I have a samsung galaxy s21 (g991b) and updated to the new ui 6.1 and now the touch is unresponsive. The screen works fully on other devices (both g991b and g991u1) but only on ui 6.0 i have tried everything and have had to install the original broken screen to get functionality back. I cant downgrade back to ui 6.0 because the binary was updated to B and the latest ui6.0 is on binary A leading to rev check fail. I cant get twrp installed on there either because i cant find a compatible one so unable to use a custom rom with an older binary. The affected screen is aftermarket but fully functional (on ui6.0 devices) any suggestions other than another new genuine samsung screen that costs more than a second hand device.
