I've checked the bootloader code, and I can confirm that a button press is only required if doing a USB mass storage device boot AND no 25W PD-capable supply is detected AND usb_max_current_enable=1 is not set in config.txt AND it is a cold boot (not a reboot).
Using your config.txt with my SD card in a USB card reader and a lesser power supply, it still boots without hesitation - only if I comment out the last line does it wait for a button press.
Without a debug serial connector, diagnosis is more difficult, but I suggest attaching an HDMI display (if you haven't already), removing the SD card, and watching the display - it will eventually start showing diagnostic messages.
1. What is the Boot mode coming up as?
2. After a while, plug in the SD card, and watch the output - you should see it loading config.txt etc.
You may find it convenient to upload a video or series of photos of the boot process, using the trick of powering up without the boot medium to allow the display to wake up.
Using your config.txt with my SD card in a USB card reader and a lesser power supply, it still boots without hesitation - only if I comment out the last line does it wait for a button press.
Without a debug serial connector, diagnosis is more difficult, but I suggest attaching an HDMI display (if you haven't already), removing the SD card, and watching the display - it will eventually start showing diagnostic messages.
1. What is the Boot mode coming up as?
2. After a while, plug in the SD card, and watch the output - you should see it loading config.txt etc.
You may find it convenient to upload a video or series of photos of the boot process, using the trick of powering up without the boot medium to allow the display to wake up.
Statistics: Posted by PhilE — Thu Feb 01, 2024 1:57 pm
