[Q] HELP I cant install any ROM topic

I tried the installation when CWM mode but it cannot detect the zip file.

I tried to wipe and factory reset still the device cannot detect the ROM file on my SD

I tried this mehtod
Download The Rom and Place it in root of your Storage
Go Into recovery cwm mode
Wipe data
Wipe cache
Wipe dalvik cache
Install zip from sd card
Choose KitCat.zip

when I go to "Install zip from sd card " the message is unknown volume.

I dont know what to do next... I want to flash a ROM but I cannot find any tut about it... help please