it's kinda like 1AM , my review :
love the UI, love Walkman, nice job :)
but i'm verry slow, after reboot i have only 450 MB of Free memory. and Xperia Keyboard isn't installed :)
how to install it?
if i backup all my apps with the backup tool of Xiaomi, can i restore it? and for the data of apps? (accounts, saves of games, etc...)
is there French language?
when you select the .zip to flash, you can select what you want to flash, there is a "recovery" option (if i remember well) 'cuz on my old Micromax A110 i could select only recovery flash
try to install the drivers, then use SP.
i had the same problem with another phone (micromax A110) : the PC couldn't identify my phone, i installed the drivers and everything became OK :)
try to check if you can go in the stock recovery and flash Stock ROM.
if you can't, use SP Flash Tool : http://xiaomi.eu/community/threads/restore-stock-firmware-and-lost-imei-baseband-by-spflash-tool.23188/