Some questions about Dorimanx installation guide

[Wulfgar]

Hi everyone, I just purchased an unlocked Galaxy S2 I9100.

The phone came with Ressurection Remix and Siyah kernel, here are the full details:

Model Number
GT-I9100

Android Version
4.1.2

Baseband version
I9100XXLPX

Kernel version
3.0.31-Siyah-s2-v5.0.1+
gm@ubuntu #6
SMP PREEMPT Sun Nov 11 12:25:24 PST 2012

AOKP version
M1

Build number
Resurrection Remix JB v3.1.2 by Westcrip

I want to install latest Dorimax kernel and CyanogenMod 10.1 and I've been reading these guide:

http://androidforums.com/galaxy-s2-...t/482994-rooting-galaxy-s2-dummies-guide.html

http://androidforums.com/galaxy-s2-...804-dorimanx-kernel-ics-jb-dummies-guide.html

Now these questions might seem stupid but I just want to be double sure so I don't brick the phone:

1. How do I back-up the /efs if I don't have an external SD card ?

2. Is a nandroid and Titanium back-up necessary if I don't want to save anything ?
3. The first guide (Rooting Galaxy S2 for dummies) uses Odin (latest version: 3.07) to change the kernel, can I use that for Dorimanx (since I don't have an external SD card) ?
4. How do I install GS2Wiper if I don't have an external SD card ?

These are my questions for now. Hopefully by this time tomorrow I'll have the phone up and running with the new kernel.
​

 

[ivanv]

You don't need to have an external SD card. I don't have one and it is OK, as long as you have enough space on the internal SD card to copy the relevant zip files. So, you can backup the /efs and then copy the backed up copy somewhere safe (Dropbox, Google Drive etc).

Nandroid backup is always good to have if something happens during the flashing. Titanium backup is not necessary but this means you have to reconfigure wifi, e-mail etc. I did a couple of ROM flashings and did not use Titanium, but then it was a bit annoying to configure again the wireless networks, e-mails etc.

Hope this helps,
Iv