Used large-screen mobile phones come from large-screen mobile phones that are scrapped during consumption (not for reuse or remanufacturing of the whole machine), and the screen size is greater than 2.5 inches. The process represented in this dataset is that after entering the dismantling workshop, the used large-screen mobile phone is decomposed using manual and mechanical physical processes to form dismantling products such as materials or parts, and manual disassembly uses manual, pneumatic, and power tools to dismantle all directly removable components or parts (excluding accessories such as chargers, power cables, and headphones).