(adsbygoogle = window.adsbygoogle || []).push({}); on ferrow 4.76 cex should i use 999downgrder or rebug3.55 downgrader and is there anything i need to be careful with

Thread moved to PS3 Mods Questions and Inquiries.

I'd use the Rogero 999 Downgrader as that works with most if not all firmwares on CEX.