Hi, There are two roms that you need to select when you install it. Check your firmware vision number of your device. If the number include "SD", such as A5-C1-Blackview-SD-Q20160701 then you need the ROM A ROM A download site : https://mega.nz/#!6x8yWahR!KrgzBBxax3a_8BhtTbRPFYpIou6Re0ioX...