(adsbygoogle = window.adsbygoogle || []).push({}); Im downgrading to rebug 4.21, can i just use the 999 downgrader from the XMB then update to 3.55 OFW then to rebug 4.21. Do i do all this in recovery or from XMB? or can someone give me a link to the tutorial.

Np. im not helped you a lot