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Downgrading to 4.1.2?

14th February 2014, 07:01 AM   |  #1  
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Hello,

I'm on NA5 rom with Mk6 modem. I want to downgrade to MH4 4.1.2 with MG2 modem.
I would like to know if I do this will I get IMEI issue.

Can somebody tell me is MG2 a EFS V2 modem or EFS V1 modem?
14th February 2014, 11:09 AM   |  #2  
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To my knowledge v2 efs started at EMG4 so you will need a backup of your efs, while it was still v1 to downgrade.

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16th February 2014, 08:55 AM   |  #3  
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Quote:
Originally Posted by Iqbal Ansari

Hello,

I'm on NA5 rom with Mk6 modem. I want to downgrade to MH4 4.1.2 with MG2 modem.
I would like to know if I do this will I get IMEI issue.

Can somebody tell me is MG2 a EFS V2 modem or EFS V1 modem?

From MG4 onwards, EFS V2 modifications came.
From this thread :

Quote:

From July 2013 (XXEMG4) onwards, official Samsung ROMs change the format of your EFS Directory/Partition. Let's say these ROMs change from EFS v1 to EFS v2. Only basebands from July 2013 (MG2) onwards can read EFS v2.

Last edited by mankidavu; 16th February 2014 at 09:06 AM.
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