Hi all, I know that i have to backup my EFS in order to change ROM's (I already have it backed up), but my question is, will efs folder be corrupt if i change only 4.1.2 ROM's, or is it just due to downgrade from 4.3 to 4.x.x.
I had my phone service twice because my efs was corrupt, and yes, i have restored my valid and good efs, when the signal was working, but it didn't help.
So I am just asking will i break my efs with changing from for ex. stock 4.1.2 to some custom 4.1.2 rom?
Also, I can't backup my efs via EFS professional, it cannot create the final step creating .tar file, I did efs backup with k-tool but when i restored my valid efs it was also no signal problem. Everything went good with backing up to PC.
Yes, I read other threads, but I am just asking for a direct opinion.
Thx in front.
Direct opinion is read the efs 'know this stuff' sticky -tells you everything you need to know.
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boomboomer said:
Direct opinion is read the efs 'know this stuff' sticky -tells you everything you need to know.
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Ok, so, if I am on XXEMG4 firmware i must stick to MG based basebands/firmwares in order for my efs to work, right?
XXEMG4 or later, any baseband/firmware after this will work with efs v2
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boomboomer said:
XXEMG4 or later, any baseband/firmware after this will work with efs v2
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Thank You!
Related
Hello to all,
i have problem of heating and i want to flash a specific modem that seems to be perfect combo with my operator in my country but i have flashed latest omega.
Now i have DDEMG2 modem and XXEMG5 build.
I have read about EFS problems so, before flashing these new types of firmware i have hade a backup of my EFS with EFS_Professional_2.0.62 so i know that i can downgrade modem having my actual rom but.... HOW?
I don't want have any type of poblem so i'm asking for a simple "how to" to make all procedure correctly.
I need to downgrade since i have problem of heating under 3g connection and seems that with specific modem my situation in this sense will be better.
Can anyone help me?
Turn off 3g from build prop.
For downgrading u cn reflash ur current rom
Or its lower or base version.
Post d results.
Hit thanks if I helped u..
A click for u but rep for me.
Sent from my LT26i using xda premium
ADDICT.ANK said:
Turn off 3g from build prop.
For downgrading u cn reflash ur current rom
Or its lower or base version.
Post d results.
Hit thanks if I helped u..
A click for u but rep for me.
Sent from my LT26i using xda premium
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Click to collapse
Sorry i haven't understand.
I want only flash a different modem. How can I do it without problems on efs folder?
What about 3g and build.prop?
From universe with my gs3
U would probably hv toggle for2g n 3g
Leave d build prop fr later.
Extract modem file from the rom package i.e. Tar.
And add in the rom u wnt to
Hit thanks if I helped u..
A click for u but rep for me.
Sent from my LT26i using xda premium
Modem flash should not damage EFS .
jje
JJEgan said:
Modem flash should not damage EFS .
jje
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Probably should not but dont take the risk backup your data and rom
and imp especially imei and simlock backup ur efs....As it can come handy anytime......just to get out from debranding o losing ur imei....
Checkout the thread and backup ur imei efs data first.....
http://forum.xda-developers.com/showthread.php?t=2145464
ADDICT.ANK said:
Probably should not but dont take the risk backup your data and rom
and imp especially imei and simlock backup ur efs....As it can come handy anytime......just to get out from debranding o losing ur imei....
Checkout the thread and backup ur imei efs data first.....
http://forum.xda-developers.com/showthread.php?t=2145464
Click to expand...
Click to collapse
Preaching to the choir there.... JJE knows full well about EFS backups. He and I answer 10 threads a day on this subject.
Thats why I wrote the thread in my signature
rootSU said:
Preaching to the choir there.... JJE knows full well about EFS backups. He and I answer 10 threads a day on this subject.
Thats why I wrote the thread in my signature
Click to expand...
Click to collapse
So in order to flash my preferite modem without problem I have to
-restore backup of efs before the new format
-flash my preferite modem
Right?
From universe with my gs3
Is your efs in new format? Mg4 is but mg5 is older changelog so not sure that it changes format
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rootSU said:
Is your efs in new format? Mg4 is but mg5 is older changelog so not sure that it changes format
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Now I'm on mg5 but I have also flashed before mg4.
How we can check the format?
From universe with my gs3
If you went from mg4 to mg5 without restoring efs, it should be same format for both. So yes, flash your modem of choice and restore pre mg4 efs backup
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rootSU said:
If you went from mg4 to mg5 without restoring efs, it should be same format for both. So yes, flash your modem of choice and restore pre mg4 efs backup
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So i have to go in recovery then flash modem then flash efs backup before reboot?
If somenthing goes wrong....i can restore original no rooted and stock firmware and start with a "new" phone?
rootSU said:
Preaching to the choir there.... JJE knows full well about EFS backups. He and I answer 10 threads a day on this subject.
Thats why I wrote the thread in my signature
Click to expand...
Click to collapse
NOT PREACHING
just helping gave the thread in order too avoid confusion
And about flashing yes....but u'll not lose ur imp stuff i.e. imei...u'll be in stock but do backup your efs pls
Nice working with you though...
keep posted
So what I have to do guys?
From universe with my gs3
A solution
mattiadj said:
So what I have to do guys?
From universe with my gs3
Click to expand...
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Made a backup of ur imei ??
If then proceed
Flash the modem of our choice and restore or flash ur efs backup before rebooting....
and damn ur done.... :highfive: :victory:
And post the results here pls they worth a lot... :good:
ADDICT.ANK said:
Made a backup of ur imei ??
If then proceed
Flash the modem of our choice and restore or flash ur efs backup before rebooting....
and damn ur done.... :highfive: :victory:
And post the results here pls they worth a lot... :good:
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Click to collapse
I have a backup of the situation before the change of efs folder. I have to restore it after flashing modem?
From universe with my gs3
mattiadj said:
I have a backup of the situation before the change of efs folder. I have to restore it after flashing modem?
From universe with my gs3
Click to expand...
Click to collapse
Great good luck and proceed
And keep posted
:highfive:
Does ne1 know why i keep losing my IMEI everytime i flash the I9300XXUFME7_I9300OXAFME7_OXA rom. i've used this test firmware before and everything was ok and then i went to an official rom. But when i reflashed this rom, I keep getting 004999010640000 / 01 on my IMEI.
Follow link to sticky roll-up in my signature. Read the imei / efs thread
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I have the exact problem, and am stuck with omega 4.1.2 for weeks now !
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See above
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okizen said:
Does ne1 know why i keep losing my IMEI everytime i flash the I9300XXUFME7_I9300OXAFME7_OXA rom. i've used this test firmware before and everything was ok and then i went to an official rom. But when i reflashed this rom, I keep getting 004999010640000 / 01 on my IMEI.
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Asseel said:
I have the exact problem, and am stuck with omega 4.1.2 for weeks now !
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This is from the Omega thread OP..
1. Make sure to make and keep in a safe place an efs backup - nadroid backup - titanium backup - etc, in case you ever need to restore!
2. With the new firmware from Samsung for the S3 they have changed some security code that will disable the use of older modems, the new update changes the EFS partition which makes it impossible for an older modem being use without upsetting your IMEI (No Phone Signal), please make sure you do have a backup of your EFS in a safe place before you flash to the latest Omega ROM.
This is what Samsung has done, and it seems that its being done to all the new Modems on all the high end devices.
More info
3. Flash with No Full Wipe only from v43.x and previous Omega 4.1.2 versions - if
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Hi
Just wondered about this efs and imei trouble, does this concern all newer (or older) roms? I've got ultimarom v12 on my international s3 going good, but wonder about changing to the newest ultimarom but then I read about problems with imei.
Is this something new you have to do with all roms now?
Frode
EFS and IMEI problems since day one especially for noobs who have not read the basic faqs and guides and have no EFS backup .
Current released firmware Samsung have changed the EFS Folder .
http://forum.xda-developers.com/showthread.php?t=2377731
jje
I have rooted and installed ultimarom without any problems. was I just lucky then? Do you have to take backup of efs folder every time? It's not good enough with backup of rom when you flash a new rom?
Frode
molland said:
I have rooted and installed ultimarom without any problems. was I just lucky then? Do you have to take backup of efs folder every time? It's not good enough with backup of rom when you flash a new rom?
Frode
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Click to collapse
As written in the guides, you should make a backup of your efs at the very beginning one time and keep it somewhere safe. Without imei and efs backup otherwise you have to go back to Samsung...
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ok, but since its working now, can I take a backup now of the efs folder for later use?
Frode
molland said:
ok, but since its working now, can I take a backup now of the efs folder for later use?
Frode
Click to expand...
Click to collapse
Save a backup. When creating other backups though....skip efs
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molland said:
ok, but since its working now, can I take a backup now of the efs folder for later use?
Frode
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Click to collapse
Yes !!!
sent from the state where marijuana is NOT illegal !
@kangerX Thats an answer I like
Can I use a tool like one of these : http://forum.xda-developers.com/showthread.php?t=1901098 or : efs pro 1.9.12 to take a backup with?
Frode
used Ktool now and took a backup of efs, now I've got to files, one img and one tar file, copy to my pc og cloud storage
hello, everyone.
I was on 4.3(Jelly Bean) and somehow I've got a virus so I though I will re-flash it and start from fresh.
I used Odin3 v3.04 and flash it to 4.0.4(I9300XXALE8_I9300OXAALE8_BTU) and then my imei number has been changed to 0049....
I have tried few guides online still the same.
I did not backup my efs so I don't have any backups, can any one please help.
thank you.
Flash 4.3, your efs is incompatible with such an old firmware.
boomboomer said:
Flash 4.3, your efs is incompatible with such an old firmware.
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thank you for the quick reply and your help, the problem is fixed
Look here
http://forum.xda-developers.com/showthread.php?t=1918601
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Im coming from 4.1.2 stock rom XXEMA2. This is my first time moving into 4.3. I heard of the issues "no signal" or "IMEI Corrupted" and "sim card not detected". In my case, can someone provide me the instructions in installing your amazing rom safely? Thanks!
Follow the installation guide by your rom chef, backup your efs first.
Problems with imei relate to damage caused to the efs folder, only you know the history of your phone so it's a chance you must decide.
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boomboomer said:
Follow the installation guide by your rom chef, backup your efs first.
Problems with imei relate to damage caused to the efs folder, only you know the history of your phone so it's a chance you must decide.
Sent from my GT-I9300 using Tapatalk
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He said to download the latest modem to prevent the no signal problem. All I can find in the general thread is the modems of 4.1.2 I cant seem to find the modem of 4.3. Is it the same as the EFS V2? Will someone provide me a link? Thanks !!!
xKarlo said:
He said to download the latest modem to prevent the no signal problem. All I can find in the general thread is the modems of 4.1.2 I cant seem to find the modem of 4.3. Is it the same as the EFS V2? Will someone provide me a link? Thanks !!!
Click to expand...
Click to collapse
Look in this thread >> http://forum.xda-developers.com/galaxy-s3/general/rom-sammys-4-3-btu-deodexed-rooted-t2569180 << of JustArchi there is a link to a 4.3 modem EFS V2 although it is not the latest one
BACK UP YOUR EFS!
I was coming from s3 ICS.. and I upgraded to this ROM.. and I lost by Baseband and IMEI.. and now im stuck searching the whole of www for solutions
plz help me anyone
Most likely is your efs folder is corrupt and cannot be updated to v2. Take it to a repair centre.
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