Originally Posted by kfirbep
and how i download the drivers?kies will download them when i update?
and where is the checkmark? i cant find it.and samsung kies says that dosnet support software upgrading via kies so how i upgrade to 2.3.5?
i upgraded from froyo to gingerbread 2.3.5 like 6 months ago. it was all done through Kies. mind you, my froyo was rooted and Kies still upgraded it. so the first part, upgrade to 2.3.5, is very official, it HAS to work.
if it doesnt, means u do something wrong there and u have to tell us more details about what actions u perform or samsung doesnt provide upgrade to 2.3.5 in your country, which is kinda weird since they are working towards ICS-4.0 nowadays.
Install Samsung Kies on your computer from samsung.com, it will install the drivers also.
go to Settings - Wireless and Network - USB settings and select Samsung Kies before attaching to computer.
once attached wait for Kies to connect then its kinda easy.
USB Debugging mode u find in Settings-Applications-Development -> u will need it later for root.