modded console is not an issue, you know?
just update your console, the softmod will still work.
if you have CBHC, you just need to re-install the autoboot setting (by launching the "do not touch me!" and selecting hbl, no need to re do the browser hax).
CBHC/haxchi are not deleted , only the "cbhc autoboot info" is overwritten on EUR console because of the system menu update from 5.5.2E to 5.5.3E.
5.5.3 has the same vulnerabilities than 5.5.2
nothing is patched
every hacks still work
homebrew work
internet work
if you don't want to update, you can still update your game by ... using the program from the thread you just posted in? nnupatcher allows access to eshop/game update with an outdated or spoofed firmware version.
but why would you not want to update? except loving problems by staying on an outdated version, I don't see a reason.
if you "can't" update, because you tried and it failed, you probably still have the URL filtered (DNS, proxy) or the update folder deleted. you need to undo that to update.