Pc Suite Doesn't Recognise My Devive

Mar 7, 2015
Please Help: Mi2S - sMIUI 5.6.25 (lollipop)
Using a laptop with Windows XP, Mi PC Suite doesn't recognise my Mi2s WHEN IN FASTBOOT. If it's turned on, I have no problem. I Have also Installed Mi Flash: it recognise my Mi2S on fastboot; so I think it's a problem of mi Pc Suite and not a problem of drivers (because Mi Flash has them).
When I link the device via USB in fastboot, the hardware "Android Bootloader Interface" appears.
What Have I to do?