For step-by-step guides in Russian (as your search term suggests), the most comprehensive technical resource is the . There you can find: Official firmware collections (Bada 1.0, 1.2, and 2.0).
: To flash, you must put the phone into Download Mode by holding Volume Down + Camera + Power simultaneously while the phone is off. samsung wave 8500 skachat proshivku
: Install Samsung USB Drivers or Samsung Kies (though Kies should be closed while using MultiLoader) so your PC recognizes the device. For step-by-step guides in Russian (as your search