Di makaya sa unlocktool, kelangan pa testpoint kasi new sec patch. Dito ka sa mrt. Select vivo section, y91c, choose format unlock, start at salpak. After magreboot may frp pa, same method parin pero erase frp na piliin mo. Pero sa latest patch, hindi matanggal ni mrt ang frp. Kaya gamitan na ng tricks.
https://www.youtube.com/watch?v=NSpa5kC2pvg
https://www.youtube.com/watch?v=NSpa5kC2pvg
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