How does vivo Xplay3S enter the engineering mode? How to change vivo Xplay3S to engineering mode

Source: Internet
Author: User

How does vivo Xplay3S enter the engineering mode?

1) we only need to enter [* #558 #] in the dialing interface of the mobile phone and then enter the vivo Xplay3S project mode just like making a call. (As shown in the following figure)

 


Note: If you do not understand the engineering mode, do not delete files or buttons. Otherwise, your mobile phone may change bricks directly. This is different from restoring factory settings.

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