[Q] Question to Baseband / IMEI / EFS - Galaxy S III Q&A, Help & Troubleshooting

Hi there,
Quick question in advance:
Is it necessary to have a working baseband for restoring the IMEI?
It doesn’t seem to work when I try to restore just the efs-folder.
Baseband is unknown, as well as IMEI and everything else.
Detailed information:
yesterday I flashed a few days old nightly build of CM 10.1, when I was on a newer nightly build of 10.2.
Did this from inside the systeminformation under the settings tab in CM.
After rebooting it just looped and didn’t stop to do so.
I have CWM as a recovery solution and since I needed to flash a new rom anyway, I also tried to flash TWRP inside CWM.
Though it seemed to work, I still have CWM and not TWRP. Doesn’t matter, CWM is good, too.
Then I did a complete wipe and installed Paranoid Android. I noticed that I don’t have any signal.
So I did some digging and found, that my IMEI, baseband and almost anything related was unknown.
Since I have made a backup (.img) of my esf folder a year ago, I tried to restore it.
The restoration always says it’s complete, but I baseband, imei etc. is still unknown.
I tried various tools and manual restoration to no avail.
Of course I flashed CM again and had the same problem.
I am not at home so I cannot try to flash something with odin.
This might be the last chance to get it to work..
But then I thought, if it’s necessary to have a baseband working, in order to restore esf?
So do I need to install a modem first and then I will be able to restore esf?

AllTernative said:
Hi there,
Quick question in advance:
Is it necessary to have a working baseband for restoring the IMEI?
It doesn’t seem to work when I try to restore just the efs-folder.
Baseband is unknown, as well as IMEI and everything else.
Detailed information:
yesterday I flashed a few days old nightly build of CM 10.1, when I was on a newer nightly build of 10.2.
Did this from inside the systeminformation under the settings tab in CM.
After rebooting it just looped and didn’t stop to do so.
I have CWM as a recovery solution and since I needed to flash a new rom anyway, I also tried to flash TWRP inside CWM.
Though it seemed to work, I still have CWM and not TWRP. Doesn’t matter, CWM is good, too.
Then I did a complete wipe and installed Paranoid Android. I noticed that I don’t have any signal.
So I did some digging and found, that my IMEI, baseband and almost anything related was unknown.
Since I have made a backup (.img) of my esf folder a year ago, I tried to restore it.
The restoration always says it’s complete, but I baseband, imei etc. is still unknown.
I tried various tools and manual restoration to no avail.
Of course I flashed CM again and had the same problem.
I am not at home so I cannot try to flash something with odin.
This might be the last chance to get it to work..
But then I thought, if it’s necessary to have a baseband working, in order to restore esf?
Click to expand...
Click to collapse
There is a thread about this. Please follow the link to General > Sticky roll-up in my signature. Then read the IMEI / EFS - know this stuff - thread.

Thanks for your answer, but I already read this and it does not help with my question.
I tried 3 of the 4 efs-restoration tools you're mentioning there.
But I never have baseband or imei. It just stays unknown.
Or am I missing something crucial here?

AllTernative said:
Thanks for your answer, but I already read this and it does not help with my question.
I tried 3 of the 4 efs-restoration tools you're mentioning there.
But I never have baseband or imei. It just stays unknown.
Or am I missing something crucial here?
Click to expand...
Click to collapse
You can't have tried everything in the thread. Step 3 "send for repair".. Did you do that?
People tend to assume that I left out other things to try between step 2 and step 3,. Not sure why people think I would do that. I didn't.

No, of course not. As I wrote in the OP, I didn't even try to flash through Odin.
So I am still at step 1 - which I would most likely have working.
Thats why my question came in.
I couldn't get the information from your thread, so can you probably help me out here?
Do I need to have a working baseband to recover the /efs or IMEI?
Because I can try step 2 (odin) only in a few hours when I get home, I'm trying to find another solution in the meantime.
//edit:
I forgot to mention that by restoring the efs folder I actually get a filled efs folder in my root directory as it's supposed to be.
It just doesn't work, despite it's there...

You fail to say if you've ever flashed an EMG based rom, which is the cause of most imei issues at the moment.
If you have then flash an official EMG stock rom with odin, factory reset and see if imei is then valid. If not then restore the efs, check the file permissions and factory reset again.

I'm sorry, are you talking about the MG4 issue changing the EFS folder?
I guess I never installed that.
Just a rooted stock rom almost a year ago.
Then I installed a nightly build of CM 10.1 in april (I guess) and recently a CM 10.2 nightly build.
When I went back to CM 10.1 I stuck at boot loop and installed Paranoid Android 3.65.
Sadly I don't know if any of those include this EMG, but I guess not.

Read the return to stock for warranty guide and take phone to a service centre

There's no need to take it to a service center.
I resolved the issue the moment I got home.
As I wrote in my first post, I wondered if I needed a baseband to restore the IMEI.
Turns out I was right.
I downloaded "Perka's File Stash" over WLAN from the play store.
With this tool I got a modem file for my baseband.
(I have chosen XXDLIB from the CM Modem files, since I am on CM currently and the XXDLIB should be reliable, from what I read).
Downloaded the file as .zip, went into CWM and installed the .zip.
Everything works again. I didn't even have to restore the efs again.
Apparently the baseband was needed so it could find the efs folder, or something like that.
Anyway, maybe it's of use to someone with the same problem, cheers!

Related

S2 IMEI Unkown + No Service PLEASE HELP

Hi all,
I own a galaxy s2. I'm facing a issue which i've been trying to fix for the past couple of weeks. I tried many threads in this forum, but nothing seems to solve the issue.
This is the issue,
I used to flash custom roms on my device. I used many custom roms including cm9 RC1 and when samsung released the lastest 4.0.4 update i just wanted to chek it out. so I downloaded the generic russian (SER) firmware and flashed it using odin.
After flashing it I was stuck @ boot. i was stuck there for more than 10 mins, so I ended up removing the battery. then I went to samsung recovery(Volume Up+Power+Home) and cleared the cache and user data and rebooted the phone it worked fine. At this time I didn't bother to check whether my IMEI was there but everything worked fine.
After couple of days(without rebooting the device in that time) I droped the phone. battery came off, when I turned on the device again, prohibited mark like thing came in the status bar and there was no service, when I checked the IMEI it was not there.
At this moment I was not sure whether the drop caused the issue or the flashing caused it. I later realized IMEI issue comes because of EFS but sadly I didnt back it up. After diggin for few days I found when flashing one of the custom roms, efs was backed up automatically, I tried restoring it, but it didnt help (Maybe the backup was corrupted )
I followed various threads in this forum but nothing helped me.
Please help me get the IMEI back, I really miss my device :crying:
Shasinda said:
Hi all,
I own a galaxy s2. I'm facing a issue which i've been trying to fix for the past couple of weeks. I tried many threads in this forum, but nothing seems to solve the issue.
This is the issue,
I used to flash custom roms on my device. I used many custom roms including cm9 RC1 and when samsung released the lastest 4.0.4 update i just wanted to chek it out. so I downloaded the generic russian (SER) firmware and flashed it using odin.
After flashing it I was stuck @ boot. i was stuck there for more than 10 mins, so I ended up removing the battery. then I went to samsung recovery(Volume Up+Power+Home) and cleared the cache and user data and rebooted the phone it worked fine. At this time I didn't bother to check whether my IMEI was there but everything worked fine.
After couple of days(without rebooting the device in that time) I droped the phone. battery came off, when I turned on the device again, prohibited mark like thing came in the status bar and there was no service, when I checked the IMEI it was not there.
At this moment I was not sure whether the drop caused the issue or the flashing caused it. I later realized IMEI issue comes because of EFS but sadly I didnt back it up. After diggin for few days I found when flashing one of the custom roms, efs was backed up automatically, I tried restoring it, but it didnt help (Maybe the backup was corrupted )
I followed various threads in this forum but nothing helped me.
Please help me get the IMEI back, I really miss my device :crying:
Click to expand...
Click to collapse
hi there
you said that you have the backup of your EFS Folder, what you need to do is follow the steps in this thread
http://forum.xda-developers.com/showthread.php?t=1264021
its recover your imei in nine steps
my imei was lost as well and i recovered my imei following those stesp, its a great guide if you already have the backup of your EFS Folder
cheers
fr3nlysmil3 said:
hi there
you said that you have the backup of your EFS Folder, what you need to do is follow the steps in this thread
http://forum.xda-developers.com/showthread.php?t=1264021
its recover your imei in nine steps
my imei was lost as well and i recovered my imei following those stesp, its a great guide if you already have the backup of your EFS Folder
cheers
Click to expand...
Click to collapse
I tried this also, but it didnt solve my issue :crying:
...
I once had a similar problem.
My imei went lost because of a rom upgrade and I DIDN'T have a backup..
I solved the problem by flashing a stock rom (any samsung stock rom will do) with ODIN.
I am not sure what happened, but it looked like that the nv_data folder was "re-generated" and I got my IMEI back.
Now I have a copy of the folder in every storage media around my house
MistahBungle said:
If you have a backup, then you should be able to recover it. There are tons of threads on here with instructions on how to restore an EFS backup. Search (if you want it fixed, that is. If you don't want it fixed, keep posting to this thread in the hope someone spoonfeeds you. Might be waiting a while tho).
Click to expand...
Click to collapse
I tried almost every thread here in xda about restoring, tried GSII_repair, kTool to restore it but none of them recovered the IMEI. I did not made a backup of efs but when I installed the Hydra H2O ICS Rom for GS2 it made the backup i guess, because a file called "efs-backup.tar.gz" was in a folder called .hydra inside the sd card.
does the drop of the device has anything to do with the erased IMEI?
robdpi said:
I once had a similar problem.
My imei went lost because of a rom upgrade and I DIDN'T have a backup..
I solved the problem by flashing a stock rom (any samsung stock rom will do) with ODIN.
I am not sure what happened, but it looked like that the nv_data folder was "re-generated" and I got my IMEI back.
Now I have a copy of the folder in every storage media around my house
Click to expand...
Click to collapse
I have installed stock roms from samsung using Odin, but then I discovered that efs folder get unmounted everytime I install the stock rom, phone just starts after flashing without android setup wizard, also when I long press power button, menu wont appear, device just shut down, after I restore the efs from the backup i have, and mount the efs using the CWM recovery would bring back the power button long press menu. everything else working except for Mobile Networks. and imei/baseband shows unknown
Drop Caused this problem
Hi all,
Thank you for replying on this thread and helped me figured out my problem, I have contacted Odia and he thinks that dropping the phone damaged the baseband chip inside the main board, not a flashing of the roms or efs folder issue. i have only 2 options either replace the whole board paying LKR 35,000 (New s2 costs only LKR 65,000) or use it as a MP3 player :crying:

[Q] Problem: IMEI number, serial number, baseband, etc. unknown

Hello!
I have a samsung galaxy SII that has lost all network connection (wifi works though). It's just a check of the pillars and cant either call or text.
When you go in and check Baseband it says unknown. Similarly, IMEI, serial number and all network related stuff.
I have searched and found EFS Pro but it did not work following the wizard.
Is there anyone out there who can help me get my phone working again?
Would appreciate any help very much!
Im running CM9 stable by the way.
Restore your EFS backup. No EFS backup (Gee, that would be a shock. Everyone does those ) either service centre & explain what you've been doing with the phone (and hand over the contents of your wallet to have it repaired), or if you contact Odia by PM (and wait patiently for a reply, do not hound him) he might be able to recover it for you.
Have you tried to reflash baseband through Odin?
KUMAz said:
Hello!
I have a samsung galaxy SII that has lost all network connection (wifi works though). It's just a check of the pillars and cant either call or text.
When you go in and check Baseband it says unknown. Similarly, IMEI, serial number and all network related stuff.
I have searched and found EFS Pro but it did not work following the wizard.
Is there anyone out there who can help me get my phone working again?
Would appreciate any help very much!
Im running CM9 stable by the way.
Click to expand...
Click to collapse
Please answer these questions:
1. Did your problem occur after flashing in CWM recovery with your phone charging?
1. Do you have a good /efs backup?
2. Have you ever flashed Siyah kernel before?
3. Post screenshots of Settings>About phone, and Settings>About phone>Status on your phone.
thanks
przemcio510 said:
Have you tried to reflash baseband through Odin?
Click to expand...
Click to collapse
No I have not tried it yet, you do not have a good guide on how to do it?
Thanks for reply!
Jokesy said:
Please answer these questions:
1. Did your problem occur after flashing in CWM recovery with your phone charging?
1. Do you have a good /efs backup?
2. Have you ever flashed Siyah kernel before?
3. Post screenshots of Settings>About phone, and Settings>About phone>Status on your phone.
thanks
Click to expand...
Click to collapse
1. I do not know, I got the phone from a friend who had the same problem with it. He ran the phone stock. So I flashed the CM9.1 and after it worked it in about a week and then it stopped working again simply. He bought the phone used so do not know what is done with it before. However, I had the charger when I tried to flash it yesterday, it is something that you should not do?
2. I tried some kind of stock EFS I found, but did not get better for it. Then if you go into the EFS folder in your phone, there are. .bak files are dated 2011 which might be ok?
3.I got it as soon as I get access to the phone.
Thanks for reply!
KUMAz said:
1. I do not know, I got the phone from a friend who had the same problem with it. He ran the phone stock. So I flashed the CM9.1 and after it worked it in about a week and then it stopped working again simply. He bought the phone used so do not know what is done with it before. However, I had the charger when I tried to flash it yesterday, it is something that you should not do?
2. I tried some kind of stock EFS I found, but did not get better for it. Then if you go into the EFS folder in your phone, there are. .bak files are dated 2011 which might be ok?
3.I got it as soon as I get access to the phone.
Thanks for reply!
Click to expand...
Click to collapse
1. Yes, it has something to do with it. Don't flash in CWM recovery when connected to charger. It's a known bug.
2. I meant do you have a real backup of your /efs .tar or .rar? Check your internal and external SD for anything efs
3. Ok
i have the same problem and have a backup of efs ...it has 5 folders efs,efs-163,198,200,490..i dunno wat to do please help me with this problem thank u
IMEI lost when copying nandroid backup from old phone to new
Beware.
After receiving a new Nexus 5 to replace my cracked but still working one I immediately rooted/unlocked it and then copied my old N5 backup to it. Used WugFresh Tool Kit 1.8.4 to root and TWRP to recover and both phones were at Android 4.4.4 so what could go wrong? (I thought) Somewhere along the way the new N5's IMEI number was lost (=0) and so no service. Tried factory reset and recopying but no luck.
I factory restored the phone and returned it to Google. I expect some penalty for my antics. I will get delivery on another N5 today and will refrain from tinkering for awhile. Fun.
Correction to above: The newest Nexus 5 received today came with Android 4.4.2 not 4.4.4 as I assumed (and perhaps incorrectly) for the new N5 described above. This could have been the deal breaker, copying a 4.4.4 system over a 4.4.2 one, that screwed the IMEI (?).

Weird no registered network error

Hi all. I rooted my phone couple of weeks ago and I didn't like the rom that I flashed and I decided the unroot my phone. So today I tried to unroot my phone and applied triangle away solution. Everything went perfect. I flashed a stock rom, I unrooted my phone successfully. Since this I have no connection at all. No 2g, no 3g. I've done some research on the Internet but couldn't find a proper answer. The phone shows the imei number but it doesn't match with the number under the battery. What should I do?
Marashlim said:
Hi all. I rooted my phone couple of weeks ago and I didn't like the rom that I flashed and I decided the unroot my phone. So today I tried to unroot my phone and applied triangle away solution. Everything went perfect. I flashed a stock rom, I unrooted my phone successfully. Since this I have no connection at all. No 2g, no 3g. I've done some research on the Internet but couldn't find a proper answer. The phone shows the imei number but it doesn't match with the number under the battery. What should I do?
Click to expand...
Click to collapse
go through this post and find a solution:
http://forum.xda-developers.com/showthread.php?t=2344125
Marashlim said:
Hi all. I rooted my phone couple of weeks ago and I didn't like the rom that I flashed and I decided the unroot my phone. So today I tried to unroot my phone and applied triangle away solution. Everything went perfect. I flashed a stock rom, I unrooted my phone successfully. Since this I have no connection at all. No 2g, no 3g. I've done some research on the Internet but couldn't find a proper answer. The phone shows the imei number but it doesn't match with the number under the battery. What should I do?
Click to expand...
Click to collapse
As per the faqs and guides restore your backed up EFS folder .
Not read the basics and no EFS backup then its a paid for service repair.
jje
I have no efs back up. I rooted my other phone million times but I've never backed it up. So jje you basically mean there is no exact solution for the issue. I need to send my phone to the service?
If you flashed a custom rom it may have a EFS backup look for EFSbackup.tar on your phone .
Looked for it but there is nothing. I've sent a PM one of the XDA users who is an expert with IMEI. I'm waiting for his answer. If he can't fix it I'll visit a Samsung repair centre. The phone is now out of warranty, isn't it? How much they are gonna charge me roughly?
did you try to flash an emg2 or emg4 baseband? some have reported that this can restore network connection
ashraf sharif said:
did you try to flash an emg2 or emg4 baseband? some have reported that this can restore network connection
Click to expand...
Click to collapse
You are amazing mate. Your suggestion fixed the problem. I now have 2G, 3G connection on my phone. Thank you so much.
make sure that going forward if you flash any other baseband or rom that includes a baseband as all stock roms do and also some custom roms as well, that you flash one that is newer than what you have now. the older basebands can no longer read the efs folder because beginning with emg4 the efs folder is modified so older radios will not work properly. back up your efs folder because it may get corrupted. if that happens than only a backup can restore your network connection, this time you got lucky it was not corrupted yet. the format changed but the info was intact. please read the stickies all the answers are there.
ashraf sharif said:
make sure that going forward if you flash any other baseband or rom that includes a baseband as all stock roms do and also some custom roms as well, that you flash one that is newer than what you have now. the older basebands can no longer read the efs folder because beginning with emg4 the efs folder is modified so older radios will not work properly. back up your efs folder because it may get corrupted. if that happens than only a backup can restore your network connection, this time you got lucky it was not corrupted yet. the format changed but the info was intact. please read the stickies all the answers are there.
Click to expand...
Click to collapse
Dear Ashraf sharif,
My sgs3 gt i9300 currently has baseband version I9300 DDEMG2 and bulid number JZ054K.I9300XXEMG5.
I had flashed resurrection remix rom and i got my IMEI changed and baseband version unknown then i restored everything back with a lot of help form rootsu,now my issues are:-
which all baseband i can flash or which roms are suited for this ie what should i look for in a rom while flashing as far as baseband and not ****ing up my imei is concerned?
and does that means in addition to flashing a custom rom i need to flash a baseband also as you mentioned that few custom roms have baseband ie all doesn't have basebands???
thanks in advance.......
I am no expert on this issue as I have not experienced it myself. With that being said , it is my understanding that once a g series modem or baseband is used reverting to an older baseband will result in no network. Read the thread in general called " attention 19300xxemg4 changes efs folder". some firmwares do not touch the baseband only affecting system+ kernel+ recovery.
Since you are on mg2 baseband it is probably safest for you to stick with it because it works . If you do decide to change it make sure you flash a baseband that is either the same or newer. Also make sure csc code is correct for your region.
Make several backups of your efs and save to external sd and computer and flashdrive. Read the stickies .
wait and see before flashing . Read reviews for newly released firmwares. This is how I avoided this relatively new issue with efs imei . I simply read the thread "attention 1900xxemg4 changes efs folder.

[Q] S5830i strange rom flash imei issue -Need kind assistance!

Hello.
I really didn't want to make a thread but i've been bouncing of dead lnks and failed search results or outdated incorrect info all day and i can't seem to get the information i need. I'm sorry if i haven't done everything i can before this psot but i have rtied, i really have!
My issue:
I have a Samsung Galaxy Ace GT-S5830i which was running so slow it was terrible. I found a nice slimline rom that i read about and was happy to use.
I used Samsung recovery to then run CWM ClockWorkRec5830i, which i used to install 'update' which gave me Superuser access and rooted my phone (i think, if i understand) then i made a backup of my phones stock image, then i used it to wipe the phone, clear cache, and finally install my new rom.
...so far so good.
The rom installed, the phone rebooted, everything was working (really fast and really well, i was VERY pleased) however i have hit my issue:
IMEI data was gone. *#06# showed nothing, so i went back into Samsung recovery, loaded ClockWorkRec5830i and restored my phone back ro original using my backup. The IMEI returned! All was well again, so i got Galaxy Toolbox from Play store, ran it with Superuser access and created a backup of the EFS file.
I returned my phone back to the new rom that i had chosen and again installed Galaxy Toolbox to use the 'restore EFS' option.
The IMEI is still blank using *#06# which has me very confused.
I can open the EFS backup file in Hex workshop and the serial number data is is there. I can use Galaxy Toolkit device info and see the IMEI in there, so i don't understand what i have done wrong for the IMEI not to be showing in the phone.
Can anyone help or educate me please. I do generally want to learn more about why i haven't realised the mistake may.
I love learning this stuff but it can be overwelming sometimes until someone comes along and calls you an idiot and tells you the obvious lol! Please, "I'm an idiot" hehee.
Thankyou
Drew (United Kingdom)
DrewKrew said:
Hello.
I really didn't want to make a thread but i've been bouncing of dead lnks and failed search results or outdated incorrect info all day and i can't seem to get the information i need. I'm sorry if i haven't done everything i can before this psot but i have rtied, i really have!
My issue:
I have a Samsung Galaxy Ace GT-S5830i which was running so slow it was terrible. I found a nice slimline rom that i read about and was happy to use.
I used Samsung recovery to then run CWM ClockWorkRec5830i, which i used to install 'update' which gave me Superuser access and rooted my phone (i think, if i understand) then i made a backup of my phones stock image, then i used it to wipe the phone, clear cache, and finally install my new rom.
...so far so good.
The rom installed, the phone rebooted, everything was working (really fast and really well, i was VERY pleased) however i have hit my issue:
IMEI data was gone. *#06# showed nothing, so i went back into Samsung recovery, loaded ClockWorkRec5830i and restored my phone back ro original using my backup. The IMEI returned! All was well again, so i got Galaxy Toolbox from Play store, ran it with Superuser access and created a backup of the EFS file.
I returned my phone back to the new rom that i had chosen and again installed Galaxy Toolbox to use the 'restore EFS' option.
The IMEI is still blank using *#06# which has me very confused.
I can open the EFS backup file in Hex workshop and the serial number data is is there. I can use Galaxy Toolkit device info and see the IMEI in there, so i don't understand what i have done wrong for the IMEI not to be showing in the phone.
I love learning this stuff but it can be overwelming sometimes until someone comes along and calls you an idiot and tells you the obvious lol! Please, "I'm an idiot" hehee.
Thankyou
Drew (United Kingdom)
Click to expand...
Click to collapse
Don't consider yourself idiot at all lol. You have explained everything so clearly.
Well,
This problem is so much common with this phone. Don't know why !
Many people including me facing this problem.
Sometimes you just reboot your phone and you will see ur IMEI is gone. Reboot again and its back. -_-
Its really strange issue actually.
You already knew all methods to get IMEI back. This is comman issue with this phone. Suffer it.
Maybe @iamareebjamal have figured this prob out.
Sent from my GT-S5830i using Tapatalk 2
The rom i found was great. It performed so much faster, did not take up much of the very limited memory on the handset, it was the perfect solution to my needs but whenever i use it i cannot make any calls etc due to no IMEI (*#06# shows a complete blank box) and i have tried rebooting the phone so so many times, repeating the process of installing the rom again and again and not once can i ever get it to show IMEI in *#06#. I could understand if the EFS backup also showed that the imei had reset or become corrupt, but it looks fine in Hex Workshop, shows up in device info on Galaxy Toolbox app, i just can't conclude anything from it's behaviour.
Using my original phone's backup the IMEI is restored instantly, and i have taken the EFS backup whilst running the phone on it's original state.
Could it be because something is not right in the rom? Is the rom changing something that i could possibly correct myself? Or something in the rom not suitable for my model and version of the GT-S5830i handset (compatibility issue)?
I really want to be able to use this rom and other's seem to be able to use it without issue which just makes me more determined to find the cause and correct my issue. I also see that many people do lose their IMEI and the EFS backup/restore method seems to work perfectly for them, because they seem to have their IMEI turned to blank values when checking in HexWorkshop whereas mine is still showing as expected.
I cannot make sense of this scenario at all lol.
I appreciate ANY and ALL advice
The rom is was trying was MEHDI ROM v2. I am in the United Kingdom using a GT-S5830i on o2 newtwork with no network locks or restrictions.
Make a new backup of your IMEI(make sure it is lost by once or twice rebooting) . And open via Hex Workshop.
If you see your IMEI in there, then reflash stock ROM and flash this Custom ROM without wiping anything.
If it doesn't solve your issue now too
Try restoring the efs partition before Media Scanning starts and Reboot the phone after media scanning is started.
These all are hit and trial methods. I've myself never found a fully satisfying solution
If nothing works, you'll have to try any other ROM.
DrewKrew said:
Hello.
I really didn't want to make a thread but i've been bouncing of dead lnks and failed search results or outdated incorrect info all day and i can't seem to get the information i need. I'm sorry if i haven't done everything i can before this psot but i have rtied, i really have!
My issue:
I have a Samsung Galaxy Ace GT-S5830i which was running so slow it was terrible. I found a nice slimline rom that i read about and was happy to use.
I used Samsung recovery to then run CWM ClockWorkRec5830i, which i used to install 'update' which gave me Superuser access and rooted my phone (i think, if i understand) then i made a backup of my phones stock image, then i used it to wipe the phone, clear cache, and finally install my new rom.
...so far so good.
The rom installed, the phone rebooted, everything was working (really fast and really well, i was VERY pleased) however i have hit my issue:
IMEI data was gone. *#06# showed nothing, so i went back into Samsung recovery, loaded ClockWorkRec5830i and restored my phone back ro original using my backup. The IMEI returned! All was well again, so i got Galaxy Toolbox from Play store, ran it with Superuser access and created a backup of the EFS file.
I returned my phone back to the new rom that i had chosen and again installed Galaxy Toolbox to use the 'restore EFS' option.
The IMEI is still blank using *#06# which has me very confused.
I can open the EFS backup file in Hex workshop and the serial number data is is there. I can use Galaxy Toolkit device info and see the IMEI in there, so i don't understand what i have done wrong for the IMEI not to be showing in the phone.
Can anyone help or educate me please. I do generally want to learn more about why i haven't realised the mistake may.
I love learning this stuff but it can be overwelming sometimes until someone comes along and calls you an idiot and tells you the obvious lol! Please, "I'm an idiot" hehee.
Thankyou
Drew (United Kingdom)
Click to expand...
Click to collapse
May these help you..
As about these issue i do flash a Custom Kernel after flashing Rom with no IMEI Number
So After Flashing any Custom Kernel my IMEI Gets back
You can try it with any kernel
I use to flash Rafael.Baugis Kernel flash both its Modules and E3Boot.img
may be try changing kernel..
try any custom kernel...it helps me every time..
i have wiered problem, i can't use custom kernel on stock rom...or stock kernel on custom rom, both of these combination makes my imei disappear every time.
go to this thread for all the explanation
DrewKrew said:
Hello.
I really didn't want to make a thread but i've been bouncing of dead lnks and failed search results or outdated incorrect info all day and i can't seem to get the information i need. I'm sorry if i haven't done everything i can before this psot but i have rtied, i really have!
My issue:
I have a Samsung Galaxy Ace GT-S5830i which was running so slow it was terrible. I found a nice slimline rom that i read about and was happy to use.
I used Samsung recovery to then run CWM ClockWorkRec5830i, which i used to install 'update' which gave me Superuser access and rooted my phone (i think, if i understand) then i made a backup of my phones stock image, then i used it to wipe the phone, clear cache, and finally install my new rom.
...so far so good.
The rom installed, the phone rebooted, everything was working (really fast and really well, i was VERY pleased) however i have hit my issue:
IMEI data was gone. *#06# showed nothing, so i went back into Samsung recovery, loaded ClockWorkRec5830i and restored my phone back ro original using my backup. The IMEI returned! All was well again, so i got Galaxy Toolbox from Play store, ran it with Superuser access and created a backup of the EFS file.
I returned my phone back to the new rom that i had chosen and again installed Galaxy Toolbox to use the 'restore EFS' option.
The IMEI is still blank using *#06# which has me very confused.
I can open the EFS backup file in Hex workshop and the serial number data is is there. I can use Galaxy Toolkit device info and see the IMEI in there, so i don't understand what i have done wrong for the IMEI not to be showing in the phone.
Can anyone help or educate me please. I do generally want to learn more about why i haven't realised the mistake may.
I love learning this stuff but it can be overwelming sometimes until someone comes along and calls you an idiot and tells you the obvious lol! Please, "I'm an idiot" hehee.
Thankyou
Drew (United Kingdom)
Click to expand...
Click to collapse
Hey, did you solved your problem? i had the same problem once and it was just that the backup made with galaxytoolbox didn't match. So the best solution is to do a backup again and you will have to open the new file and edit it with the HEX editor and input your imei number manually. Here the thread with the info http://forum.xda-developers.com/showthread.php?t=2064034&page=1 and this video is great, but it's in spanish. http://www.youtube.com/watch?v=1kbY0EZYsXE Hope this solves your problem.
I cannot use the galaxy toolbox for my restoring unfortunately as the galaxy toolbox is not working with my current rom, if you know of another program that can help me fix it, i would appreciate it.
Thanks,
Fab
fabiolaec said:
Hey, did you solved your problem? i had the same problem once and it was just that the backup made with galaxytoolbox didn't match. So the best solution is to do a backup again and you will have to open the new file and edit it with the HEX editor and input your imei number manually. Here the thread with the info http://forum.xda-developers.com/showthread.php?t=2064034&page=1 and this video is great, but it's in spanish. http://www.youtube.com/watch?v=1kbY0EZYsXE Hope this solves your problem.
Fab
Click to expand...
Click to collapse
Thanks for the replies, but unfortunately i have not yet resolved the problem.
I have gone over the process again and again, repeating it the same way, trying slightly different ways, the outcome is always the same. Everytime i try i take a EFS backup (taken while the phone is restored to running on it's original stock rom and setup, with the IMEI all working and displaying via *#06#) the EFS file shows the IMEI in Hex Editor. Everytime. It's always there.
Then, as soon as i flash a rom and reboot the phone i have no IMEI. I use the good EFS backup and restore the EFS to the phone (which has the IMEI data intact) but the phone still will not display the IMEI via *#06# and if i check the EFS again it is still showing the IMEI as being in the EFS backup and still good.
So i have no idea why the phone is not seeing the IMEI because apparently it IS still there!
I'm installing roms by using the recovery method to 'apply update', using Samsung basic recovery mode, but could i use the CWM recovery to install? Would that have a different effect? Is it safe to use CWM to install roms as the guide i read said to only install roms using Samsung restore as CWM adds a risk of crashing or bricking the phone?
So many people are able to successfully flash a GT-S5830i and i just do not know enough yet about phone roms to feel confident to do more daring things with different methods for fear of making a critical mistake. So much of the information i have read contradicts itself, and other information neglects to explain certain things or simply assumes you know about bootloaders, CSC files and the like...
I've modified so many gadgets before and am fairly confident with doing such things it's just i can't seem to educate myself correctly over the modifying of these Samsung Android phones.
I just bought a Samsung Galaxy S GT-i9000 today and wanted to remove some of the bloatware so that's my next phone to read up on.
I have been put off a bit because of the issue of losing IMEI. It seems to be a big risk with this model, do other Samsung models have issues with IMEI loss?
Thankyou to all who are taking time to post. I read and appreciate every post, and am enjoying learning about this new topic to me.
Perhaps i shouls restore back to my original working setup, then install the rom using recovery (or via CWM recovery - i have no idea which is safest and the correct method as i read conflicting information) then install the rom without resetting/wiping anything? Would that help?
When i select roms should i be making sure they contain a compatible baseband or something?
I don't understand this area.
DrewKrew said:
Perhaps i shouls restore back to my original working setup, then install the rom using recovery (or via CWM recovery - i have no idea which is safest and the correct method as i read conflicting information) then install the rom without resetting/wiping anything? Would that help?
When i select roms should i be making sure they contain a compatible baseband or something?
I don't understand this area.
Click to expand...
Click to collapse
About recovery use CWM
If you do not wipe then there will some problem occur may be like the phone will not boot after flashing Rom so must do wipe
And about baseband and all don't worry you can use any stock Rom for flashing Roms.
DrewKrew said:
Thanks for the replies, but unfortunately i have not yet resolved the problem.
I have gone over the process again and again, repeating it the same way, trying slightly different ways, the outcome is always the same. Everytime i try i take a EFS backup (taken while the phone is restored to running on it's original stock rom and setup, with the IMEI all working and displaying via *#06#) the EFS file shows the IMEI in Hex Editor. Everytime. It's always there.
Then, as soon as i flash a rom and reboot the phone i have no IMEI. I use the good EFS backup and restore the EFS to the phone (which has the IMEI data intact) but the phone still will not display the IMEI via *#06# and if i check the EFS again it is still showing the IMEI as being in the EFS backup and still good.
So i have no idea why the phone is not seeing the IMEI because apparently it IS still there!
I'm installing roms by using the recovery method to 'apply update', using Samsung basic recovery mode, but could i use the CWM recovery to install? Would that have a different effect? Is it safe to use CWM to install roms as the guide i read said to only install roms using Samsung restore as CWM adds a risk of crashing or bricking the phone?
So many people are able to successfully flash a GT-S5830i and i just do not know enough yet about phone roms to feel confident to do more daring things with different methods for fear of making a critical mistake. So much of the information i have read contradicts itself, and other information neglects to explain certain things or simply assumes you know about bootloaders, CSC files and the like...
I've modified so many gadgets before and am fairly confident with doing such things it's just i can't seem to educate myself correctly over the modifying of these Samsung Android phones.
I just bought a Samsung Galaxy S GT-i9000 today and wanted to remove some of the bloatware so that's my next phone to read up on.
I have been put off a bit because of the issue of losing IMEI. It seems to be a big risk with this model, do other Samsung models have issues with IMEI loss?
Thankyou to all who are taking time to post. I read and appreciate every post, and am enjoying learning about this new topic to me.
Click to expand...
Click to collapse
I'm not sure if you missed this step.
I did efs backup on stock rom and tried to restore with galaxy toolbox on the new rom and IT DIDN'T WORK....
you have to copy your imei number manually (or directly from the sticker) and once you are in the NEW ROM, make a backup of the IMEI. of course if you open it with the hex editor it will be EMPTY.
Then in this new back up file newly created you have to manually input your IMEI number using the HEX EDITOR.
This should work.
Rgds,
Fab
Backup imei of gts5830i
Hi i have just rooted my glaxay ace gts5830i &
want to install custom rom bt i want to first
backup its IMEI bt i don't know much abut
it ....
i heard glaxay toolbox in playstore backup the
IMEI bt in some cases it might no able to
backup ...is there any other way plz tell me i
also tried EFS pro...bt not able to backup bcuz
it didn't show my model name even on
refresh... plz help me to backup its imei...
sahil chandel said:
Hi i have just rooted my glaxay ace gts5830i &
want to install custom rom bt i want to first
backup its IMEI bt i don't know much abut
it ....
i heard glaxay toolbox in playstore backup the
IMEI bt in some cases it might no able to
backup ...is there any other way plz tell me i
also tried EFS pro...bt not able to backup bcuz
it didn't show my model name even on
refresh... plz help me to backup its imei...
Click to expand...
Click to collapse
Don't ask the same question in two different threads.
Galaxy toolbox works almost every time.
Did anyone having a similar issue manage to resolve it or can suggest other steps to follow?
I am having the exact issue but for the life of me can not make the IMEI appear even though galaxy toolbox reports it is fine. Here is my post from another thread, before I found this one.
Flashed ROM, all working fine except as above, no network connection (mobile connection). Wifi, etc all working. IMEI is blank when I do *#06#
Have tried
1. reboots, sim out, reboots, etc
2. tried using galaxy toolbox to backup imei/efs and then restoring after flash. nope no help.
3. tried backing up imei and editing with hex editor but the image already has correct imei. galaxy tool box does report correct imei.
4. just tried flashing rafel kernal using instructions but after doing so, phone does not boot past samsung screen.
5. reflashed back to stock room and crap radio still not working lol
so any suggestions? i need a kernel and then one that works with this rom.
Click to expand...
Click to collapse
Since the above, tried thunderbird kernal and I am still without IMEI.
I would just like to ask. Is it possible, at some point I have deleted EFS partition? Should I be able to see this EFS partition somewhere? Browsing through PC, on SD card or through CW recovery?
My only idea is that I have deleted efs partition so galaxy toolbox has no where to restore to BUT the app itself reports correct IMEI as does the hex value with a backup file.
Ideas, rants and possible suggestions welcome!
Thanks
cyrax.net said:
Did anyone having a similar issue manage to resolve it or can suggest other steps to follow?
I am having the exact issue but for the life of me can not make the IMEI appear even though galaxy toolbox reports it is fine. Here is my post from another thread, before I found this one.
Since the above, tried thunderbird kernal and I am still without IMEI.
I would just like to ask. Is it possible, at some point I have deleted EFS partition? Should I be able to see this EFS partition somewhere? Browsing through PC, on SD card or through CW recovery?
My only idea is that I have deleted efs partition so galaxy toolbox has no where to restore to BUT the app itself reports correct IMEI as does the hex value with a backup file.
Ideas, rants and possible suggestions welcome!
Thanks
Click to expand...
Click to collapse
Follow my restoring guide check my sign.
Hitesh2626 said:
Follow my restoring guide check my sign.
Click to expand...
Click to collapse
Thanks Hitesh but I beleive I have tried all the methods. Check my reply here...
I solved my issue by flashing kernel again...see...
my post

[Q] Cannot restore efs files on i9300, i restored efs on ktool but nothing changed?

Hello xda I am at my wits end over this.
Basically I got sick of stock roms and wanted my phone to be faster so I decided to install cyanogenmod, that was grand. Phone could still send texts and call people. Then I wanted to change to miui, I backed up my efs files with efspro like the step by step guide said and done everything correctly. Once I finished, my efs folder got corrupted because I had the 0049 imei.
Nothing is showing up in efsprofessional for restore. I downloaded a stock 4.3 rom for my phone, it restored my imei code but I didnt have it unlocked. I backed up efs again, flashed to 4.1.1 but I still couldn't restore efs. I downloaded ktool and other programs, it says I restored efs but when I reboot the phone, it doesn't seem to work.
I don't know what to do. I have the backups but it seems like nothing is working. Are older versions of efsprofessional less temperamental? Is there any stock roms that would work better? Any help?
If there is any questions, please ask away. Thank you
suckylemon said:
Hello xda I am at my wits end over this.
Basically I got sick of stock roms and wanted my phone to be faster so I decided to install cyanogenmod, that was grand. Phone could still send texts and call people. Then I wanted to change to miui, I backed up my efs files with efspro like the step by step guide said and done everything correctly. Once I finished, my efs folder got corrupted because I had the 0049 imei.
Nothing is showing up in efsprofessional for restore. I downloaded a stock 4.3 rom for my phone, it restored my imei code but I didnt have it unlocked. I backed up efs again, flashed to 4.1.1 but I still couldn't restore efs. I downloaded ktool and other programs, it says I restored efs but when I reboot the phone, it doesn't seem to work.
I don't know what to do. I have the backups but it seems like nothing is working. Are older versions of efsprofessional less temperamental? Is there any stock roms that would work better? Any help?
If there is any questions, please ask away. Thank you
Click to expand...
Click to collapse
Try this patched modem and kernel
Use PhilZ recovery choose wipe to install a new rom in settings then
1.Flash this ROM v5.2; http://echoerom.com/galaxy-s3-gt-i9300/
2.Flash patched kernel mk6; from here https://drive.google.com/folderview...sharing&tid=0B6MIUd7HJudAbU5YaGkzOUowMG8#list
3.Flash patched modem mk6; from here https://drive.google.com/folderview...sharing&tid=0B6MIUd7HJudAbU5YaGkzOUowMG8#list
4.Reboot.
5 Factory reset if bootloop

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