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* Display the secure-boot configuration on the diagnostics screen if secure-boot is enabled. See https://www.raspberrypi.com/documentation/computers/configuration.html#bcm2711-bootloader-properties-chosenbootloader * Toggle SD power at boot to reset card-state after ROM SD probe.
rpi-eeprom
This repository contains the scripts and pre-compiled binaries used to create the rpi-eeprom package which is used to update the Raspberry Pi 4 bootloader and VLI USB controller EEPROMs.
Support
Please check the Raspberry Pi general discussion forum if you have a support question.
Reset to factory defaults
To reset the bootloader back to factory defaults use Raspberry Pi Imager to write an EEPROM update image to a spare SD card. Select Misc utility images under the Operating System tab.
Bootloader documentation
Description
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