bro this system is a total crap.i had same issues with my 2018 grande infotainment system. i got it replaced under warranty from Toyota rawal motors and after some months same issues have started again.
yesterday i went to sadder Rawalpindi and checked few Chinese good quality units. good quality is for 15500 which i gb ram and 16gb rom an its processor is more advanced and fast other is for 22000 with 2 gb ram and 32 gb rom.
It has no option for sim, inside skype camera and memory card. no remote control as they don 't come with these units. but good thing is these units work with steering buttons. i am thinking to get one which is for 15,500 after checking its sound quality. it's LCD size is 10 inches and comes complete panel as stock LCD is 8 inches.
i have seen these units in few corollas and they work well but interface of OEM unit looks more appealing and good.