Please tell me the EFS Version of my phone.
Mobile: Samsung Galaxy SIII GT-9300 INS
Android version: 4.1.2
Baseband: I9300DDEMG2
Build Number: JZ054K.I9300XXEMH4
Can I downgrade from 4.3 to 4.1.2 without any network and/or IMEI and/or Serial Number issue? Please please.
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It is GT-I9300 not GT-9300. Sorry.
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Yes i think u can
Ver3go said:
Yes i think u can
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Are you sure? I need to confirm it before flashing 4.3.
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Do it
Enviado do meu GT-I9300 através de Tapatalk
But is my efs v2 or not?
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If you backup EFS before the upgrade doesn't it mean that you can always restore to where you are now ?
I think TWRP recovery has an option to include EFS as part of nandroid backup
The problem is even if you backup and restore your efs backup, your modem may not be able to read it and as a result you won't have any network on your phone.
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so is efs v2, you should not have problems if you want to downgrade from 4.3 to 4.1.2 if you keep mg4 + modem. however, have a copy of your efs folder
Related
Hi there, I flashed the newest stock firmware with odin XXBLH1 about 1 hour ago. Everything seem fine but my phone cant detect signal ( I cant recieve and make calls) Im live in Hungary and Im vodafone user pls help me Thanks.
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I suggest you flash another modem if that doesnt fix it, then you must contact your network service provider
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Smells like efs problem. Have you got a backup? Or a efs backup?
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saywhatt said:
I suggest you flash another modem if that doesnt fix it, then you must contact your network service provider
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How can I flash another modem?
NatTheCat said:
Smells like efs problem. Have you got a backup? Or a efs backup?
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I dont have backup, and I cant change my CSC.
Pls help
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Check IMEI is the same as under the battery .
Check Mobile network settings are correct .
Try a different Modem from the modem thread found via INDEX .
Restore phone to original firmware .
jje
skrillex13 said:
How can I flash another modem?
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http://forum.xda-developers.com/showthread.php?p=28033515#post28033515
I m owning I9300 in India..
Build number- IMM76D. I9300XXBLH1
Baseband- I9300DDLH1
Android 4.04..
Can anyone please help me to download this rom.. I want to root my phone so I want to keep this as a backup..
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Use CHECKFUS to download firmware .
jje
Dont need to backup rom, via toolkit you will root phone very safe so dont be scared and dont think about
BUT in cas you can use checkfuse as jje said
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go http://sammobile.com/firmware and search 9300
then look your country
Thanks..
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Ive flashed many different ROMs .. AOSP and stock based and it still refuses to work .. Currently im running omega rom v43.9-xxemg5
Follow link in sig to sticky roll-up thread. Read imei / efs
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rootSU said:
Follow link in sig to sticky roll-up thread. Read imei / efs
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My IMEI is there actually! Could flashing stock ROM or flashing a different baseband make mobile data work? If so what baseband is suitable with egypt or ROM.. Or can anything work?
You can only use mg2 or mg4 baseband now. If you're using one of those and imei is correct everything should be fine.
Check your apn settings
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rootSU said:
You can only use mg2 or mg4 baseband now. If you're using one of those and imei is correct everything should be fine.
Check your apn settings
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Im using MG2 .. Calls and SMS are working only mobile data isnt
What do i do in APN?
Compare your settings to your carrier website
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rootSU said:
Compare your settings to your carrier website
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Nvm I put the carrier access points .. Provlem solved .. Thank you!
Hi
I am using omega 4.2.2 latest built. The phone gets stuck/hanged whenever I connect mobile data. Sometimes it works fine but stucks when I use twitter or Facebook app.
Why is that so?
And can I downgrade to omega 4.1.2 ?
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Try a different baseband
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Don't know much about the basebands. I think every rom has a different baseband. So you mean try some other rom ? Stock or custom ?
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Alright did some research and yes I got the idea. Its baseband problem. I am gona try XXEMC6.
But can I downdowngrade from jb 4.2.2 to jb 4.1.2 after a full wipe?
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Why are you downgrading the rom? I said try another baseband. Not try another rom.
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Because I cannot find any other than XXUFME7 baseband for jb 4.2.2
I thought it came with only one baseband.
I checked wanamlite and omega. They both come up with XXUFME7.
Can you recommend some roms ?
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hero420 said:
Because I cannot find any other than XXUFME7 baseband for jb 4.2.2
I thought it came with only one baseband.
I checked wanamlite and omega. They both come up with XXUFME7.
Can you recommend some roms ?
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My point is you can use ANY baseband. It is not tied or related to the ROM in any way. There's hundreds of basebands available to flash in the general forum.
Now you are making sense. So I had to install the rom first or the baseband first then any rom?
Baseband and a kernel is the same thing ?
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hero420 said:
Now you are making sense. So I had to install the rom first or the baseband first then any rom?
Baseband and a kernel is the same thing ?
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Please follow the link in my signature to general > sticky roll-up thread. Read "Understanding the basics before rooting". I put a lot of effort into answering all your questions in advance there. Please read it, you'll find it very informative.
Changed my kernal using omega v47
No freezes anymore. The 4.2.2 kernal is so unstable.
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I was using ultima rom running 4.1.2 before and flashed cynogenmod 4.2.2 following all necessary steps but after that my phones signals are gone , wrong imei etc. After that I flashed 2 or 3 more roms but same problem on all. How to I solve it I tried backing up EFS folder and restored it but didn't work out!!!! anyone help me out???????
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ashutoshsinghy2k said:
I was using ultima rom running 4.1.2 before and flashed cynogenmod 4.2.2 following all necessary steps but after that my phones signals are gone , wrong imei etc. After that I flashed 2 or 3 more roms but same problem on all. How to I solve it I tried backing up EFS folder and restored it but didn't work out!!!! anyone help me out???????
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http://forum.xda-developers.com/showthread.php?t=2393289