diff --git a/ATU_100_EXT_board/FirmWare_PIC18F2520/2550_atu_100_fw_EXT_31.zip b/ATU_100_EXT_board/FirmWare_PIC18F2520/2550_atu_100_fw_EXT_31.zip deleted file mode 100644 index 7dcae25..0000000 Binary files a/ATU_100_EXT_board/FirmWare_PIC18F2520/2550_atu_100_fw_EXT_31.zip and /dev/null differ