Remove screen-lock pin protection Oppo F1s A1601

ColorOS is a fork of Google's operating system Android. It is an operating system created by OPPO Electronics (OPPO) of Guangdong, China. ColorOS with some customizations such as gestures for screen off, screen on, communication, a security centre, lock screen magazines, options for long screen shot, eye protection changing to a warmer color temperature, FTP Server and others.

Oppo F1s with A1601 model was used to set a screen-lock protection, then this phone is sold again or some reasons, the owner can't remember how to unlock. You can't make factory reset to clean this screen-lock and this time, you need my service.

We can remove all kinds of screen-lock protection: password lock, pin lock, pattern lock, swipe lock. My work won't affect or make harmful for your Oppo phone and your phone will be cleaned everything with good condition.
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