Index: ModuleDemo/25_OTA/bt_demo/BT/patch/patch.prog
===================================================================
--- /YC1121E/SoftCode/1121EB/branch/HciDongle/ModuleDemo/25_OTA/bt_demo/BT/patch/patch.prog	(revision 4590)
+++ /YC1121E/SoftCode/1121EB/branch/HciDongle/ModuleDemo/25_OTA/bt_demo/BT/patch/patch.prog	(working copy)
@@ -2549,18 +2549,17 @@
 
 
 p_sp_check_ssp_available:
-	disable true
+	//disable true
 	fetch 1,mem_simple_pairing_mode
 	rtn blank
-	fetch 2,mem_lmpext_ssp_enable
-	fetcht 1,mem_remote_sppcap
-	iand temp,pdata
+	//fetch 2,mem_lmpext_ssp_enable
+	//fetcht 1,mem_remote_sppcap
+	//iand temp,pdata
 	//rtn blank
 	fetch 1,mem_sp_state
-	rtn blank			// avoid re-entry
+	nrtn blank			// avoid re-entry
 	call p_hci_send_io_cap_req_event
 	jam 0x01,mem_io_cap_flag //io cap req
-	enable true
 	rtn
 
 	
Index: ModuleDemo/25_OTA/bt_demo/BT/patch/z.prog
===================================================================
--- /YC1121E/SoftCode/1121EB/branch/HciDongle/ModuleDemo/25_OTA/bt_demo/BT/patch/z.prog	(revision 4590)
+++ /YC1121E/SoftCode/1121EB/branch/HciDongle/ModuleDemo/25_OTA/bt_demo/BT/patch/z.prog	(working copy)
@@ -581,14 +581,15 @@
 	store 6,mem_hci_plap
 	jam hci_cmd_nokey,mem_hci_cmd
 	call z_hci_pin_code_reply
-	call p_sp_check_ssp_available
-	nbranch p_hci_send_pincode_req_event,true
+	//call p_sp_check_ssp_available
+	fetch 1,mem_simple_pairing_mode
+	branch p_hci_send_pincode_req_event,blank
 	//force 0x01,pdata
 	//store 1,mem_io_cap_flag
 	//fetch 1,mem_simple_pairing_mode
 	//beq  1,p_hci_send_io_cap_req_event
 	//branch p_hci_send_pincode_req_event
-	//rtn
+	rtn
 
 
 z_hci_pin_code_request_reply:
@@ -1841,7 +1842,8 @@
 	jam LOCAL_STATEMACHINE,mem_sp_localsm
 //	call p_hci_send_io_cap_req_event
 	call p_sp_check_ssp_available
-	nbranch p_hci_send_pincode_req_event,true	
+	fetch 1,mem_simple_pairing_mode
+	branch p_hci_send_pincode_req_event,blank
 	rtn	
 z_parse_lmp_features_req:
 	call parse_lmp_features_req
@@ -1877,6 +1879,7 @@
 
 	beq LMP_HOST_CONNECTION_REQ,z_parse_lmp_conn_req
  	beq LMP_MAX_SLOT_REQ,z_parse_lmp_max_slot_req
+	beq  LMP_DHKEY_CHECK,z_parse_dhkey_check
 
 	//branch z_parse_lmp_process_sub
 	branch parse_lmp_process+5
@@ -1924,6 +1927,13 @@
 	call accept_lmp_msg
 	branch z_hci_send_max_slots_change
 
+z_parse_dhkey_check:
+	fetch    1,mem_master_sp_state
+	beq SP_STAT_CONFIRM_SEND,z_parse_dhkey_check_test
+z_parse_dhkey_check_test:
+	jam LMP_ACCEPTED,mem_lmo_opcode2
+	branch parse_dhkey_check
+
 z_parse_lmp_max_slot_req_not_accept:
 	jam LMP_NOT_ACCEPTED,mem_lmo_opcode2
 	rtn
Index: ModuleDemo/25_OTA/bt_demo/BT/sched/user.dat
===================================================================
--- /YC1121E/SoftCode/1121EB/branch/HciDongle/ModuleDemo/25_OTA/bt_demo/BT/sched/user.dat	(revision 4590)
+++ /YC1121E/SoftCode/1121EB/branch/HciDongle/ModuleDemo/25_OTA/bt_demo/BT/sched/user.dat	(working copy)
@@ -188,7 +188,7 @@
 
 # debug log define
 #mem_param_debug_log_mem_block_start_addr
-mem_param_debug_log_func_enable:00
+mem_param_debug_log_func_enable:01
 
 mem_param_debug_log_initial_flag_addr:10 db 01
 mem_param_debug_log_lock_flag_cm0_addr:11 db 01
Index: ModuleDemo/25_OTA/bt_demo/CM0/respin/ramcode.rom
===================================================================
--- /YC1121E/SoftCode/1121EB/branch/HciDongle/ModuleDemo/25_OTA/bt_demo/CM0/respin/ramcode.rom	(revision 4590)
+++ /YC1121E/SoftCode/1121EB/branch/HciDongle/ModuleDemo/25_OTA/bt_demo/CM0/respin/ramcode.rom	(working copy)
@@ -75,56 +75,56 @@
 c01d0168
 c01f0216
 c02081e6
-c02206aa
-c02a06a6
-c02c0610
-c02e062c
-c02e8632
-c03506ac
-c03586ae
+c02206a9
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+c03506ab
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 c03601dd
 c04080eb
 c0428109
 c04300ce
 c04f00d2
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-c052068f
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+c052068e
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@@ -145,7 +145,7 @@
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@@ -335,8 +335,8 @@
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@@ -380,21 +380,21 @@
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@@ -494,7 +494,7 @@
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@@ -510,7 +510,7 @@
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@@ -531,7 +531,7 @@
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@@ -554,7 +554,7 @@
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@@ -635,7 +635,7 @@
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@@ -689,14 +689,14 @@
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@@ -899,7 +899,7 @@
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-202006d2
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@@ -911,7 +911,7 @@
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@@ -1026,7 +1026,7 @@
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@@ -1078,7 +1078,7 @@
 c2818411
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-2421067e
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@@ -1113,7 +1113,7 @@
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-202006d2
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 6a280f1e
 6a480f22
 6a660f26
@@ -1449,7 +1449,7 @@
 20203168
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-204006d6
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@@ -1467,7 +1467,7 @@
 6fe245b5
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-c001067e
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@@ -1500,7 +1500,7 @@
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@@ -1521,9 +1521,9 @@
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@@ -1532,10 +1532,9 @@
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@@ -1552,11 +1551,11 @@
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@@ -1601,7 +1600,7 @@
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@@ -1614,7 +1613,7 @@
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@@ -1625,7 +1624,7 @@
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@@ -1644,7 +1643,7 @@
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@@ -1660,28 +1659,28 @@
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@@ -1699,108 +1698,108 @@
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 580000a0
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-2020065a
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-2020065a
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-2020065a
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-2020065a
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-2020065a
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-2020065a
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 58000040
-2020065a
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 58000050
-2020065a
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 58000110
-2020065a
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 58000210
-2020065a
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-2020065a
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-2020065a
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 58000150
-2020065a
+20200659
 58000180
-2020065a
+20200659
 58000310
-2020065a
+20200659
 58000330
-2020065a
+20200659
Index: ModuleDemo/25_OTA/bt_demo/CM0/respin/sched.rom
===================================================================
--- /YC1121E/SoftCode/1121EB/branch/HciDongle/ModuleDemo/25_OTA/bt_demo/CM0/respin/sched.rom	(revision 4590)
+++ /YC1121E/SoftCode/1121EB/branch/HciDongle/ModuleDemo/25_OTA/bt_demo/CM0/respin/sched.rom	(working copy)
@@ -255,7 +255,7 @@
 
 # debug log define
 #mem_param_debug_log_mem_block_start_addr
-mem_param_debug_log_func_enable:00
+mem_param_debug_log_func_enable:01
 
 mem_param_debug_log_initial_flag_addr:10 db 01
 mem_param_debug_log_lock_flag_cm0_addr:11 db 01
Index: ModuleDemo/25_OTA/bt_demo/CM0/respin/zcode.rom
===================================================================
--- /YC1121E/SoftCode/1121EB/branch/HciDongle/ModuleDemo/25_OTA/bt_demo/CM0/respin/zcode.rom	(revision 4590)
+++ /YC1121E/SoftCode/1121EB/branch/HciDongle/ModuleDemo/25_OTA/bt_demo/CM0/respin/zcode.rom	(working copy)
@@ -69,7 +69,7 @@
 c006002b
 c0008008
 c0004880
-2020070c
+2020070b
 efea0006
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 efe40006
@@ -191,19 +191,22 @@
 00000000
 00000000
 20200040
+da201001
+68420048
+20407a08
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-c2838708
-c018801e
-c006070a
-c003802d
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@@ -214,7 +217,7 @@
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@@ -226,7 +229,7 @@
 1c427e00
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 6fe206ab
-c281802b
+c281802e
 79207e03
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@@ -251,9 +254,6 @@
 00000000
 00000000
 00000000
-00000000
-00000000
-00000000
 20200040
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 684c4639
@@ -264,7 +264,7 @@
 98467c00
 24628000
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-202006d4
+202006d3
 00000000
 00000000
 00000000
@@ -519,7 +519,7 @@
 67e4003e
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-20200706
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 00000000
 00000000
 00000000
@@ -610,7 +610,7 @@
 24348023
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-20200706
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 00000000
 00000000
 00000000
@@ -976,9 +976,9 @@
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@@ -1000,7 +1000,7 @@
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-20200704
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@@ -1152,11 +1152,12 @@
 00000000
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-c0060008
-c00b800f
-c0058012
-c0198702
-c017001c
+c0060009
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@@ -1177,15 +1178,22 @@
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@@ -1206,14 +1214,6 @@
 00000000
 00000000
 00000000
-00000000
-00000000
-00000000
-00000000
-00000000
-00000000
-00000000
-00000000
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 da201000
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@@ -1222,12 +1222,12 @@
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-20200700
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@@ -1262,7 +1262,8 @@
 60420055
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@@ -1273,11 +1274,10 @@
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@@ -1359,7 +1359,7 @@
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@@ -1488,7 +1488,7 @@
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-20200603
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@@ -2185,11 +2185,11 @@
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 2020028e
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@@ -2304,7 +2304,7 @@
 00000000
 20200040
 6fe24f34
-243a06f2
+243a06f1
 704f3401
 20400023
 6f224cd2
@@ -2380,7 +2380,7 @@
 c0078020
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-202006f0
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@@ -2437,7 +2437,7 @@
 c0058012
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-202006ee
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 67e244df
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@@ -2628,7 +2628,7 @@
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-202006ec
+202006eb
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@@ -2690,11 +2690,11 @@
 6fe24c18
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-c0068017
-c0070020
-c0088028
-c009802c
-202006ea
+c0068018
+c0070021
+c0088029
+c009802d
+202006e9
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 67ec42a9
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@@ -2702,13 +2702,14 @@
 20400246
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-20200023
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 2040024f
 67ec42a9
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-20400023
-204005f7
-2420823b
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+20600000
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 20400258
@@ -2717,7 +2718,7 @@
 d8a047f2
 20400246
 7042a709
-20200023
+20200024
 2040024f
 67ec42a9
 7042a70a
@@ -2749,13 +2750,12 @@
 00000000
 00000000
 00000000
-00000000
 20200040
 6fe24c18
 c0030006
 c004001c
 c005002f
-202006e8
+202006e7
 20400249
 67e242a8
 20400258
@@ -2828,7 +2828,7 @@
 c0230033
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-202006e6
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 20400249
 67e44153
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@@ -2949,7 +2949,7 @@
 c0058022
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 6fe44deb
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@@ -3013,7 +3013,7 @@
 c0018010
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-202006e2
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 67f04c6c
 20200292
@@ -3144,7 +3144,7 @@
 c00c8028
 c00d002d
 c00d8030
-202006e0
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 20400255
 67f04c1c
 20200292
@@ -3204,7 +3204,7 @@
 c0010017
 c0028019
 c0048025
-202006de
+202006dd
 7920001c
 2040024c
 67e64147