bootloader without inserting sim.
I'm gonna lose my mind.
Last week I did a factory reset. Everything was great for a few days. Then as of Monday, my phone no longer connected to mobile network. (I'm on Visible, which is a Verizon MVNO.)
I tried the same SIM card in another phone, and it worked — but a different SIM card did not work in my phone. So it must be the phone, right?
I looked at About phone > SIM card status:
Network: Visible
Mobile network state: Disconnected
Service state: In service
IMS reg status: Registered
Signal strength: -113 dbm
Network Cell Info Lite app showed the nearest tower and:
SIM state: Ready
Service state: In-Service
I tried resetting network settings and restarting in safe mode, but that didn't help. Visible said to take the phone in to Samsung repair center.
So I did that. They ran a diagnostic, and said everything was fine. They said try factory reset again.
So I factory reset the phone, again, from recovery mode, wiping with cache several times.
After, service was working. Yay!
But then a few hours later, the battery died, and ipon powering back up, I AGAIN no longer have cell service!
Could it be related to adding a work profile? Enabling dev mode?
Any bloody idea what is happening??
I'm loathe to do another factory reset, as it takes me half a day to set up everything again (Work profile authentication, etc.)
Please help save my sanity.
Thanks!
Same problem.. note 10 plus n976b , after flashing stock ROM SIM goes to emergency calls only, now I am on Dr Ketan's ROM but still same problem persists...
Malik Sayriii said:
Same problem.. note 10 plus n976b , after flashing stock ROM SIM goes to emergency calls only, now I am on Dr Ketan's ROM but still same problem persists...
Click to expand...
Click to collapse
I'm not even rooted. Stock rom.
Anyone??
d0g said:
Anyone??
Click to expand...
Click to collapse
Try playing about with this app, it allows you to force the phone to connect to specific network bands, possible you could force it to reconnect when it drops out
Samsung Band Selection - Apps on Google Play
This app will help you access hidden network settings for forcing band selection
play.google.com
SOLVED!
I popped in a SIM from a different carrier, causing phone to restart, then put back the Visible SIM, forcing phone to re-retrieve settings.
Whew!
Couldve been a CSC issue?
d0g said:
SOLVED!
I popped in a SIM from a different carrier, causing phone to restart, then put back the Visible SIM, forcing phone to re-retrieve settings.
Whew!
Click to expand...
Click to collapse
Congrats to you, but my problem didn't solved yet...
@*Detection* i have tried this app many times but didn't worked for me... maybe i have lost my IMEI & device is just showing dummy IMEI though IMEI is same after & before flashing the ROM but when i flashed the IMEI went to NULL in settings then after applying essential fix IMEI came back it also detect the sim but not picking the cellular network only showing the name of network...