Mostly people asked the same question about OTG not connected with my m31and m21..so there is a simple way is upgrade the OTG cable version 2.0 to 3.0.. the female portion of the OTG is blue colour in 3.0,this will work with m21 and m31...OTG 3.0
there is two types of OTG ... version 2.0 and higher version 3.0. and above..like samsung m21 and m31 has supported the higher version of OTG...(3.0)...buy this version definitely help you. .
there is two types of OTG ... version 2.0 and higher version 3.0. and above..like samsung m21 and m31 has supported the higher version of OTG...(3.0)...buy this version definitely help you. .
