diff --git a/Makefile b/Makefile
index f1fecac..3b8cbd5 100644
--- a/Makefile
+++ b/Makefile
@@ -1,8 +1,14 @@
 
-# make 编译并下载
+# make 编译并下载，成功后自动打包到 release/
+# make pack 仅打包（需已编译生成 jl_isd.fw）
 # make VERBOSE=1 显示编译详细过程
 # make clean 清除编译临时文件
 #
+# USB 烧录（两套镜像都会生成，只烧其中一套）：
+#   .\build.bat          或  .\build.bat nokey   -> 烧不带 Key
+#   .\build.bat key                              -> 烧带 Key
+#   make BURN_KEY=1      与 build.bat key 相同
+#
 # 注意： Linux 下编译方式：
 #     1. 从 http://pkgman.jieliapp.com/doc/all 处找到下载链接
 #     2. 下载后，解压到 /opt/jieli 目录下，保证
@@ -31,6 +37,11 @@ export PATH:=$(TOOL_DIR);$(PATH)
 FIXBAT          := tools\utils\fixbat.exe # 用于处理 utf8->gbk 编码问题
 POST_SCRIPT     := cpu/br28/tools/download.bat
 RUN_POST_SCRIPT := cpu\br28\tools\download.bat
+PACK_SCRIPT     := powershell -NoProfile -ExecutionPolicy Bypass -File tools\pack_firmware.ps1
+# USB: 1/key/yes = flash keyed image; default = nokey
+ifneq ($(filter 1 key yes,$(BURN_KEY)),)
+export JL_BURN_KEY := 1
+endif
 else
 # Linux 下工具链位置
 TOOL_DIR := /opt/jieli/pi32v2/bin
@@ -53,6 +64,7 @@ export PATH:=$(TOOL_DIR):$(PATH)
 FIXBAT          := touch # Linux下不需要处理 bat 编码问题
 POST_SCRIPT     := cpu/br28/tools/download.sh
 RUN_POST_SCRIPT := bash $(POST_SCRIPT)
+PACK_SCRIPT     :=
 endif
 
 CC  := $(TOOL_DIR)/$(CC)
@@ -265,17 +277,9 @@ c_SRC_FILES := \
 	apps/common/audio/audio_utils.c \
 	apps/common/audio/decode/audio_key_tone.c \
 	apps/common/audio/decode/decode.c \
-	apps/common/audio/demo/audio_demo.c \
-	apps/common/audio/online_debug/aud_data_export.c \
-	apps/common/audio/online_debug/aud_mic_dut.c \
-	apps/common/audio/online_debug/aud_spatial_effect_dut.c \
-	apps/common/audio/online_debug/audio_online_debug.c \
 	apps/common/audio/sine_make.c \
 	apps/common/audio/uartPcmSender.c \
-	apps/common/audio/wm8978/iic.c \
-	apps/common/audio/wm8978/wm8978.c \
 	apps/common/bt_common/bt_test_api.c \
-	apps/common/cJSON/cJSON.c \
 	apps/common/config/app_config.c \
 	apps/common/config/bt_profile_config.c \
 	apps/common/config/ci_transport_uart.c \
@@ -285,35 +289,6 @@ c_SRC_FILES := \
 	apps/common/dev_manager/dev_manager.c \
 	apps/common/dev_manager/dev_reg.c \
 	apps/common/dev_manager/dev_update.c \
-	apps/common/device/gSensor/SC7A20.c \
-	apps/common/device/gSensor/STK8321.c \
-	apps/common/device/gSensor/da230.c \
-	apps/common/device/gSensor/gSensor_manage.c \
-	apps/common/device/gSensor/mpu6050.c \
-	apps/common/device/gx8002_npu/gx8002_enc/gx8002_enc.c \
-	apps/common/device/gx8002_npu/gx8002_npu.c \
-	apps/common/device/gx8002_npu/gx8002_npu_event_deal.c \
-	apps/common/device/gx8002_npu/gx8002_upgrade/app_upgrade/gx_uart_upgrade_app.c \
-	apps/common/device/gx8002_npu/gx8002_upgrade/app_upgrade/gx_uart_upgrade_tws.c \
-	apps/common/device/gx8002_npu/gx8002_upgrade/gx_uart_upgrade.c \
-	apps/common/device/gx8002_npu/gx8002_upgrade/gx_uart_upgrade_porting.c \
-	apps/common/device/gx8002_npu/gx8002_upgrade/sdfile_upgrade/gx_uart_upgrade_sdfile.c \
-	apps/common/device/gx8002_npu/gx8002_upgrade/spp_upgrade/gx_fifo.c \
-	apps/common/device/gx8002_npu/gx8002_upgrade/spp_upgrade/gx_uart_upgrade_spp.c \
-	apps/common/device/imu_sensor/icm_42670p/icm_42670p.c \
-	apps/common/device/imu_sensor/icm_42670p/inv_imu_apex.c \
-	apps/common/device/imu_sensor/icm_42670p/inv_imu_driver.c \
-	apps/common/device/imu_sensor/icm_42670p/inv_imu_transport.c \
-	apps/common/device/imu_sensor/imuSensor_manage.c \
-	apps/common/device/imu_sensor/lsm6dsl/lsm6dsl.c \
-	apps/common/device/imu_sensor/mpu6887/mpu6887p.c \
-	apps/common/device/imu_sensor/mpu9250/mpu9250.c \
-	apps/common/device/imu_sensor/qmi8658/qmi8658c.c \
-	apps/common/device/imu_sensor/sh3001/sh3001.c \
-	apps/common/device/in_ear_detect/in_ear_detect.c \
-	apps/common/device/in_ear_detect/in_ear_manage.c \
-	apps/common/device/ir_sensor/ir_manage.c \
-	apps/common/device/ir_sensor/jsa1221.c \
 	apps/common/device/key/adkey.c \
 	apps/common/device/key/adkey_rtcvdd.c \
 	apps/common/device/key/ctmu_touch_key.c \
@@ -323,7 +298,6 @@ c_SRC_FILES := \
 	apps/common/device/key/touch_key.c \
 	apps/common/device/key/uart_key.c \
 	apps/common/device/norflash/norflash_sfc.c \
-	apps/common/device/ntc/ntc_det.c \
 	apps/common/device/usb/device/cdc.c \
 	apps/common/device/usb/device/descriptor.c \
 	apps/common/device/usb/device/hid.c \
@@ -345,43 +319,11 @@ c_SRC_FILES := \
 	apps/common/device/usb/host/usb_storage.c \
 	apps/common/device/usb/usb_config.c \
 	apps/common/device/usb/usb_host_config.c \
-	apps/common/ezxml/ezxml.c \
-	apps/common/ezxml/ezxml_example.c \
 	apps/common/fat_nor/cfg_private.c \
 	apps/common/fat_nor/virfat_flash.c \
 	apps/common/file_operate/file_bs_deal.c \
 	apps/common/file_operate/file_manager.c \
-	apps/common/icsd/adt/icsd_adt.c \
-	apps/common/icsd/adt/icsd_adt_app.c \
-	apps/common/icsd/anc/icsd_anc_app.c \
-	apps/common/icsd/anc/icsd_anc_board.c \
-	apps/common/icsd/anc/icsd_anc_data.c \
-	apps/common/jl_kws/jl_kws_algo.c \
-	apps/common/jl_kws/jl_kws_audio.c \
-	apps/common/jl_kws/jl_kws_event.c \
-	apps/common/jl_kws/jl_kws_main.c \
-	apps/common/music/breakpoint.c \
-	apps/common/music/music_decrypt.c \
-	apps/common/music/music_id3.c \
-	apps/common/music/music_player.c \
 	apps/common/temp_trim/dtemp_pll_trim.c \
-	apps/common/test/fs_test.c \
-	apps/common/test/os_test.c \
-	apps/common/third_party_profile/Tecent_LL/tecent_ll_demo/ll_demo.c \
-	apps/common/third_party_profile/Tecent_LL/tecent_ll_demo/ll_task.c \
-	apps/common/third_party_profile/Tecent_LL/tecent_protocol/ble_qiot_import.c \
-	apps/common/third_party_profile/Tecent_LL/tecent_protocol/ble_qiot_llsync_data.c \
-	apps/common/third_party_profile/Tecent_LL/tecent_protocol/ble_qiot_llsync_device.c \
-	apps/common/third_party_profile/Tecent_LL/tecent_protocol/ble_qiot_llsync_event.c \
-	apps/common/third_party_profile/Tecent_LL/tecent_protocol/ble_qiot_llsync_ota.c \
-	apps/common/third_party_profile/Tecent_LL/tecent_protocol/ble_qiot_service.c \
-	apps/common/third_party_profile/Tecent_LL/tecent_protocol/ble_qiot_template.c \
-	apps/common/third_party_profile/Tecent_LL/tecent_protocol/ble_qiot_utils_base64.c \
-	apps/common/third_party_profile/Tecent_LL/tecent_protocol/ble_qiot_utils_crc.c \
-	apps/common/third_party_profile/Tecent_LL/tecent_protocol/ble_qiot_utils_hmac.c \
-	apps/common/third_party_profile/Tecent_LL/tecent_protocol/ble_qiot_utils_log.c \
-	apps/common/third_party_profile/Tecent_LL/tecent_protocol/ble_qiot_utils_md5.c \
-	apps/common/third_party_profile/Tecent_LL/tecent_protocol/ble_qiot_utils_sha1.c \
 	apps/common/third_party_profile/common/3th_profile_api.c \
 	apps/common/third_party_profile/common/custom_cfg.c \
 	apps/common/third_party_profile/common/mic_rec.c \
@@ -398,7 +340,6 @@ c_SRC_FILES := \
 	apps/common/third_party_profile/jieli/JL_rcsp/adv_app_setting/adv_anc_voice_key.c \
 	apps/common/third_party_profile/jieli/JL_rcsp/adv_app_setting/adv_bt_name_setting.c \
 	apps/common/third_party_profile/jieli/JL_rcsp/adv_app_setting/adv_eq_setting.c \
-	apps/common/third_party_profile/jieli/JL_rcsp/adv_app_setting/adv_hearing_aid_setting.c \
 	apps/common/third_party_profile/jieli/JL_rcsp/adv_app_setting/adv_high_low_vol_setting.c \
 	apps/common/third_party_profile/jieli/JL_rcsp/adv_app_setting/adv_key_setting.c \
 	apps/common/third_party_profile/jieli/JL_rcsp/adv_app_setting/adv_led_setting.c \
@@ -415,85 +356,26 @@ c_SRC_FILES := \
 	apps/common/third_party_profile/jieli/JL_rcsp/rcsp_updata/rcsp_adv_user_update.c \
 	apps/common/third_party_profile/jieli/JL_rcsp/rcsp_updata/rcsp_ch_loader_download.c \
 	apps/common/third_party_profile/jieli/JL_rcsp/rcsp_updata/rcsp_user_update.c \
-	apps/common/third_party_profile/jieli/le_hogp.c \
 	apps/common/third_party_profile/jieli/online_db/online_db_deal.c \
 	apps/common/third_party_profile/jieli/online_db/spp_online_db.c \
-	apps/common/third_party_profile/jieli/trans_data_demo/le_trans_data.c \
-	apps/common/third_party_profile/jieli/trans_data_demo/spp_trans_data.c \
-	apps/common/third_party_profile/jieli/wireless_mic/le_wireless_mic_client.c \
-	apps/common/third_party_profile/jieli/wireless_mic/le_wireless_mic_server.c \
-	apps/common/third_party_profile/tuya_protocol/app/demo/tuya_ble_app_demo.c \
-	apps/common/third_party_profile/tuya_protocol/app/demo/tuya_ota.c \
-	apps/common/third_party_profile/tuya_protocol/app/product_test/tuya_ble_app_production_test.c \
-	apps/common/third_party_profile/tuya_protocol/app/uart_common/tuya_ble_app_uart_common_handler.c \
-	apps/common/third_party_profile/tuya_protocol/extern_components/mbedtls/aes.c \
-	apps/common/third_party_profile/tuya_protocol/extern_components/mbedtls/ccm.c \
-	apps/common/third_party_profile/tuya_protocol/extern_components/mbedtls/hmac.c \
-	apps/common/third_party_profile/tuya_protocol/extern_components/mbedtls/md5.c \
-	apps/common/third_party_profile/tuya_protocol/extern_components/mbedtls/sha1.c \
-	apps/common/third_party_profile/tuya_protocol/extern_components/mbedtls/sha256.c \
-	apps/common/third_party_profile/tuya_protocol/port/tuya_ble_port.c \
-	apps/common/third_party_profile/tuya_protocol/port/tuya_ble_port_JL.c \
-	apps/common/third_party_profile/tuya_protocol/port/tuya_ble_port_peripheral.c \
-	apps/common/third_party_profile/tuya_protocol/sdk/src/tuya_ble_api.c \
-	apps/common/third_party_profile/tuya_protocol/sdk/src/tuya_ble_bulk_data.c \
-	apps/common/third_party_profile/tuya_protocol/sdk/src/tuya_ble_data_handler.c \
-	apps/common/third_party_profile/tuya_protocol/sdk/src/tuya_ble_event.c \
-	apps/common/third_party_profile/tuya_protocol/sdk/src/tuya_ble_event_handler.c \
-	apps/common/third_party_profile/tuya_protocol/sdk/src/tuya_ble_event_handler_weak.c \
-	apps/common/third_party_profile/tuya_protocol/sdk/src/tuya_ble_feature_weather.c \
-	apps/common/third_party_profile/tuya_protocol/sdk/src/tuya_ble_gatt_send_queue.c \
-	apps/common/third_party_profile/tuya_protocol/sdk/src/tuya_ble_heap.c \
-	apps/common/third_party_profile/tuya_protocol/sdk/src/tuya_ble_main.c \
-	apps/common/third_party_profile/tuya_protocol/sdk/src/tuya_ble_mem.c \
-	apps/common/third_party_profile/tuya_protocol/sdk/src/tuya_ble_mutli_tsf_protocol.c \
-	apps/common/third_party_profile/tuya_protocol/sdk/src/tuya_ble_queue.c \
-	apps/common/third_party_profile/tuya_protocol/sdk/src/tuya_ble_storage.c \
-	apps/common/third_party_profile/tuya_protocol/sdk/src/tuya_ble_unix_time.c \
-	apps/common/third_party_profile/tuya_protocol/sdk/src/tuya_ble_utils.c \
-	apps/common/ui/lcd_simple/lcd_simple_api.c \
-	apps/common/ui/lcd_simple/ui.c \
-	apps/common/ui/lcd_simple/ui_mainmenu.c \
 	apps/common/update/testbox_update.c \
 	apps/common/update/update.c \
 	apps/common/update/update_tws.c \
 	apps/common/update/update_tws_new.c \
-	apps/earphone/aec/br28/audio_aec.c \
-	apps/earphone/aec/br28/audio_aec_demo.c \
-	apps/earphone/aec/br28/audio_aec_dms.c \
-	apps/earphone/aec/br28/audio_aec_online.c \
-	apps/earphone/aec/br28/audio_cvp_3mic.c \
-	apps/earphone/aec/br28/audio_cvp_ais_3mic.c \
-	apps/earphone/app_ancbox.c \
-	apps/earphone/app_anctool.c \
 	apps/earphone/app_main.c \
-	apps/earphone/app_protocol_deal.c \
 	apps/earphone/app_task_switch.c \
 	apps/earphone/app_testbox.c \
-	apps/earphone/audio_enc_mpt_cvp_ctr.c \
-	apps/earphone/audio_enc_mpt_self.c \
 	apps/earphone/ble_adv.c \
-	apps/earphone/board/br28/board_jl7016g_hybrid.c \
-	apps/earphone/board/br28/board_jl7018f_demo.c \
-	apps/earphone/board/br28/board_jl701n_anc.c \
-	apps/earphone/board/br28/board_jl701n_btemitter.c \
 	apps/earphone/board/br28/board_jl701n_demo.c \
 	apps/earphone/bt_auto_test.c \
 	apps/earphone/bt_background.c \
 	apps/earphone/bt_ble.c \
-	apps/earphone/bt_ble_hid.c \
-	apps/earphone/bt_emitter.c \
-	apps/earphone/bt_tws.c \
 	apps/earphone/default_event_handler.c \
 	apps/earphone/dual_update_demo.c \
 	apps/earphone/earphone.c \
 	apps/earphone/eartch_event_deal.c \
-	apps/earphone/font/fontinit.c \
 	apps/earphone/idle.c \
 	apps/earphone/key_event_deal.c \
-	apps/earphone/kws_voice_event_deal.c \
-	apps/earphone/linein/linein.c \
-	apps/earphone/ll_sync_demo/ll_sync_demo.c \
 	apps/earphone/log_config/app_config.c \
 	apps/earphone/log_config/lib_btctrler_config.c \
 	apps/earphone/log_config/lib_btstack_config.c \
@@ -501,53 +383,33 @@ c_SRC_FILES := \
 	apps/earphone/log_config/lib_media_config.c \
 	apps/earphone/log_config/lib_system_config.c \
 	apps/earphone/log_config/lib_update_config.c \
-	apps/earphone/music/sd_music.c \
-	apps/earphone/pbg_demo.c \
 	apps/earphone/pc/pc.c \
 	apps/earphone/power_manage/app_charge.c \
-	apps/earphone/power_manage/app_chargestore.c \
 	apps/earphone/power_manage/app_power_manage.c \
-	apps/earphone/power_manage/app_umidigi_chargestore.c \
 	apps/earphone/rcsp/jl_phone_app.c \
 	apps/earphone/rcsp/rcsp_adv.c \
 	apps/earphone/tone_table.c \
-	apps/earphone/trans_data_demo/trans_data_demo.c \
-	apps/earphone/tuya/tuya_app.c \
-	apps/earphone/tuya/tuya_demo.c \
-	apps/earphone/ui/lcd_simple/my_demo.c \
 	apps/earphone/ui_manage.c \
 	apps/earphone/user_cfg.c \
 	apps/earphone/version.c \
-	apps/earphone/vol_sync.c \
-	apps/earphone/wireless_mic/app_main_wireless_mic.c \
-	apps/earphone/wireless_mic/audio/adapter_adc.c \
-	apps/earphone/wireless_mic/audio/adapter_media.c \
-	apps/earphone/wireless_mic/audio/wireless/adapter_wireless_dec.c \
-	apps/earphone/wireless_mic/audio/wireless/adapter_wireless_enc.c \
-	apps/earphone/wireless_mic/bt/bt_edr_fun.c \
-	apps/earphone/wireless_mic/bt/bt_status_event.c \
-	apps/earphone/wireless_mic/idev/adapter_idev.c \
-	apps/earphone/wireless_mic/idev/idev_bt/adapter_idev_bt.c \
-	apps/earphone/wireless_mic/idev/idev_bt/idev_ble/adapter_idev_ble.c \
-	apps/earphone/wireless_mic/idev/idev_mic/adapter_idev_mic.c \
-	apps/earphone/wireless_mic/odev/adapter_odev.c \
-	apps/earphone/wireless_mic/odev/odev_bt/adapter_odev_bt.c \
-	apps/earphone/wireless_mic/odev/odev_bt/odev_ble/adapter_odev_ble.c \
-	apps/earphone/wireless_mic/odev/odev_bt/odev_ble/odev_ble_wireless.c \
-	apps/earphone/wireless_mic/odev/odev_bt/odev_edr/adapter_odev_edr.c \
-	apps/earphone/wireless_mic/odev/odev_dac/adapter_odev_dac.c \
-	apps/earphone/wireless_mic/process/adapter_process.c \
+	apps/usr_jb_proto/Protocol/jb_product.c \
+	apps/usr_jb_proto/Protocol/jb_protocol.c \
+	apps/usr_jb_proto/Utils/jb_common.c \
+	apps/usr_jb_proto/Utils/jb_ringbuffer.c \
+	apps/usr_jb_proto/usr_jb_main.c \
+	apps/usr_periph/usr_rtc.c \
+	apps/usr_le_code/ble_proto.c \
+	apps/usr_le_code/bleproto.c \
+	apps/usr_le_code/bleproto_packer.c \
+	apps/usr_le_code/thirdpart/mjson/mjson.c \
+	apps/usr_le_code/usr_le_adv.c \
+	apps/usr_le_code/usr_le_recieve.c \
 	cpu/br28/adc_api.c \
-	cpu/br28/aec_tool.c \
 	cpu/br28/app_audio.c \
-	cpu/br28/audio_anc.c \
-	cpu/br28/audio_anc_fade_ctr.c \
-	cpu/br28/audio_anc_mult_scene.c \
 	cpu/br28/audio_capture.c \
 	cpu/br28/audio_codec_clock.c \
 	cpu/br28/audio_common/audio_mic_codec.c \
 	cpu/br28/audio_cvp_dut.c \
-	cpu/br28/audio_cvp_sync.c \
 	cpu/br28/audio_dec.c \
 	cpu/br28/audio_dec/audio_dec_file.c \
 	cpu/br28/audio_dec/audio_dec_iis.c \
@@ -555,17 +417,8 @@ c_SRC_FILES := \
 	cpu/br28/audio_dec/audio_dec_pcm.c \
 	cpu/br28/audio_dec/audio_usb_mic.c \
 	cpu/br28/audio_dec_eff.c \
-	cpu/br28/audio_demo/audio_adc_demo.c \
-	cpu/br28/audio_demo/audio_dac_demo.c \
-	cpu/br28/audio_demo/audio_fft_demo.c \
-	cpu/br28/audio_demo/audio_matrix_demo.c \
-	cpu/br28/audio_demo/audio_wind_detect_demo.c \
-	cpu/br28/audio_effect_develop.c \
 	cpu/br28/audio_enc.c \
 	cpu/br28/audio_general.c \
-	cpu/br28/audio_hearing/audio_hearing_aid.c \
-	cpu/br28/audio_hearing/audio_hearing_aid_lp.c \
-	cpu/br28/audio_hearing/audio_sidetone.c \
 	cpu/br28/audio_link.c \
 	cpu/br28/audio_sync.c \
 	cpu/br28/charge.c \
@@ -573,7 +426,6 @@ c_SRC_FILES := \
 	cpu/br28/clock_manager.c \
 	cpu/br28/eq_config.c \
 	cpu/br28/hw_fft.c \
-	cpu/br28/icsd_anc_user.c \
 	cpu/br28/iic_hw.c \
 	cpu/br28/iic_soft.c \
 	cpu/br28/irflt.c \
@@ -594,43 +446,13 @@ c_SRC_FILES := \
 	cpu/br28/pwm_led.c \
 	cpu/br28/rdec.c \
 	cpu/br28/setup.c \
-	cpu/br28/smart_voice/aispeech_asr.c \
-	cpu/br28/smart_voice/jl_kws_platform.c \
-	cpu/br28/smart_voice/kws_event.c \
-	cpu/br28/smart_voice/nn_vad.c \
-	cpu/br28/smart_voice/smart_voice_config.c \
-	cpu/br28/smart_voice/smart_voice_core.c \
-	cpu/br28/smart_voice/user_asr.c \
-	cpu/br28/smart_voice/vad_clock_trim.c \
-	cpu/br28/smart_voice/vad_mic.c \
-	cpu/br28/smart_voice/voice_mic_data.c \
 	cpu/br28/sound_device.c \
-	cpu/br28/spatial_effect/spatial_effect.c \
-	cpu/br28/spatial_effect/spatial_effect_imu.c \
-	cpu/br28/spatial_effect/spatial_effect_test.c \
-	cpu/br28/spatial_effect/spatial_effect_tws.c \
-	cpu/br28/spatial_effect/spatial_imu_trim.c \
 	cpu/br28/spi.c \
 	cpu/br28/tone_player.c \
 	cpu/br28/tws_audio.c \
 	cpu/br28/uart_dev.c \
-	cpu/br28/umidigi_chargestore.c \
-	apps/usr_jb_proto/Protocol/jb_product.c \
-	apps/usr_jb_proto/Protocol/jb_protocol.c \
-	apps/usr_jb_proto/Utils/jb_common.c \
-	apps/usr_jb_proto/Utils/jb_ringbuffer.c \
-	apps/usr_jb_proto/usr_jb_main.c \
-	apps/usr_periph/usr_rtc.c \
-	apps/usr_le_code/ble_proto.c \
-	apps/usr_le_code/bleproto.c \
-	apps/usr_le_code/bleproto_packer.c \
-	apps/usr_le_code/thirdpart/mjson/mjson.c \
-	apps/usr_le_code/usr_le_adv.c \
-	apps/usr_le_code/usr_le_recieve.c \
+	cpu/br28/uart_test.c
 
-
-
-# 需要编译的 .S 文件
 S_SRC_FILES := \
 	apps/earphone/sdk_version.z.S \
 
@@ -789,7 +611,7 @@ LINK_AT ?= 1
 # 表示下面的不是一个文件的名字，无论是否存在 all, clean, pre_build 这样的文件
 # 还是要执行命令
 # see: https://www.gnu.org/software/make/manual/html_node/Phony-Targets.html
-.PHONY: all clean pre_build
+.PHONY: all clean pre_build pack
 
 # 不要使用 make 预设置的规则
 # see: https://www.gnu.org/software/make/manual/html_node/Suffix-Rules.html
@@ -798,6 +620,18 @@ LINK_AT ?= 1
 all: pre_build $(OUT_ELF)
 	$(info +POST-BUILD)
 	$(QUITE) $(RUN_POST_SCRIPT) sdk
+ifneq ($(PACK_SCRIPT),)
+	$(info +PACK-FIRMWARE)
+	$(QUITE) $(PACK_SCRIPT)
+endif
+
+pack:
+	$(info +PACK-FIRMWARE)
+ifneq ($(PACK_SCRIPT),)
+	$(QUITE) $(PACK_SCRIPT)
+else
+	$(error pack script is Windows-only)
+endif
 
 
 pre_build:
diff --git a/build.bat b/build.bat
new file mode 100644
index 0000000..fca5f41
--- /dev/null
+++ b/build.bat
@@ -0,0 +1,30 @@
+@echo off
+chcp 65001 >nul
+cd /d "%~dp0"
+setlocal EnableDelayedExpansion
+
+REM JieLi make / mkdir_win / rm / fixbat live in tools\utils, not in system PATH
+set "PATH=%~dp0tools\utils;%PATH%"
+
+REM USB burn: default WITH key.  build.bat nokey to burn without key
+set "JL_BURN_KEY=1"
+set "MAKE_ARGS="
+
+for %%A in (%*) do (
+    if /i "%%~A"=="key" (
+        set "JL_BURN_KEY=1"
+    ) else if /i "%%~A"=="nokey" (
+        set "JL_BURN_KEY=0"
+    ) else (
+        set "MAKE_ARGS=!MAKE_ARGS! %%~A"
+    )
+)
+
+if "!JL_BURN_KEY!"=="1" (
+    echo [build] USB burn: WITH key
+) else (
+    echo [build] USB burn: NO key
+)
+
+make !MAKE_ARGS!
+exit /b !errorlevel!
diff --git a/tools/pack_firmware.bat b/tools/pack_firmware.bat
new file mode 100644
index 0000000..957c19b
--- /dev/null
+++ b/tools/pack_firmware.bat
@@ -0,0 +1,12 @@
+@echo off
+chcp 65001 >nul
+cd /d "%~dp0"
+powershell -NoProfile -ExecutionPolicy Bypass -File "%~dp0pack_firmware.ps1"
+if errorlevel 1 (
+    echo.
+    echo pack failed.
+    pause
+    exit /b 1
+)
+echo.
+pause
\ No newline at end of file
diff --git a/tools/pack_firmware.ps1 b/tools/pack_firmware.ps1
new file mode 100644
index 0000000..52395dc
--- /dev/null
+++ b/tools/pack_firmware.ps1
@@ -0,0 +1,168 @@
+# pack_firmware.ps1
+# Extract JieLi burn files and zip as Project_Version_Date.
+# ASCII only: Windows PowerShell 5.1 mis-parses UTF-8 without BOM.
+#
+# Usage:
+#   .\build.bat        - build + download.bat + pack
+#   make pack          - pack only
+#   tools\pack_firmware.bat
+
+[CmdletBinding()]
+param(
+    [string]$ProjectName = "JBao_Heat_Pad",
+    [string]$SdkRoot = ""
+)
+
+$ErrorActionPreference = "Stop"
+$exitCode = 0
+
+try {
+
+if ([string]::IsNullOrWhiteSpace($SdkRoot)) {
+    $SdkRoot = Split-Path -Parent $PSScriptRoot
+}
+
+$VersionHeader = Join-Path $SdkRoot "apps\usr_jb_proto\Protocol\jb_product.h"
+$DownloadDir   = Join-Path $SdkRoot "cpu\br28\tools\download\earphone"
+$ReleaseRoot   = Join-Path $SdkRoot "release"
+
+function Read-FwVersion {
+    param([string]$HeaderPath)
+
+    if (-not (Test-Path -LiteralPath $HeaderPath)) {
+        throw "version header not found: $HeaderPath"
+    }
+
+    $text = Get-Content -LiteralPath $HeaderPath -Raw -Encoding UTF8
+    $major = $null
+    $minor = $null
+    $patch = $null
+
+    if ($text -match '(?m)^\s*#define\s+JB_MCU_SW_VERSION_MAJOR\s+(\d+)') {
+        $major = $Matches[1]
+    }
+    if ($text -match '(?m)^\s*#define\s+JB_MCU_SW_VERSION_MINOR\s+(\d+)') {
+        $minor = $Matches[1]
+    }
+    if ($text -match '(?m)^\s*#define\s+JB_MCU_SW_VERSION_PATCH\s+(\d+)') {
+        $patch = $Matches[1]
+    }
+
+    if (($null -eq $major) -or ($null -eq $minor) -or ($null -eq $patch)) {
+        throw "cannot parse JB_MCU_SW_VERSION_* from $HeaderPath"
+    }
+
+    return "V$major.$minor.$patch"
+}
+
+$PackItems = @(
+    @{ Name = "jl_isd_nokey.fw";          Fallback = "jl_isd.fw";          Suffix = "_nokey_burner.fw";      Required = $true;  NoteKey = "burner_nokey" },
+    @{ Name = "update_nokey.ufw";         Fallback = "update.ufw";         Suffix = "_nokey_app_ota.ufw";    Required = $false; NoteKey = "app_nokey" },
+    @{ Name = "db_update_data_nokey.bin"; Fallback = "db_update_data.bin"; Suffix = "_nokey_gateway_ota.bin"; Required = $false; NoteKey = "gw_nokey" },
+    @{ Name = "jl_isd_key.fw";            Fallback = "";                  Suffix = "_key_burner.fw";        Required = $false; NoteKey = "burner_key" },
+    @{ Name = "update_key.ufw";           Fallback = "";                  Suffix = "_key_app_ota.ufw";      Required = $false; NoteKey = "app_key" },
+    @{ Name = "db_update_data_key.bin";   Fallback = "";                  Suffix = "_key_gateway_ota.bin";  Required = $false; NoteKey = "gw_key" }
+)
+
+$NoteZh = @{}
+$notesFile = Join-Path $PSScriptRoot "pack_notes_zh.txt"
+Get-Content -LiteralPath $notesFile -Encoding UTF8 | ForEach-Object {
+    if ($_ -match '^([^|]+)\|(.*)$') {
+        $NoteZh[$Matches[1].Trim()] = $Matches[2].Trim()
+    }
+}
+
+Write-Host "========================================"
+Write-Host " pack firmware"
+Write-Host "========================================"
+
+$version = Read-FwVersion -HeaderPath $VersionHeader
+$dateStr = Get-Date -Format "yyMMddHHmm"
+$pkgName = "${ProjectName}_${version}_${dateStr}"
+
+Write-Host "project : $ProjectName"
+Write-Host "version : $version  (from jb_product.h)"
+Write-Host "date    : $dateStr"
+Write-Host "source  : $DownloadDir"
+Write-Host ""
+
+if (-not (Test-Path -LiteralPath $DownloadDir)) {
+    throw "download dir not found, compile the project first: $DownloadDir"
+}
+
+$copied = @()
+foreach ($item in $PackItems) {
+    $src = Join-Path $DownloadDir $item.Name
+    if (-not (Test-Path -LiteralPath $src) -and $item.Fallback) {
+        $src = Join-Path $DownloadDir $item.Fallback
+    }
+    if (Test-Path -LiteralPath $src) {
+        $item.Src = $src
+        $item.Dest = $pkgName + $item.Suffix
+        $copied += $item
+        continue
+    }
+    if ($item.Required) {
+        throw "missing required file: $($item.Name); please build the firmware first."
+    }
+    Write-Host "[skip] $($item.Name) not generated"
+}
+
+if ($copied.Count -eq 0) {
+    throw "no firmware files found in $DownloadDir"
+}
+
+$pkgDir = Join-Path $ReleaseRoot $pkgName
+if (Test-Path -LiteralPath $pkgDir) {
+    Remove-Item -LiteralPath $pkgDir -Recurse -Force
+}
+New-Item -ItemType Directory -Path $pkgDir -Force | Out-Null
+
+foreach ($item in $copied) {
+    Copy-Item -LiteralPath $item.Src -Destination (Join-Path $pkgDir $item.Dest) -Force
+    $size = (Get-Item -LiteralPath $item.Src).Length
+    Write-Host ("[copy] {0,-28} -> {1}  ({2} bytes)" -f (Split-Path $item.Src -Leaf), $item.Dest, $size)
+}
+
+$fileList = New-Object System.Collections.Generic.List[string]
+foreach ($item in $copied) {
+    $note = $NoteZh[$item.NoteKey]
+    [void]$fileList.Add(("  {0}" -f $item.Dest))
+    [void]$fileList.Add(("    {0}" -f $note))
+}
+
+$tplPath = Join-Path $PSScriptRoot "pack_readme_zh.txt"
+$readme = Get-Content -LiteralPath $tplPath -Raw -Encoding UTF8
+$readme = $readme.Replace("{{PKG_NAME}}", $pkgName)
+$readme = $readme.Replace("{{PROJECT}}", $ProjectName)
+$readme = $readme.Replace("{{VERSION}}", $version)
+$readme = $readme.Replace("{{DATE}}", (Get-Date -Format "yyyy-MM-dd HH:mm:ss"))
+$readme = $readme.Replace("{{FILE_LIST}}", ($fileList -join "`r`n"))
+$readme = $readme -replace "`n", "`r`n"
+$readme = $readme -replace "`r`r`n", "`r`n"
+[System.IO.File]::WriteAllText(
+    (Join-Path $pkgDir "README.txt"),
+    $readme,
+    [System.Text.UTF8Encoding]::new($true)
+)
+
+$zipPath = Join-Path $ReleaseRoot "$pkgName.zip"
+if (Test-Path -LiteralPath $zipPath) {
+    Remove-Item -LiteralPath $zipPath -Force
+}
+
+Compress-Archive -Path (Join-Path $pkgDir "*") -DestinationPath $zipPath -CompressionLevel Optimal
+
+Write-Host ""
+Write-Host "folder : $pkgDir"
+Write-Host "zip    : $zipPath"
+Write-Host "done."
+Write-Host "========================================"
+
+} catch {
+    Write-Host ""
+    Write-Host "pack failed: $($_.Exception.Message)"
+    $exitCode = 1
+}
+
+exit $exitCode
diff --git a/tools/pack_notes_zh.txt b/tools/pack_notes_zh.txt
new file mode 100644
index 0000000..605f28a
--- /dev/null
+++ b/tools/pack_notes_zh.txt
@@ -0,0 +1,6 @@
+burner_nokey|不带 Key：产线批量烧录器镜像（调试、未加密芯片）
+app_nokey|不带 Key：手机 APP / 小程序 OTA（UFW）
+gw_nokey|不带 Key：55AA 服务器 OTA / 网关 OTA（杰理双备份包）
+burner_key|带 Key：产线批量烧录器镜像（烧录器需配置同一把 key）
+app_key|带 Key：手机 APP / 小程序 OTA（UFW）
+gw_key|带 Key：55AA 服务器 OTA / 网关 OTA（杰理双备份包）
diff --git a/tools/pack_readme_zh.txt b/tools/pack_readme_zh.txt
new file mode 100644
index 0000000..6181b79
--- /dev/null
+++ b/tools/pack_readme_zh.txt
@@ -0,0 +1,20 @@
+包名    : {{PKG_NAME}}
+项目    : {{PROJECT}}
+版本    : {{VERSION}}
+日期    : {{DATE}}
+
+文件说明：
+{{FILE_LIST}}
+
+使用说明：
+1. 批量烧录器：打开 *_burner.fw。
+2. 杰理 UFW 通道（部分 APP / 小程序）：上传 *_app_ota.ufw。
+3. 走本协议 55AA 的服务器 OTA（APP / 小程序 / 网关都一样）：上传 *_gateway_ota.bin。
+   Type=0x02（BLE），不要传 ufw / fw / 普通 app.bin。
+4. 杰理网关若单独吃双备份包：同样用 *_gateway_ota.bin。
+
+不带 Key（*_nokey_*）：调试、未加密芯片。
+带 Key（*_key_*）：加密镜像，烧录器 / 升级工具必须配置同一把 key（RS-5B88）。
+
+本包不包含 .key 文件，请不要把工厂 key 发给终端用户。
+本机 USB：.\build.bat 默认烧 nokey；.\build.bat key 烧带 Key。两套文件都会打包。