Noob trying to go back to Stock (i337m with Rogers)

Hi earlier I try to install this firmware (I337MVLUAMDJ_I337MOYAAMDJ_RWC.zip) but was very buggy. Wi-fi not working, network crashing. I was able to install custom ROM but I had the same problems plus sound not working.

I've downloader this one too. ALL_ATT_I337UCUFNB1_I337ATTFNB1_505595_REV06_user_ low_ship_MULTI_CERT.tar

Should I try it or try another one?