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Phone will not recognize sim/ imei "Unknown"/ baseband "Unknown"? *Updated*

Phone will not recognize sim/ imei "Unknown"/ baseband "Unknown"? *Updated*
Updated title because problem has now changed.
current problem--
Phone is stock, randomly stopped getting signal factory reset phone using keypad, now phone will not recognize sim card, the imei is blank and the baseband is unknown. Tried reseating the sim, and powering on off.
initial problem--
After having a problem free note for some time now it randomly stopped working. I cannot make a call/ text or use data but the wifi works and the phone functions outside of those uses. When making a call I get various errors in the form of Mobile network not available/ Not registered on network and when i go into mobile networking settings> network operators it takes a while when searching and tells me to either try again later or gives me a message "error while searching for networks." When i take the sim out all together I get bars of service but when the sim is in it either gives me a circle with a line through it or a empty signal bar triangle.
I called straight talk customer support as i thought it was a problem with the service and they told me I had a bad sim card. I have since checked the sim in another phone and it works fine. I have tried multiple working sims in other phones and no luck in mine. The phone appears to be recognizing the sim as the apn settings are adjusting based on what sim i put in. I have tried to take out the battery, take out the sim, factory restore but nothing seems to work. I have also checked the imei number online to see if it was blocked or something and it said it was not. I took it to a local phone repair shop but after toying around with it for a hour they didn't know what was wrong, so here i am, hopefully someone can point me in the right direction. thanks.

May be the phone is network locked. is it asking for some kind of key or pin anytime or when restarting the phone?
where did this begin to happen?

nokiamodeln91 said:
May be the phone is network locked. is it asking for some kind of key or pin anytime or when restarting the phone?
where did this begin to happen?
Click to expand...
Click to collapse
No, its not asking for anything. I was like 10 miles from my house when it began happening and has continued since I got home.

have you tried changing modems?

nokiamodeln91 said:
have you tried changing modems?
Click to expand...
Click to collapse
Changing modems? I am not familiar with what that means?

http://forum.xda-developers.com/showthread.php?t=1645202

After doing a factory reset using the keypad, *2767*3855#, it now says it doesn't recognize my pin and when i type *#06# IMEI comes up with nothing after it. Also, my baseband is now unknown. Is my imei corrupted or something?

Are you on a custom ROM...do you have imei backup... did you try to reseat the sim card
Sent from my GT-N7000 using Tapatalk 2

asf58967 said:
Are you on a custom ROM...do you have imei backup... did you try to reseat the sim card
Sent from my GT-N7000 using Tapatalk 2
Click to expand...
Click to collapse
everything is stock, I have tried taking the sim out and putting it back in. it was recognizing the imei, sim and baseband prior to the factory reset I just wasn't getting a signal. now it doesn't seem to recognize anything.

Possibly a bad sim.. you should try a friends att dim and see what happens
Sent from my GT-N7000 using Tapatalk 2

asf58967 said:
Possibly a bad sim.. you should try a friends att dim and see what happens
Sent from my GT-N7000 using Tapatalk 2
Click to expand...
Click to collapse
I know the sim isn't the problem as it works in another phone.

You may want to try flashing stock GB with PC Odin...then with stock GB recovery do a factory reset.
Don't do anymore factory resets if your on ICS and completely stock - you will kill your device...see the brick bug sticky
Sent from my GT-N7000 using Tapatalk 2

josh3336 said:
I know the sim isn't the problem as it works in another phone.
Click to expand...
Click to collapse
when you go to settings> about phone > dont you see IMEI ?

nokiamodeln91 said:
when you go to settings> about phone > dont you see IMEI ?
Click to expand...
Click to collapse
It says "Unknown"

go to /efs and see if you have all the data.. should be about 5MB folder

asf58967 said:
You may want to try flashing stock GB with PC Odin...then with stock GB recovery do a factory reset.
Don't do anymore factory resets if your on ICS and completely stock - you will kill your device...see the brick bug sticky
Sent from my GT-N7000 using Tapatalk 2
Click to expand...
Click to collapse
I am using stock and using ICS , whoops, thanks for the information.

nokiamodeln91 said:
go to /efs and see if you have all the data.. should be about 5MB folder
Click to expand...
Click to collapse
I'm assuming i have to root my phone in order to look at this folder? I'm looking into this now.

yes.

when restarting phone do you get the password prompt for the sim pincode, could be sim is not registered?
Anyways a stock phone should not do this. Its a case for customer service to fix efs. That appears to have instantaniously corrupted(!) first case I have ever seen of this.
Almost cannot believe it.
Without sim, is the imei there? I am suspecting your emei was gone before which you never noticed then. Is it even a new phone?
note rooting might void warrantee, so be careful
Sent from my GT-N7000 using Tapatalk 2

nokiamodeln91 said:
yes.
Click to expand...
Click to collapse
I used es file explorer and within the efs folder there were 5 mb worth of files.

[Q] Orange UK jelly bean OTA update PROBLEM

Hi Guys,
I have just updated my RAZR I with the orange uk jelly bean ota however I now have no service. I have noticed that there are no APN's and the service centre number is blank.
Any Ideas

grampsharry said:
Hi Guys,
I have just updated my RAZR I with the orange uk jelly bean ota however I now have no service. I have noticed that there are no APN's and the service centre number is blank.
Any Ideas
Click to expand...
Click to collapse
Does anyone have the orange up APN and sms centre details???

grampsharry said:
Does anyone have the orange up APN and sms centre details???
Click to expand...
Click to collapse
Tray this:
Click Menu and select New APN
Use the following settings:
Name = Orange Internet
APN = orangeinternet (case sensitive)
MCC:234
MNC:33
APN Type: default

piskr said:
Tray this:
Click Menu and select New APN
Use the following settings:
Name = Orange Internet
APN = orangeinternet (case sensitive)
MCC:234
MNC:33
APN Type: default
Click to expand...
Click to collapse
Thanks however when I save the APN and go back in its gone ???
Also I cannot save the sms centre number

grampsharry said:
Thanks however when I save the APN and go back in its gone ???
Also I cannot save the sms centre number
Click to expand...
Click to collapse
Does going to the UK Orange help pages for help & support / mobile / mobile services / internet, data and wi-fi
how do I setup my phone for Internet access which will on identifying our phone send you the relevant setting by text, assist? It did for me when I had to reflash and lost the Orange internet and SMS settings (but I could also enter them manually).

mervluk said:
Does going to the UK Orange help pages for help & support / mobile / mobile services / internet, data and wi-fi
how do I setup my phone for Internet access which will on identifying our phone send you the relevant setting by text, assist? It did for me when I had to reflash and lost the Orange internet and SMS settings (but I could also enter them manually).
Click to expand...
Click to collapse
Tried that but the problem is I cannot save and enable the apn details.
When I go into settings/about phone/status - the following items are unknown or blank (Network/mobile network type/service status/mobile phone number/IP address)??

grampsharry said:
Tried that but the problem is I cannot save and enable the apn details.
When I go into settings/about phone/status - the following items are unknown or blank (Network/mobile network type/service status/mobile phone number/IP address)??
Click to expand...
Click to collapse
It's really unusual, but solution is surely in the correct APN. I had the problem too, after update my SIM became unrecognizable until I performed factory reset. But this is the last option, after that you must retrieve everything from zero. I suggest you to try some less painful actions first:
I asume that you are really on Orange despite you present yourself with T Mobile logo? Then try to find out what changed regarding OTA update. Before you were on GB ICS and APN was set automatically? Or you had to insert data manually?
Ok Now try theese:
The first option is to enter only:
Name = Orange Internet
APN = orangeinternet
and leave everything else untouched.
The second option is to fill:
Name = Orange Internet
APN = orangeinternet
MCC:234
MNC:34
APN Type: default
Because Orange GB operates under 2 MNC: 33 and 34.
Hope it could help.

OK it seems I cannot do anything to sort out this issue with Orange-UK JB so I need to try install another version of the firmware.
Is there anyway to install another version of firmware (retail UK or even revert back to ICS)?
I am really clueless so would like step by step instructions if you have the time?
Thanks Guys

grampsharry said:
OK it seems I cannot do anything to sort out this issue with Orange-UK JB so I need to try install another version of the firmware.
Is there anyway to install another version of firmware (retail UK or even revert back to ICS)?
I am really clueless so would like step by step instructions if you have the time?
Thanks Guys
Click to expand...
Click to collapse
Do not try and revert back to ICS you will brick you're phone have you tried taking your sim out wiping it clean then re installing it can you make any calls from it if so I suggest you phone orange/T-Mobile/ ee and get them to send you a settings update for internet vis SMS
Sent from my XT890 using xda app-developers app

dog121 said:
Do not try and revert back to ICS you will brick you're phone have you tried taking your sim out wiping it clean then re installing it can you make any calls from it if so I suggest you phone orange/T-Mobile/ ee and get them to send you a settings update for internet vis SMS
Sent from my XT890 using xda app-developers app
Click to expand...
Click to collapse
No calls or texts . As my the bootloader has been unlocked I have lost guarantee so I need to find a way to install new firmware. I dont think it has anything to do with the APN or SMS centre number as I cannot add or update them. I think it is a software issue.
Any ideas how to update or install new firmware?

grampsharry said:
No calls or texts . As my the bootloader has been unlocked I have lost guarantee so I need to find a way to install new firmware. I dont think it has anything to do with the APN or SMS centre number as I cannot add or update them. I think it is a software issue.
Any ideas how to update or install new firmware?
Click to expand...
Click to collapse
Try using homemade fast boot by matt
http://forum.xda-developers.com/showthread.php?t=1936512
[Homemade Fastboots] Unlocked RAZR i's Only! [Windows]
Sent from my XT890 using xda app-developers app

HELP. Disconnected because service is unavailable

Since ive installed Maximus 42.0.0 I get not internet on my phone, in the mobile data section it only shows as Disconnected bcause service is unavailable, Ive tried 2 different sim cards, It wont let me try to change to APN settings, Ive tried to reinstall maximus 42 and going back to a really old backup I had of a completely different rom and still nothing, and even after re installing maximus and using a old backup I can never change the APN settings, and it always shows up the top the sim card icon with a !, But it still alerts me on both roms when I eject the SIM card.
I cant find anything that helps, Ive also tried install a new radio and firmware.

kyaldearing said:
Since ive installed Maximus 42.0.0 I get not internet on my phone, in the mobile data section it only shows as Disconnected bcause service is unavailable, Ive tried 2 different sim cards, It wont let me try to change to APN settings, Ive tried to reinstall maximus 42 and going back to a really old backup I had of a completely different rom and still nothing, and even after re installing maximus and using a old backup I can never change the APN settings, and it always shows up the top the sim card icon with a !, But it still alerts me on both roms when I eject the SIM card.
I cant find anything that helps, Ive also tried install a new radio and firmware.
Click to expand...
Click to collapse
Check with the carrier to see in the sim cards are still valid.

majmoz said:
Check with the carrier to see in the sim cards are still valid.
Click to expand...
Click to collapse
They are, I use one on pre paid in my iphone and the other one is post paid and that one is still active to

kyaldearing said:
They are, I use one on pre paid in my iphone and the other one is post paid and that one is still active to
Click to expand...
Click to collapse
Have you tried Settings -> Mobile Data -> Mobile Network Settings -> Access Point Names -> APNs select the Menu (three dots) choose New APN. You can enter all the relevant information there.

majmoz said:
Have you tried Settings -> Mobile Data -> Mobile Network Settings -> Access Point Names -> APNs select the Menu (three dots) choose New APN. You can enter all the relevant information there.
Click to expand...
Click to collapse
I have one I go into mobile data everything besides roaming and roaming sounds is greyed out and I can't even select them. So I can't even try change the apn and it's like that in both Roms and there from two different makers

kyaldearing said:
I have one I go into mobile data everything besides roaming and roaming sounds is greyed out and I can't even select them. So I can't even try change the apn and it's like that in both Roms and there from two different makers
Click to expand...
Click to collapse
when you go in settings --> about --> Phone identity
can you see your IMEI or is it blank?

kyaldearing said:
I have one I go into mobile data everything besides roaming and roaming sounds is greyed out and I can't even select them. So I can't even try change the apn and it's like that in both Roms and there from two different makers
Click to expand...
Click to collapse
Wow, something has messed with your phone. Assuming Maximus downloaded correctly and you checked it MD5 to verify, then maybe your recovery may be causing some issues. Some versions of TWRP are writing in the wrong partition and resulting in missing OS, etc. This version might help. If this doesn't help, then you might have to go back to the stock rom to check if the issue is there. If it is, then you might have to send in your phone for servicing.

alray said:
when you go in settings --> about --> Phone identity
can you see your IMEI or is it blank?
Click to expand...
Click to collapse
Yeah the IMEI is still there

majmoz said:
Wow, something has messed with your phone. Assuming Maximus downloaded correctly and you checked it MD5 to verify, then maybe your recovery may be causing some issues. Some versions of TWRP are writing in the wrong partition and resulting in missing OS, etc. This version might help. If this doesn't help, then you might have to go back to the stock rom to check if the issue is there. If it is, then you might have to send in your phone for servicing.
Click to expand...
Click to collapse
I've tried installing it with twrp and clockwork, I used twrp first and that's when it happened but clockwork still installs and se problem. But I was thinking the best thing would be to go right back to stock

kyaldearing said:
I've tried installing it with twrp and clockwork, I used twrp first and that's when it happened but clockwork still installs and se problem. But I was thinking the best thing would be to go right back to stock
Click to expand...
Click to collapse
I would give the different version of TWRP a try first, then if it failed, I'd go back to stock. It may save you some time and steps.

Changed SIM, need to factory reset

So, I changed my SIM from Verizon to T-Mobile--works fine. Then, I changed it back to my Verizon SIM--I get no signal.
After doing some reading around, it sounds like the only way to fix this is to perform a factory reset.
I intend on using the built in function in Android to do this (not use TWRP). Will I have to re-root/decrypt my N6 again if I factory reset? I know the SD card (emulated) partition won't be affected, so that's good. Just wanted to make sure, as I've never just performed a factory reset on a phone without wiping the /system as well, and flashing a new ROM.

try going into SETTINGS > MORE > CELLULAR NETWORKS > PREFERRED NETWORK TYPE
change according to network.
Same thing happened on my Nexus 5. Sprint service, popped in T-Mo SIM and back to Sprint.

JFizDaWiz said:
try going into SETTINGS > MORE > CELLULAR NETWORKS > PREFERRED NETWORK TYPE
change according to network.
Same thing happened on my Nexus 5. Sprint service, popped in T-Mo SIM and back to Sprint.
Click to expand...
Click to collapse
Nope. Nothing like that works. Tried changing APNs, getting a new SIM card, etc. Probably just need to factory reset.

*#*#4636#*#* and change to LTE/CDMA?

PaisanNYC said:
*#*#4636#*#* and change to LTE/CDMA?
Click to expand...
Click to collapse
Tried that. No dice.
I just need to know if I need to decrypt and reroot if I factory reset.

no cellular network

Hi there:
I had a rooted nexus 6 with Android 6.
I was playing with chmod and root and messed up some system permissions.
I have re-installed several Nexus 6 Google images 5.1 6.0 etc...
I have everything except cellular signal. It says no service and sometimes no sim card.
I have taken my sim and put it in another phone and it worked.
When I go to *#*#4636#*#*
It says GSM: emergency service only and GPRS service: disconnected.
I tried to change the network type to GSM only and others with no success.
Any help to further diagnose this would be appreciated..
Thanks

do you have an apn entered? and is it correct?

simms22 said:
do you have an apn entered? and is it correct?
Click to expand...
Click to collapse
Very good point.
When I flashed 6.0.1
under cellular network settings , I only see Data raoming, Preferred network type and System select.
no APN settings
When I re-flashed 5.0.1 , I could see the apn settings, but when I go to it, it says something like that the user doesn't have permission to view the settings. I even tried to add a new settings and save it, but the message stayed there and I see no APN list at all..
I might have messed up the APN permissions with chmod, but I would think a system re-flash would have corrected it..
Thanks

orcking said:
Very good point.
When I flashed 6.0.1
under cellular network settings , I only see Data raoming, Preferred network type and System select.
no APN settings
When I re-flashed 5.0.1 , I could see the apn settings, but when I go to it, it says something like that the user doesn't have permission to view the settings. I even tried to add a new settings and save it, but the message stayed there and I see no APN list at all..
I might have messed up the APN permissions with chmod, but I would think a system re-flash would have corrected it..
Thanks
Click to expand...
Click to collapse
are you using sprint by chance?

simms22 said:
are you using sprint by chance?
Click to expand...
Click to collapse
No TMO
Any suggestions please...

orcking said:
No TMO
Any suggestions please...
Click to expand...
Click to collapse
i ask if sprint because sprint doesnt use apns. tmo does though.

orcking said:
No TMO
Any suggestions please...
Click to expand...
Click to collapse
Does your IMEI match the number on your SIM card tray?