T53LA2.21 1920X1080_180714.zip Bios bin T53LA2.21_1024X768_180714.zip Bios bin T53LA2.21_1280X1024_180714.zip Bios bin T53LA2.21_1366X768_180714.zip Bios bin T53LA2.21_1440X900_180714.zip Bios bin T53LA2.21_1600X900_180714.zip Bios bin T53LA2.21_1680X1050_180714.zip Bios bin