ALL MODELS · FIRMWARE SAMSUNG Galaxy A21s

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KitKat(Android 4.4.2)

Jelly Bean(Android 4.1.2)

Jelly Bean(Android 4.2.2)

Q(Android 10)

Marshmallow(Android 6.0.1)

Lollipop(Android 5.1.1)

KitKat(Android 4.4.4)

Jelly Bean(Android 4.2.2)

Nougat(Android 7.1.1)

Lollipop(Android 5.1.1)