VIVO Y28 [PD1403W] PD1403W_EX_B_5.2.13_vivo_mtk_ALPS.KK1.MP1.V2.46_20141107_mtk6582 Vivo Official Firmware [MTK Scatter Flashtool] [DG]
VIVO Y28 [PD1403W] PD1403W EX B 5.2.13 Vivo Official Firmware [OTA SD_UPDATE] [DG]
VIVO Y28 [PD1403W] PD1403W_EX_A_3.6.12_vivo_mtk_ALPS.KK1.MP1.V2.46_20141107_mtk6582 Vivo Official Firmware [MTK Scatter Flashtool] [DG]
VIVO Y28 [PD1403W] PD1403W EX A 3.6.12 Vivo Official Firmware [OTA SD_UPDATE] [DG]