How To Install Stock ROM on Eurostar Onyx 2 LTE (Firmware/Unbrick/Unroot)
Guide To Install Official Stock ROM On Eurostar Onyx 2 LTE (Back to stock, Unbrick, Unroot and Fix Bootloop): The available firmware file name is Eurostar_Onyx_2_LTE_MT6735M_V1.0_22092016_6.0 and