Try here for the correct file for your blu phone
https://mega.nz/#F!84gVTIxY!B0PVanNo5MbdOTiIO7d2HA!YwIGzZQT
It has been a while since I got mine fixed for the second time. seems to me that the problem occurs when the phone is loaded with to many app's and memory is low. once fixed I suggest...