I have galaxy S21(snapdragon)i recently got one.ui 6.1 update.after the update my screen touch is not working. I have used the phone with a mouse via OTG.I waited 2 days and did everything like restart, reboot, factory reset,but it didn't work. So i ...

I got one 6.1 upgrade on my Samsung S21last day. Since update the touchscreen it'snot working at all. I have to work with my phone with a mouse connected with it. The touch on screen is not working at all