Thanks for quick reply.

I am about to follow your step by step guide to upgrade to PR1.2 and trying to decide which one to flash. BTW, your guide is very detail, thanks for the work. The most I gathered so far, there is apparently little differece between the two, some with wifi channels and some with FM transmittence, which I think is minor other than the language pack and settings etc.

I mistaken OS/FW with kernel image . OS/FW what one sees in the about product, 3.2010.02-8 or maemo 5 or Fremantle, while kernel is really what I meant, the RX-51_2009SE....COMBINED_MR0_ARM.bin


Edit: According to wiki, firmware image or firmware is the RX-51...., OS is Fremantle. Whatever, I am confused


Thanks again,

bun