Requesting assistance / guidance on upgrade SXOS

[c_scinfaxi]

Hi. I know SXOS is very user friendly, but i've been looking around for a guide to help me with my current situation, but nothing concrete came up.


What I'm on.

- OFW 6.1
- SXOS 2.2.1
- A NAND backup that was done via SXOS 2.2.1 (full?) that was done without AutoRCM.



What I want to do:
- update the SXOS 2.2.1 to 2.3 without ever going online.
- create EMUNAND on my SD card (because it is a 128GB card and I have around 20+GB left of free space, due to the fact that there are files inside the SD card.


What is the actual proper way to do it? I have games, and other stuffs. Do I have to wipe the card, etc, or anything?
I apologize for the time taken, and I thank you in advance for teaching me.

Thank you.

 

[c_scinfaxi]

Hi! thanks for the prompt reply. Let's see if I get this correct.


Step 1. Grab the latest boot.dat from the website.
Step 2. Reboot RCM with dongle + jig + volume up + power button.
Step 3. In the three menu, go straight to OPTIONS.
Step 4. Create NAND backup. (what if I already have a full backup from before? as in the first time I ran the CFW a few weeks ago?)
Step 5. Create EMUNAND on SD card. (even if there are already files and games loaded)

Is this correct? My question would be step 4 and 5.

Thank you for your assistance again!
Step 5.

 

[c_scinfaxi]

Thank you very much again! Much appreciated!