# Ender3 4.2.7 board + BLTouch + TouchScreen (Screen unresponsive) **URL:** \ **Category:** Support\ **Created:** [21 February 2024 19:29 UTC](https://marlin.crc.id.au/forum/t/ender3-4-2-7-board-bltouch-touchscreen-screen-unresponsive/2076 "2024-02-21T19:29:53Z")\ **Posts on this page:** 1\ **Showing post:** 5
**Author:** ![CRCinAU](https://marlin.crc.id.au/forum/user_avatar/marlin.crc.id.au/crcinau/32/1337_2.png) [@CRCinAU](https://marlin.crc.id.au/forum/u/CRCinAU)\ **Post date:** [22 February 2024 01:36 UTC](https://marlin.crc.id.au/forum/t/ender3-4-2-7-board-bltouch-touchscreen-screen-unresponsive/2076/5 "2024-02-22T01:36:37Z")
DWIN isn’t a touchscreen - its a communication protocol with the display. These require a rotary encoder - aka the knob. There’s a number of different DWIN screens (and likely more now) documented here: > [@Identifying Ender 3 V2 screen versions](https://marlin.crc.id.au/forum/t/identifying-ender-3-v2-screen-versions/960): > > Creality have begun shipping out multiple different screens with Ender 3 V2 printers - and as we see more of them appear in the wild, we are finding minor problems with rendering and different behaviour to different revisions of the screen hardware / software. Generation Type CPU Chip Picture Notes Gen 1 / DWIN N2VX82.00HG08 or dwin.com.cn on chip Firmware goes in the DWIN\_SET directory. Gen 2 / DACAI F1C100s Firmware goes in the private directory. Gen 3 / VI… --- _[View the full topic](https://marlin.crc.id.au/forum/t/ender3-4-2-7-board-bltouch-touchscreen-screen-unresponsive/2076)._