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https://github.com/raspberrypi/rpi-eeprom.git
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01da541b85
Create small (40MB) FAT32 images with 512 KB sectors. The aim is to have a simple, fixed format to avoid compatibility / FAT issues.
34 lines
1.2 KiB
Plaintext
34 lines
1.2 KiB
Plaintext
Raspberry Pi 4 EEPROM bootloader rescue image
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The Raspberry Pi 4 has a small EEPROM used to store the bootloader.
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This rescue image reverts the bootloader EEPROM to factory default settings.
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This rescue image also updates the USB 3.0 (VL805) firmware to the latest
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version (138a1) with better full-speed Isochronous endpoint support.
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This easiest method for creating EEPROM rescue images or formatting sdcards
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is to use the Raspberry Pi Imager from https://raspberrypi.com/software.
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The imager provides a GUI for downloading the latest version of this rescue
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image and flashing it to a spare SD CARD.
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Alternatively, copy the contents of this zip file to a blank
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FAT formatted SD-CARD. The FAT partition must be < 32 GB.
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To update the EEPROMs:
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1. Power off the Raspberry Pi
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2. Insert the SD-CARD
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3. Power on Raspberry Pi
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4. Wait at least 10 seconds
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If successful, the green LED light will blink rapidly (forever), otherwise
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an error pattern will be displayed.
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If a HDMI display is attached then the screen will display green for success
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or red if a failure occurs.
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The SD-CARD can now be removed and re-formatted using the Raspberry Pi Imager
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e.g. to install Raspberry Pi OS.
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