well, i did. v630 is a branded k610 firmware.
they all work, but there are problems with w660. you aren't able to use the walkman player or play any music files if you don't have an application like face warp opened to use the camera. you could also delete the camera drivers.
i didn't tried to flash it to k530. i heard that this way, you don't loose anything, you only gain. i'll wait to get my download privileges so i can download k530 firmware.
i'll get back with new informations as soon as possible
goodbye




