diff --git a/resources/profiles/BBL.json b/resources/profiles/BBL.json
index f9e4543cc2..cf98c3a397 100644
--- a/resources/profiles/BBL.json
+++ b/resources/profiles/BBL.json
@@ -1,7 +1,7 @@
 {
     "name": "Bambulab",
     "url": "http://www.bambulab.com/Parameters/vendor/BBL.json",
-    "version": "01.05.00.20",
+    "version": "01.05.00.21",
     "force_update": "0",
     "description": "the initial version of BBL configurations",
     "machine_model_list": [
diff --git a/resources/profiles/BBL/machine/Bambu Lab P1P 0.4 nozzle.json b/resources/profiles/BBL/machine/Bambu Lab P1P 0.4 nozzle.json
index 575ed0d922..4774f556a4 100644
--- a/resources/profiles/BBL/machine/Bambu Lab P1P 0.4 nozzle.json	
+++ b/resources/profiles/BBL/machine/Bambu Lab P1P 0.4 nozzle.json	
@@ -31,6 +31,7 @@
     "nozzle_type": "stainless_steel",
     "nozzle_hrc": "20",
     "auxiliary_fan": "0",
+    "layer_change_gcode": "; layer num/total_layer_count: {layer_num+1}/[total_layer_count]\nM622.1 S1 ; for prev firware, default turned on\nM1002 judge_flag timelapse_record_flag\nM622 J1\n{if timelapse_type == 0} ; timelapse without wipe tower\nM971 S11 C10 O0\n{elsif timelapse_type == 1} ; timelapse with wipe tower\nG92 E0\nG1 E-[retraction_length] F1800\nG17\nG2 Z{layer_z + 0.4} I0.86 J0.86 P1 F20000 ; spiral lift a little\nG1 X65 Y245 F20000 ; move to safe pos\nG17\nG2 Z{layer_z} I0.86 J0.86 P1 F20000\nG1 Y265 F3000\nM400 P300\nM971 S11 C11 O0\nG92 E0\nG1 E[retraction_length] F300\nG1 X100 F5000\nG1 Y255 F20000\n{endif}\nM623\n; update layer progress\nM73 L{layer_num+1}\nM991 S0 P{layer_num} ;notify layer change",
     "upward_compatible_machine":[
         "Bambu Lab X1 0.4 nozzle",
         "Bambu Lab X1 Carbon 0.4 nozzle"