With 4.86 going public a few hours ago, yes, you can spoof or use a proxy to go online. I use SKFU's proxy to take my 4.84 PS3 (with HEN) online. : r/ps3homebrew
PS3 - [GUIDE] How To Set Up PS3 Proxy for OFW 4.82 | PSX-Place
Configuring your PS3 to use a proxy | My Private Network | Global VPN Service Provider