I bought a VIM3L and TS050 touchscreen display. They worked well after I updated the latest firmware for VIM3L (Android 9 200320). Then, the touchscreen suddenly down and displays nothing. When I try to restart, the backlight is on, but nothing shown on the screen(even no boot logo). However, when I connect HDMI, I found the touching function of the touchscreen still works, which means I could use the screen as a trackpad to control the VIM3L.
I have tried to change a new FPC, it is still nothing, so it couldn’t be the problem of FPC.
