- Rework Eligibility & Fault Assessment First classify defects: repairable issues include dust bubbles, minor OCA overflow, misaligned camera cutouts and loose flex connectors. Non-repairable damage includes cracked polarizers, backlight LED strip damage, ITO circuit burns and deep LCD layer scratches. Proper assessment avoids wasting labor on uneconomical rework attempts.
- Step-by-Step Precision Rework Procedure Use controlled 75℃ localized heating to soften OCA adhesive, carefully separate touch layer from LCD with 0.6mm plastic wire, clean residual adhesive with isopropyl alcohol and lint-free cloth. Replace damaged touch layer with ZSDScreen pre-laminated capacitive touch LCD component, use alignment jig for precise positioning, and perform vacuum lamination with adjusted pressure.
- Quality Control & Profit Optimization After rework, run full 24-hour touch test, backlight uniformity check and charging interference verification. Mastering narrow-bezel rework allows repair shops to save 60–70% of part cost compared to full assembly replacement. ZSDScreen supplies individual touch layers, OCA films and flex cables for all common rework scenarios.
