Help Xiaomo Redmi Note

Jul 8, 2015
hi all, sorry for my english i'm italian but i need help!
i tryed update my redmi note but every time i flash my ron with trwp i have this error: md5 file not found.. i cant update it, i dont know how do

E:ZIP signature verification failed:1
error flashing zip '/sdcard/miu_ITA_1csh92_wet_jb9_5....
checking for md5 file...
skipping md5 check:no MD5 file found

can anynone help me?