Update has stopped the touch screen from working on 3 separate A53's

[Members_VZmeIMy]

I have had 3 Samsung A53's install updates in the last 5 days and after the updates all 3 touch screens on the phones have then not worked at all!!! Cannot turn the phone on or off, cannot go to settings, nothing at all. How does this happen and how can it be fixed?  So far, not impressed with Samsung for allowing their own updates to ruin their phones. Surely I don't have to wait until their next update to sort the problem?  So far, no-one can help fix this!

[AndrewL]

@Members_VZmeIMy: I'm unaware of any wider issues that have caused the touch screen of Galaxy A53 devices to become unresponsive following an official update. Were the updates carried out over Wi-Fi in Settings > Software update? If so, were all 3 phones on the official software prior to installing the update? 

[andrzejgil]

I had the same problem on my daughter's A53 5G. The display was broken so I replaced it with this replacemant display: https://www.amazon.de/dp/B08KQ433B4?psc=1&ref=ppx_yo2ov_dt_b_product_details and then I updated android to the nnewest one with One UI 6.0. Immediately after updte the touch screen stoped working.

I tried different things, nothng worked, and finaly I had to revert to the previous Android version using odin software and downloaded firmware from https://samfw.com/ 

As the touch screen was not working I had to use usb mouse and keyboard (Logitech, paired with a dongle in advance on a Windows PC) and attached to my phone using a USB connector (USB C to A). I also used Windows Link App to control the phone from Windows on my PC. 
Odin Software worked only when I restarted the phone in Download mode.

I did a full backup (using Mouse and keyboard first) to a Samsung Account and after flashing older Android I restored everythng from this backup.