diff --git a/firmware/flash_can.sh b/firmware/flash_can.sh
new file mode 100644
index 0000000000..c16e43c497
--- /dev/null
+++ b/firmware/flash_can.sh
@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# This script will try to flash/update RusEFI part of firmware over can0 interface.
+#
+# You may want to bring can0 interface up first:
+# sudo ip link set can0 type can bitrate 500000 ; sudo ifconfig can0 up
+# Sometimes (after communication errors) you may like to restart interface with:
+# sudo ifconfig can0 down; sudo ip link set can0 type can bitrate 500000 ; sudo ifconfig can0 up
+
+echo This script assumes that you are using can0 interface and it is ready, otherwise read comments inside
+echo This script assumes that you have BootCommander somewhere in your PATH, otherwise read comments inside
+BootCommander -t=xcp_can -d=can0 deliver/rusefi_update.srec
+
+# OR
+# You can build it from sources with:
+# (cd ext/openblt/Host/Source/LibOpenBLT/ ; mkdir build ; cd build ; cmake .. ; make -j )
+# and
+# (cd ext/openblt/Host/Source/BootCommander/ ; mkdir build ; cd build ; cmake .. ; make -j )
+# And run:
+# ext/openblt/Host/BootCommander -t=xcp_can -d=can0 deliver/rusefi_update.srec
diff --git a/firmware/flash_dfu_openblt_only.sh b/firmware/flash_dfu_openblt_only.sh
new file mode 100644
index 0000000000..4711584672
--- /dev/null
+++ b/firmware/flash_dfu_openblt_only.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+# This script will flash OpenBLT bootloader only.
+# User should prefer to flash composite image,
+# see flash_dfu.sh/flash_dfu.bat
+
+dfu-util --alt 0 --download deliver/openblt.dfu --reset