[Galaxy S III I9305 (4G LTE + 2GB RAM) Q&A, Help & ] newsboost:
Hi all,

I have a few small concerns about "[IMPORTANT][GUIDE] What to do after you have bought your Galaxy S3 4G GT-I9305?" - http://xdaforums.com/showthread.php?t=1967124

I've now rooted my phone and done almost everything exactly as instructed (I also fell into the boot-recovery.p in system folder-trap, but got up again). I finished doing steps 1-5 including Nandroid backup from CWM recovery. Am now back at step 6: "Remember where you left off in 2nd step above? Well now you can go back and complete the partition backup of the efs folders. You should be left with 4 backup files for this final section of the backup process". This I don't fully understand.... I understand that I need to go back to this page: http://xdaforums.com/showpost.php?p=33048706&postcount=1

And what I previously did at step 2 is the 3 headlines shown below with *....*. What I didn't do at step 2 is (---*....*---) below:

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*Setting up QPST with your PC:*

*Backing Up IMEI / NV Data:*

(---*Restoring IMEI / NV Data:*---)

*Restore USB Settings after Backup / Restore:*

(---*Recovering IMEI And Data Connection After Flashing WRONG Root Package Intended For I9300:*---)

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I don't really see any headlines regarding "partition backup of the efs folders"? But in the top it says: "Click HERE for information on the long awaited and all new EFS Professional v2.0 including download! Now supporting Qualcomm devices!". I downloaded this program, ran it but am a bit confused about all these settings and options in these programs. I'm also confused because I think that the "[IMPORTANT][GUIDE] What to do after you have bought your Galaxy S3 4G GT-I9305?" is a bit unclear here. I think it's unclear how I exactly get these 4 backup files aka "partition backup of the efs folders". I've tried to search the forum for instructions and it seems like I can do:

1) Download ktool app to phone - http://xdaforums.com/showthread.php?t=1314719

2a) Install terminal emulator and issue the command: "dd if=/dev/block/mmcblk0p3 of=/storage/extSdCard/efs.img bs=4096" - http://xdaforums.com/showthread.php?t=2269318

2b) Similar method, I think - with busybox and a few other commands: http://xdaforums.com/showthread.php?t=1089039

3) Just copy/paste the /efs folder - http://xdaforums.com/showthread.php?t=2369049

4) Use efs backup windows program - http://xdaforums.com/showthread.php?t=1673059

Question 1: Are there other methods?

Question 2: Are any of these methods better or worser than the other methods? Consider the worst-possible cases, i.e. a some time the phone gets bricked. I suppose using a phone app for trying to restore /efs isn't a good strategy if you cannot even boot the phone?

Question 3: Do all backup /efs-folder applications do the same thing, only copy /efs so I don't need to use "multiple strategies" / "multiple methods"?

Question 4: Do you recommend something, e.g. using multiple of the methods above ("multiple strategies")?

I just would like to ask, because I think the "[IMPORTANT][GUIDE] What to do after you have bought your Galaxy S3 4G GT-I9305" is a bit unclear here and right now I don't really know what exactly to do. I think I'll go for method 3 above if all methods are equally appropriate...? I've never tried to restore /efs and hope I'll never have to do it...