[Q] Need info about unlocking - Galaxy S III Q&A, Help & Troubleshooting

Hello to everyone.
I hope i have posted in the right section.
I need info regarding the following situation:
i have a I9300 wich had 4.1.2 and was unlocked by software because it was EFS V1.
Because i didn`t made the proper digging i updated it to the original firmware af android 4.3 with Odin.
After flash i gor the unregistered sim network...because the EFS updated to V2. afterwards flashed again to 4.1.2 original and tryied to unlock using root,busy box and galaxsin unlock but due to EFS V2 didnt work.
Unfortunately i didn`t made backup to EFS V1 before update and now the IMEI shows 0049 (test imei).
The question is: the only way to solve this issue is going to a service center, recover original IMEI and unlock by Imei using pro tools or there is another way?
Thank you.

Pay for an unlock code is easiest.

Solved
Solved using this tutorial:
androidveterans.com solve-registered-network-galaxy-s3-i9300-issue-restore-imei
using zuluman`s patched kernel and modem, using original 4.3 firware from UK....and only with this firmware
Hope this helps others witch have the same problem.
Thanks

Related

[Q] 0049*** or 0000 IMEI EFS problems no signal Argentina Movistar Claro

Hi:
I am a new member, I had a Samsung Galaxy S3 i9300 , I buy this device in Argentina, ( Movistar) with the version 4.0.4. I have signal with Movistar, and working good. One day a update to the new version 4.1. and root and install busybox , and galaxy unlock, to use other Sim ( CLARO) and working good. with out problems. But last week i upgrade to the last version 4.1.2 and i lost my unlock, soo i do it again, ( root busybox galaxyunlock,) but with didnt works. Only works with Movistar. But not With (CLARO)
I change the firmware a lot times, i use the 4.2.2 and the 4.3 ,the official and not official rooms, and use the UFN and CTI last firmwares, and download the oldest 4.0.4, but didnt works.
I use the wipe and restar tools, but didnt works. i dont way i install ClockworkMod 6.0.4.4 ( http://forum.xda-developers.com/showthread.php?t=2200501 ) and i start with the problems.
I can use my device with any company,
I think the EFS are broken, soo i try to recovery my backup files, deleting the efs folder and restar the device, i use the program EFS_Pro_1.8.11_Release , but i can recovery my IMEI,
if i dial *#06# is NULL or 0049**
can you help me Thank you
Best regards.
PD: sorry my english is too bad.
Lucas
Unbelievable!!! There is a magic option called SEARCH.
GreatVortex said:
Unbelievable!!! There is a magic option called SEARCH.
Click to expand...
Click to collapse
Sorry, i download the all files.
i use odin to charge this files ? do you have same instructions ?
thank you
Lucas
This is not question and answers .
You should read the stickied EFS/ IMEI thread first .
All the information is posted .
You post rambles to much to understand your actual problem .
What is your actual problem now ??
If EFS or IMEI read the sticky first .
Thread closed, please use this thread to post your problem in (but please read the thread a bit first).

[Q] How to revert back from 4.3 to 4.1.2 (Malaysia Region)

Hi guys. I need some helps. I'm from Malaysia and the android that i used before is android 4.1.2 I9300XXEMF6 (original firmware). Then ive upgraded it into android 4.3 (I9300XXUGMJ9) for UK region. Even though it is an official samsung firmware, i found out it is unstable. I flash it back to android 4.1.2 (Malaysia original firmware) but something happen. The "network have not registered" problem. I then found the solution by rooting it and install the modem. But it act funnily as the android seems unstable from before. I flash it over and over again hoping that reverting back to 4.1.2 will be the same as before but i ended up using 4.2 as the 4.1.2 have network problem. I already search the forum and find many solutions but none provide the files that i need. I also have tried KIES method by recovery and initializing method but it resulted the same. "Network has not registered. The only solution is to root it and i would really like to NOT to root my phone.
My question is, can someone provide me with necessary files such as the pit files, phone (modem) and the CSC files that specifically for Malaysia regions? I already have the firmware file. Please guys. The instability of 4.3 is driving me crazy.
BTW im using i9300.
Stop.
You are going to brick your phone if you flash things without understanding them.
Go to general forum and read the sticky post, especially efs 'know this stuff'.
Flashing a pit file WILL brick your phone.
When you flashed 4.3 you upgraded to efs v2, there is no way back. You can only use EMGx and later modems now, find a later modem that will work in your country, either with 4.1 or 4.3.
Edit. Backup your efs, perform a factory reset, flash your 4.1 country rom then an EMG modem.
hey man, thanks. One question, where can i find this emg modem?
darkeiser said:
hey man, thanks. One question, where can i find this emg modem?
Click to expand...
Click to collapse
Its under SEARCH man
JJEgan said:
Its under SEARCH man
Click to expand...
Click to collapse
+1
darkeiser said:
Hi guys. I need some helps. I'm from Malaysia and the android that i used before is android 4.1.2 I9300XXEMF6 (original firmware). Then ive upgraded it into android 4.3 (I9300XXUGMJ9) for UK region. Even though it is an official samsung firmware, i found out it is unstable. I flash it back to android 4.1.2 (Malaysia original firmware) but something happen. The "network have not registered" problem. I then found the solution by rooting it and install the modem. But it act funnily as the android seems unstable from before. I flash it over and over again hoping that reverting back to 4.1.2 will be the same as before but i ended up using 4.2 as the 4.1.2 have network problem. I already search the forum and find many solutions but none provide the files that i need. I also have tried KIES method by recovery and initializing method but it resulted the same. "Network has not registered. The only solution is to root it and i would really like to NOT to root my phone.
My question is, can someone provide me with necessary files such as the pit files, phone (modem) and the CSC files that specifically for Malaysia regions? I already have the firmware file. Please guys. The instability of 4.3 is driving me crazy.
BTW im using i9300.
Click to expand...
Click to collapse
What you`ll need is a new version of 4.1.2 with a mg4 baseband or latest, the 4.3 rom changed your efs folder format. If you want to stick with your 4.1.2 go to http://forum.xda-developers.com/showpost.php?p=43946365&postcount=15 and flash that emergency.zip (mg4 baseband), it should do the job.
Hi guys. Already solved the network problem by installing the Modem DDEMG2 files via odin. Thanks for your guys helps and advice. For some that thinks that i haven't read many posts, i have read them but cannot grasp the concept. Sorry for the inconvenience. Many thanks.
i9300 galaxy s3 IMEI lost and something showing on the homescreen
last time i had flashed my galaxy s3 i9300 to the leaked official android 4.3 , after updated battery drain fast so i decided to downgrade to official 4.1.2 , but after i downgrade IMEI lost and show emergency call only , and something is showing on the homescreen . I really need some help
lowminghung said:
last time i had flashed my galaxy s3 i9300 to the leaked official android 4.3 , after updated battery drain fast so i decided to downgrade to official 4.1.2 , but after i downgrade IMEI lost and show emergency call only , and something is showing on the homescreen . I really need some help
Click to expand...
Click to collapse
Your question has been posted multiple times . Forum rules require you to search before posting .
Google <<< I9300 your search terms > xda
STICKYS
http://forum.xda-developers.com/showthread.php?t=2344125
UNDERSTAND FIRST
http://forum.xda-developers.com/showthread.php?t=2362743
Network IMEI EFS
http://forum.xda-developers.com/showthread.php?t=2393289
Downgrade and network problems .
http://forum.xda-developers.com/showthread.php?t=2531221

[Q] Imei changed after flashing rom!!

Hey guys, just registered to post about a problem I've encountered with my galaxy s3 i9300. I rooted my phone and flashed cyanogen mod 10.2. After this everything looked good but then I realised that my mobile network wasn't working. I searched around the web for a few weeks now and found out that the problem was my imei number. My IMEI number changed to 004999010640000 from the official number under my battery and I couldn't find out how to restore it. Apparently I should have backed up my EFS folder before the rooting process but I didn't know.
Is there any way to restore my current IMEI number back to the official IMEI number without the EFS folder?
I'm new to this sort of stuff and I would really appreciate it if somebody could tell me something about this problem..Thanks in advance!!
jikimchy said:
Hey guys, just registered to post about a problem I've encountered with my galaxy s3 i9300. I rooted my phone and flashed cyanogen mod 10.2. After this everything looked good but then I realised that my mobile network wasn't working. I searched around the web for a few weeks now and found out that the problem was my imei number. My IMEI number changed to 004999010640000 from the official number under my battery and I couldn't find out how to restore it. Apparently I should have backed up my EFS folder before the rooting process but I didn't know.
Is there any way to restore my current IMEI number back to the official IMEI number without the EFS folder?
I'm new to this sort of stuff and I would really appreciate it if somebody could tell me something about this problem..Thanks in advance!!
Click to expand...
Click to collapse
ill share my experience with you, but i can't guarantee that it will work for you. I was on a Samsung 4.1.2 ROM. I flashed a Samsung 4.2.2 ROM, which had a modem change option (cant remember which one i selected). The result was my IMEI being change to 004xxxxxxxxx as well. I reflashed the 4.1.2 ROM, my IMEI went back to normal. Then i reflashed the 4.2.2 ROM and selected "do no change modem". My IMEI stayed normal when i reflashed the 4.2.2 so i assume it has something to do with the modem.
You change yours by any change?
Don't know if this will help you, maybe someone with more experience can.

[Q] xxemg4 problem

Hello everyone,
Firstly, I apologize for my bad english.
so my problem is that : there are two week ago i buy sg3 (i9300) from swiss, and when I got home (Algeria) I realized that I had no network. so i instal a root on the phone, and I used galaxy sim unlocker, voodoo, the ariza patch,regionlock away. no network at all.. . so I understand the problem. xxemg4 modem is intended for the European sim only, then xxemg4 use a new format of efs. so it's impossible to unlock the network for the moment.
So I ask you one thing. xxemg4 modem replaced by another modem supporting efs "v2" ... Algerian for example. would be the solution? whether helped me solve this problem please.
Thank you kindly help me good evening.
No, you cannot unlock the phone yourself. You cannot flash an earlier modem now you have efs v2.
If you flash the right modem for your country the phone might get signal, but it will have to be EMG4 or after at least. Unlocking will still need a code provided by the original swiss mobile network.
Sent from my GT-I9300 using Tapatalk
thank very much for your answer.
can you link me a mirror for a modem unbanned and supporting efs v2. or can i updating my gt-i9300 to 4.2.2 or 4.3 and use modem ubanned ? . so please link me a modem or a solution to unlocking the network.
thank you

not registered on network / Imei changed to 0049**

Hello
I Make A New firmware by Odin Its 4.3 Because my Samsung S3 ( GT-I9300 ) Is too slow after that I Got Not registered at network And i check my imei by *#06# i Got 0049******
Its not my original Imei i have the original one Under the battery I Download new firmware but the same
i try ariza patch and the same
i have been trying to fix it for week ago / i Try All Modems and kernels But same
Please Help Me fast
saamiir said:
Hello
I Make A New firmware by Odin Its 4.3 Because my Samsung S3 ( GT-I9300 ) Is too slow after that I Got Not registered at network And i check my imei by *#06# i Got 0049******
Its not my original Imei i have the original one Under the battery I Download new firmware but the same
i try ariza patch and the same
i have been trying to fix it for week ago / i Try All Modems and kernels But same
Please Help Me fast
Click to expand...
Click to collapse
Read this thread: [REF] IMEI / EFS - Know this stuff (i9300) - including "no network"
If you don't have an EFS backup, and you already tried to odin stock 4.3, then you should take it to a phone repair shop.
You already got the correct answer in the last thread you started, don't start duplicates.
josephiskandar said:
Read this thread:
If you don't have an EFS backup, and you already tried to Odin stock 4.3, then you should take it to a phone repair shop.
Click to expand...
Click to collapse
Alright Now I Have A Back up [ Before Install firmware 4.3 ] By Samsung kies 3 Can Samsung Kies back up help me to know what is the old software version or help me in this problem ??
http://forum.xda-developers.com/galaxy-s3/help/imei-changed-help-0049-t3064131
Please do not open multiple threads for the same issue. Thanks.

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