(Reading time: 2 - 3 minutes)

OPPO N1 hard reset: press volume DOWN + ...

(Reading time: 2 - 3 minutes)

OPPO R9s Plus hard reset: press volume DOWN + ...

(Reading time: 2 - 3 minutes)

OPPO N3 hard reset: press volume DOWN + ...

(Reading time: 2 - 3 minutes)

OPPO A57 hard reset: press volume DOWN + ...

(Reading time: 2 - 3 minutes)

OPPO R7 hard reset: press volume DOWN + ...

(Reading time: 2 - 3 minutes)

OPPO R7s hard reset: press volume DOWN + ...

(Reading time: 2 - 3 minutes)

OPPO R7 Plus hard reset: press volume DOWN + ...

(Reading time: 2 - 3 minutes)

OPPO F1 hard reset: press volume DOWN + ...

(Reading time: 2 - 3 minutes)

OPPO F1 Plus hard reset: press volume DOWN + ...

(Reading time: 2 - 3 minutes)

OPPO F1s hard reset: press volume DOWN + ...

(Reading time: 2 - 3 minutes)

OPPO A39 hard reset: press volume DOWN + ...

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