diff --git a/protocol.md b/protocol.md
index 227d678..aa489aa 100644
--- a/protocol.md
+++ b/protocol.md
@@ -176,7 +176,7 @@ Arguments: none
 Unknown.
 
 ### MISC
-Unknown.
+WRTE, READ or DAER ETRW or ERDA RWET
 
 ### KILO
 Unknown.
@@ -184,6 +184,21 @@ Unknown.
 ### DIFF
 Unknown.
 
+### SNIF
+Unknown.
+### OPCM
+Unknown.
+### CHCK
+Unknown.
+### FUSE
+Unknown.
+### CRCC
+Unknown.
+### FAIL
+"why call me! someday will be use? error"
+### HELO
+Unknown.
+
 ## USB layer
 The LG Windows driver (via `LGMobileDriver_WHQL_Ver_4.0.3.exe`) exposes two
 serial ports, `LGANDNETMDM0` and `LGANDNETDIAG1`. The `LGANDNETDIAG1` port is