Suddenly unknown IMEI/Baseband. Any solutions (w/o rooting)? - Galaxy Tab S2 Q&A, Help & Troubleshooting

For the last month my wife has been using her new Tab S2 on WIFI only while vacationing abroad. Yesterday we got home and I inserted her sim into the tablet and she was able to connect via the LTE system and access the internet. This morning suddenly she could not access the internet via LTE. In the ABOUT tab the baseband is blank and the IMEI shows up as null. Nothing was installed nor were any updates received that I can tell. It seems clear that the EFS file is corrupted.
1. The information I have found (none of it from XDA) about repairing the problem all seem to assume a backup of the EFS file, which, of course I don't have.
2. Some require root, which I would prefer not to do, as the tablet is under warranty and don't want to void it.
3. There is an EFS Repair tool online, which is a bat file which tries to created a copy of the EFS file and then to have ODIN rewrite it. The backup phase fails with a message that there is no EFS file to backup. (It's not clear to me how backing up and then restoring a corrupt file would help anyway).
4. There is no access to the phones internal control panel via secret code, or the page that comes up is blank.
5. I tried a factory reset but it did not fix the problem.
Any help out there?
thanks
sblevine

sblevine said:
For the last month my wife has been using her new Tab S2 on WIFI only while vacationing abroad. Yesterday we got home and I inserted her sim into the tablet and she was able to connect via the LTE system and access the internet. This morning suddenly she could not access the internet via LTE. In the ABOUT tab the baseband is blank and the IMEI shows up as null. Nothing was installed nor were any updates received that I can tell. It seems clear that the EFS file is corrupted.
1. The information I have found (none of it from XDA) about repairing the problem all seem to assume a backup of the EFS file, which, of course I don't have.
2. Some require root, which I would prefer not to do, as the tablet is under warranty and don't want to void it.
3. There is an EFS Repair tool online, which is a bat file which tries to created a copy of the EFS file and then to have ODIN rewrite it. The backup phase fails with a message that there is no EFS file to backup. (It's not clear to me how backing up and then restoring a corrupt file would help anyway).
4. There is no access to the phones internal control panel via secret code, or the page that comes up is blank.
5. I tried a factory reset but it did not fix the problem.
Any help out there?
thanks
sblevine
Click to expand...
Click to collapse
Just flash rom on it via Oden it will not trip Knox as long as it is a stock rom

stinka318 said:
Just flash rom on it via Oden it will not trip Knox as long as it is a stock rom
Click to expand...
Click to collapse
reflashing did not fix it. The baseband is still unknown and the imei is still null. (I must admit I was wondering where the stock rom was going to get the IMEI from during flashing).
Any other ideas, please?

sblevine said:
reflashing did not fix it. The baseband is still unknown and the imei is still null. (I must admit I was wondering where the stock rom was going to get the IMEI from during flashing).
Any other ideas, please?
Click to expand...
Click to collapse
You may need to send it back to Samsung to get it fixed they will be able to pull a log cat and see what happened.

Related

[Q] Restoring IMEI to SGS Cyaogenmod7

heya,
i have done this to about a dozen phones (samsung galaxy s gt-i9000 and gt-i9000t) and i have never had this happen before.
last night i was given a gt-i9000t to debrand (telstra) and update from 2.2.
so as normal i put the cyanogenmod 7 (update-cm-7.1.0-GalaxyS-signed.zip) on internal memory, use odin3 1.85 to flash hardcore-seedmod.tar to the phone.
restart in recovery mode and then select install zip, and select the update-cm-7.1.0-GalaxyS-signed.zip and it installs it, clear the partitions and then the cache etc, restart the phone, and the cyanogenmod 7 installs.
bobs ya uncle its rooted, debranded, updated, and made epic in one swoop.
and uptil last night, never had a hickup,
last night i did what i normally do, back everything up (contacts pics etc)
and then did what i listed above, and now the imei has been cleared to 000000000000000 instead of it being XXX112040608XXX.
since i have never had a problem with it in the past i never did a backup of the system files.
is there anyway i can edit a file to put this imei back into the phone.
also i have flashed it with a few roms from samfirmwares.com and the imei is still all 0's.
thanks
There is a service offered at forum.samdroid.net . It costs 10€ . He will rewrite corrupted file.
all good
i have been able to restore the firmware to a default samsung imei code, and now the phone is working again.
[X] please close thread [X]
massiveoni said:
all good
i have been able to restore the firmware to a default samsung imei code, and now the phone is working again.
[X] please close thread [X]
Click to expand...
Click to collapse
Clear your first post, it's not good posting your IMEI on the net

[Q] {SOLVED} IMEI blank after flashing SlimICS through CWM

- SOLVED! Flashed a different ICS Rom along with Semaphore kernel and everything works again!
Hey all!
I have a BIG problem... Yesterday I flashed SlimICS 2.9 on my friend's Galaxy S device through CWM. Installation went fine and system booted up OK. I quickly noticed that there was no mobile network available and I went to check the IMEI as I was suspecting the worst. The IMEI showed up as blank on the phone...
I checked the /efs folder and all the files were present (nv_data.bin and such). I also noticed that there was a /efs backup on the internal sdcard. I tried overwriting the files from the backup to the /efs folder on the root to no avail. Upon deleting the /efs folder or any files in the folder, they are automatically placed back. Why does that happen?
I cannot use the phone's usb port since it's broken.. so all has to be done from within the phone. (External sdcard still functions, ofcourse).
Spent a lot of hours searching and reading - I'm desperate!
Robin2 said:
Hey all!
I have a BIG problem... Yesterday I flashed SlimICS 2.9 on my friend's Galaxy S device through CWM. Installation went fine and system booted up OK. I quickly noticed that there was no mobile network available and I went to check the IMEI as I was suspecting the worst. The IMEI showed up as blank on the phone...
I checked the /efs folder and all the files were present (nv_data.bin and such). I also noticed that there was a /efs backup on the internal sdcard. I tried overwriting the files from the backup to the /efs folder on the root to no avail. Upon deleting the /efs folder or any files in the folder, they are automatically placed back. Why does that happen?
I cannot use the phone's usb port since it's broken.. so all has to be done from within the phone. (External sdcard still functions, ofcourse).
Spent a lot of hours searching and reading - I'm desperate! Therefore I'll happily reward the person who can help me out with $15! I know it's not much, but I cannot spare much money at this moment..
Click to expand...
Click to collapse
There is an app "Mobile Odin" .. us this to flash stock firmware on your friend's phone.. I haven't used this app myself but it should work.. you can download the stock firmware from sammobile.com .. once you flash the stock firmware your IMEI number should be restored... then you can try flashing rom once again
PS: Please don't offer money like this.. donating to the developers of Roms and apps is enough.. they are the ones doing the main stuff..
Didn't know that Mobile Odin existed! Seems like a great program.. I installed it and upon opening it tells me that ''A compatible device was detected, but with unexpected partition layout. Mobile ODIN cannot operate. This is a common error on CM and MIUI ROMs on some devices.''
What ROM would I flash through CWM to get this app to work for me? Is Mobile ODIN incompatible with ICS?
UPDATE:
I flashed a different ICS Rom, Codename 1.5.6, and now the IMEI shows up when dialing *#06#! I was also able to unlock the SIM!
EDIT:
I was able to call! However Data connection does not work! Even with the right APN settings... Would this be caused by the firmware?
dont worry,i had the same bug.you have to flash another kernel,Glitch,or Semaphore for example...then you will get data connection
Lawrrer said:
dont worry,i had the same bug.you have to flash another kernel,Glitch,or Semaphore for example...then you will get data connection
Click to expand...
Click to collapse
Yes this is what worked for me. Figured this out like 5 mins before you posted.
Thanks for the reply, though!
Sorry, wrong place

Gurus Please help. Two Galaxy Note 4 T-mobile lost fingerprint sensor function.

So I bought a refurb Note 4 and odin flashed it to latest marshmallow. Rooted/twrp and restored my image from my defective old one. Well everything worked except I lost my finger print sensor. So went to twrp and deleted
password.key
pattern.key
locksettings.db-wal
locksettings.db-shm
locksettings.db
Then I could get back into the phone, but still when trying to register fingerprint I get the error message and can't enter them. So I said fine, I will just odin flash stock and factory reset and start fresh. Well I have done that and the phone dialer *#0*# diagnostics sensor shows fingerprint reader as NULL, I lost the version # and all functionality. So I odin flashed the previous two stock T-mobile Note 4 images, factory reset and still even when starting from scratch now the fingerprint sensor is NULL and doesn't work. So I figured somehow I got a defective fingerprint scanner, I returned that phone, got another one that had kitkat and the fingerprint scanner worked. I flashed it to Marshmallow and now the same thing. I am pulling my hair out. How can software stock flash ruin my fingerprint sensor? How do I get it back? I am willing to flash any odin image/factory reset to do this and then just need to know what NOT to do so it doesn't happen again. There is no way both phones have a defective fingerprint scanner, so it is something that persists even AFTER an odin stock flash and factory reset?? Any help would be appreciated. The only other thing I noticed that I don't know what it means is on first boot it said something about no have DRK. Please flash ENG binary then install DRK. What is DRK? How do I install it, and will it get my fingerprint sensor working again?
Thanks in advance for any guru help.
P.S. I think the problem is I used my broken glass Note 4's twrp/nandroid image to restore the new phones, and I overwrote everything. My guess is the new phones where fingerprint sensors don't work have the old phones EFS, and I have no backup of the new phones EFS. I am only guessing this is the problem as I am newbish about EFS. I just don't see why I can't odin flash any version of T-mobile rom and get back to a REAL factory reset, not some partial one where things don't work. Help please.
hotstocks said:
So I bought a refurb Note 4 and odin flashed it to latest marshmallow. Rooted/twrp and restored my image from my defective old one. Well everything worked except I lost my finger print sensor. So went to twrp and deleted
password.key
pattern.key
locksettings.db-wal
locksettings.db-shm
locksettings.db
Then I could get back into the phone, but still when trying to register fingerprint I get the error message and can't enter them. So I said fine, I will just odin flash stock and factory reset and start fresh. Well I have done that and the phone dialer *#0*# diagnostics sensor shows fingerprint reader as NULL, I lost the version # and all functionality. So I odin flashed the previous two stock T-mobile Note 4 images, factory reset and still even when starting from scratch now the fingerprint sensor is NULL and doesn't work. So I figured somehow I got a defective fingerprint scanner, I returned that phone, got another one that had kitkat and the fingerprint scanner worked. I flashed it to Marshmallow and now the same thing. I am pulling my hair out. How can software stock flash ruin my fingerprint sensor? How do I get it back? I am willing to flash any odin image/factory reset to do this and then just need to know what NOT to do so it doesn't happen again. There is no way both phones have a defective fingerprint scanner, so it is something that persists even AFTER an odin stock flash and factory reset?? Any help would be appreciated. The only other thing I noticed that I don't know what it means is on first boot it said something about no have DRK. Please flash ENG binary then install DRK. What is DRK? How do I install it, and will it get my fingerprint sensor working again?
Thanks in advance for any guru help.
P.S. I think the problem is I used my broken glass Note 4's twrp/nandroid image to restore the new phones, and I overwrote everything. My guess is the new phones where fingerprint sensors don't work have the old phones EFS, and I have no backup of the new phones EFS. I am only guessing this is the problem as I am newbish about EFS. I just don't see why I can't odin flash any version of T-mobile rom and get back to a REAL factory reset, not some partial one where things don't work. Help please.
Click to expand...
Click to collapse
Flash n910t2 kitkat firmware in odin this will work 100% with n910t have a look post below.
http://forum.xda-developers.com/not...ws-want-to-downgrade-to-4-4-4-kitkat-t3447773
Once flash firmware do wipe data factory reset and wipe cache
Once finish setup at homescreen let the phone rest for few minutes then reboot
Next go check fingerprint scanner.
Once it works go ahead and flash regular n910t marshmallow firmware.
Drk is ( device root key ) i believe your device is rooted before and efs partition+imei is modified and when you tried to flash official firmware things went wrong somehow.and i don't see any working method to fix drk the only fix for drk is replace entire motherboard.
Download link for n910t2 firmware link below
https://mega.nz/#!bZ8nFIaA!u67ewIWGe8HRtI8-OdxFUPoXFvpACIKhtQtbnv7KU18
If this method does not work go ahead and download n910t 5.1 1 repair firmware with pit file from www.tsar3000.com and flash with pit file maybe it will work.and then go take ota update of marshmallow.
My best suggestion will be get rid of this device now dont waste your time and money and get new device instead of refurbished.
report back please.
First method didn't get fingerprint scanner back. And I cant find the n910t 5.1 1 repair firmware with pit file from www.tsar3000.com could you please link me to that file so I can try method #2?
Also is there anything special I should do in Odin like check boxes for Nand Erase All or Phone EFS Clear?? RE-partition? Anything that would get this back to completely erased and stock so fingerprint sensor software gets re-installed. in dialer *#0*# sensor fingerprint it went to null when it used to say a version, so wherever that software for the fingerprint scanner is stored is where my problem is.
Thanks
I found the pit file elsewhere. Can I use that pit file with the firmware I just flashed, and if so how? Or do I need to find the www.tsar3000.com n910t 5.11 repair firmware, because I can't find it anywhere on their site or I am just stupid? Please link to it and instructions, never flashed a pit.
Well I managed to get the pit and firmware to flash in an older odin, newer ones failed. But still when you dialpad *#0*# and go to sensors and down to bottom where finger print scanner is, it says NULL instead of a version and the test doesnt work. When you go to fingerprint scanner in the phone to register fingerprints it just keeps saying Attention an error has occured with fingerprint sensor, reboot.
I find it impossible to believe that there is no way to get the fingerprint sensor software/test back. I have done this on two phones so I KNOW the fingerprint sensor hardware works. Some bad EFS or rom flash lost the fingerprint sensor software and there must be a way to get it back. There is nothing wrong with the hardware of these two phones, it happened on a 910T and 910T3 both due to TWRP restoration of all checked boxes. Please help, I can flash anything from odin or twrp, SOMETHING has to re-install the fingerprint sensor software/dialer sensor info.
I also heard that the Samsung Experience at some Best Buy stores could fix these kind of issues, like they have a machine to REALLY overwrite all of the phone or something? I just don't see how odin flahing the firmware wouldn't do that, unless I need to check that Nand erase box or do something else? Please help or let me know if Best Buy kiosk is worth a shot.
hotstocks said:
I also heard that the Samsung Experience at some Best Buy stores could fix these kind of issues, like they have a machine to REALLY overwrite all of the phone or something? I just don't see how odin flahing the firmware wouldn't do that, unless I need to check that Nand erase box or do something else? Please help or let me know if Best Buy kiosk is worth a shot.
Click to expand...
Click to collapse
Sorry but tsar3000 removed n910t repair firmware
I'll give you pit file for 6.0.1 marshmallow
Flash 6.0.1 firmware with pit file in odin choose nand erase all
Choose pit file in pit tab in odin as in screenshot below.
But i highly suggest you return this device.
Good luck
https://mega.nz/#!yE0QkRgR!8DvGvAauRkb-2xmtH_3ZluoYwCvqNaaSOnXMLYB_CAI
Trex888 said:
Flash n910t2 kitkat firmware in odin this will work 100% with n910t have a look post below.
http://forum.xda-developers.com/not...ws-want-to-downgrade-to-4-4-4-kitkat-t3447773
Once flash firmware do wipe data factory reset and wipe cache
Once finish setup at homescreen let the phone rest for few minutes then reboot
Next go check fingerprint scanner.
Once it works go ahead and flash regular n910t marshmallow firmware.
Drk is ( device root key ) i believe your device is rooted before and efs partition+imei is modified and when you tried to flash official firmware things went wrong somehow.and i don't see any working method to fix drk the only fix for drk is replace entire motherboard.
Download link for n910t2 firmware link below
https://mega.nz/#!bZ8nFIaA!u67ewIWGe8HRtI8-OdxFUPoXFvpACIKhtQtbnv7KU18
If this method does not work go ahead and download n910t 5.1 1 repair firmware with pit file from www.tsar3000.com and flash with pit file maybe it will work.and then go take ota update of marshmallow.
My best suggestion will be get rid of this device now dont waste your time and money and get new device instead of refurbished.
report back please.
Click to expand...
Click to collapse
Trex888 said:
Sorry but tsar3000 removed n910t repair firmware
I'll give you pit file for 6.0.1 marshmallow
Flash 6.0.1 firmware with pit file in odin choose nand erase all
Choose pit file in pit tab in odin as in screenshot below.
But i highly suggest you return this device.
Good luck
https://mega.nz/#!yE0QkRgR!8DvGvAauRkb-2xmtH_3ZluoYwCvqNaaSOnXMLYB_CAI
Click to expand...
Click to collapse
Thanks I will try that. As far as returning it, I really can't and I got it for a great deal $150 and it is literally brand new, the screen is perfect, ect. I somehow was an idiot and used my old twrp file to flash the new phone because I didn't want to re-set up everything. Well I checked every box in twrp for the backup and restore. Even though they are the same exact model phone I think it somehow did something to the fingerprint scanner firmware and I still can't figure out why it won't come back. I tried it with two seperate phones that both did this, but other than the fingerprint scanner not working the phone is mint and runs perfectly, any rom. I will probably just keep it without fingerprint sensor if we can't figure this out, it is not like I even use it and this is my backup phone (have an LG V20). It is very annoying, but mainly because it should just work and doesn't. There is no way a flash can fry a fingerprint scanner and make it's software disappear, but this happened twice on two different phones after I did the twrp restore from my previous Note 4 T with all boxes checked. I didn't know you shouldn't check all backup boxes in twrp. Nevertheless it should go back to factory and isn't. GRRR
P.S. I'm wondering if flashing some other totally modified rom would install the fingerprint software again, maybe something like cyanogen? I have been out of rom flashing scene. If you think any might please link me.
I found this, and it seems to be the fix for my problem, except I don't understand step 5 (and obviously I have a N910T and N910T3 to fix) also SmartSwitch just freezes, you can never flash anything with it, so I will use Odin for that, I assume it does the same thing. Still haven't got the fingerprint sensor back and have done everything but step 5. Any other ideas or explanation of step 5 would help. Thanks.
Found a solution if anyone ever stumbles across this thread.
How it happened:
I did a full Twrp backup, including EFS on a n910T. I received a replacement n910t. I thought I could restore the twrp backup from the old straight to the new n910t. I was wrong. EFS is device depending and contains the individual phone info like imei,S/N,etc. Basically my new phone took characteristics of the old one and the EFS became corrupted. My fingerprint sensor didn't work and I had the "dm-vertiy verification failed. If the dm-verity fails, finger print sensor won't work.
How I repaired my EFS, or what I did to get it to work. Your mileage may vary.
All of this on stock rom: I got the stock from by using smart-switch and doing emergency recovery, entering my model number and serial number. I then cf rooted and flashed twrp using odin.
1. I check to make sure my IMEI and S/N numbers stored in the phone (about device) matched the sticker on the back. My IMEI matched but my S/N did not. My S/N was from my old phone, big whoops!
2. I corrected my S/N by editing the serial number file found under your EFS folder. You need root access to edit it. I use room toolbox lite, root browser to edit it.
3. Because my EFS became corrupted, my phone was in limp mode, eg it was slow and lagging, it was stuck in "factory mode".
4. I took the phone out of factory mode. Again you need root access and root browser. Go to EFS folder/factoryapp/factorymode and edit the file. Change it to off. Also go to efs folder/factoryapp/keystry and turn it off also. Reboot.
5. I entered this command:
mke2fs /dev/block/mmcblk0p13 (for N910G Note 4)
mkdir /efs
mount -t ext4 /dev/block/mmcblk0p13 /efs
6. Do a factory reset, reboot system
7. I then did a stock firmware flash again with smart-switch. Everything works again now. This time I will make sure I back up my efs but don't try to restore it.
Can someone with a T-Mobile Galaxy Note 4 N910T3 that has a TWRP backup INCLUDING the EFS please upload that and give me a link. I screwed up my EFS and if someone with the same phone could please make and upload their TWRP backup (just with EFS box checked very small and not your data) for me it would be greatly appreciated. I know I will have to go into it and edit my serial # from yours, but it should get me back working.
Thanks
hotstocks said:
Can someone with a T-Mobile Galaxy Note 4 N910T3 that has a TWRP backup INCLUDING the EFS please upload that and give me a link. I screwed up my EFS and if someone with the same phone could please make and upload their TWRP backup (just with EFS box checked very small and not your data) for me it would be greatly appreciated. I know I will have to go into it and edit my serial # from yours, but it should get me back working.
Thanks
Click to expand...
Click to collapse
Efs backup from another device will never work because it's related to your phone's specific hardware.
You did big mistake that you flash backup and efs from old phone to new one that completely screw up your efs partitions and drk ( device root key ).
Sorry but you should make always efs backup from twrp in microsd card before start messing with phone. Cuz flashing always risky job.
Trust me odin or twrp will not going to help you.
Dont waste your time You should go to repair center cuz they have tools like dongle box to fix efs and imei.
They will write new cert files and restore your efs but i dont think they can fix drk cuz i see many drk damage cases but didn't see any working method unless changing entire motherboard.
Thank you. I have been doing a lot of research, and an EFS TWRP file from the same exact model N910T3 would work if I flashed it and then went in and edited that serial # to my phone's serial #. It sucks that I did not have a backup of EFS in TWRP and now no matter what rom I flash, wipe, ect, I can not get my fingerprint sensor back. In dialer *#0*# sensor it went to NULL from a version and it doesn't work at all, just get the error when trying to register fingerprints. I read that someone fixed this exact problem by getting a TWRP of just the EFS, flashing it, then editing the serial #'s, so I wanted to try that. But need a TWRP EFS uploaded for N910T3 as I can not find one anywhere. Unless you have another idea. I mean the phone works fine other than the lack of fingerprint sensor, but I think it is also in no verity and factory mode whatever that means. I posted the fix above that worked for someone, but once again I don't have the TWRP EFS and I don't understand how to do part 5. There has to be a way to either entirely wipe everything including EFS and getting my phone back to factory new thru Odin or TWRP flashing an EFS and changing serial # to my sticker # so I can get the damn fingerprint sensor working. I think the problem is I have a N910T EFS on my N910T3 which allows everything to work except fingerprint sensor.
Trex888 said:
Efs backup from another device will never work because it's related to your phone's specific hardware.
You did big mistake that you flash backup and efs from old phone to new one that completely screw up your efs partitions and drk ( device root key ).
Sorry but you should make always efs backup from twrp in microsd card before start messing with phone. Cuz flashing always risky job.
Trust me odin or twrp will not going to help you.
Dont waste your time You should go to repair center cuz they have tools like dongle box to fix efs and imei.
They will write new cert files and restore your efs but i dont think they can fix drk cuz i see many drk damage cases but didn't see any working method unless changing entire motherboard.
Click to expand...
Click to collapse
Thanks. What is DRK and if I go to repair center does it even matter if they can't fix drk but they get the fingerprint sensor working with new EFS dongle? Also are you talking about a local T-mobile store or some Samsung repair center that I have to mail the phone to and pay a lot? Can you link me to repair center in USA Michigan or how to find one? Thanks again
Sorry i dont live in usa no ideas
if you have warranty you go to samsung or go to any local repair shop.
Tell them all issues and hopefully they will fix.

URGENT: Re-installed Stock Firmware (update-6.0.1) - NO NETWORK ACCESS

Hey, everyone, I need some help:
On my SM-920G, I re-installed stock 6.0.1 (last official update before 7.0) and, now, I don't have access to the network (says emergency calls only). IMEI and serial number are both intact. What can I do to regain access to my network? I know it's not a motherboard problem because it happened after flashing stock software. I WOULD REALLY APPRECIATE YOUR HELP.
Thank you,
VinceLupe
vince.lupe said:
Hey, everyone, I need some help:
Thank you,
VinceLupe
Click to expand...
Click to collapse
I would remove and reinstall your SIM card and check your APN settings.
vince.lupe said:
Hey, everyone, I need some help:
On my SM-920G, I re-installed stock 6.0.1 (last official update before 7.0) and, now, I don't have access to the network (says emergency calls only). IMEI and serial number are both intact. What can I do to regain access to my network? I know it's not a motherboard problem because it happened after flashing stock software. I WOULD REALLY APPRECIATE YOUR HELP.
Thank you,
VinceLupe
Click to expand...
Click to collapse
Did you install the right firmware for your region? You should check that or flash right modem file. If all else fails use kies to restore phone to factory or flash a custom rom and check if everything works.
Mufrad said:
Did you install the right firmware for your region? You should check that or flash right modem file. If all else fails use kies to restore phone to factory or flash a custom rom and check if everything works.
Click to expand...
Click to collapse
So, I actually had to have an IMEI change... Long story - but, my question now is: is it possible to return to stock (completely stock) and NOT lose my IMEI number? I've heard some people say, "yes," and O be heard some people say, "no." Is it possible?
vince.lupe said:
So, I actually had to have an IMEI change... Long story - but, my question now is: is it possible to return to stock (completely stock) and NOT lose my IMEI number? I've heard some people say, "yes," and O be heard some people say, "no." Is it possible?
Click to expand...
Click to collapse
I don't think there is any risk of losing IMEI if you flash stock with odin, but if you have root then firstly take an efs backup, just in case, efs is where your IMEI is stored.
Mufrad said:
I don't think there is any risk of losing IMEI if you flash stock with odin, but if you have root then firstly take an efs backup, just in case, efs is where your IMEI is stored.
Click to expand...
Click to collapse
What is the safest way and most effective way to take an EFS backup?
vince.lupe said:
What is the safest way and most effective way to take an EFS backup?
Click to expand...
Click to collapse
If you have root then in the root folder you will find a folder called efs. Just copy it and save it to your SD card or your computer. If you have custom recovery then you can save it from the backup option but I guess that won't help much if you flash stock with odin then it will remove your custom recovery. There are also some apps on the play store but I never used them, I use the first method.
Mufrad said:
If you have root then in the root folder you will find a folder called efs. Just copy it and save it to your SD card or your computer. If you have custom recovery then you can save it from the backup option but I guess that won't help much if you flash stock with odin then it will remove your custom recovery. There are also some apps on the play store but I never used them, I use the first method.
Click to expand...
Click to collapse
Yeah, I'm just on stock, so that won't work - but, now I have another issue:
So, here's what happened... I got my IMEI changed, and all was good. But, then I realized that my phone was rooted. I tried to flash magisk to have magisk installed, and then my phone wouldn't boot up. Afterwards, I flashed stock to restore official device status, but when I did so, I realized that my network wasn't working. My IMEI (clean IMEI) is still showing, but I DO NOT have any access to my network and can't search the web or anything. What could be the issue, and what is the easiest way to fix it?
vince.lupe said:
Yeah, I'm just on stock, so that won't work - but, now I have another issue:
So, here's what happened... I got my IMEI changed, and all was good. But, then I realized that my phone was rooted. I tried to flash magisk to have magisk installed, and then my phone wouldn't boot up. Afterwards, I flashed stock to restore official device status, but when I did so, I realized that my network wasn't working. My IMEI (clean IMEI) is still showing, but I DO NOT have any access to my network and can't search the web or anything. What could be the issue, and what is the easiest way to fix it?
Click to expand...
Click to collapse
Did you flash the correct firmware? The same region as it was when it was working? Flashing a stock rom from a different region sometimes causes this and you need to flash the right one or at least the 'modem' file of the right one to get it working. Or you could use Samsung Kies software to completely recover your phone to its original state when it was bought. Also, What do you mean by saying changed IMEI? Did it not show it correctly or got corrupted and you fixed it? or you changed it completely to a different one from the original?
If you have a good IMEI just call your provider and give them your IMEI and your sim card numbers.
CodeNameRedNeck said:
If you have a good IMEI just call your provider and give them your IMEI and your sim card numbers.
Click to expand...
Click to collapse
CodeNameRedNeck,
So, I have a good IMEI number, but I cannot register the network service. It tells me "Emergency Calls Only" even though it shows a signal in the top right hand corner. Are you saying that I just need to call TIGO (I am in Bolivia) and register my IMEI number as well the SIM card numbers - or, could it be that there is an even deeper issue? Also, which SIM card numbers are you talking about? Thank you, my friend.
Mufrad said:
Did you flash the correct firmware? The same region as it was when it was working? Flashing a stock rom from a different region sometimes causes this and you need to flash the right one or at least the 'modem' file of the right one to get it working. Or you could use Samsung Kies software to completely recover your phone to its original state when it was bought. Also, What do you mean by saying changed IMEI? Did it not show it correctly or got corrupted and you fixed it? or you changed it completely to a different one from the original?
Click to expand...
Click to collapse
Mufrad,
I completely changed the IMEI to a clean one because, apparently, when I traded for the Note 5 (I am in Bolivia, and that's what people do here), the original IMEI was put on the blacklist. So, now I have a completely different IMEI that is clean (unreported), but I do not have any network access at all - furthermore, when I access the menu using *#0011#, it says "IMEI Status: NG" under IMEI Status. I'm not sure if it's a software problem? I have a friend looking at the phone, but I do not have any idea how it's going because he still hasn't been able to fix it.
vince.lupe said:
CodeNameRedNeck,
Thank you, my friend.
Click to expand...
Click to collapse
When my son switched from an iphone to Android we had to call AT&T and give them those numbers before it worked. I had an Xperia phone that I had to do the same with. There are apps that can read your sim card number. It should also be printed on your sim card.
i ha
vince.lupe said:
Mufrad,
I completely changed the IMEI to a clean one because, apparently, when I traded for the Note 5 (I am in Bolivia, and that's what people do here), the original IMEI was put on the blacklist. So, now I have a completely different IMEI that is clean (unreported), but I do not have any network access at all - furthermore, when I access the menu using *#0011#, it says "IMEI Status: NG" under IMEI Status. I'm not sure if it's a software problem? I have a friend looking at the phone, but I do not have any idea how it's going because he still hasn't been able to fix it.
Click to expand...
Click to collapse
plz tell did you fix it and how to fix it???plz help

Question EFS folder

Hello, I need help to be able to recover my phone, apparently the EFS folder is corrupted and I do not have a mobile network, only Wi-Fi. If anyone can backup your EFS folder and share it so that I can restore my phone, I would be very grateful.
Order a new phone, copy EFS, return phone...
hahaha , I thought so, but it is a bit expensive, I bought the equipment on aliexpress and I live in Chile, South America
how you going to do that and we dont have unlocked bootloader and root and it will not work 100% because i did that with s6 couple years ago it will not work even if some one gives you his efs folder that contain his imei and device unique ids serials and that's not going to happen anyways...
i remember scrwing my galaxy s6 EFS folder it was a nightmare i begged all over internet not one one helped me so i end up going to repair shop and i got new certificat with octoplus box with 20bucks
all you need is find some one with repair shop who has octoplus box google this
OCTOPLUS FRP TOOL V.2.1.7 IS OUT! it will genarate new certificate for the device the network will work again but it will keep loose signal time to time thats whatshappend to my s6 and you will never get your original imei back again (repair it with octoplusbox and sell it)​
Sektocl said:
Hello, I need help to be able to recover my phone, apparently the EFS folder is corrupted and I do not have a mobile network, only Wi-Fi. If anyone can backup your EFS folder and share it so that I can restore my phone, I would be very grateful.
Click to expand...
Click to collapse
Download the full OTA firmware for your device (ex. OTA for RMX3311 if originally your device was RMX3311) and the OnePlus Updater app. Install that app and after that install manually the OTA file you just downloaded. You will get you mobile data connection back.

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