diff --git a/Firmware/DFP-34X-2C2/README.md b/Firmware/DFP-34X-2C2/README.md
index ab96399..33696a8 100644
--- a/Firmware/DFP-34X-2C2/README.md
+++ b/Firmware/DFP-34X-2C2/README.md
@@ -1,3 +1,5 @@
 # ODI DFP-34X-2C2
 1. This for stick using Realtek RTL9601C1 SoC only!
-2. If your stick using ZTE chipset, this firmware are not compatible!
\ No newline at end of file
+2. If your stick using ZTE chipset, this firmware are not compatible!
+
+> # This firmware cannot be used on `V2801F` and `TWCGPON657`!