diff --git a/installer/Install Upgrade.lnk b/installer/Install Upgrade.lnk
new file mode 100644
index 0000000..e9f7c7b
Binary files /dev/null and b/installer/Install Upgrade.lnk differ
diff --git a/installer/Install with Factory Reset.lnk b/installer/Install with Factory Reset.lnk
new file mode 100644
index 0000000..a20d19a
Binary files /dev/null and b/installer/Install with Factory Reset.lnk differ
diff --git a/installer/install_upgrade.sh b/installer/install_upgrade.sh
index 81a238e..8a1b947 100644
--- a/installer/install_upgrade.sh
+++ b/installer/install_upgrade.sh
@@ -4,6 +4,12 @@ echo "IF THIS IS YOUR FIRST FLASH ON THIS BOARD PLEASE USE install_with_factory_
 
 read -p "Enter COM port (for example /dev/ttyS5): " port
 
-python3 ./bin/esptool/esptool.py --chip esp32 --port "$port" --baud 460800 --before default_reset --after hard_reset write_flash -z --flash_mode dio --flash_freq 40m --flash_size 4MB 0x1000 firmware/bootloader.bin 0x8000 firmware/partitions.bin 0xe000 firmware/boot_app0.bin 0x10000 firmware/firmware.bin
+PYTHON_CMD=python
+if command -v python3 &> /dev/null
+then
+    PYTHON_CMD=python3
+fi
+
+PYTHON_CMD ./bin/esptool/esptool.py --chip esp32 --port "$port" --baud 460800 --before default_reset --after hard_reset write_flash -z --flash_mode dio --flash_freq 40m --flash_size 4MB 0x1000 firmware/bootloader.bin 0x8000 firmware/partitions.bin 0xe000 firmware/boot_app0.bin 0x10000 firmware/firmware.bin
 
 echo "Firmware flashed"
\ No newline at end of file
diff --git a/installer/install_with_factory_reset.sh b/installer/install_with_factory_reset.sh
index e69de29..0d70661 100644
--- a/installer/install_with_factory_reset.sh
+++ b/installer/install_with_factory_reset.sh
@@ -0,0 +1,17 @@
+#!/bin/bash
+echo "Your firmware will be upgraded without factory reset."
+echo "IF THIS IS YOUR FIRST FLASH ON THIS BOARD PLEASE USE install_with_factory_reset.sh INSTEAD!"
+
+read -p "Enter COM port (for example /dev/ttyS5): " port
+
+PYTHON_CMD=python
+if command -v python3 &> /dev/null
+then
+    PYTHON_CMD=python3
+fi
+
+$PYTHON_CMD ./bin/esptool/esptool.py --chip esp32 --port "$port" --baud 460800 --before default_reset --after hard_reset write_flash -z --flash_mode dio --flash_freq 40m --flash_size 4MB 2686976 firmware/spiffs.bin
+
+$PYTHON_CMD ./bin/esptool/esptool.py --chip esp32 --port "$port" --baud 460800 --before default_reset --after hard_reset write_flash -z --flash_mode dio --flash_freq 40m --flash_size 4MB 0x1000 firmware/bootloader.bin 0x8000 firmware/partitions.bin 0xe000 firmware/boot_app0.bin 0x10000 firmware/firmware.bin
+
+echo "Firmware flashed"
\ No newline at end of file