problem-password
model-y91 (1811)
procedure
1.open Unlocktool
2.click vivo tab
3.search vivo y91 1811
4.baklas unit tanggal battery
5.testpoint tapos saksak usb
6.click format data
NOTEag nag fail wipe data yung cp reboot nyo lang okay na yan tapos matagal mag logo yan hayaan nyo lang
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