Update.zip Signature Verification Failed

Dec 15, 2013

I'm trying to install the leo multi ROM on my all new Mi Note Pro but each time I've the following error :

Install update.zip failed!
update.zip signature verification failed

I tried with 5.7.31 and also with 5.8.6 but always the same problem.

I already installed the official dev ROM in order to install the leo revcovery.img

I also tried to download again the zip files many times.

Have you an idea to solve this problem please ?

Thanks in advance.