Back cover or battery cover blue by Xiaomi Redmi Note 11 4G

Blue back cover for Xiaomi Redmi Note 11 4G / Redmi Note 11S 4G (21091116AG / 2201117SY / 2201117SG)

Replacement back cover for Xiaomi Redmi Note 11 4G and Redmi Note 11S 4G (technical models 21091116AG, 2201117SY, 2201117SG) designed to restore the structural integrity and aesthetics of the device. This blue rear housing allows replacing damaged covers due to impacts, wear or cracks, recovering the original finish and proper sealing of the phone. Manufactured with precise fit to ensure reliable installation, it maintains correct alignment of camera, buttons and connectors. Includes verified compatibility and is suitable for professional workshop use, always recommending a dry test before final sealing.

Specifications
• Material: Polycarbonate
• Color: Blue
• Includes: Camera lens / no adhesives (depending on version)
• Compatibility: Xiaomi Redmi Note 11 4G / Redmi Note 11S 4G
• Technical models: 21091116AG / 2201117SY / 2201117SG
• Part No: —

This spare part restores the original appearance of the device, improving both internal protection and aesthetic perception after repair. Its manufacturing offers proper tolerances for correct assembly, avoiding gaps and ensuring a firm fit. It is a solution aimed at technicians seeking a reliable replacement, with clean finish and precise alignment of all external elements. It facilitates the repair process and helps reduce post-installation issues related to sealing or component fitting.

Installation tips

Disconnect the battery before starting the repair.

Apply moderate heat to remove the old cover safely.

Clean all previous adhesive residues.

Use proper adhesive for correct sealing.

Align the cover before applying pressure.

Maintain uniform pressure for 20–30 minutes after sealing.

Technical table