Model: P4-1   Model: P4-2

How to remove the P4 official back part of the head pad Remove the official face interface on PICO4; According to the picture, carefully remove the official top soft strap on PICO4;  According to the illustration, use a crowbar to carefully pry open the connection gap between the back pad of PICO4 and the back …

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Shaking: When the P4 has sufficient battery power and the battery is removed, only the original battery is used, resulting in a lighter weight. This is a normal occurrence inherent to the product design.