I understand, this must be very frustrating... You will not be able to "upgrade" unless you downgrade to 3.55 first because of that "9.99"
You have 2 options, successfully downgrade to 3.55 and re-upgrade to 4.86.1 LITE.
Rebug Toolbox will work on your PS3 if you can manage to get rid of Ferrox. (Because my friend had the same kind of problems with it)
The other option is simple... just do the spoof. Use custom spoof to set yourself to 4.86, disable syscalls and log on.
I could be wrong about 4.82 CEX, it might be able to go online BUT IT HAS TO BE PROPERLY SPOOFED.
I was only trying to give you the best results, thank you for taking the time to listen. You will figure it out...
If speaking in your language would make this any easier, then speak your language but remember to include an english translation, please.
Watch the vid, you don't have to watch the beginning, fast-forward to 2:50, that's what you need. (Use SEN Enabler 6.2.6)