iPAQ 5550 rom update mode

Hi guys, does anyone know how to get the 5550 into rom update mode? i've searched high and lo on google but was only able to find out how to do it on the old ipaq' ( buttons 2,3, power and reset)

[Stevie]

All you have to do is go onto HP web site and download the ROM upgrade and it will automatically do it for you. I think it is power button and soft reset to get into the manual update mode but follow HP instructions.