Raspberry Pi 4 UEFI Firmware Images
Raspberry Pi 4 UEFI Firmware v1.27
Raspberry Pi 4 UEFI Firmware v1.26
Raspberry Pi 4 UEFI Firmware v1.25
Raspberry Pi 4 UEFI Firmware v1.24
ACPI_BIOS_ERROR
BSOD [tianocore/edk2-platforms@d22356576053271b2645afa1387ed909050027ae]Raspberry Pi 4 UEFI Firmware v1.23
start4.elf
where raspberrypi/firmware#1518 has been fixed (#109).IMPORTANT NOTICE: If you are using this firmware to boot Windows, please be mindful that the default settings for SD/eMMC2 have changed, which may result in a BSOD. To boot Windows, you will need to go to Device Manager
→ Raspberry Pi Configuration
→ SD/MMC Configuration and change uSD/eMMC Routing
to Arasan SDHCI
.
Raspberry Pi 4 UEFI Firmware v1.22
Important Note: The start4.elf
and fixup4.dat
used in this release are the 2020.12.01 ones, as using newer versions broke xHCI initialization (raspberrypi/firmware#1518, raspberrypi/firmware#1495) with newer revisions of the Bcm2711 SoC. Do not be tempted to use more recent versions of start4.elf
, as, unless you are using an old Pi 4 model, this will most likely break USB support.
Raspberry Pi 4 UEFI Firmware v1.21
start4.elf
[See raspberrypi/firmware#1445, raspberrypi/firmware#1489]Raspberry Pi 4 UEFI Firmware v1.20
Raspberry Pi 4 UEFI Firmware v1.19
DBG2
UART not being set properly [tianocore/edk2-platforms@fe34d84a73cf8a5e85e6a15c1770eae539e1f77b]Raspberry Pi 4 UEFI Firmware v1.18
NOTE: This firmware archive was altered from the AppVeyor produced version in order to use an older version of start4.elf
/fixup4.dat
on account of the regression introduced in raspberrypi/firmware#1445