diff --git a/Makefile.projbuild b/Makefile.projbuild
index 324f2829..26b43787 100644
--- a/Makefile.projbuild
+++ b/Makefile.projbuild
@@ -1,17 +1,7 @@
-BOOT_APP_BIN_OFFSET := 0xe000
 BOOT_APP_BIN_ROOT := $(call dequote,$(COMPONENT_PATH))
-BOOT_APP_BIN_PATH := $(call dequote,$(abspath $(BOOT_APP_BIN_ROOT)/$(subst $(quote),,tools/partitions/boot_app0.bin)))
 
 ifndef CONFIG_PARTITION_TABLE_CUSTOM
 PARTITION_TABLE_CSV_PATH = $(call dequote,$(abspath $(BOOT_APP_BIN_ROOT)/$(subst $(quote),,tools/partitions/$(CONFIG_ARDUHAL_PARTITION_SCHEME).csv)))
 endif
 
-BOOT_APP_BIN_FLASH_CMD = $(ESPTOOLPY_SERIAL) write_flash $(BOOT_APP_BIN_OFFSET) $(BOOT_APP_BIN_PATH)
-ESPTOOL_ALL_FLASH_ARGS += $(BOOT_APP_BIN_OFFSET) $(BOOT_APP_BIN_PATH)
-
 CPPFLAGS += -DARDUINO=10800 -DESP32=1 -DARDUINO_ARCH_ESP32=1 -DBOARD_HAS_PSRAM
-
-boot-app0:
-	@echo "Rebooting to APP0"
-	$(BOOT_APP_BIN_FLASH_CMD)
-