[Q] IMEI is missing after being unlocked - Galaxy Ace S5830 Q&A, Help & Troubleshooting

Hi All,
I need Help/Advice
My brother bought his lad a Galaxy Ace S5830i from a second hand shop, it was on the wrong network so he took it to be unlocked
Now the device appears to have no IMEI number and a #06# simply returns a row of zeroes
I've done a but of research and i believe that the phone shop negelcted to backup/restore the /efs folder as its completely empty
I read somewhere on here that somebody was able to resolve the issue by restoring the factory firmware, we are yet to try this
Does anyone know how to create or edit the files that should be present
I WILL BE HAPPY TO SUMBIT A PHOTO OF THE IMEI THAT IS FOUND UNDER THE BATTERY as proof that its nothing dodgy
The unlock shop ( a backstreet affair) is not interested at all
Please Help or at least tell us to bin the b***dy thing!!
Thanks in advance

http://forum.xda-developers.com/showthread.php?t=1802024
This thread might help you. Good luck !
Lord Buddha was the first guy who rooted his soul & gained super user access to his mind What busy box version did he use ? Any idea guys ?! Coz it was ENLIGHTENING !!!

Related

[Help] IMEI lost after 2.3.4 flash !

Hi all,
New owner of a nice Galaxy Ace, i tried yesterday to flash the ROM from stock Froyo to Gingerbread 2.3.4 using Odin 4.38 and SAM dedicated firmware.
All has worked fine... except that when i reboot my phone with SIM card, it is not recognized ! In fact, checking IMEI (*#06#), i have discovered that my phone has lost its IMEI so it can be used anymore for phone services...
I have tried to explore file system (using Root Explorer with root privileges) but i haven't even found /efs folder nor nv_data.bin file on the ACE... Is this normal ? Did i erase the folder when i flashed the ROM (if yes, how ?) ?
Please help me before i send back my phone to my provider...
Regards,
Cedric.
Actually this is one of the things that people are not posting on their update guides, I too am having the same problem. Luckily my phone (which is just 3 days old) is going to be replaced from where I bought it. (I learned my lesson not to mess with my phone) lol! ) Though I hope someone could help with this issue.
Hi,
What is surprizing is the missing /efs folder and imei files on the file system, even .bak ones... and the fact that nobody seems able to explain it or to explain how it should be on the Ace. I wonder if people who have posted flash/root tutorials for the Ace have really proceeded it and if it is not a simple copy/paste from Galaxy S tutorials...
BTW, I brought my Ace this morning to my local provider, it will be sent to repair services. Mine is almost new too (6 days old) so i hope i won't have too many problems with guarantee...
Rgds
Cedric92 said:
Hi,
What is surprizing is the missing /efs folder and imei files on the file system, even .bak ones... and the fact that nobody seems able to explain it or to explain how it should be on the Ace. I wonder if people who have posted flash/root tutorials for the Ace have really proceeded it and if it is not a simple copy/paste from Galaxy S tutorials...
BTW, I brought my Ace this morning to my local provider, it will be sent to repair services. Mine is almost new too (6 days old) so i hope i won't have too many problems with guarantee...
Rgds
Click to expand...
Click to collapse
I think most of them probably just copy pasted them tutorials from some other sites and takes credit for em. OH well, people nowadays. I just hope there will be a thorough tutorial/guides that will be posted by veterans/pro's about these stuff. (So we will be well guided).
Thats good, well it hasn't been a week for you. Well my case, it hasn't been 3 days yet thats why they are going to replace the phone.
Cedric92 said:
Hi all,
New owner of a nice Galaxy Ace, i tried yesterday to flash the ROM from stock Froyo to Gingerbread 2.3.4 using Odin 4.38 and SAM dedicated firmware.
All has worked fine... except that when i reboot my phone with SIM card, it is not recognized ! In fact, checking IMEI (*#06#), i have discovered that my phone has lost its IMEI so it can be used anymore for phone services...
I have tried to explore file system (using Root Explorer with root privileges) but i haven't even found /efs folder nor nv_data.bin file on the ACE... Is this normal ? Did i erase the folder when i flashed the ROM (if yes, how ?) ?
Please help me before i send back my phone to my provider...
Regards,
Cedric.
Click to expand...
Click to collapse
Hey!
I dont know, what you guys are DONE WRONG! I flashed my phone not less then 30 time(with in 2months) and ALL good. Never LOSE MY IMEI.
Really cant help. I think you done something WRONG(not FOLLOW the INSTRUCTIONS step by step or something else). Its my opinion!
CHEERS!
casiocas said:
Hey!
I dont know, what you guys are DONE WRONG! I flashed my phone not less then 30 time(with in 2months) and ALL good. Never LOSE MY IMEI.
Really cant help. I think you done something WRONG(not FOLLOW the INSTRUCTIONS step by step or something else). Its my opinion!
CHEERS!
Click to expand...
Click to collapse
Dont happen to u doesnt mean it wont happen to anyone else. Btw im also flashed my ace more than 10 times already, and never encounter lost imei problem. But reading this made me realize how critical this matter is. I know that imei on android supposedly were stored in efs folder, but on my ace i couldnt find that folder to backup. Weird...
So anyone can clarify this? Is it true that ace doesnt have efs folder? And if its indeed doesnt have that folder, where does our imei were stored instead?
Sent from your phone
an0nym0us_ said:
I know that imei on android supposedly were stored in efs folder, but on my ace i couldnt find that folder to backup. Weird...
So anyone can clarify this? Is it true that ace doesnt have efs folder? And if its indeed doesnt have that folder, where does our imei were stored instead?
Click to expand...
Click to collapse
That's a very good question ! Maybe if i had known where imei is stored, i would be able to restore it myself instead of send my phone back to support centre and
take the risk to pay cash for the repairing...
Cedric92 said:
Hi,
What is surprizing is the missing /efs folder and imei files on the file system, even .bak ones... and the fact that nobody seems able to explain it or to explain how it should be on the Ace. I wonder if people who have posted flash/root tutorials for the Ace have really proceeded it and if it is not a simple copy/paste from Galaxy S tutorials...
BTW, I brought my Ace this morning to my local provider, it will be sent to repair services. Mine is almost new too (6 days old) so i hope i won't have too many problems with guarantee...
Rgds
Click to expand...
Click to collapse
Don't judge the people from this forum, i have flashed as well with odin plenty of times, and encountered no problem. Flashing really takes risk, we may have similar phones but the situation in which we upgrade them sometimes is the key to the outcome, like what operating system you used, open line or operator locked phones, corrupted files, etc.
By far you were the first i saw that lost their IMEI after flashing. I'm not saying it would not happen again to others, this may be a bug on the upgrade process, but such rarity might be difficult to investigate, but taking the risk is part of the game, don't blame other's if you have failed.
Goodluck on your repair, and hope you have a successful upgrade next time.
I flash my ace couple times. Still have my IMEI.
But want to backup my IMEI, i cant find /efs folder on my ace.
Does anyone, have /efs folder on your ace ?
Don't touch EFS on Galaxy Ace. Especially do not make a dump (dd) of it.
ilarrain said:
Don't touch EFS on Galaxy Ace. Especially do not make a dump (dd) of it.
Click to expand...
Click to collapse
Ok but why ?... I agree with the fact i have encountered a special case which doesn't affect other people, but i won't do any further flash of my Ace without understanding what has happened.
I have strictly followed the tutorial step by step, using Odin and a multi-package KPE ROM from SAM firmware... i am not the first one who lose his imei on the Ace after a flash, i have found several similar cases on forums. Very strange...
Above all, how are managed EFS files on the ACE ? That's the question, and until now nobody knows or wants to tell it : weird isn't ? If i had known this, maybe i would have been able to restore IMEI myself, it's a very important point.
ilarrain said:
Don't touch EFS on Galaxy Ace. Especially do not make a dump (dd) of it.
Click to expand...
Click to collapse
But i cant found any /efs folder on ace.
Is there a way to backup IMEI ?
Have you by chance tried to unlock the phone with the Galaxy Ace Unlock app available on the market ?
an0nym0us_ said:
Dont happen to u doesnt mean it wont happen to anyone else. Btw im also flashed my ace more than 10 times already, and never encounter lost imei problem. But reading this made me realize how critical this matter is. I know that imei on android supposedly were stored in efs folder, but on my ace i couldnt find that folder to backup. Weird...
So anyone can clarify this? Is it true that ace doesnt have efs folder? And if its indeed doesnt have that folder, where does our imei were stored instead?
Sent from your phone
Click to expand...
Click to collapse
IMEI is readed from HARDWARE, not from SOFTWARE(SOME FOLDER OR FROM SOME FILE). If it was in folder or somewhere in FILE, then we can change our IMEI.
Its not SOFTWARE base number. Its HARDWARE BASED NUMBER.
YOU CANT CHANGE IT. You must change your hardware, to change your IMEI.
And back to problem: I think that software CANT read your hardware RIGHT or its not SHOWING to you your IMEI(somehow its the software problem).
If you flashing, FIRST be sure that you CLEAR CACHE AND RESET System settings(IF YOU WANT TO BE SURE THAT NOTHING CANT MESS YOU PHONE SOFT).
Maybe this can help too: REMOVE your SIM and SD, before you flashing your phone!
CHEERS!
casiocas said:
IMEI is readed from HARDWARE, not from SOFTWARE(SOME FOLDER OR FROM SOME FILE). If it was in folder or somewhere in FILE, then we can change our IMEI.
Its not SOFTWARE base number. Its HARDWARE BASED NUMBER.
YOU CANT CHANGE IT. You must change your hardware, to change your IMEI.
And back to problem: I think that software CANT read your hardware RIGHT or its not SHOWING to you your IMEI(somehow its the software problem).
If you flashing, FIRST be sure that you CLEAR CACHE AND RESET System settings(IF YOU WANT TO BE SURE THAT NOTHING CANT MESS YOU PHONE SOFT).
Maybe this can help too: REMOVE your SIM and SD, before you flashing your phone!
CHEERS!
Click to expand...
Click to collapse
Not true. All that info is stored on an unmounted efs partition. Don't try to read, mount or dd that partition, as it's highly probable that it will get corrupted. Don't use unlocking app either.
Sent from my GT-S5830B using XDA App
ilarrain said:
Not true. All that info is stored on an unmounted efs partition. Don't try to read, mount or dd that partition, as it's highly probable that it will get corrupted. Don't use unlocking app either.
Sent from my GT-S5830B using XDA App
Click to expand...
Click to collapse
OK!
Maybe you can read your IMEI from SOMEWHERE IN FOLDER OR....., but IMEI is read from HARDWARE, its not SOFTWARE BASE. If you want to change your IMEI(like SELL to other ppl phone, then you can sell it, but you CANT change your IMEI).If you phone get DAMAGED and you bring it back to SERVICE(they can change your MOTHERBOARD, LIKE IN PC AND YOU GET almost new phone. But IMEI is changed and your HARDWARE IS CHANGED TOO).
I know this by my self.
IMEI is NOT software NUMBER!
If you not belive it, use GOOGLE to search, before ANSWERING! READ THIS
Here is second LINK
CHEERS!
casiocas said:
OK!
Maybe you can read your IMEI from SOMEWHERE IN FOLDER OR....., but IMEI is read from HARDWARE, its not SOFTWARE BASE. If you want to change your IMEI(like SELL to other ppl phone, then you can sell it, but you CANT change your IMEI).If you phone get DAMAGED and you bring it back to SERVICE(they can change your MOTHERBOARD, LIKE IN PC AND YOU GET almost new phone. But IMEI is changed and your HARDWARE IS CHANGED TOO).
I know this by my self.
IMEI is NOT software NUMBER!
If you not belive it, use GOOGLE to search, before ANSWERING! READ THIS
Here is second LINK
CHEERS!
Click to expand...
Click to collapse
Seriously, IMHO the one who should read more before shooting others is u
http://forum.xda-developers.com/showthread.php?t=881162
Sent from your phone
an0nym0us_ said:
Seriously, IMHO the one who should read more before shooting others is u
http://forum.xda-developers.com/showthread.php?t=881162
Sent from your phone
Click to expand...
Click to collapse
Hey!
Agree with you, but IMEI never WAS and NEVER BE software based number man. Still, just use google to find out. Like I sayed, if we all know where is IMEI code, we can CHANGE IT. But we CANT(IF YOU NOT CHANGE YOUR HARDWARE).
If you dont know, DONT link to our forum(I can use the SEARCH button[LOL]). USE INTERNET, like google!
I see, you dont READ my links!
CHEERS!
casiocas said:
Hey!
Agree with you, but IMEI never WAS and NEVER BE software based number man. Still, just use google to find out. Like I sayed, if we all know where is IMEI code, we can CHANGE IT. But we CANT(IF YOU NOT CHANGE YOUR HARDWARE).
If you dont know, DONT link to our forum(I can use the SEARCH button[LOL]). USE INTERNET, like google!
I see, you dont READ my links!
CHEERS!
Click to expand...
Click to collapse
Yes sure u can use search button, but why u dont? Seems like u who dont read my link. And yes i do click on ur link.
Btw that link i gave u is also "internet". Lol
Sent from your phone
an0nym0us_ said:
Yes sure u can use search button, but why u dont? Seems like u who dont read my link. And yes i do click on ur link.
Btw that link i gave u is also "internet". Lol
Sent from your phone
Click to expand...
Click to collapse
PEACE man, PEACE
We not here to argue about things, we MUST help ppl(how much we can)!
CHEERS!

[Q] i9305 Schematic/PCB photos for jtag

Hello,
I managed to give some hard times to me, after flashing an i9305 that I bought from eBay. The phone was rooted, in full working order, and when I flashed it to revert to stock, I managed to check EFS CLEAR, without taking any EFS backup beforehand. My odyssey is well knows to many of you; imei null/null, baseband null, to cut a long story short, I have a Samsung Galaxy S3 lte player. It does all but recognizing sim cards and provisioning networks (fair enough as I don't have a valid imei!!!).
I have gon ethrough the whole SGS2 forum, all topics, all solutions; I even unscrewed my phone to see if I can JTAG it, and that's only because QPST and EFS Pro cannot connect to my phone. Octopus and Samsung Tool CAN connect, but I cannot write imei. I cannot upload nvm files (I have a second, stock, and a friend of mine has one rooted from where we extracted the nvm in order to flash it on mine and rewrite imei), so as I read on the i9300 relevant thread, the phone can be jtaged in order to start receiving Rx and Tx commands and be able to upload the nvms and rewrite the imei.
The thing is that nobody tried to jtag this phone, and if someone did, nobody posted the resistance that has to be short circuit. As I saw here: http://forum.xda-developers.com/showpost.php?p=28073021&postcount=5 it is possible for i9300. Is there some schematic for i9305 then, or someone knows which resistance I have to short?
Any help will be appreciated...
you can still connect through Odin or adb, connecting is not the issue. there's nothing to write, imei is not stored in plain text, it's encrypted, so you won't be able to restore it if you don't have a backup. send it to service
I have the same problem bat I have imei back up sent it to repair center and after 2 month have it back
told me replace motherboard pay 250 euro bikose the binary counter 6.
You fixed Patrida?
trifos said:
I have the same problem bat I have imei back up sent it to repair center and after 2 month have it back
told me replace motherboard pay 250 euro bikose the binary counter 6.
You fixed Patrida?
Click to expand...
Click to collapse
Kalimera filaraki!
Unfortunately I was unable to fix it. Sotmax (member on both xda and myphone) offered to fix it. He could do it for a small cost but I would have to ship it from Thessaloniki to Kefalonia, and it was during the days that the ship workers were on strike. So it would delay a bit more, and I preferred to sell it. A guy over here (who then became friend and we exchange from time to time), bought it and fixed it in 10 minutes!!!!
He has schemas and JTAGs for most of the commercial phones, and I think that he had to open it and de/solder some pcb. It's not something difficult for him, but for you and me it's an issue!! The thing is that someone is now happy with the phone, and I am happy with my new gray 9305!
So if you need to fix it and you cannot find a workaround, you can always try talking to one of these 2 guys to have your work done! I know how much Sotmax is charging for the repair, and he says his job is guaranteed. you just have to be patient for 2 days to ship and 2 days to return (the fix takes no more than 30 minutes as he said). The other guy (his nickname is demernick at insomnia) didn't tell me how much he takes to fix, but it's much quicker as he only needs 1 day to ship from Florina to Thess, and another 1 day to return, so it's half time
There is also another one guy who writes in here. He says that he can do the job over the internet via teamviewer (you just have to follow his instructions and post the original IMEI from the box and phone under the battery), and he works with Octopus box ans Samsung Tool. If he manage to fix it, he charges you 10 euros via Paypal! He spent 2 days for me, so I donated that 10 euros to him for his work, even though he couldn't fix it... his website is cvxcvx.pl and I think his name in here has something to do with the website.
All 3 of them are trusted users. 2 of them are respected in here, and demernick is well established on insomnia!
If you need some extra help, feel free to contact me!
latousakis said:
Hello,
I managed to give some hard times to me, after flashing an i9305 that I bought from eBay. The phone was rooted, in full working order, and when I flashed it to revert to stock, I managed to check EFS CLEAR, without taking any EFS backup beforehand. My odyssey is well knows to many of you; imei null/null, baseband null, to cut a long story short, I have a Samsung Galaxy S3 lte player. It does all but recognizing sim cards and provisioning networks (fair enough as I don't have a valid imei!!!).
I have gon ethrough the whole SGS2 forum, all topics, all solutions; I even unscrewed my phone to see if I can JTAG it, and that's only because QPST and EFS Pro cannot connect to my phone. Octopus and Samsung Tool CAN connect, but I cannot write imei. I cannot upload nvm files (I have a second, stock, and a friend of mine has one rooted from where we extracted the nvm in order to flash it on mine and rewrite imei), so as I read on the i9300 relevant thread, the phone can be jtaged in order to start receiving Rx and Tx commands and be able to upload the nvms and rewrite the imei.
The thing is that nobody tried to jtag this phone, and if someone did, nobody posted the resistance that has to be short circuit. As I saw here: http://forum.xda-developers.com/showpost.php?p=28073021&postcount=5 it is possible for i9300. Is there some schematic for i9305 then, or someone knows which resistance I have to short?
Any help will be appreciated...
Click to expand...
Click to collapse
Are you sure you ticked EFS clear? Could it be that you had Perseus kernel prior to installing stock? I had some similar problem and as a result my phone only works with Perseus kernel installed.
I would try installing Perseus kernel to see if the phone magically springs back to life.
Rekoil said:
Are you sure you ticked EFS clear? Could it be that you had Perseus kernel prior to installing stock? I had some similar problem and as a result my phone only works with Perseus kernel installed.
I would try installing Perseus kernel to see if the phone magically springs back to life.
Click to expand...
Click to collapse
I was aware of Perseus, but that wasn't the issue. I DID tick the EFS Clear. After booting back to normal, the imei wasn null/null and the /efs folder was wiped out. it was en empty folder with just 1-2 files in it...
latousakis said:
I was aware of Perseus, but that wasn't the issue. I DID tick the EFS Clear. After booting back to normal, the imei wasn null/null and the /efs folder was wiped out. it was en empty folder with just 1-2 files in it...
Click to expand...
Click to collapse
Thing is, the I9305 doesn't store IMEI in the EFS. Which is why I find this a little strange.
Rekoil said:
Thing is, the I9305 doesn't store IMEI in the EFS. Which is why I find this a little strange.
Click to expand...
Click to collapse
Yes, but the other strange thing is that instead of having a bunch of files, there were only 2 files in the /efs folder!
latousakis said:
Yes, but the other strange thing is that instead of having a bunch of files, there were only 2 files in the /efs folder!
Click to expand...
Click to collapse
So get yourself a donor EFS and substitute the MAC addresses for your own data, it's on the box isn't it?
Rekoil said:
So get yourself a donor EFS and substitute the MAC addresses for your own data, it's on the box isn't it?
Click to expand...
Click to collapse
I think that that'w what he's done!

[Q] new motherboard and IMEI 000000000000000

Hy,
1 month ago, my original motherboar dead and I wasn't under warranty. So I decide to change it by myself. Today, my mobile run with the new motherboard (internet, phone, usb device etc...) under 4.1.2 XXLT9 and it isn't root. But I have an IMEI 00000000000000 and an IMEISV 01.
What does it mean ? Did I need to change the IMEI and how ? Could I root my phone without risk ?
Thank's to everybody for an idea
Hy,
Does anybody have an idea ?? really ???
so I find solution alone.
thank's to everybody
I hope ..... we will see
simerique2 said:
so I find solution alone.
thank's to everybody
I hope ..... we will see
Click to expand...
Click to collapse
Usually when you get the board changed by service center, it comes back with the same imei or a new one.. Not sure where you got the board from but if you have backup of your earlier efs img, that could be of some help.
I don't have the IMEI of the old motherboard, it's dead before...
And an IMEI in fifteen 0 is the sign of a virgin motherboard that could be send to every where... I learn this in the web...
So I decide to keep it like this, because it seem very difficult to change it without a root of the phone.

Changed imei

Is it possible to changed imei
I got a problem with my phone (G800F) my imei has changed. I don't know how but it did..are there any solutions to fix this ? I don't know what to do now.. now it will not connect to network
Think you flashed a rom with another CSC as original, or? Also think you do not have a EFS backup...
I didn't make a backup.. because I did not changed the rom .. that is why I don't understand why the imei has changed... If I put the imei on the website imei.info it says Nokia 6310.. I think I must wait for people to create a program to fix this .. or are there already solutions for this??
hi, i have exactly the same problem. Did noting and suddenly my imei has changed.
Afther hours of researce i havent found a working solution . Is there a way to change the imei back to the original one?
-Samsung S5 mini / G800F
Things done after the problem appears
- rooted
- installed cm13 beta
It would be nice if somebody can help me
mine too
bakkertjuh said:
I didn't make a backup.. because I did not changed the rom .. that is why I don't understand why the imei has changed... If I put the imei on the website imei.info it says Nokia 6310.. I think I must wait for people to create a program to fix this .. or are there already solutions for this??
Click to expand...
Click to collapse
mine too
my mobile doesnot support the sim smg800f
Mine too!
Yeah, thats exactly the samething happening to me! What the hell is this? You guys remember if you also got a myserious call from ukraine around that time?
So this is a bug?!?
Well, ok. I don´t mind. I dont see how i can fix this and nobody is willing to help me. I´ll just buy a new s7.
Hi All,
Did any one actually get a fix for this issue as I have exactly the same problem, my SM-G800F IMEI now also shows as - IMEI 350695200123951-01 which is for a blacklisted NOKIA 6310. If anyone can supply an absolute beginners guide for me as to how I can get my original Imei back that would be fantastic.
I am just a user of an android phone and have zilch experience of tinkering with them.
I have seen reference to things like Odin and flashing firmware and am quite happy to give it a go myself and learn
I will post this on a few other threads that list the same issue as I am desperate to get this fixed now as is a waste of a perfectly good phone !!
Cheers.

SM-G800F no network, changed IMEI

Hello XDAs,
After reading that Forum with much enthusiasm for a few...well...years, i got my first question.
I hope you can help me with a big problem on my g800f: I can´t register in network.
When I search for network it pops up a few results, but if choose one to register, it says "Can´t register. Try again later."
I did a few hours of research and found out it might have something to do with my IMEI (Note: till that day i did nothing to my phone, except cf-autoroot. But never faced any problems!).
So I checked my IMEI and it wasnt the original, it was changed to 350695200123951. So I googled a bit and realised it might have something to do with the efs-partition. Googled for solutions.
Found out it might help to flash a Stock-Rom, one with three parts, via odin so i did it. Everything worked fine, but my IMEI still was the different one.
I was a bit irritated so i searched for that IMEI. And there are a few threads (some in russian and arabian), also owners of a g800f, which also reported this problem: They did nothing, but sudddenly the IMEI changed to this number. One author tells he received a myserious call from the ukraine after this happened. He didnt answer it. I am quite sure i also received that call- I didnt answer it either.
So i googled even mre: "How to restore a damaged efs-partition, without backup?" I came to one very outdated guide which wanted me to delete the efs (after saving it on externalSD) and do a few mysetrious actions...
Well, i just realised i cant fully delete the efs, its not possible and i also cant apply my backup from external sd. Anyone knowing a solution for this?
But, the most important, how can i bring my g800f back into mobile network?
Or just: How can i get away from that cursed IMEI?
Any Ideas?
P.S. If you got any questions regarding technical details of my phone(CSC, AP, Kernel, Modems), just ask. I´ll answer.
P.P.S I´m excusing for that horrible english. I googled the entire night and i´m german.
LukiRe said:
Hello XDAs,
After reading that Forum with much enthusiasm for a few...well...years, i got my first question.
I hope you can help me with a big problem on my g800f: I can´t register in network.
When I search for network it pops up a few results, but if choose one to register, it says "Can´t register. Try again later."
I did a few hours of research and found out it might have something to do with my IMEI (Note: till that day i did nothing to my phone, except cf-autoroot. But never faced any problems!).
So I checked my IMEI and it wasnt the original, it was changed to 350695200123951. So I googled a bit and realised it might have something to do with the efs-partition. Googled for solutions.
Found out it might help to flash a Stock-Rom, one with three parts, via odin so i did it. Everything worked fine, but my IMEI still was the different one.
I was a bit irritated so i searched for that IMEI. And there are a few threads (some in russian and arabian), also owners of a g800f, which also reported this problem: They did nothing, but sudddenly the IMEI changed to this number. One author tells he received a myserious call from the ukraine after this happened. He didnt answer it. I am quite sure i also received that call- I didnt answer it either.
So i googled even mre: "How to restore a damaged efs-partition, without backup?" I came to one very outdated guide which wanted me to delete the efs (after saving it on externalSD) and do a few mysetrious actions...
Well, i just realised i cant fully delete the efs, its not possible and i also cant apply my backup from external sd. Anyone knowing a solution for this?
But, the most important, how can i bring my g800f back into mobile network?
Or just: How can i get away from that cursed IMEI?
Any Ideas?
P.S. If you got any questions regarding technical details of my phone(CSC, AP, Kernel, Modems), just ask. I´ll answer.
P.P.S I´m excusing for that horrible english. I googled the entire night and i´m german.
Click to expand...
Click to collapse
I´ve just seen this problem being reported i a different thread. Guess the problem will be discussed there?
Hi All,
Did any one actually get a fix for this issue as I have exactly the same problem, my SM-G800F IMEI now also shows as - IMEI 350695200123951-01 which is for a blacklisted NOKIA 6310. If anyone can supply an absolute beginners guide for me as to how I can get my original Imei back that would be fantastic.
I am just a user of an android phone and have zilch experience of tinkering with them.
I have seen reference to things like Odin and flashing firmware and am quite happy to give it a go myself and learn
I will post this on a few other threads that list the same issue as I am desperate to get this fixed now as is a waste of a perfectly good phone !!
Cheers.
SM-G800F, can't register in network
Hello,
I have exactly the same problem. Since some month I got the message "can´t register in network". After checking all, I found that my SM-G800F IMEI has changed to a NOKIA 6300 IMEI.
If anyone knows a fix for this issue (set back to the orignal IMEI) , it would be great. All apps which I could find didn't work (XPOSED IMEI Changer Pro , Mobile Uncle Tools App, MTK Technikmodus... ), are not supporting S5mini.
I don't have a backup of the original system EFS file.
Would be great when one could help.
Regards
Chris
@S5miniChris somewhere in XDA I read that restoring the original stock (multiple part) firmware might or did help.
Gotta do it in Odin (recommended to use an older version like 3.09).
bmwdroid said:
@S5miniChris somewhere in XDA I read that restoring the original stock (multiple part) firmware might or did help.
Gotta do it in Odin (recommended to use an older version like 3.09).
Click to expand...
Click to collapse
Thanks for your reply.
I have installed the original stock firmware. But it did not change the IMEI. Available for my model is only the single file " G800FXXU1CRG3_G800FDBT1CRE1_G800FXXU1CRG3_HOME.tar.md5"
Multible file firmware I couldn't find.
A manual modification of the IMEI should be possible with " Best smart Tolls " e.g. : BSTPRO 4.03 . But for the software a dongle is requiered. To purchase this is for one time use too expensive for me
Regards
Chris
S5miniChris said:
Thanks for your reply.
I have installed the original stock firmware. But it did not change the IMEI. Available for my model is only the single file " G800FXXU1CRG3_G800FDBT1CRE1_G800FXXU1CRG3_HOME.tar.md5"
Multible file firmware I couldn't find.
A manual modification of the IMEI should be possible with " Best smart Tolls " e.g. : BSTPRO 4.03 . But for the software a dongle is requiered. To purchase this is for one time use too expensive for me
Regards
Chris
Click to expand...
Click to collapse
Where from did you get the stock?
Samfirm_reborn tool already tried?
https://github.com/ivanmeler/SamFirm_Reborn/releases
Checking "binary nature" or "factory mode" downloads a multiple part rom.
Edit:
Checked tool and it's working.
bmwdroid said:
Where from did you get the stock?
Samfirm_reborn tool already tried?
Checking "binary nature" or "factory mode" downloads a multiple part rom.
Edit:
Checked tool and it's working.
Click to expand...
Click to collapse
I flashed now also with " binary nature " firmware downloaded with SamFim. The IMEI is still the same, it hasn't changed to the orginal IMEI.
I really can't believe that a firmware update will flash the E2PROM where the IMEI is stored. Therfor the orginal IMEI must be stocked some where
in the phone and by flashing transfered to the E2PROM.
Regards

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