Here's the deal:
I have a Samsung galaxy S3 I9300 bought from China, it was working normal without any problem until I wanted to install another Firmware beceause the Chinses didn't have any Gapps (no Google maps, no Gmail, no Chrome...), ... didn't go well (lost the IMEI and I got one starting with 0049..., so I can't make any calls or other things with my SIM card).
I reflashed it with Chinese rom, I still have the 0049 IMEI and I lost the CSC, when I dial *#1234# I get:
AP: I9300ZCEMF2
CP: I9300ZCELL1
CSC: Unknown
the ROM already installed: I9300ZCEMF2_I9300CHNEMF2_I9300ZCELL1_HOME.tar.md5 So I am now downloading another Chinese ROM (with android 4.3 in it) the file name is I9300ZCUBML1_I9300CHNBML1_CHN.zip so technecally the PDA version is I9300ZCUMBL1
Some informations:
model number: GT-I9300
Android 4.1.2
BaseBand Version: I9300ZCELL1
Kernel version: 3.0.31-1274177 [email protected]#1 SMP PREEPT Thu Jun 20 17:53:58 KST 2013
Build number: JZ054K.I9300ZCEMF2
Here's what I want from you guys:
If I install this ROM, what could go wrong? I mean could I have more problems than i already have?
Obviously, I am trying to do is
1.get rid of the CSC unknown
2.get my IMEI back
If the flash will be succefull Do i have any chance of fixing any of these problems? If installing the new ROM won't do anything about it, how can I fix it?
I hope that my problem is clear. and if you need any more information just tell me, I'll update as soon as possible.
Thanks
Search and read before posting duplicate threads, efs and imei problems many times and sticky threads.
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
Mod Edit
Please refer to ,and post in the stickies in the General section.
Thread closed
malybru
Forum Moderatorand post in
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Hello friends
Look i want to install android 4.3 on my S3, i am currently runnig stock android 4.1.2 but the problem is that when i connect the S3 to kies it tell me that my phone csc is (XXX). I already updated once my S3 to 4.3 but i lost my IMEI and serial number.. I have to pay $30 to otter person to fix that. Well now i have the phone working but i want to install android 4.3. I have the efs backup folder but i dont know the steps to do it and i dont want my phone lost the network conectivity. So please help me! I am from Costa Rica and if anyone needs more info just tell me.
When i dial *#1234# this is what i see
AP: I9300XXEMB5
CP: I9300XXEMB5
CSC: I9300XAEMB5
In settings my serial number is 0000 and in about option it says device modified, so i dont have OTA updates.
Thanks
PD: Sorry for my english
Answers stickied FAQ and guides .
http://forum.xda-developers.com/showthread.php?t=2344125
Critical you read the first two posts .
Hi guys,
I really hope that one of you can help me with my problem!
First I posted this thread in another forum (T-Mobile, Wind, Mobilicity, Videotron Samsung Galaxy S III)
but they proposed me to place it here, because it is a international model. I9300 from Tmobile.
What my problem is:
Last summer a guy abroad rooted my Galaxy S3 (Tmobile) so I could use my phone abroad.
Unfortunately I didn't know that, cause my knowledge about devices isn't that good.
I think that he changed my IMEI number and that this is the problem with my simcard which isn't accepted by my phone.
Two days ago my phone started to do weird things like starting it self and locking it self.
So yesterday night I decided to unroot my phone, I thougt this could be a reason of it.
I unrooted it by a video at youtube and it worked. Only like I have said my sim card dont work.
The only number I can call is the emergency number and I don't think that will help --'
Please help me, I am really desperate!
(my english isn't so good, I hoop that I am clear enough)
Greets!
a few information maybe it will help:
Model number: GT-I9300
Android version: 4.1.2
Baseband- version: I9300BOLK3
Kernel version: 3.0.31-836582
[email protected] #1
SMP PREEMPT Tue Jan 15 14:17:21 KST
2013
Buildnumber: JZ054K.I9300XXEMA2
ERI version: not available
IMEI: 004999010640000
IMEISV: 01
Device status: normal
CSC: I9300TNLMA2
binary: 0
Please, read this thread: [REF] IMEI / EFS - Know this stuff (i9300) - including "no network"
Duplicate thread. Reported.
You should create one thread, and wait for an answer, rather than opening another. It helps you by appearing professional and helps us by not spamming.
Thread closed, duplicate of this http://forum.xda-developers.com/showthread.php?t=2530337
You should create one thread, and wait for an answer, rather than opening another. It helps you by appearing professional and helps us by not spamming.
Thread closed, duplicate of this http://forum.xda-developers.com/showthread.php?t=2530337
Hi guys,
I really hope that one of you can help me with my problem!
First I posted this thread in another forum (T-Mobile, Wind, Mobilicity, Videotron Samsung Galaxy S III)
but they proposed me to place it here, because it is a international model. I9300 from Tmobile.
What my problem is:
Last summer a guy abroad rooted my Galaxy S3 (Tmobile) so I could use my phone abroad.
Unfortunately I didn't know that, cause my knowledge about devices isn't that good.
I think that he changed my IMEI number and that this is the problem with my simcard which isn't accepted by my phone.
Two days ago my phone started to do weird things like starting it self and locking it self.
So yesterday night I decided to unroot my phone, I thougt this could be a reason of it.
I unrooted it by a video at youtube and it worked. Only like I have said my sim card dont work.
The only number I can call is the emergency number and I don't think that will help --'
Please help me, I am really desperate!
(my english isn't so good, I hoop that I am clear enough)
Greets!
a few information maybe it will help:
Model number: GT-I9300
Android version: 4.1.2
Baseband- version: I9300BOLK3
Kernel version: 3.0.31-836582
[email protected] #1
SMP PREEMPT Tue Jan 15 14:17:21 KST
2013
Buildnumber: JZ054K.I9300XXEMA2
ERI version: not available
IMEI: 004999010640000
IMEISV: 01
Device status: normal
CSC: I9300TNLMA2
binary: 0
Your unrooting had changed the imei to a default, you don't say what you did to unroot but you probably flashed a v1 efs rom instead of v2.
Go read sticky threads, efs 'know this stuff'.
Hi Chaps,
Hope you can help me, I recently bought a 2nd hand S3 GT-I9300 and im based in the UK however the phone is rooted and I want to return to stock so I can upgrade to JB the natural way.
My phone details are as follows:
AP: I9300xxBLFB
CP: I9300XXLFB
CSC:I9300OXFBLF1
Android Version: 4.0.4
Baseband Version:I9300XXLFB
Kernal Version: Kernel Version 3.0.15-554452-user [email protected] #1
I am not sure what network it was originally on but I think its sim free as my 3 sim works fine.
Could you point me to the correct Stock firmware to do this?
Thanks in advance
If I flash this JB stock firmware will I be ok:
Model: GT-I9300
Country: United Kingdom
Version: Android 4.3
Changelist: 2168382
Build date: Thu, 28 Nov 2013 12:07:41 +0000
Product Code: BTU
PDA: I9300XXUGMK6
CSC: I9300OXAGMK6
MODEM: I9300XXUGMK6
I know how to flash just want to make sure I get the correct firmware.
Cheers
You may or may not get official updates if you flash firmware . It all depends upon the codes presented by your phone .
The firmware you link to .s UK 4.3 multi networks .
Flashed the firmware everything works accept I can’t now register on the 3 Network. Any other firmware recommendations?
Cheers
UNDERSTAND FIRST
http://forum.xda-developers.com/showthread.php?t=2362743
Network IMEI EFS
http://forum.xda-developers.com/showthread.php?t=2393289
JJEgan said:
UNDERSTAND FIRST
http://forum.xda-developers.com/showthread.php?t=2362743
Network IMEI EFS
http://forum.xda-developers.com/showthread.php?t=2393289
Click to expand...
Click to collapse
I can see my IMEI when I go settings, so basically have I goosed my phone?
You may find your phone was on such an old firmware for a reason, usually a botched repair of the efs folder.
Or do you mean the network lock has returned?
PCNutt3r said:
have I goosed my phone?
Click to expand...
Click to collapse
The BTU firmware is UK and Europe generic rom, it will work on any network but if your phone was previously locked to another network then the sim lock can return when the rom is flashed, so it may only recognise O2 or Vodafone sims for example, you can try different sims in the phone to see if they work.
Type *#1234# into your keypad and check the CSC shows as I9300OXAGMK6
If the CSC is correct then the phone should identify your sim so try a factory reset, it will wipe the phone data and reset it.
Thanks chaps!! Ended up swapping out the phone! Lets just say it was rooted in a sneaky way. Flashed my new phone with the firmware above and its working like a dream!! Thanks again!
my phone model is a GT-I9300
andriod version is 4.3
baseband version: UNKNOWN
kernel version : 3.0.31-2168382
[email protected] #1
Thu Nov 28 21:02:26 KST 2013
build number : JSS15J.I9300XXUGMK6
IMEI and IMEISV : UNKNOWN
IP address/Bluetooth address : UNAVAILABLE
Serial number : 4df79a99371f11e1
device status : OFFICIAL
i purchased it here in the Philippines.
and my network is globe telecom
I got my phone from the repair shop and i couldn't get any reception. my sim card is just fine, i tried it on another phone and it was working, so i did some research and found out that my IMEI and Baseband were UNKNOWN or NULL. i tried to update the phone thru kies3 and it didn't work after it was updated. what can i do to fix this? what should i do?
PLEASE HELP!!!
read before the thread is closed .
Your question has been posted multiple times . Forum rules require you to search before posting .
Google <<< I9300 your search terms > xda
Please use existing threads to ask .
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
Mod Edit
Please refer to ,and post in the stickies in the General section.
Thread closed
malybru
Forum Moderator