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Frame: Mobile Phone Spares
The frame — also called the mid-frame or chassis — is the structural skeleton of a smartphone. It holds the display assembly on one face, the back cover on the other, and every internal component in position between them. Frame damage from severe drops, bends, or water ingress can misalign components, prevent the display from seating properly, and compromise the device's dust and water resistance.
Materials and Construction
Premium smartphone frames are machined from aluminium alloy — the process Apple uses for iPhone mid-frames and Samsung uses for its Galaxy S series — which combines light weight with rigidity. Mid-range and budget devices use polycarbonate plastic frames, which flex more on impact but do not dent or warp as permanently as metal under extreme force.
The frame integrates mounting points for the motherboard, battery, cameras, and button mechanisms. Many frames include the side-mounted button mechanisms and SIM tray slot as integral components.
When Frame Replacement Is Necessary
A bent frame that prevents the display from lying flat, a frame cracked at a corner that exposes internal components to moisture, or a frame with stripped screw posts that prevent the motherboard from being secured are the most common reasons for replacement. Some technicians can straighten a mildly bent metal frame using a frame press — a faster and cheaper intervention than full replacement.
Nairobi Market
Replacement frames for popular models are stocked primarily by shops serving professional technicians rather than general consumers. Frames for Tecno and Infinix mid-range phones: KES 800 to KES 2,000. Samsung Galaxy A-series mid-frames: KES 2,000 to KES 5,000. iPhone chassis frames: KES 3,500 to KES 10,000 depending on model. Installation is labour-intensive — a full frame swap requires complete disassembly — and labour costs typically match or exceed parts cost.
