Instructions to delete a language to Cubot devices

Cubot X11 Cubot X11
Cubot X12 Cubot X12
Cubot X15 Cubot X15
Cubot H1 Cubot H1
Cubot P11 Cubot P11
Cubot X16 Cubot X16
Cubot X17 Cubot X17
Cubot P12 Cubot P12
Cubot S600 Cubot S600
Cubot Note S Cubot Note S
Cubot S550 Cubot S550
Cubot S550 Pro Cubot S550 Pro
Cubot Z100 Cubot Z100
Cubot CheetahPhone Cubot CheetahPhone
Cubot S500 Cubot S500
Cubot H2 Cubot H2
Cubot X17 S Cubot X17 S
Cubot Dinosaur Cubot Dinosaur
Cubot Rainbow Cubot Rainbow
Cubot X16 S Cubot X16 S