diff --git a/firmware/all_drv_2208/Robin_nano35.bin b/firmware/all_drv_2208/Robin_nano35.bin
deleted file mode 100644
index a85ae5bff8..0000000000
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diff --git a/firmware/bootloader/fb_4s_bootloader.bin b/firmware/bootloader/fb_4s_bootloader.bin
deleted file mode 100644
index 0ca7b1c239..0000000000
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diff --git a/firmware/fb_4s/Robin_nano35.bin b/firmware/fb_4s/Robin_nano35.bin
deleted file mode 100644
index 0d2e7d64d5..0000000000
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diff --git a/firmware/fb_5/Robin_nano35.bin b/firmware/fb_5/Robin_nano35.bin
deleted file mode 100644
index 08db8746ac..0000000000
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