The version 1.4 series is particularly effective for older and mid-range MediaTek Vivo models, including: Y12, Y15, Y17, Y19, Y20 (MTK variants). V-Series: V11, V15, and earlier MTK-based V-series models. S-Series: S1 (MTK variant). Usage & Safety
Assists in unlocking or relocking the bootloader for advanced modifications. vivo-mediatek-patch-v1-4-00-002-tool-free-download
Using these tools typically wipes all user data. Always attempt a backup if the device still boots. The version 1