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@pask81 Hello,Have you solved this problem? I am also facing this problem. It can work stably before adding touch. After adding touch, there is a probability that lvgl will stop...

Yes, as you said, I modified the otp.json and the routine, successfully wrote the key to page 31 and read it successfully. However, when I executed "picotool otp load otp.json"...

> I had exactly the same problem and adguard was the culprit, i disabled filtering for arduino-cli and arduino ide and it is working fine now I blocked these two...

Thanks for your reply, I have solved it. It seems that PICO_FLASH_SPI_CLKDIV and PICO_XOSC_STARTUP_DELAY_MULTIPLIER are set too large, which may cause I2C to fail to communicate after startup.