diff --git a/proprietary-firmware.txt b/proprietary-firmware.txt
new file mode 100644
index 0000000..28763e3
--- /dev/null
+++ b/proprietary-firmware.txt
@@ -0,0 +1,3 @@
+# Firmware - from berlin_global-user 13 T1RGS33.135-109-9-7 9d4ba5-7c15b7 release-keys - RETAIL variant - (factory image).
+
+BTFM.bin:bluetooth.img;AB