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Flash CM over MJ9

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Junior Member - OP
Thanks Meter 0
Posts: 5
Join Date: Nov 2013
Default Flash CM over MJ9

Like many, I am extremely disappointed with Samsung's attempt to bring 4.3 to the S3 and am on the verge of switching to CM 10.2 from a stock ROM. The ROM is rooted with a yank555 kernel and philZ recovery.

However, upon reading this forum; and several others like it, I realised I may or may not run into an EFS or no network issue. I have the stable 10.2 and 4.3 Gapps ready to install via ROM Installer.

Is it only if the android version is downgraded that any form of EFS error could occur? As 10.2 is based off 4.3, I thought it would work fine and flash as it did when I ran stock 4.1.2 but wanted to double check.

Thanks for your time.
Senior Member
Thanks Meter 4,420
Posts: 23,043
Join Date: Oct 2010

Network IMEI EFS

Downgrade and network problems .

EFS error any flash of any firmware may give error .
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