My phones been acting up. Freezing, temporarily stops responding, ect.
To troubleshoot it i'm going to set it back to stock. I have done a factory reset and cleared the cache. I also flashed it to what I think the stock ROM is.
I think all I must do is boot into recovery mode (PWR + X, then 'search' key) and run update.zip. However it says:
"...Verifying update package...
E:signature verification failed