@jimit 在 Display with wrong color and contrast after SD writing 中说：

ESPFlashDownload

I have just tried; I am able to erase the flash with ESPDownloadTool, both in SPI and HSPI, but if I upload the firmware via Arduino, the display has always the same problem.

I don't know I it works but, is it possible to reflash the bootloader?

Thanks,
Paolo

I was creating a cataloguer for IMU signal and when I was trying to save data on SDcard, immediately after file open, display started to show wrong color and contrast. I tried to erase flash, flash micro python, refresh arduino firmware for display testing, but nothing change. How can I solve this problem?