Bigtreetech tft35 wifi. Jul 31, 2019 ยท Dual Working Modes: BTT TFT35 V3. 0. Please download the latest firmware (V3. 23 or higher) on the original website of our company to upgrade, so as to facilitate the use of WIFI function; File name:BIGTREE_TFT35_V3. It also supports both SD card and USB stick printing. 1 display enables two different modes, with options for either LCD12864 encoder mode, or the modern colour touch screen style. TFT35 V3. 23. ,LTD. It is an excellent replacement for the standard 12864 LCD displays.