diff --git a/mods/bambu/bambu.js b/mods/bambu/bambu.js
index 060bf8f8..0efe1306 100644
--- a/mods/bambu/bambu.js
+++ b/mods/bambu/bambu.js
@@ -162,7 +162,7 @@ self.kiri.load(api => {
             chamber_temper,
             cooling_fan_speed,
             gcode_file,
-            gcode_state, // PAUSE, RUNNING, FAILED
+            gcode_state, // PREPARE, PAUSE, RUNNING, FAILED
             heatbreak_fan_speed,
             layer_num,
             mc_percent,
@@ -185,6 +185,11 @@ self.kiri.load(api => {
         $('bbl_pause').disabled = (gcode_state !== 'RUNNING');
         $('bbl_resume').disabled = (gcode_state !== 'PAUSE');
         $('bbl_resume').disabled = (gcode_state !== 'FAILED');
+        $('bbl_fan_part').value = cooling_fan_speed || 0;
+        $('bbl_fan_1').value = big_fan1_speed || 0;
+        $('bbl_fan_2').value = big_fan2_speed || 0;
+        $('bbl_fan_heatbreak').value = heatbreak_fan_speed || 0;
+        $('bbl_file_active').value = gcode_file || '';
         if (files && filelist.selectedIndex === -1) {
             h.bind(filelist, files.map(file => {
                 let name = file.name
@@ -384,6 +389,27 @@ self.kiri.load(api => {
                             h.label('target'),
                             h.input({ id: "bbl_bed_target", size: 5 })
                         ])
+                    ]),
+                    h.div({ class: "t-body t-inset f-col" }, [
+                        h.label({ class: "set-header dev-sel" }, [
+                            h.a('fans')
+                        ]),
+                        h.div({ class: "var-row" }, [
+                            h.label('part'),
+                            h.input({ id: "bbl_fan_part", size: 5 })
+                        ]),
+                        h.div({ class: "var-row" }, [
+                            h.label('fan1'),
+                            h.input({ id: "bbl_fan_1", size: 5 })
+                        ]),
+                        h.div({ class: "var-row" }, [
+                            h.label('fan2'),
+                            h.input({ id: "bbl_fan_2", size: 5 })
+                        ]),
+                        h.div({ class: "var-row" }, [
+                            h.label('heatbreak'),
+                            h.input({ id: "bbl_fan_heatbreak", size: 5 })
+                        ])
                     ])
                 ]),
                 h.div({ class: "f-col gap4 grow" }, [
@@ -432,6 +458,14 @@ self.kiri.load(api => {
                             console.log({ printing: selected.file.path });
                             file_print(selected.file.path);
                         }}),
+                    ]),
+                    h.div({ class: "t-body t-inset f-col gap3 pad4" }, [
+                        h.label({ class: "set-header dev-sel" }, [
+                            h.a('active file')
+                        ]),
+                        h.div({ class: "var-row" }, [
+                            h.input({ id: "bbl_file_active", disabled: true })
+                        ]),
                     ])
                 ])
             ]),
diff --git a/mods/bambu/cli.js b/mods/bambu/cli.js
index 04069cd0..207dad47 100644
--- a/mods/bambu/cli.js
+++ b/mods/bambu/cli.js
@@ -32,7 +32,7 @@ rl.on('line', (line) => {
             break;
         default:
             if (line.startsWith('M') || line.startsWith('G') || line.startsWith('T')) {
-                line = line.split(';').map(l => l.trim()).join('\n');
+                line = line.split(';').map(l => l.trimStart()).join('\n');
                 sendGcode(line);
             } else if (line.startsWith('ams ')) {
                 amsmap = JSON.parse(line.substring(4));
diff --git a/mods/bambu/init.js b/mods/bambu/init.js
index da4e9dd9..b49d9049 100644
--- a/mods/bambu/init.js
+++ b/mods/bambu/init.js
@@ -11,6 +11,7 @@ module.exports = async (server) => {
 
     class MQTT {
         #timer;
+        #timer2;
         #client;
         #serial;
         #topic_report;
@@ -39,6 +40,7 @@ module.exports = async (server) => {
                     util.log('mqtt sub', this.#serial, err || "ok");
                     onready(this);
                     this.keepalive();
+                    this.keepconn();
                 });
             });
 
@@ -59,6 +61,17 @@ module.exports = async (server) => {
             this.#timer = setTimeout(() => { this.end() }, 30000);
         }
 
+        keepconn() {
+            clearTimeout(this.#timer2);
+            this.#timer2 = setTimeout(() => { this.end() }, 60000);
+            if_mqtt(this.#serial, {
+                pushing: {
+                    sequence_id: "0",
+                    command: "push_status"
+                }
+            });
+        }
+
         async send(msg) {
             if (this.#client) {
                 util.log('mqtt send', this.#serial, msg);
diff --git a/src/kiri/ui.js b/src/kiri/ui.js
index 471d9fc9..c80cfe92 100644
--- a/src/kiri/ui.js
+++ b/src/kiri/ui.js
@@ -267,7 +267,7 @@ gapp.register("kiri.ui", [], (root, exports) => {
                 row,
                 arr,
                 update() {
-                    if (hidden[group]) {
+                    if (!hidden[group]) {
                         arr.innerHTML = '<i class="fa-solid fa-caret-down"></i>';
                         row.classList.add('hidden');
                     } else {