Finally. It's happened, my friends. All of you with 'unhackable' firmwares, read on.
None of this would have been possible without the great work by DeltaFox and FCA00000!
What you'll need:
-A strong certificate, like the ones that OPDA give out. If you don't already know how, check out my guide HERE on how to get one.
*Please read through the instructions atleast once before starting the procedure*
Download THIS zip file and extract it to your computer. Open the 'HelloOx' folder and sign every sis file within the folder.
1)Install 'HelloOX.1.03.Unsigned' to your phone's internal memory. If you're getting any certificate errors during the installtion it either means that you haven't signed the application or the certificate you used isn't good enough. Remember, OPDA provide the correct certificates.
2)Open HelloOx from your phone's Applications folder
Wait until it tells you that it's finished (takes about 1 minute).
If you wish, you can uninstall HelloOx once it's finished.
That's it. You're done!
If you have a Feature Pack 2 device for example a N96 or N85, you'll need to sign your unsigned applications with the certificate and key files in the archive named 'Leftup_CertKey' which is inside the HelloOx zip that you downloaded.
If you have a preFP2 device like the N95 or N73, you can now enjoy installing unsigned apps without ever having to worry again.