keyboard and voice issue

[rk9493]

Hello.
          My galaxy m20 perform better before pie update but after update there are some issue in voice at calling time .voice decrease during calls and do not sound properly...

Keyboard also irritate me.. some times its hang


Solve my problem 

[rk9493]

i think to buy this phone my first and last mistake 🤣🤣

[simran26]

update it

[rk9493]

how ......