I have a I9300 which had its motherboard replaced due to an issue with one of the pieces. When they changed it, it had its signal normally. When I changed the ROM (I didn't made a backup of the EFS folder) I had no service. I took it to repair again and they fixed it. I made a backup of the EFS now, and went to change the ROM again (Omega 50.1) and it lost the service again!!! I tried restoring the EFS but it doesn't work now... What could it be? The APNs are fine and the IMEI is fine as well.
AP: I9300XXEMRG
CP: I9300XXEMG4
CSC: I9300XECEMR5
I've notice that the serial number has a bunch of zeros, but Ariza patch didn't work.
EFS V2 ????
Your question has been posted multiple times . Forum rules require you to search before posting .
Google <<< I9300 your search terms > xda
STICKYS FAQS and GUIDES
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
JJEgan said:
EFS V2 ????
Your question has been posted multiple times . Forum rules require you to search before posting .
Google <<< I9300 your search terms > xda
STICKYS FAQS and GUIDES
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
Click to expand...
Click to collapse
It would of changed from a EFS v1 (XXELCK) to a v2 (XXEMG4), so it shouldn't be an issue. I've read them all multiple times. I'm now reading through all the comments on the Ariza Patch post
Please read the first page of the following thread >>> http://forum.xda-developers.com/galaxy-s3/general/ref-imei-efs-stuff-i9300-including-t2393289
If, after reading that, you still do not know what to do then continue this discussion in that thread as it is dedicated to solving such issues.
Related
Hello!
I'm with CM11 unoffical 4.4.
My modem is XXEMG4 and I would like to go back to I9300XXELL4 now I know that there is a problem with that and that there is some kind of fix but I could not find an answer for it...
all I could find is solution if the IMEI is 0000 or no S/N but that is not the case for me...
Please I would appreciate your help.
TNX!
Your question has been posted multiple times . Forum rules require you to search before posting .
Google <<< I9300 your search terms > xda
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
Hi
I have got a imei number starting with 0049 after flashing a cm rom and after some reserch i find out i need to restore my imei numer to get singal again , because i am really bad with phone i need help , if i didnt backup efs file before how can i get my imei number back , also i habe heard uou can resyore ur imei number by flashing stock rom ,is that true ?
Someone help me please
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
What ^ he said
Thread Closed
A.cid
Forum Moderator
Hey Guys im From Egypt Sorry for bad English
i have s3 work in 4.2.1 and i have Signal and i have back up efs
i say i will make hero and test 4.3 I9300XXUGMJ9 after flash it by odin
i don't have signal although IMEI Right and don't fake
i test ARIZA PATCH and efs back up and many modern but Don't Work
and one can Help me Thanks
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
Hi all,
thank for your support on first.
I possess a mobile coming from China. I wanted to change the ROM to adapt to my native language (french) and since I do not have a network anymore.
I tried the solutions with change of modem unsuccessfully.
I check if my mobile is unlock and it's ok. My IMEI is right and Serial too. I try many solutions..So now here is the informations from *#1234# :
AP : I9300XXEMG4
CP : I9300XXEMG4
CSC : I9300XEFEMG2.
I check on SNDeepInfo for know more info about this and i just see this :
Made in: Korea
Year: 2012
Month: July
Age: 1 year and 6 months
Stolen or lost : NO.
I try the http://forum.xda-developers.com/showthread.php?t=2531221 method with result : IMEI NULL/NULL so that's not work for me.
So what can i do for make restore this phone? Before changing rom, network was good but only with chinese keyboard... I have a Riff Box if it's necessary.
Thank you really much by advance.
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
JJEgan said:
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
Click to expand...
Click to collapse
If i make a new thread, it's because i don't find a solution like i write on the title... I know this question are asked many times but if i don't find a way for repair so i create a new topic.
Can you help me please?
Thank you!
Mod Edit
Please read and post in the stickies in the General section
Thread closed
malybru
Forum Moderator
Hey my s3 (i9300) is experiencing a no network issue my imei and s/n are normal tried restoring efs backup no effect i do have an efs back made by H-tool this happened after updating to 4.3 i lost my network i then went back to 4.1.2 still nothing help would be appreciated
what I've tried so far:
1)Upgrade to 4.3(s4 revolution v12 and mk6 stock) (what caused the issue)
2)Downgrade to 4.1.2 then restore efs backup
3)flash mg4 modem
Thanks in advance
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
Mod Edit
Please read and use the stickies in the General section
Thread closed
malybru
Forum Moderator