India, Jan. 22 -- By 2026, smartphones have become highly sophisticated, featuring delicate acoustic membranes and chemical coatings that can be easily ruined by traditional cleaning methods. To keep your device hygienic without voiding your warranty, follow this manufacturer-approved "Bulletproof" cleaning protocol.

Before you begin, realise that using the wrong chemical can trigger your phone's Liquid Contact Indicator (LCI), a tiny sticker inside the SIM tray that turns red when exposed to moisture. This instantly voids your warranty.

NEVER use: Bleach, Ammonia, Vinegar, or Hand Sanitiser

NEVER use: Compressed air on speaker grilles; it can rupture internal waterproof seals

NEVER spray: Any liquid directly onto the screen or into p...