Baseband & IMEI unknown after flashing CM14 on SM-N910C - Galaxy Note 4 Q&A, Help & Troubleshooting

A few nights ago, I flashed CM14 with Nougat on my SM-N910C. Unfortunately, ever since the flash finished, my phone stopped reading any SIM cards. The baseband and IMEI both read "unknown" in the settings. Is there any way to return these? I'm okay with anything as long as it ends up making my phone usable again.
I'm not an expert at this, so please explain stuff your help is appreciated, thanks!

Bump! Please help me out!! Any tips appreciated

cathcart23 said:
A few nights ago, I flashed CM14 with Nougat on my SM-N910C. Unfortunately, ever since the flash finished, my phone stopped reading any SIM cards. The baseband and IMEI both read "unknown" in the settings. Is there any way to return these? I'm okay with anything as long as it ends up making my phone usable again.
I'm not an expert at this, so please explain stuff your help is appreciated, thanks!
Click to expand...
Click to collapse
Did you made efs backup from twrp before flashing rom ?
If you have efs back up then restore it.
If not then Try flash stock 6.0.1 firmware via odin and do factory reset from stock recovery after flash.

Trex888 said:
Did you made efs backup from twrp before flashing rom ?
If you have efs back up then restore it.
If not then Try flash stock 6.0.1 firmware via odin and do factory reset from stock recovery after flash.
Click to expand...
Click to collapse
The stock ROM flash worked!! Thank you

Related

Galaxy note 3 sm-n900 Unkonwn baseband

hello Guys, i have a galaxy note 3 sm-n900 on my hand right now, the problem is that i have no data, unknown baseband and no imei (Null/Null)......is there any solution ??? thank you...
In normal case all this missing comes from factory, if you need help from others you must explain how this happened, what rom you are using etc etc
Sent from my SM-N9005 using XDA Free mobile app
Byakuya88 said:
hello Guys, i have a galaxy note 3 sm-n900 on my hand right now, the problem is that i have no data, unknown baseband and no imei (Null/Null)......is there any solution ??? thank you...
Click to expand...
Click to collapse
Flash a Stock N900 ROM and hope for the best.
nicholaschum said:
Flash a Stock N900 ROM and hope for the best.
Click to expand...
Click to collapse
thank you for your answer, i flashed the last 4.4.2 firmware but it's the same thing.....
Byakuya88 said:
thank you for your answer, i flashed the last 4.4.2 firmware but it's the same thing.....
Click to expand...
Click to collapse
May be your imei data was corrupt.
Did you make backup for the EFS data?
If so just restore it.
i have the same issue with a friends phone, no EFS backup, he won't tell what he did to the phone but now imei is null/null and doesn't have a baseband, anyway to fix it?
jdomadia said:
In normal case all this missing comes from factory, if you need help from others you must explain how this happened, what rom you are using etc etc
Sent from my SM-N9005 using XDA Free mobile app
Click to expand...
Click to collapse
similar problem
I have a sm-n900 exynos and I have lost my imei and baseband during a Samsung flash. I have a TWRP backup, efs.img backup by dr.ketan's backup tool but nothing is able to restore my efs. I have scanned emmc blocks for bricked blocks and all blocks come back as non-corrupted. may be the partition is corrupted .how do I erase my efs partition to rebuild it. I have tired to flash PIT from ODIN but that too doesn't work.
tried this post http://forum.xda-developers.com/showthread.php?t=2567133&page=36
but need a guide to identify the partitions and how to rebuild them. by any chance anyone know if I could extract twrp backup to files to restore efs or from efs.img so I can use the nv_data.bin, since tried restoring the backups and it didn't restore I feel the partition might be corrupt and hence not being re-written. so might be I have to rebuild the partitions by formatting as explained in this thread. but I don't know exactly the steps for exynos variant. I tried using terminal on twrp but mkef2 command shows mmbcblkp03 doesn't exist which as I have read in posts is the efs partition on this phone and reboots to twrp recovery. and mmbcblkp12 show filesystem too small and reboots to twrp recovery
weird thing is, i sometimes find the imei and the baseband and sometimes i dont, phone's not rooted yet, trying to find a way to root it without trippong knox since is not mine, but maybe im able to recover the efs i hope it works
Same problem here...
Hey guys, I'm experiencing the same problem since i installed VN kit kat rom. I searched for the efs backup and i found it but when i use odin to flash it it doesn't work. I tried flashing back to stock but that doesn't work. Can soneone please help me?
Fixed it!!!
If you have a n900 and your imei is null and your baseband is unknown all you have to do is to flash the file beneath with cwm recovery and voila!
You don't have me to thank, DaOldMan/Thomas deserves all the credit!
V-dude said:
If you have a n900 and your imei is null and your baseband is unknown all you have to do is to flash the file beneath with cwm recovery and voila!
You don't have me to thank, DaOldMan/Thomas deserves all the credit!
Click to expand...
Click to collapse
You save my life dude! Thanks alot man!
You're welcome dude! I had the same problem too so i know how you feel
Btw DaOldMan (or Thomas) is the one you need to thank...
V-dude said:
If you have a n900 and your imei is null and your baseband is unknown all you have to do is to flash the file beneath with cwm recovery and voila!
You don't have me to thank, DaOldMan/Thomas deserves all the credit!
Click to expand...
Click to collapse
Thanks Man!!!!This file saved my day!!!cheers!!!!![emoji106] [emoji106] [emoji106] [emoji106] [emoji106]
You're wlecome :good:
V-dude said:
If you have a n900 and your imei is null and your baseband is unknown all you have to do is to flash the file beneath with cwm recovery and voila!
You don't have me to thank, DaOldMan/Thomas deserves all the credit!
Click to expand...
Click to collapse
HI just one question my friend has the exact same problem (IMEI null/null) baseband is unkown !!! the device is SM-N900 running 4.4.2 right now he flashed the file but the problem still exist !!! pleeeeeeeeease help !!
this file only works if the device is running official 4.3 ??? or we can flash it on stock 4.4.2 !!!
it seems wiered to me that others on this forum flashed the file and it worked with them !!!!!
pleeeeeeease help
You can still flash it if you have 4.4.2. The file i uploaded to be flashed is just to flash the baseband not the rom itself.
Btw did you flash the file with cwm recovery?
V-dude said:
You can still flash it if you have 4.4.2. The file i uploaded to be flashed is just to flash the baseband not the rom itself.
Btw did you flash the file with cwm recovery?
Click to expand...
Click to collapse
Thanks man for the reply
anyway !! yes of course we flashed the file with CWM recovery tha recovery that we used is ( n900-cwm-recovery-6.0.4.7-kk(0125) )
we flashed it 2 times but nothing !! after flashing the baseband stays unkown and IMEI (null/null)
just one thing that the system is 4.4.2 rooted is that a problem ? should we flash the official stock 4.4.2 and then flash the file ?!!
we'v tried to wipe factory data/cash partion/ delvic cash then flashed the file still nothing !!
please help my friend is going crazy !!!
V-dude said:
If you have a n900 and your imei is null and your baseband is unknown all you have to do is to flash the file beneath with cwm recovery and voila!
You don't have me to thank, DaOldMan/Thomas deserves all the credit!
Click to expand...
Click to collapse
its work, thanks a lot dude : good::laugh:
ghassano015 said:
Thanks man for the reply
anyway !! yes of course we flashed the file with CWM recovery tha recovery that we used is ( n900-cwm-recovery-6.0.4.7-kk(0125) )
we flashed it 2 times but nothing !! after flashing the baseband stays unkown and IMEI (null/null)
just one thing that the system is 4.4.2 rooted is that a problem ? should we flash the official stock 4.4.2 and then flash the file ?!!
we'v tried to wipe factory data/cash partion/ delvic cash then flashed the file still nothing !!
please help my friend is going crazy !!!
Click to expand...
Click to collapse
That s due to a modem you update so go back to original modem. ..
Ohw ok.... When i flashed the file my sim card got the read the first time i restarted my phone. I don't get why it doesn't work for your friend. What you can try to do is to download (google) other basebands for n900 and try to see if those work (it doesn't necessarily have to be 4.4.2 cuz i flashed the same 4.3 file on my 4.4.2 phone and it worked). If that doesn't work you can try to flash a stock rom and then flash a baseband ( while still in recovery mode), try the one i uploaded. just be sure to have a backup of the current rom if the stock one doesn't seem to be solution.
Maybe start with these :
http://forum.xda-developers.com/showthread.php?t=2475714

[Q] please help me ...please... please

Please help me about my phone note3 sm-n900 3g i was install vn build 14 kitkat rom and i change to dr-ketan rom version 9 and lost network and idont known wt im doing
So please hlp me and sorry for my bad language
re: network and other issues
dul-faqar said:
Please help me about my phone note3 sm-n900 3g i was install vn build 14 kitkat rom and i change to dr-ketan rom version 9 and lost network and idont known wt im doing
So please hlp me and sorry for my bad language
Click to expand...
Click to collapse
If you don't know what you are doing my advice would be to
go to http://SamMobile.com and download the official kitkat
4.4.2 SM-900 firmware and flash it using Odin.
Be sure to do a full wipe including system, data, cache, dalvik
and last but not least a factory reset in twrp or cwm recovery
before you start the odin flash.
You will need to re-root your phone afterwards and install twrp
or cwm recovery. This is the surest way to resolve your network
and other issues.
This will give you a fresh clean start.
This will solve it.
Do you have twrp or cwm backup.
if not reflash VN rom 14.1 and you should get it back. secondly you can flash the modem attached.
1. wipe the device including internal memory in the twrp memory. put the phone in download mode. flash the modem via cwm rcovery
2. go back to recovery do just a factory reset.
3 now get any 4.4.2 stock rom for your region from sammobile and flash it using odin.
when the phone is rebooting and you see the Samsung logo pull the battery. put the battery back, go back to recovery do a factory reset. then let the boot complete.
it should be fine.
if it help don't forget to press thanks
Hello
mithudas28 said:
Do you have twrp or cwm backup.
if not reflash VN rom 14.1 and you should get it back. secondly you can flash the modem attached.
1. wipe the device including internal memory in the twrp memory. put the phone in download mode. flash the modem via cwm rcovery
2. go back to recovery do just a factory reset.
3 now get any 4.4.2 stock rom for your region from sammobile and flash it using odin.
when the phone is rebooting and you see the Samsung logo pull the battery. put the battery back, go back to recovery do a factory reset. then let the boot complete.
it should be fine.
if it help don't forget to press thanks
Click to expand...
Click to collapse
Hello, How do I reflash the vn? I am new to samsung phones? can you point me in the right direction? how do you do a cwn recovery? i already downloaded the firmware from my region and odin.
dul-faqar said:
Please help me about my phone note3 sm-n900 3g i was install vn build 14 kitkat rom and i change to dr-ketan rom version 9 and lost network and idont known wt im doing
So please hlp me and sorry for my bad language
Click to expand...
Click to collapse
try to flash a new kernel might solve the problem
omarluna2 said:
Hello, How do I reflash the vn? I am new to samsung phones? can you point me in the right direction? how do you do a cwn recovery? i already downloaded the firmware from my region and odin.
Click to expand...
Click to collapse
sorry didn't understand you I was answering the op.
if you flashed vn rom earlier you should just do it again. just make sure you do a factory reset , and dalvik wipe.
If you need further help just look in the vn-rom thread for flashing procedure. anyway
here it is
http://forum.xda-developers.com/showthread.php?t=2503206
for more info on rooting and getting custom recovery search xda note 3 forum
mithudas28 said:
sorry didn't understand you I was answering the op.
if you flashed vn rom earlier you should just do it again. just make sure you do a factory reset , and dalvik wipe.
If you need further help just look in the vn-rom thread for flashing procedure. anyway
here it is
http://forum.xda-developers.com/showthread.php?t=2503206
for more info on rooting and getting custom recovery search xda note 3 forum
Click to expand...
Click to collapse
*****
*****
*****
im lost my imei and network and not save efs backup in my phone or ext.memory and i found away to recover my original imei and resolve this
/*/*/*/*/*/*/*/*/
thank you for every one comment on my problem
at last sorry for my bad language
:good::good::good:
dul-faqar said:
*****
*****
*****
im lost my imei and network and not save efs backup in my phone or ext.memory and i found away to recover my original imei and resolve this
/*/*/*/*/*/*/*/*/
thank you for every one comment on my problem
at last sorry for my bad language
:good::good::good:
Click to expand...
Click to collapse
happy for you.
well how did you manage it ?? please explain .
I have a similar problem but quite complicated not related to vn rom.
mithudas28 said:
happy for you.
well how did you manage it ?? please explain .
I have a similar problem but quite complicated not related to vn rom.
Click to expand...
Click to collapse
in the begining format my phone and enter to download mode and install official rom consist of four files {MODEM+CSC+BOOTLOADER+PDA}
after turn on my phone doing root CWM and install:_
1-for ur phone use terminal emulator,busy box,super su
2-for ur pc use EFS Professional ....turn on EFS Professional and choice EFS Professional and ok then let him connect with ur phone and automatic download efs ..just wait few second ur phone will be ok and same imei in the phone back
sorry for my bad language
if it help don't forget to press thanks
dul-faqar said:
in the begining format my phone and enter to download mode and install official rom consist of four files {MODEM+CSC+BOOTLOADER+PDA}
after turn on my phone doing root CWM and install:_
1-for ur phone use terminal emulator,busy box,super su
2-for ur pc use EFS Professional ....turn on EFS Professional and choice EFS Professional and ok then let him connect with ur phone and automatic download efs ..just wait few second ur phone will be ok and same imei in the phone back
sorry for my bad language
if it help don't forget to press thanks
Click to expand...
Click to collapse
will try an let you know hope this works never tried efs professional. well did you have a backup with efs professional or it just worked by itself downloading some files from the internet
mithudas28 said:
will try an let you know hope this works never tried efs professional. well did you have a backup with efs professional or it just worked by itself downloading some files from the internet
Click to expand...
Click to collapse
no no no just worked by itself downloading some files from the internet ihave not any backup on my phone or ext.memory

Null IMEI after flashing with Odin

My S4 GT-I9500 was upgraded to lollipop 5.0.1 by the service centre guys and it's not supported by my official android policy.
So after googling a lot i found out a you tube vdo for downgrading lollipop 5.0 to kitkat 4.4.2 on S5 and as shown i did the exact steps i.e. downloaded firware from SAMFIRM & used ODIn to flash it and the entire process went fine, no errors.
But after booting up there is no mobile network connectivity and IMEI number is unknown , IMEI SV is unknown.
Is it possible to make the phone working again, any help would be greatly appreciated.
sumanjit said:
My S4 GT-I9500 was upgraded to lollipop 5.0.1 by the service centre guys and it's not supported by my official android policy.
So after googling a lot i found out a you tube vdo for downgrading lollipop 5.0 to kitkat 4.4.2 on S5 and as shown i did the exact steps i.e. downloaded firware from SAMFIRM & used ODIn to flash it and the entire process went fine, no errors.
But after booting up there is no mobile network connectivity and IMEI number is unknown , IMEI SV is unknown.
Is it possible to make the phone working again, any help would be greatly appreciated.
Click to expand...
Click to collapse
Hello sumanjit,
I faced this problem today! i was on Lollipop and then tried to downgrade it to Kitkat but that erased my IMEI number. To get it back I again flashed the stock 5.0.1 Firmware. And for downgrading it have a look at this - http://forum.xda-developers.com/galaxy-s4/general/i9500-easy-to-downgrade-official-t3036258 . You need to be rooted on 5.0.1 with a custom recovery.
All the best!
Mandark52 said:
Hello sumanjit,
I faced this problem today! i was on Lollipop and then tried to downgrade it to Kitkat but that erased my IMEI number. To get it back I again flashed the stock 5.0.1 Firmware. And for downgrading it have a look at this - http://forum.xda-developers.com/galaxy-s4/general/i9500-easy-to-downgrade-official-t3036258 . You need to be rooted on 5.0.1 with a custom recovery.
All the best!
Click to expand...
Click to collapse
Hi,
Thanks for the suggestion , after flashing back to stock 5.0.1 firmware it works again. I went through the link which you have mentioned but not sure how do i clean wipe using CWM recovery, please help me with that. Also did you try it and is it working.
Many thanks for your time.
sumanjit said:
Hi,
Thanks for the suggestion , after flashing back to stock 5.0.1 firmware it works again. I went through the link which you have mentioned but not sure how do i clean wipe using CWM recovery, please help me with that. Also did you try it and is it working.
Many thanks for your time.
Click to expand...
Click to collapse
I had Philz Touch recovery. In it select- Wipe data reset.
Then you will be asked to - 1) wipe data reset
2) wipe clean install (something like this).
So select the clean install option.
Boot to download and flash the firmware.
Note: I tried the same and got my IMEI nulled. And I was suggested to follow the same procedure as displayed in that post. I haven't tested the yet. I am still to restore the EFS partition and will report back with any probable solution.
If helped press thanks!
All the best!
Mandark52 said:
I had Philz Touch recovery. In it select- Wipe data reset.
Then you will be asked to - 1) wipe data reset
2) wipe clean install (something like this).
So select the clean install option.
Boot to download and flash the firmware.
Note: I tried the same and got my IMEI nulled. And I was suggested to follow the same procedure as displayed in that post. I haven't tested the yet. I am still to restore the EFS partition and will report back with any probable solution.
If helped press thanks!
All the best!
Click to expand...
Click to collapse
Sorry, i got a little confused with the last paragraph. Did you face the IMEI nulled issue even after doing Philz Touch recovery?
sumanjit said:
Sorry, i got a little confused with the last paragraph. Did you face the IMEI nulled issue even after doing Philz Touch recovery?
Click to expand...
Click to collapse
Yes my IMEI was nulled. The main problem is the new Lollipop bootloader. But many members claimed here : http://forum.xda-developers.com/galaxy-s4/general/i9500-easy-to-downgrade-official-t3036258 that after following the exact steps they successfully downgraded to KitKat. Now I have XXUFN12 firmware so I am still downloading UUBGNJ1 to check whether it works.
All the best!

Samsung Galaxy S4 I9500 got bootloop after trying to install custom kernel

i had my i9500 rooted and had TWRP custom recovery i tried to install custom kernel through TWRP then restarted my phone and got a bootloop and when i press any key it gives me 2 vibrations and nothing more and TWRP was gone and i got back to stock recovery mode and i don't know what to do as i have no backup for my data and it is really important so please help me i would appreciate it so much
i think the problem is with either the kernel or the bootloader but i can't find any of them to flash through odin
my firmware version is 4.2.2 jellybean
help me please
Hesham Mohsen said:
i had my i9500 rooted and had TWRP custom recovery i tried to install custom kernel through TWRP then restarted my phone and got a bootloop and when i press any key it gives me 2 vibrations and nothing more and TWRP was gone and i got back to stock recovery mode and i don't know what to do as i have no backup for my data and it is really important so please help me i would appreciate it so much
i think the problem is with either the kernel or the bootloader but i can't find any of them to flash through odin
my firmware version is 4.2.2 jellybean
help me please
Click to expand...
Click to collapse
Have you tried flashing TWRP again?
GDReaper said:
Have you tried flashing TWRP again?
Click to expand...
Click to collapse
tried flashing TWRP through odin but it doesn't work
i could get some of my files through adb and then flashed a whole rom again but i had no signal and now i'm trying to flash modem only to get signal back
Try Flashing stock firmware from Odin it may help you
he doesn't want to wipe his data.
I think it is the only way to get his phone back
Hesham Mohsen said:
tried flashing TWRP through odin but it doesn't work
i could get some of my files through adb and then flashed a whole rom again but i had no signal and now i'm trying to flash modem only to get signal back
Click to expand...
Click to collapse
You can find some things here
http://forum.xda-developers.com/showthread.php?t=2192025
Are you sure that you've flashed the right version of twrp and ROM for you're device?
PePeMoke said:
You can find some things here
http://forum.xda-developers.com/showthread.php?t=2192025
Are you sure that you've flashed the right version of twrp and ROM for you're device?
Click to expand...
Click to collapse
i got everything ok a few days ago as i found the imei gone so i tried flashing different modems some got me an imei by searching i found many people got the same imei but i can't register on any signal i then flashed the official lollipop version for i9500 not the same model for me but it worked and my imei was restored and signal worked fine then i flashed halcyon rom an it is running very good with halcyon kernel and everything is fine
just wondering if fast charging mode can be enabled for me or not
thanks for all your help guys

Galaxy Note 4 N916S NULL IMEI

When i flashed my custom rom,i didn't notice that my imei was already null. i tried factory reset and flashed the original OS from sammobile and yet still no imei,i hope someone here could help me on how to retrieve my imei again. Thanks!
Edit:tried to flash stock modem thru odin,nothing changed.
krey456 said:
When i flashed my custom rom,i didn't notice that my imei was already null. i tried factory reset and flashed the original OS from sammobile and yet still no imei,i hope someone here could help me on how to retrieve my imei again. Thanks!
Edit:tried to flash stock modem thru odin,nothing changed.
Click to expand...
Click to collapse
If you made efs backup from twrp before you can restore it.
How you root your n916, i still have no luck

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