Originally Posted by stuartj9
So, install the QA toggle and then upgrade as normal i.e. on a USB and through the XMB?
make sure the qa toggle worked with the button combo (go to network settings and press L1L2 R1R2 L3 and down on D-pad) if three extra menu appear it has worked. If not toggle again and try the button combo again. After that you need to install 3.55 ofw via recovery. Once that has completed install 4.3 v2.05 via xmb