diff --git a/builder/frameworks/beken-72xx-sdk.py b/builder/frameworks/beken-72xx-sdk.py
index d6593e7..087beee 100644
--- a/builder/frameworks/beken-72xx-sdk.py
+++ b/builder/frameworks/beken-72xx-sdk.py
@@ -94,6 +94,7 @@ env.Append(
         "-Wl,-wrap,snprintf",
         "-Wl,-wrap,sprintf",
         "-Wl,-wrap,vsnprintf",
+        "-Wl,-wrap,bk_printf",
     ],
 )
 
@@ -137,6 +138,7 @@ env.AddLibrary(
         "+<arch_main.c>",
         "+<ate_app.c>",
         "+<intc.c>",
+        "+<wrap.c>",
         *srcs_fixups,
     ],
 )
diff --git a/platform/beken-72xx/fixups/arch_main.c b/platform/beken-72xx/fixups/arch_main.c
index 7c43e00..d3f3a67 100644
--- a/platform/beken-72xx/fixups/arch_main.c
+++ b/platform/beken-72xx/fixups/arch_main.c
@@ -9,14 +9,15 @@
  *
  ****************************************************************************************
  */
-#include "app.h"
+#include "BkDriverFlash.h"
+#include "BkDriverWdg.h"
 #include "driver_pub.h"
 #include "func_pub.h"
 #include "include.h"
+#include "intc.h"
+#include "param_config.h"
 #include "start_type_pub.h"
 
-extern void user_main_entry(void);
-
 #if CFG_SUPPORT_BOOTLOADER
 void entry_set_world_flag(void) {
 	*(volatile uint32_t *)0x00400000 = 1;
@@ -24,12 +25,15 @@ void entry_set_world_flag(void) {
 #endif // CFG_SUPPORT_BOOTLOADER
 
 extern void main(void);
+extern unsigned char __disable_bk_printf;
 
 void entry_main(void) {
 	// compatibility with BK7231S_1.0.5
 #if CFG_SUPPORT_BOOTLOADER
 	entry_set_world_flag();
 #endif
+	// suppress all output during initialization
+	__disable_bk_printf = 1;
 	// read reboot cause into bk_misc_get_start_type()
 	bk_misc_init_start_type();
 	// clear driver registration arrays
@@ -37,10 +41,16 @@ void entry_main(void) {
 	// reboot the board if start_type == RESET_SOURCE_CRASH_PER_XAT0
 	bk_misc_check_start_type();
 	// init drivers
-	func_init_basic();
-	func_init_extended();
-	// run core initialization tasks
-	app_pre_start();
+	intc_init();
+	hal_flash_init();
+	cfg_param_init();
+	// enable watchdog
+#if CFG_INT_WDG_ENABLED
+	bk_wdg_initialize(CFG_INT_WDG_PERIOD_MS);
+	bk_wdg_reload();
+#endif
+	// enable bk_printf output again
+	__disable_bk_printf = 0;
 	// run the app
 	main();
 }
diff --git a/platform/beken-72xx/fixups/inc/param_config.h b/platform/beken-72xx/fixups/inc/param_config.h
new file mode 100644
index 0000000..759eda6
--- /dev/null
+++ b/platform/beken-72xx/fixups/inc/param_config.h
@@ -0,0 +1,8 @@
+/* Copyright (c) Kuba Szczodrzyński 2022-06-14. */
+
+#pragma once
+
+#include_next "param_config.h"
+
+#undef WIFI_MAC_POS
+#define WIFI_MAC_POS -1 // do not use stored MAC address by default
diff --git a/platform/beken-72xx/fixups/wrap.c b/platform/beken-72xx/fixups/wrap.c
new file mode 100644
index 0000000..3cbbf7e
--- /dev/null
+++ b/platform/beken-72xx/fixups/wrap.c
@@ -0,0 +1,22 @@
+/* Copyright (c) Kuba Szczodrzyński 2022-06-14. */
+
+#include <stdarg.h>
+#include <stddef.h>
+
+extern int __wrap_vsnprintf(char *str, size_t size, const char *format, va_list args);
+extern void bk_send_string(unsigned char uport, const char *string);
+extern int uart_print_port;
+
+unsigned char __disable_bk_printf = 0;
+
+void __wrap_bk_printf(const char *fmt, ...) {
+	if (__disable_bk_printf)
+		return;
+	va_list ap;
+	char string[128];
+	va_start(ap, fmt);
+	__wrap_vsnprintf(string, sizeof(string) - 1, fmt, ap);
+	string[127] = 0;
+	bk_send_string(uart_print_port, string);
+	va_end(ap);
+}