diff --git a/applications/system/js_app/js_thread.c b/applications/system/js_app/js_thread.c
index 95cad84f6..c448945de 100644
--- a/applications/system/js_app/js_thread.c
+++ b/applications/system/js_app/js_thread.c
@@ -337,9 +337,9 @@ static int32_t js_thread(void* arg) {
     mjs_set(mjs, global, "toString", ~0, MJS_MK_FN(js_global_to_string));
     mjs_set(mjs, global, "ffi_address", ~0, MJS_MK_FN(js_ffi_address));
     mjs_set(mjs, global, "require", ~0, MJS_MK_FN(js_require));
-    mjs_set(mjs, global, "parse_int", ~0, MJS_MK_FN(js_parse_int));
-    mjs_set(mjs, global, "to_upper_case", ~0, MJS_MK_FN(js_to_upper_case));
-    mjs_set(mjs, global, "to_lower_case", ~0, MJS_MK_FN(js_to_lower_case));
+    mjs_set(mjs, global, "parseInt", ~0, MJS_MK_FN(js_parse_int));
+    mjs_set(mjs, global, "toUpperCase", ~0, MJS_MK_FN(js_to_upper_case));
+    mjs_set(mjs, global, "toLowerCase", ~0, MJS_MK_FN(js_to_lower_case));
 
     mjs_val_t console_obj = mjs_mk_object(mjs);
     mjs_set(mjs, console_obj, "log", ~0, MJS_MK_FN(js_console_log));
diff --git a/applications/system/js_app/modules/js_badusb.c b/applications/system/js_app/modules/js_badusb.c
index 85a70b493..7a42d0a3a 100644
--- a/applications/system/js_app/modules/js_badusb.c
+++ b/applications/system/js_app/modules/js_badusb.c
@@ -104,7 +104,7 @@ static bool setup_parse_params(
     mjs_val_t pid_obj = mjs_get(mjs, arg, "pid", ~0);
     mjs_val_t mfr_obj = mjs_get(mjs, arg, "mfrName", ~0);
     mjs_val_t prod_obj = mjs_get(mjs, arg, "prodName", ~0);
-    mjs_val_t layout_obj = mjs_get(mjs, arg, "layout_path", ~0);
+    mjs_val_t layout_obj = mjs_get(mjs, arg, "layoutPath", ~0);
 
     if(mjs_is_number(vid_obj) && mjs_is_number(pid_obj)) {
         hid_cfg->vid = mjs_get_int32(mjs, vid_obj);
diff --git a/applications/system/js_app/modules/js_subghz/js_subghz.c b/applications/system/js_app/modules/js_subghz/js_subghz.c
index daa46e5e5..051566aec 100644
--- a/applications/system/js_app/modules/js_subghz/js_subghz.c
+++ b/applications/system/js_app/modules/js_subghz/js_subghz.c
@@ -282,6 +282,11 @@ static void js_subghz_transmit_file(struct mjs* mjs) {
             break;
         }
 
+        if(!subghz_devices_is_frequency_valid(js_subghz->radio_device, frequency)) {
+            mjs_prepend_errorf(mjs, MJS_INTERNAL_ERROR, "Unsupported frequency");
+            break;
+        }
+
         if(!flipper_format_read_string(fff_file, "Preset", temp_str)) {
             mjs_prepend_errorf(mjs, MJS_INTERNAL_ERROR, "Missing Preset");
             break;
diff --git a/applications/system/js_app/modules/js_vgm/js_vgm.c b/applications/system/js_app/modules/js_vgm/js_vgm.c
index 2d7a56b6e..8d48d843f 100644
--- a/applications/system/js_app/modules/js_vgm/js_vgm.c
+++ b/applications/system/js_app/modules/js_vgm/js_vgm.c
@@ -144,10 +144,10 @@ static void js_vgm_destroy(void* inst) {
 }
 
 static const JsModuleDescriptor js_vgm_desc = {
-    name: "vgm",
-    create: js_vgm_create,
-    destroy: js_vgm_destroy,
-    api_interface: NULL,
+    "vgm",
+    js_vgm_create,
+    js_vgm_destroy,
+    NULL,
 };
 
 static const FlipperAppPluginDescriptor plugin_descriptor = {
diff --git a/applications/system/js_app/modules/js_widget.c b/applications/system/js_app/modules/js_widget.c
index 64390abe7..1c0e98b7c 100644
--- a/applications/system/js_app/modules/js_widget.c
+++ b/applications/system/js_app/modules/js_widget.c
@@ -866,7 +866,6 @@ static void* js_widget_create(struct mjs* mjs, mjs_val_t* object, JsModules* mod
     widget->view_holder = view_holder_alloc();
     view_holder_attach_to_gui(widget->view_holder, gui);
     view_holder_set_back_callback(widget->view_holder, widget_exit, widget);
-    view_holder_set_view(widget->view_holder, widget->view);
 
     *object = widget_obj;
     return widget;
diff --git a/applications/system/js_app/types/badusb/index.d.ts b/applications/system/js_app/types/badusb/index.d.ts
index 4b49dc991..872b8fe04 100644
--- a/applications/system/js_app/types/badusb/index.d.ts
+++ b/applications/system/js_app/types/badusb/index.d.ts
@@ -32,9 +32,12 @@ export type KeyCode = MainKey | ModifierKey | number;
 
 /**
  * @brief Initializes the module
+ * 
+ * Automatically unlocks USB profile, so qFlipper connection will be interrupted.
+ * 
  * @param settings USB device settings. Omit to select default parameters
  */
-export declare function setup(settings?: { vid: number, pid: number, mfrName?: string, prodName?: string, layout_path: string }): void;
+export declare function setup(settings?: { vid: number, pid: number, mfrName?: string, prodName?: string, layoutPath: string }): void;
 
 /**
  * @brief Tells whether the virtual USB HID device has successfully connected
@@ -83,10 +86,19 @@ export declare function println(string: string, delay?: number): void;
 /**
  * @brief Prints a string by Alt+Numpad method - works only on Windows!
  * @param string The string to print
+ * @param delay How many milliseconds to wait between key presses
  */
-export declare function altPrintln(string: string): void;
+export declare function altPrint(string: string, delay?: number): void;
 
 /**
- * @brief Releases usb, Optional, but allows to interchange with usbdisk
+ * @brief Prints a string by Alt+Numpad method - works only on Windows!
+ *        Presses "Enter" after printing the string
+ * @param string The string to print
+ * @param delay How many milliseconds to wait between key presses
+ */
+export declare function altPrintln(string: string, delay?: number): void;
+
+/**
+ * @brief Releases usb, optional, but allows to interchange with usbdisk
  */
 export declare function quit(): void;
diff --git a/applications/system/js_app/types/global.d.ts b/applications/system/js_app/types/global.d.ts
index ab1660cf6..b3e4aac33 100644
--- a/applications/system/js_app/types/global.d.ts
+++ b/applications/system/js_app/types/global.d.ts
@@ -18,6 +18,34 @@ declare function print(...args: any[]): void;
  */
 declare function toString(value: number, base?: number): string;
 
+/**
+ * @brief Converts a string to a number
+ * @param text The string to convert to a number
+ */
+declare function parseInt(text: string): number;
+
+/**
+ * @brief Transforms a string to upper case
+ * @param text The string to transforms to upper case
+ */
+declare function toUpperCase(text: string): string;
+
+/**
+ * @brief Transforms a string to lower case
+ * @param text The string to transforms to lower case
+ */
+declare function toLowerCase(text: string): string;
+
+/**
+ * @brief Path to the directory containing the current script
+ */
+declare const __dirpath: string;
+
+/**
+ * @brief Path to the current script file
+ */
+declare const __filepath: string;
+
 /**
  * @brief Reads a JS value from a file
  * 
diff --git a/applications/system/js_app/types/gui/byte_input.ts b/applications/system/js_app/types/gui/byte_input.ts
new file mode 100644
index 000000000..92bd4c5a8
--- /dev/null
+++ b/applications/system/js_app/types/gui/byte_input.ts
@@ -0,0 +1,14 @@
+import type { View, ViewFactory } from ".";
+import type { Contract } from "../event_loop";
+
+type Props = {
+    header: string,
+    length: number,
+    defaultData: Uint8Array | ArrayBuffer,
+}
+declare class ByteInput extends View<Props> {
+    input: Contract<string>;
+}
+declare class ByteInputFactory extends ViewFactory<Props, ByteInput> { }
+declare const factory: ByteInputFactory;
+export = factory;
diff --git a/applications/system/js_app/types/gui/text_input.d.ts b/applications/system/js_app/types/gui/text_input.d.ts
index 96652b1d4..bdb5b4d4c 100644
--- a/applications/system/js_app/types/gui/text_input.d.ts
+++ b/applications/system/js_app/types/gui/text_input.d.ts
@@ -5,6 +5,8 @@ type Props = {
     header: string,
     minLength: number,
     maxLength: number,
+    defaultText: string,
+    defaultTextClear: boolean,
 }
 declare class TextInput extends View<Props> {
     input: Contract<string>;
diff --git a/applications/system/js_app/types/serial/index.d.ts b/applications/system/js_app/types/serial/index.d.ts
index 1a7ed6397..680f9bd6e 100644
--- a/applications/system/js_app/types/serial/index.d.ts
+++ b/applications/system/js_app/types/serial/index.d.ts
@@ -1,5 +1,8 @@
 /**
  * @brief Initializes the serial port
+ * 
+ * Automatically disables Expansion module service to prevent interference.
+ * 
  * @param port The port to initialize (`"lpuart"` or `"start"`)
  * @param baudRate 
  */
@@ -42,6 +45,19 @@ export declare function read(length: number, timeout?: number): string | undefin
  */
 export declare function readln(timeout?: number): string;
 
+/**
+ * @brief Read any available amount of data from the serial port
+ * 
+ * Can be useful to avoid starving your loop with small reads.
+ * 
+ * @param timeout The number of time, in milliseconds, after which this function
+ *                will give up and return nothing. If unset, the function will
+ *                wait forever.
+ * @returns The received data interpreted as ASCII, or `undefined` if 0 bytes
+ *          were read.
+ */
+export declare function readAny(timeout?: number): string | undefined;
+
 /**
  * @brief Reads data from the serial port
  * @param length The number of bytes to read
@@ -75,3 +91,8 @@ export declare function readBytes(length: number, timeout?: number): ArrayBuffer
  *          patterns matched.
  */
 export declare function expect(patterns: string | number[] | string[] | number[][], timeout?: number): number | undefined;
+
+/**
+ * @brief Deinitializes the serial port, allowing multiple initializations per script run
+ */
+export declare function end(): void;