My cousin gave me the ZTE Score a couple of days ago. And i've been trying to install some Roms but i get the same message saying "esignature verification fail". And from previous browsing, i know there's supposed to be a selection that says "toggle authentication" or something under the "install from SD" selection, but it doesn't show on mines.

I already have the rom manager, cwm, and i'm rooted.

Am i missing something?

Please help! Thanks.