diff --git a/lib/bin/sb_fota/CMakeLists.txt b/lib/bin/sb_fota/CMakeLists.txt
index 3a9e8dc..45d687c 100644
--- a/lib/bin/sb_fota/CMakeLists.txt
+++ b/lib/bin/sb_fota/CMakeLists.txt
@@ -25,8 +25,12 @@ if(NOT EXISTS ${SB_FOTA_LIB_PATH})
                   "(${SB_FOTA_LIB_PATH} doesn't exist.)")
 endif()
 
-set(                    SB_FOTA_TARGET libsb_fota)
-zephyr_library_import(${SB_FOTA_TARGET} ${SB_FOTA_LIB_PATH}/libsb_fota.a)
+set(SB_FOTA_TARGET libsb_fota)
+if(CONFIG_SB_FOTA_LOG)
+  zephyr_library_import(${SB_FOTA_TARGET} ${SB_FOTA_LIB_PATH}/libsb_fota_log.a)
+else()
+  zephyr_library_import(${SB_FOTA_TARGET} ${SB_FOTA_LIB_PATH}/libsb_fota.a)
+endif()
 target_link_libraries(${SB_FOTA_TARGET} INTERFACE modem -lc)
 
 zephyr_include_directories(include)
diff --git a/lib/bin/sb_fota/Kconfig b/lib/bin/sb_fota/Kconfig
index 10eaef3..f15ce12 100644
--- a/lib/bin/sb_fota/Kconfig
+++ b/lib/bin/sb_fota/Kconfig
@@ -64,9 +64,15 @@ config SB_FOTA_ID_PREFIX
 	  be used on provisioning. Prefix is only appended on IMEI or UUID. Not appended on
 	  client ID changed on runtime API.
 
+config SB_FOTA_LOG
+	bool "Link binary with logs"
+	help
+	  Links the application with the library version capable of emitting logs.
+	  This increases the final size of the application.
+
 module=SB_FOTA
 module-dep=LOG
-module-str=Modem Firmware Over the Air client
+module-str=SoftBank FOTA library
 source "${ZEPHYR_BASE}/subsys/logging/Kconfig.template.log_config"
 
 endif # SB_FOTA
diff --git a/lib/bin/sb_fota/include/sb_fota.h b/lib/bin/sb_fota/include/sb_fota.h
index a6ff901..54f46bf 100644
--- a/lib/bin/sb_fota/include/sb_fota.h
+++ b/lib/bin/sb_fota/include/sb_fota.h
@@ -38,8 +38,6 @@ enum sb_fota_event {
 	 * device is booted.
 	 */
 	SB_FOTA_EVENT_MODEM_SHUTDOWN,
-	/** Modem FW is now updated, reboot the device to resume network operations. */
-	SB_FOTA_EVENT_REBOOT_PENDING,
 };
 
 /**
@@ -60,9 +58,6 @@ typedef void (*sb_fota_callback_t)(enum sb_fota_event event);
  * If Kconfig value CONFIG_SB_FOTA_AUTOINIT is set, then application is not required to call this
  * function, but might still want to use it for registering the callback.
  *
- * If there is no callback set, then the library automatically reboots the device in case of
- * SB_FOTA_EVENT_REBOOT_PENDING event.
- *
  * @param callback Callback for the application events or NULL for no callback.
  *
  * @retval 0 If the operation was successful.
diff --git a/lib/bin/sb_fota/include/sb_fota_os.h b/lib/bin/sb_fota/include/sb_fota_os.h
index 5c0f796..b2f9d98 100644
--- a/lib/bin/sb_fota/include/sb_fota_os.h
+++ b/lib/bin/sb_fota/include/sb_fota_os.h
@@ -49,11 +49,6 @@ uint32_t sb_fota_os_uptime_get_32(void);
  */
 int sb_fota_os_sleep(int ms);
 
-/**
- * @brief Reboot system.
- */
-void sb_fota_os_sys_reset(void);
-
 /**
  * @brief Get a random value.
  */
@@ -123,19 +118,15 @@ bool sb_fota_os_timer_is_running(struct sb_fota_os_timer *timer);
 
 int64_t sb_fota_os_timegm64(const struct tm *time);
 
-#define FOTA_LOG_LEVEL_NONE 0U
-#define FOTA_LOG_LEVEL_ERR  1U
-#define FOTA_LOG_LEVEL_WRN  2U
-#define FOTA_LOG_LEVEL_INF  3U
-#define FOTA_LOG_LEVEL_DBG  4U
+enum sb_fota_os_log_level {
+	SB_FOTA_OS_LOG_LEVEL_NONE,
+	SB_FOTA_OS_LOG_LEVEL_ERR,
+	SB_FOTA_OS_LOG_LEVEL_WRN,
+	SB_FOTA_OS_LOG_LEVEL_INF,
+	SB_FOTA_OS_LOG_LEVEL_DBG,
+};
 
 void sb_fota_os_log(int level, const char *fmt, ...);
-const char *sb_fota_os_log_strdup(const char *str);
-
-#define FOTA_LOG_ERR(...) sb_fota_os_log(FOTA_LOG_LEVEL_ERR, __VA_ARGS__);
-#define FOTA_LOG_WRN(...) sb_fota_os_log(FOTA_LOG_LEVEL_WRN, __VA_ARGS__);
-#define FOTA_LOG_INF(...) sb_fota_os_log(FOTA_LOG_LEVEL_INF, __VA_ARGS__);
-#define FOTA_LOG_DBG(...) sb_fota_os_log(FOTA_LOG_LEVEL_DBG, __VA_ARGS__);
 
 #define SB_FOTA_SETTINGS_PREFIX "sb_fota"
 
diff --git a/lib/bin/sb_fota/lib/cortex-m33/hard-float/libsb_fota.a b/lib/bin/sb_fota/lib/cortex-m33/hard-float/libsb_fota.a
index b79b63a..eb98730 100644
Binary files a/lib/bin/sb_fota/lib/cortex-m33/hard-float/libsb_fota.a and b/lib/bin/sb_fota/lib/cortex-m33/hard-float/libsb_fota.a differ
diff --git a/lib/bin/sb_fota/lib/cortex-m33/hard-float/libsb_fota_log.a b/lib/bin/sb_fota/lib/cortex-m33/hard-float/libsb_fota_log.a
new file mode 100644
index 0000000..8fefe86
Binary files /dev/null and b/lib/bin/sb_fota/lib/cortex-m33/hard-float/libsb_fota_log.a differ
diff --git a/lib/bin/sb_fota/lib/cortex-m33/softfp-float/libsb_fota.a b/lib/bin/sb_fota/lib/cortex-m33/softfp-float/libsb_fota.a
index 6ae4ab8..166b178 100644
Binary files a/lib/bin/sb_fota/lib/cortex-m33/softfp-float/libsb_fota.a and b/lib/bin/sb_fota/lib/cortex-m33/softfp-float/libsb_fota.a differ
diff --git a/lib/bin/sb_fota/lib/cortex-m33/softfp-float/libsb_fota_log.a b/lib/bin/sb_fota/lib/cortex-m33/softfp-float/libsb_fota_log.a
new file mode 100644
index 0000000..5c4b2b4
Binary files /dev/null and b/lib/bin/sb_fota/lib/cortex-m33/softfp-float/libsb_fota_log.a differ
diff --git a/lib/bin/sb_fota/os/sb_fota_os.c b/lib/bin/sb_fota/os/sb_fota_os.c
index c43a772..ae7adbf 100644
--- a/lib/bin/sb_fota/os/sb_fota_os.c
+++ b/lib/bin/sb_fota/os/sb_fota_os.c
@@ -11,7 +11,6 @@
 #include <zephyr/device.h>
 #include <zephyr/types.h>
 #include <zephyr/random/random.h>
-#include <zephyr/sys/reboot.h>
 #include <zephyr/sys/timeutil.h>
 #include <zephyr/logging/log.h>
 #include <zephyr/logging/log_msg.h>
@@ -56,12 +55,6 @@ int sb_fota_os_sleep(int ms)
 
 /* OS functions */
 
-void sb_fota_os_sys_reset(void)
-{
-	sys_reboot(SYS_REBOOT_COLD);
-	CODE_UNREACHABLE;
-}
-
 uint32_t sb_fota_os_rand_get(void)
 {
 	return sys_rand32_get();
@@ -215,30 +208,57 @@ int64_t sb_fota_os_timegm64(const struct tm *time)
 }
 
 /* Logging */
-
 LOG_MODULE_REGISTER(sb_fota, CONFIG_SB_FOTA_LOG_LEVEL);
 
-void sb_fota_os_log(int level, const char *fmt, ...)
+#if defined(CONFIG_LOG)
+static uint8_t log_level_translate(uint8_t level)
 {
-	if (!IS_ENABLED(CONFIG_LOG_MODE_MINIMAL)) {
-		va_list ap;
-
-		va_start(ap, fmt);
-		log_generic(level, fmt, ap);
-		va_end(ap);
+	switch (level) {
+	case SB_FOTA_OS_LOG_LEVEL_ERR:
+		return LOG_LEVEL_ERR;
+	case SB_FOTA_OS_LOG_LEVEL_WRN:
+		return LOG_LEVEL_WRN;
+	case SB_FOTA_OS_LOG_LEVEL_INF:
+		return LOG_LEVEL_INF;
+	case SB_FOTA_OS_LOG_LEVEL_DBG:
+		return LOG_LEVEL_DBG;
+	default:
+		return LOG_LEVEL_NONE;
 	}
 }
+#endif
 
-const char *sb_fota_os_log_strdup(const char *str)
-{
-	return str;
-}
-
-void sb_fota_os_logdump(const char *str, const void *data, size_t len)
+void sb_fota_os_log(int level, const char *fmt, ...)
 {
-	if (IS_ENABLED(CONFIG_LOG)) {
-		LOG_HEXDUMP_DBG(data, len, str);
+#if defined(CONFIG_LOG)
+	level = log_level_translate(level);
+	if (level > CONFIG_SB_FOTA_LOG_LEVEL) {
+		return;
 	}
+
+	va_list ap;
+	va_start(ap, fmt);
+
+#if CONFIG_LOG_MODE_MINIMAL
+		/* Fallback to minimal implementation. */
+		printk("%c: ", z_log_minimal_level_to_char(level));
+		z_log_minimal_vprintk(fmt, ap);
+		printk("\n");
+#else
+		void *source;
+
+		if (IS_ENABLED(CONFIG_LOG_RUNTIME_FILTERING)) {
+			source = (void *)__log_current_dynamic_data;
+		} else {
+			source = (void *)__log_current_const_data;
+		}
+
+		z_log_msg_runtime_vcreate(Z_LOG_LOCAL_DOMAIN_ID, source, level,
+					  NULL, 0, 0, fmt, ap);
+#endif /* CONFIG_LOG_MODE_MINIMAL */
+
+	va_end(ap);
+#endif /* CONFIG_LOG */
 }
 
 /* Settings */
@@ -304,19 +324,19 @@ void sb_fota_os_store_setting(const char *name, size_t len, const void *ptr)
 
 void sb_fota_os_update_apply(void)
 {
-	FOTA_LOG_INF("Applying modem firmware update...");
-	FOTA_LOG_DBG("Shutting down modem");
+	LOG_INF("Applying modem firmware update...");
+	LOG_DBG("Shutting down modem");
 
 	if (fota_download_util_apply_update(DFU_TARGET_IMAGE_TYPE_MODEM_DELTA) == 0) {
-		FOTA_LOG_DBG("Modem update OK");
+		LOG_DBG("Modem update OK");
 	} else {
-		FOTA_LOG_ERR("Modem update failed");
+		LOG_ERR("Modem update failed");
 	}
 
 	int err = lte_lc_connect();
 
 	if (err) {
-		FOTA_LOG_ERR("Connecting to network failed, err %d\n", err);
+		LOG_ERR("Connecting to network failed, err %d", err);
 	}
 }
 
@@ -329,7 +349,7 @@ static void sb_fota_on_modem_init(int ret, void *ctx)
 	if (IS_ENABLED(CONFIG_SB_FOTA_AUTOINIT)) {
 		err = sb_fota_init(NULL);
 		if (err) {
-			FOTA_LOG_ERR("Failed to initialize FOTA client");
+			LOG_ERR("Failed to initialize FOTA client");
 		}
 	}
 }
diff --git a/lib/bin/sb_fota/os/sb_fota_settings.c b/lib/bin/sb_fota/os/sb_fota_settings.c
index 35bc80d..e8c106a 100644
--- a/lib/bin/sb_fota/os/sb_fota_settings.c
+++ b/lib/bin/sb_fota/os/sb_fota_settings.c
@@ -12,9 +12,12 @@
 #include <modem/modem_jwt.h>
 #include <modem/modem_info.h>
 #include <zephyr/sys/util_macro.h>
+#include <zephyr/logging/log.h>
 
 #define IMEI_LEN 15
 
+LOG_MODULE_REGISTER(sb_fota_settings, CONFIG_SB_FOTA_LOG_LEVEL);
+
 int sb_fota_settings_cloud_sec_tag_get(void)
 {
 	return CONFIG_SB_FOTA_TLS_SECURITY_TAG;
@@ -71,11 +74,11 @@ const char *sb_fota_settings_client_id_get(void)
 		int ret;
 		if (IS_ENABLED(CONFIG_SB_FOTA_ID_UUID)) {
 			if ((ret = get_uuid())) {
-				FOTA_LOG_ERR("Failed to read UUID (err %d)", ret);
+				LOG_ERR("Failed to read UUID (err %d)", ret);
 			}
 		} else {
 			if ((ret = get_imei())) {
-				FOTA_LOG_ERR("Failed to read IMEI (err %d)", ret);
+				LOG_ERR("Failed to read IMEI (err %d)", ret);
 			}
 		}
 	}