Develop Bugs

[Q] Trouble with network connectivity probably caused by EFS???

Hello, this is really weird. In fact, when I insert the SIM to my Note 2 N7100 and turn it on, it allows me to make emergency call, but I cannot use it to make any others and it doesn't show the carrier name (it shows Emergency call only). And when I try to use it to make normal phone calls, it says that I am not registered to a mobile network. I try to factory reset my phone, but the problem remains. I then try to remove the SIM card, and it says that I need to insert a SIM card (that means that it is not a hardware problem since it recognizes the card). I then try to go to the mobile network setting to try to connect to the network manually, it connects me but it shows me a warning which says that the mobile network service is not available (and the Emergency call only label remains). However, I am sure that this is not the problem of the card neither since when I insert the card to my Moto MB860, I can make calls as usual. So, what is the problem ??? It seems to me that the problem happens spontaneously since it works perfectly until yesterday. And all other wireless function works fine including wifi , Bluetooth and GPS and the only thing goes wrong is 3g and 2g.
Additional information:
ROM: Omega v.16
Carrier: Fido Canada (as you can see)
Thanks.

What comes to my mind at first that something wrong with your sim card but if you insist that everything is ok with your card so I don't know what to suggest to you. Is it not related with your Omega ROM?
Sent from my GT-N7100 using xda premium

artorelis said:
What comes to my mind at first that something wrong with your sim card but if you insist that everything is ok with your card so I don't know what to suggest to you. Is it not related with your Omega ROM?
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
Ya, I was asking this question on the Omega forum and I am waiting for the right response.
Sent from my GT-N7100 using xda premium

It does seem to be Efs related. Did u downgrade from the latest firmware ? Check these links-
http://forum.xda-developers.com/showthread.php?t=2332913
http://forum.xda-developers.com/showthread.php?t=2331833
Sent from my GT-N7100 using xda app-developers app

joshphilips said:
It does seem to be Efs related. Did u downgrade from the latest firmware ? Check these links-
http://forum.xda-developers.com/showthread.php?t=2332913
http://forum.xda-developers.com/showthread.php?t=2331833
Sent from my GT-N7100 using xda app-developers app
Click to expand...
Click to collapse
Yes, I did downgrade from v17 back to 16 since something went wrong with Poweramp but I forgot that if I selected for the efs backup or not since I (stupidly) didn't think that efs is important...:banghead:
Sent from my GT-N7100 using xda premium

Do some basic troubleshooting:
Does the IMEI number from dialling *#06# match the one on the sticker?
If the answer to this is yes: Then you should contact your carrier as it sounds like your IMEI might have been blacklisted (often if a phone is reported stolen)
If the answer is no: Then you need to fix your IMEI so it matches as it should. This would usually be done by restoring your EFS backup. I suggest restoring a totally stock Firmware if they don't match and you don't have an EFS backup. But you should have one somewhere, surely? Every tutorial out there tells you to back it up...
Good luck.

muppetmania said:
Do some basic troubleshooting:
Does the IMEI number from dialling *#06# match the one on the sticker?
If the answer to this is yes: Then you should contact your carrier as it sounds like your IMEI might have been blacklisted (often if a phone is reported stolen)
If the answer is no: Then you need to fix your IMEI so it matches as it should. This would usually be done by restoring your EFS backup. I suggest restoring a totally stock Firmware if they don't match and you don't have an EFS backup. But you should have one somewhere, surely? Every tutorial out there tells you to back it up...
Good luck.
Click to expand...
Click to collapse
Thanks for replying, I should have a backup, but it probably be the wrong one. Anyway I will go for a full stock restore since I have the firmware with me now.
Sent from my GT-N7100 using xda premium

muppetmania said:
Do some basic troubleshooting:
Does the IMEI number from dialling *#06# match the one on the sticker?
Good luck.
Click to expand...
Click to collapse
Do you mean the one in the About Device ==> Status? In fact, the IMEI from the dialing does match the one in About Device ==> Status. However, I don't get your instruction since if in the case where IMEI from the setting matches the one on the dialer means that my phone is reported to be stolen, then why I have to make the IMEI in the setting and the one shown in the dialer the same?

Dan Law 001 said:
Do you mean the one in the About Device ==> Status? In fact, the IMEI from the dialing does match the one in About Device ==> Status. However, I don't get your instruction since if in the case where IMEI from the setting matches the one on the dialer means that my phone is reported to be stolen, then why I have to make the IMEI in the setting and the one shown in the dialer the same?
Click to expand...
Click to collapse
No, when I say "The one on the sticker" I, strangely enough, mean the one on the sticker.
Take off your battery and the phone will have a sticker/label with the IMEI on it. Verify that number matches.

muppetmania said:
No, when I say "The one on the sticker" I, strangely enough, mean the one on the sticker.
Take off your battery and the phone will have a sticker/label with the IMEI on it. Verify that number matches.
Click to expand...
Click to collapse
Thanks for your clearification No, it wasn't.:good: Then, I need to flash a stock firmware via Odin, right? In addition, when they say stock firmware, they mean the one that is on sammobile.com, right? In other words, if I have a Hong Kong version of GT-N7100, the file from this link (http://www.sammobile.com/firmwares/3/?download=15126) would be the correct one, isn't?

Dan Law 001 said:
Thanks for your clearification No, it wasn't.:good: Then, I need to flash a stock firmware via Odin, right? In addition, when they say stock firmware, they mean the one that is on sammobile.com, right? In other words, if I have a Hong Kong version of GT-N7100, the file from this link (http://www.sammobile.com/firmwares/3/?download=15126) would be the correct one, isn't?
Click to expand...
Click to collapse
That's correct, yes. It doesn't actually matter which N7100 image you flash, but if you have a Hong Kong version you might as well flash that image. Just make sure you don't have a N7105 (the LTE/Dual Carrier version) - flashing A N7105 to an N7100 (or the other way around) is a recipe for major disaster.
Flashing the image should fix the problem, but it also depends. If the EFS is really totally corrupt, it won't help, you need to have that EFS backup or take the phone to someone who can repair it for you. There are specialist tools to repair EFS, but they cost quite a bit of money. Most reliable phone unlocking places should have something that can help you.
Anyway, hopefully restoring to stock will fix the problem.
Good luck.

muppetmania said:
That's correct, yes. It doesn't actually matter which N7100 image you flash, but if you have a Hong Kong version you might as well flash that image. Just make sure you don't have a N7105 (the LTE/Dual Carrier version) - flashing A N7105 to an N7100 (or the other way around) is a recipe for major disaster.
Flashing the image should fix the problem, but it also depends. If the EFS is really totally corrupt, it won't help, you need to have that EFS backup or take the phone to someone who can repair it for you. There are specialist tools to repair EFS, but they cost quite a bit of money. Most reliable phone unlocking places should have something that can help you.
Anyway, hopefully restoring to stock will fix the problem.
Good luck.
Click to expand...
Click to collapse
Thanks for information, but how do I know that if the EFS is "totally" corrupt, "partially" corrupt, or not corrupt at all? In fact, I never touch the EFS in the root. Also, as I am not quite sure that if I have any previous EFS(S) backup or not, so, if possible, where does the backup(s) most likely to be found?

If you haven't taken an EFS backup yourself, then you won't have any.
I don't know the difference between corruption levels either, all I know is I've read a number of forum posts where someone has reflashed stock and their EFS data (i.e. the right IMEI number) is back. So I'd consider that to be a partial corruption. Others have flashed back to stock and it's still a bogus IMEI
Basically, flash back to stock. If it doesn't work, you'll have to take it in for repair.
UPDATE: Please read on - this information is incorrect - it is possible to recover with the correct modem flashed.

Before doing the flash with Odin, do I have to perform a factory reset? Since all the app data and homescreen layout remains the same after the reboot and the IMEI is also the same as before. And is it normal that my device got unrooted after flashing the stock firmware?

NOTE: The information from me in this post below is wrong
Dan Law 001 said:
Before doing the flash with Odin, do I have to perform a factory reset? Since all the app data and homescreen layout remains the same after the reboot and the IMEI is also the same as before. And is it normal that my device got unrooted after flashing the stock firmware?
Click to expand...
Click to collapse
It's normal your device got unrooted, yes. If your IMEI is still the same after ODIN and stock flash, then you have major issues (sorry!)
Doing a factory reset etc won't help. Your /efs partition is either gone or corrupt.
What IMEI does *#06# show?

muppetmania said:
it's normal your device got unrooted, yes. If your imei is still the same after odin and stock flash, then you have major issues (sorry!)
doing a factory reset etc won't help. Your /efs partition is either gone or corrupt.
What imei does *#06# show?
Click to expand...
Click to collapse
004999010640000 / 01

Dan Law 001 said:
004999010640000 / 01
Click to expand...
Click to collapse
Type 004999010640000 into Google...
Sorry man. Good luck getting it fixed.

just flash ME4 modem everything will be alright

bhasg1007 said:
just flash ME4 modem everything will be alright
Click to expand...
Click to collapse
Interesting to know - why does that work? (I don't doubt you, I just like to know why things work)

Just go through this thread http://forum.xda-developers.com/showthread.php?t=2333216
Even i had the same problem no network no imei nothing after downgrading so i just changed the modem and now everything is fine as it should be

N7105 factory mode

Hi guys, i seriously need help here. Please refer to attached screenshot.
I came here after flashing sokp 4.2.2 rom, and it prompted me an error saying encryption was unsuccessful. After which, i wasnt able to use my phone since then.
I tried to flash stock rom, and I end up with this. Please dont tell me to search the forums because Ive been to them countless times. I suppose this is a efs issue, because baseband and imei are unknown and I do not have a backup for it. Tried with the writing tool for imei, doesnt work as well.
Pls ask me for any info u might need/i missed out to help with this issue.

I think it's in the efs folder, you have to use a root browser and edit factory mode to off instead of on. It's been a long time since I saw factory mode so I'm not 100%
Sent from my GT-N7105 using Tapatalk

sawdoctor said:
I think it's in the efs folder, you have to use a root browser and edit factory mode to off instead of on. It's been a long time since I saw factory mode so I'm not 100%
Sent from my GT-N7105 using Tapatalk
Click to expand...
Click to collapse
Thanks for your reply. But even if I off factory mode, will the baseband and imei be unknown?

I'm not sure but if it doesn't the 2 things that might be worth trying are, emergency firmware recovery with kies or mskips toolkit has a rescue package but I think you have to go to skipsoft.net now as the thread was closed
Sent from my GT-N7105 using Tapatalk

It's current value is "OFF"...u have to write "ON"...i know it sounds weird but that is the value. Amd if u don't have any previous back up of EFS then there's nothing u can do at home to bring it back. Same thing happened to mine and i got it repaired from a local shop for cheap...they used z3x box...the problem is my IMEI is correct and network works fine...but everytime i flash a ROM i have to take it to the shop and get the modem patched or else it doesn't connect to network. So go to Samsung service centre and get it fixed by them...they'll charge u more but their fix is permanent.
Sent from my GT-N7100 using XDA Free mobile app

Alright, it seems like i have a backup of the efs, bt the nv_data.bin file is not included, and i read on other threads that this file is responsible for the imei and all? This backup is dated in aug2013, but it doesnt help in restoring my phone because the efs pro software doesnt see this as a backup file. Im actually looking for one of the thread that actually taught how to edit the nv_data.bin file, but no luck till date.

This thread might help
http://forum.xda-developers.com/showthread.php?t=1946915
[WARNING! + GUIDE] Backup and Restore IMEI / NV Data Procedure for GT-I9305. There is another post in this thread where they flashed the param.bin file
Check out the last post in this thread
http://forum.xda-developers.com/showthread.php?t=2724169
[Q]Null Imei, Baseband Unknown N7105
Sent from my GT-N7105 using Tapatalk

is it safe to flash the file that is intended for i9300? i dare not do that in case it doesnt work coz is different models.

ok my phone's all fixed up now. If anyone is interested to know, samsung kies original firmware helped.

IMEI : null , please help

hello ,
yesterday i woke up to find my note2 not working saying insert sim card
and when i tried to check imei it says null null
i never tried to install rom or root my phone , i just bought it 2 weeks ago
i've searched all the forums and found that people only get that error when they try to flash their device but i didnt .. it just suddenly happened
would you please guide me to fix it ?
my phone is galaxy note 2 N7100 and it has 4.3 jellybean

I suggest you to take your phone back. I think it is a hardware problem. You can do nothing for that. If your phone was rooted and has a backup of your original efs partition (IMEI) only than it is possible to recover your IMEI.
Sent from my SM-N9000Q using Tapatalk

dreamertr said:
I suggest you to take your phone back. I think it is a hardware problem. You can do nothing for that. If your phone was rooted and has a backup of your original efs partition (IMEI) only than it is possible to recover your IMEI.
Sent from my SM-N9000Q using Tapatalk
Click to expand...
Click to collapse
that phone was shipped to me from dubai and it has no warranty .. i cant do that

Oh thats bad. You must find a service who has good knowledge about Android phones. Did you checked your phone after you received it. Maybe the phone was without real IMEI. So far I know the GSM prowiders allow a couple days to use your unregistered device.
Sent from my SM-N9000Q using Tapatalk

hmmm
well thats bad
you haven't tried to root and flash custom rom at least if so if u have tried it is possible you might lose imei and which is why it is advisable to make an EFS back up.it could be a hardware related problem..try taking it to the samsung service center they are the ones who can really help you.

Try this solution: use Root Explorer enter to EFS folder, delete NV_DATA.BIN and NV_DATA.BIN.MD5. Reboot your device and check imei.
Sent from my Assistant

《OFF TOPIC》
If device is shipped with broken seal on box then...
It's stolen by someone & sold him online.
& I think someone(frustrated Owner) knows & banned his IMEI via complain.and that's why he got null error while no reason at all.
It's just a guess.
Sent from my GT-N7100 using XDA Premium 4 mobile app

q
:good:

HELP!! Lost IMEI number!!!

Lost the imei tinkering.. Have no clue how but it is now missing from the settings and will not connect to the network. This is on my tmo g3. Please help

Dial *#06#

Nothing

What have you done to the phone?

Most of the time there is a sticker under the battery.

Yeah but what do i use to get the imei back inside the phone instead of just the sticker

Will donate if somebody can help me figure this out..

Isn't this that efs backup stuff talked about in the PurpleDrake thread?
Sent from my LG-D851 using Tapatalk

As Skizzy034 noted you'll need to have performed an EFS backup. You can either flash the zips you made or use ADB to restore the partition.

Or call t mobile and tell em your phone does not work right and get replacement. You still never said what happened? What did you do right before issue happened?

I believe I saw a efs recovery method in the lg g2 forum but it looked like a long process and it might not even work for our phone. If I was you I would try to find it quick because normally anything that can potentially spoof imei numbers gets deleted when a moderator notices it.

I flashed ROM for wrong model

twolfekc said:
I flashed ROM for wrong model
Click to expand...
Click to collapse
Did you try restoring to stock? Did you backup your efs?

Mi|enko said:
Did you try restoring to stock? Did you backup your efs?
Click to expand...
Click to collapse
Yeah restored to stock and no i did not backup my efs I still have the box and sticker under the phone saying what the IMEI is tho.

twolfekc said:
Yeah restored to stock and no i did not backup my efs I still have the box and sticker under the phone saying what the IMEI is tho.
Click to expand...
Click to collapse
That's of no help unless somebody comes out with a method for restoring without a backup (I've seen it done with a couple devices). Until that happens, unfortunately there's not a lot you can do with the device.

Do a search for a member by the name Odia, I messed mine up before on another phone and He helped me restore withbout any backup. This was before I ever heard of efs
Sent from my LG-D851 using XDA Free mobile app

What about if your phone has the WRONG imei number after flashing a ROM? Does that matter? The phone still works.

I don't have any info on being able to help but this is a prime example of why you take the few extra steps and back up. Most of the time I'll admit, in fact I have never needed mine but on those rare occasions its literally a phone saver.

twolfekc said:
Yeah restored to stock and no i did not backup my efs I still have the box and sticker under the phone saying what the IMEI is tho.
Click to expand...
Click to collapse
Same happened to me! Did you fixed it or send it back for repair?

Editing the IMEI in any way is illegal and against our rules. The only allowed way is to have a backup. Anything else is not allowed here.
Also do not Suggest people send the device in to be repaired under warranty. This is Fraud and also not allowed.
Thread closed

Sim1 & sim2 imei

My friend zenfone 5 has same imei both has MOD Edit. IMIE shouldnt be posted in a public place. Bad things can happen if the wrong person were to get them.. Since he do fastboot erase factory and config. I try dd if mine to his phone but not work. Try debrick tool still got same imei. Anyone can help please. Thanks.

imei is related to hardware serial, not software, its the phone's id, theres nothing wrong with. also, you shouldnt give info like that on the web, as some could use it to reach their own "goals".

Haha you got same problem.I visited service they said motherboard needs to be replaced which will cost 8000 rs.And my Zenfone is not under warranty.LoL
You phone is now half dead forever , buy new phone.
Plz say thanks.

(AW.Poot)AkaS said:
Haha you got same problem.I visited service they said motherboard needs to be replaced which will cost 8000 rs.And my Zenfone is not under warranty.LoL
You phone is now half dead forever , buy new phone.
Plz say thanks.
Click to expand...
Click to collapse
You wrong, finally i can fix this imei number.
Sent from my ASUS_T00F using XDA-Developers mobile app

guidoido004 said:
imei is related to hardware serial, not software, its the phone's id, theres nothing wrong with. also, you shouldnt give info like that on the web, as some could use it to reach their own "goals".
Click to expand...
Click to collapse
I think you dont know about this kind of fake imei. Google it, many ppl got trouble on this imei that generate by false flash cutom rom.
But thanks for warn me.
Sent from my ASUS_T00F using XDA-Developers mobile app

paktepu said:
I think you dont know about this kind of fake imei. Google it, many ppl got trouble on this imei that generate by false flash cutom rom.
But thanks for warn me.
Sent from my ASUS_T00F using XDA-Developers mobile app
Click to expand...
Click to collapse
You think I am LoL . I flashed about 5+ ROMs .I used debrick tool, hard reseted .Also I Flashed Stock ROM , recovery fastboot ifiwi etc.And result IMEI 004999010640000.

(AW.Poot)AkaS said:
You think I am LoL . I flashed about 5+ ROMs .I used debrick tool, hard reseted .Also I Flashed Stock ROM , recovery fastboot ifiwi etc.And result IMEI 004999010640000.
Click to expand...
Click to collapse
You take the wrong mention bro. Its for a friend above you. Check it again.
As i said above, i can fix this fake imei to rhe original imei both.
Sent from my ASUS_T00F using XDA-Developers mobile app

paktepu said:
You take the wrong mention bro. Its for a friend above you. Check it again.
As i said above, i can fix this fake imei to rhe original imei both.
Sent from my ASUS_T00F using XDA-Developers mobile app
Click to expand...
Click to collapse
Sorry

Thread closed. Duplicate Question:
http://forum.xda-developers.com/zenfone-5/help/sim1-sim2-imei-004999010640000-t3385238