Hello, so yesterday I tried to flash custom ROM and it worked perfectly. So I decided to try other ROM and after installing it I didn't get any mobile network. I checked my IMEI and it was 000000. Is there any way to set my IMEI back to previous? I have my previous IMEI in the box, I just need to change it back. Phone is Samsung A5 2017 (A520F). Any help will be appreciated.
I might add that I possibly deleted efs or whatever it's called. Downloading currently stock rom from sammobile to try if it works. Also downloades somebody's efs .tar file but can't flash it because I don't have PDA nor EFS option in odin.
Related
Well, after installing the unstable JB 4.3 Vodafone Germany leak from http://forum.xda-developers.com/showthread.php?t=1835931, I've loaded my stock ROM I9300XXEMF6_I9300OJVEMF1_I9300XXEMA5 (4.1.2, Egypt) to PDA on Odin and flashed it. However the variants of Modem and CSC did not change from existing ROM with a change in IMEI.
How can I restore stock values for IMEI, Modem and CSC while I don't have Odin files for Phone (Modem) and CSC.
I9300XXEMF6
I9300OJVEMF1
I9300XXEMA5
Thanks!
Go read the stickies in general, in particular efs 'know this stuff'.
Basically you can't go back to anything earlier than EMGX baseband, flash anything later and your imei should be found again. Or you can restore the efs backup you made before flashing the 4.3
boomboomer said:
Go read the stickies in general, in particular efs 'know this stuff'.
Basically you can't go back to anything earlier than EMGX baseband, flash anything later and your imei should be found again. Or you can restore the efs backup you made before flashing the 4.3
Click to expand...
Click to collapse
So you suggest what to flash to restore the IMEI since I didn't backup EFS? Please refer any guide
Installed back leaked 4.3 ROM and could successfully restore the stock IMEI. I used kTool to backup efs as efs.bin. So I have to wait an official release for my country to be able to flash it without losing IMEI anymore.
the same here
ahmedmelm said:
Installed back leaked 4.3 ROM and could successfully restore the stock IMEI. I used kTool to backup efs as efs.bin. So I have to wait an official release for my country to be able to flash it without losing IMEI anymore.
Click to expand...
Click to collapse
iam facing the same problem
i could not find any way to solve this
i really can keep the rom 4.3 installed
but the phone is very slow
when i press any key to turn on display (not the phone) it can take from 3 to 6 seconeds to open
hope someone help
The stock kernel is very poor, try the liteGX kernel instead.
Same here.....but I've installed the IRISH 4.3 ......there's a silly wake up lag, too .....could I change the CSC to Egypt without root..... wishing that the Egyptian update roll out soooooooooooooooon.
Hello All.
I have a Samsung Galaxy S3 international (GT-I9300 - OS 4.0.4 - I9300DXLE8 baseband) I applied a ROM update (4.2.1) and lost signal. I then flashed again using various ROMS but nothing. I did some research about the EFS folder and using the XXEMG4 modem binary to get the IMEI number back from the generic one but now I cannot connect to any of the mobile carriers that are found. I have to admit, before I discovered the XXEMG4 issue (from a thread here) I did (mistakenly) look in to the EFS folder and I confess I most likely have messed that up and that may be the reason I cannot get a signal any further even though I can get the correct IMEI?
Is there anything I can do which would not involve sending the phone to Samsung? Flashing the stock ROM did not fix it and now, I have found, regardless of what ROM I flash, I must also flash the XXEMG4 modem as well otherwise I just get a generic IMEI number. I blame myself and my own stupidity for not reading more about the EFS system first (and not making a backup either) so I just wanted clarification that there is nothing more I can do.
To summarise:
Updated ROM and lost IMEI (generic)
Did not back up EFS folder
Flashed various ROMS - no service & generic IMEI
Flashed ROM with XXEMG4 modem
Phone IMEI is correct but still no service - emergency calls only
Ariza patch did nothing, factory reset does nothing, stock ROM does nothing.
Many thanks for your time.
Install the patched mg4 modem and all should be fixed
Sent from my iPhone using Tapatalk
Start from beginning flash leaked firmware via odin from sammobile
Then root by cfroot
Install recovery and then flash custom recovery..
Also if u do have a backup of stock with working imei then u cn restore that if u dnt want to do the odin procedure..
Thanks for the replies but I seem to have fixed it.
I restored back to stock ROM, restored EFS Backup using KTools and restarted the phone and all is well.
I am now backing the phone up completely using EFS Pro.
Many thanks.
If you've corrupted files in the efs folder then no, there is nothing you can do yourself. The repair should not be too expensive as no hardware needed replacing.
Edit. You wrote 'didn't backup efs', but now say you've solved it by restoring your backup -which is the whole point of taking a backup before you flash anything.
ianwuk said:
Thanks for the replies but I seem to have fixed it.
I restored back to stock ROM, restored EFS Backup using KTools and restarted the phone and all is well.
I am now backing the phone up completely using EFS Pro.
Many thanks.
Click to expand...
Click to collapse
Where can I download Ktools?
Tidus32x said:
Where can I download Ktools?
Click to expand...
Click to collapse
Via search XDA
Hi guys, my phone (Galaxy S3 i9300 international) was repaired at service centre with z3x box after dirty downgrade from 4.3 t 4.1.2, i lost my IMEI, than when it was fixed, my phone was on 4.1.2, now i cant update my phone to 4.3 because i will get the emergency calls only again, after i tried repairing it and flashing with stock 4.3 rom via Odin but again emergency calls, then it was repaired again and put on 4.1.2 android, but i don't know why can't i upgrade it normaly without getting emergency calls, i tried also backing up .img of my efs partition when it was working, and restoring it on 4.3 but emergency calls was showed again, my imei was not broken, i just got emergency calls, tried flashing the patched MG4 modem but then my imei was null/null and i got it serviced againn. Yyes i have backed up my efs it is working now and i am on 4.1.2
Guys is there any chance for my phone to go on 4.3 after servicing with z3x box, i heard somewhere that i am now stuck on 4.1.2 forever, is that a sad truth?
Update: I can switch on whatever 4.1.2 ROM if it's MG3 or lower (EFS v1), after flashinng i get no network, i run ariza patch and it works, but ariza patch won't work on 4.3 or MG4 newer ROMs.
I also tried zuluman patched kernel and modem, and nope, no results, still no network.
Bump. Help please?
Your issue is the repair made your efs folder incompatible with all newer firmwares, a patched modern AND kernel may enable you to update -from what I've read the two are linked.
Failing that you could wipe the efs folder, flash a blank (someone posted a link the other day) then get a reputable repair to program the imei and serial numbers back on. A lot of repairs seem to fix by downgrading and Ariza, which is no use for efs v2.
There is a thread in general on restoring your imei, but hardware is required.
boomboomer said:
Your issue is the repair made your efs folder incompatible with all newer firmwares, a patched modern AND kernel may enable you to update -from what I've read the two are linked.
Failing that you could wipe the efs folder, flash a blank (someone posted a link the other day) then get a reputable repair to program the imei and serial numbers back on. A lot of repairs seem to fix by downgrading and Ariza, which is no use for efs v2.
There is a thread in general on restoring your imei, but hardware is required.
Click to expand...
Click to collapse
Thanks for the reply, i'll try to mix something up.
Oh, and one more question, does that all mean that i can never be on full stock anymore? I mean having 4.1.2 and normally upgrade to 4.3 with a normal efs update through installation?
With the first option no, you cannot use unpatched firmwares and your efs remains v1.
The second option might work, but depends if a repair can write to v2 efs.
Sent from my GT-I9300 using Tapatalk
greetings, ive read several threads about the IMEI and efs thing but unfortunately i havent found a solution for my problem yet.
I´ve lost my IMEI because i deleted my efs folder from the root folder of my phone (galaxy s3) and i had no backup. Someone restored the IMEI with Zbox or Octopusbox (not sure which one it was) and everything worked fine. So i made an efs backup and flashed Cyanogenmod, but after flashing the Rom my IMEI was lost again (0049...) and the phone couldnt find a network. Restoring the efs backup did not work and so i had to go back to stock and let the guy restore the IMEI again.
And here comes my question: I am currently on stock rom with rooted kernel (havent flashed any rom since the second restore because i dont want to risk losing the IMEI again) and i really like to change the Rom because you know stock rom is kinda bad. Does anyone have a clue what i need to look out for or why my IMEI gets corrupted on flashing another Rom?
What version of firmware did it come back from the repair with?
Usually a poor repair will install an older firmware, with efs v1, as boxes won't work on v2. Trying to update to a newer firmware, v2, will corrupt the imei.
Sent from my GT-I9300 using Tapatalk
boomboomer said:
What version of firmware did it come back from the repair with?
Usually a poor repair will install an older firmware, with efs v1, as boxes won't work on v2. Trying to update to a newer firmware, v2, will corrupt the imei.
Sent from my GT-I9300 using Tapatalk
Click to expand...
Click to collapse
the firmware wasnt changed at all, it was UGMK6 stock with CF-rooted Kernel. the IMEI got restored via samsung tool on my pc and it got connected to the box via UsbOverEthernet client. The console only showed like:
-checking root access
-writing IMEI to phone
-patching modem
-ok
is there a way to check if i have efs v1 or v2?
i need esf file
i flashed stock rom
after flash my imei is gone
i didnt backup my esf
now i have my imei is 3500000000000006
plz help me
its gone now theres no way you can get it back Good Luck M8
Probably you flashed incorrect file/ modem/bootloader. Try flashing same csc firmware the phone came from. If you can't remember it use smartswitch to reinitialize the phone. Good luck.