I had to figure this out myself but basically if you bricked (lost access to) your 3ds emuNAND by updating to 11.3-11.5 there are no worries,
you can transfer to b9s and luma CFW much easier than you thought. You might have checked 3ds.guide and thought you had to use a guide for your emunand version but actually you should do the steps in sysNAND. The sysNAND version is 9.0-9.2 with rxtools.
I could paste the text from 3ds.guide to here but that would be unnecessary since there's...
In case someone still uses RxTools and updated to 11.3-11.5 [from experience]
you can transfer to b9s and luma CFW much easier than you thought. You might have checked 3ds.guide and thought you had to use a guide for your emunand version but actually you should do the steps in sysNAND. The sysNAND version is 9.0-9.2 with rxtools.
I could paste the text from 3ds.guide to here but that would be unnecessary since there's...
In case someone still uses RxTools and updated to 11.3-11.5 [from experience]