Why *#2663# not working on my Samsung a11 please i need to update my touch screen

[MangoTango]

Maybe u need to call to samsung careline to check.

[MOD_2]

Dear Members_YjJui7l,

This is moderator from Samsung Members Community,

We would like to advise you request remote service to our Careline,

they can remotely diagnosis your device.

(https://www.samsung.com/my/support/remoteservice/)

Thank you.