diff --git a/README.md b/README.md
index ebba7b7..e6681cf 100644
--- a/README.md
+++ b/README.md
@@ -70,16 +70,10 @@ openocd -f interface/stlink.cfg -f target/stm32f4x.cfg -c "program target/thumbv
 ```
 
 ## Erasing Flash Settings
-The flash settings are stored in the last flash sector(ID: 11) of bank 0 of stm32f405. You can erase it with JTAG/SWD adapter or by putting the device in Dfu mode. You may find it useful if you have set network settings incorrectly.
+The flash settings are stored in the last flash sector(ID: 11) of bank 0 of stm32f405. You can erase it with JTAG/SWD adapter. You may find it useful if you have set network settings incorrectly.
 
 With JTAG/SWD adapter connected, issue the following command:
 
 ```shell
 openocd -f interface/stlink.cfg -f target/stm32f4x.cfg -c "flash init; init; halt; flash erase_sector 0 11 last; reset; exit"
 ```
-
-With STM32 in DFU Mode, connect the USB Type C cable and then issue the following command:
-
-```
-dfu-util -a 0 -s 0x080E0000:leave -D erase_flash_settings.bin
-```
diff --git a/erase_flash_settings.bin b/erase_flash_settings.bin
deleted file mode 100644
index e2c8fe9..0000000
Binary files a/erase_flash_settings.bin and /dev/null differ