Download latest Android 4.4 Kitkat stock firmware for ZTE V5 Red Bull V9180 smartphone from here or from here. Download the ADB upgrade image pack from here or here.
Archive name: ZTE_V9180_4.4_Dual_SIM_X9180_Lang_P_N_T / zte-v5-线刷包
Firmware: Android KitKat 4.4.2
Archive file size: 661 MB / 429
Platform: Qualcomm Snapdragon 400 MSM8926
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